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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on H5IO6 by Materials Project

H5IO6 crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of two H5IO6 ribbons oriented in the (0, 1, 0) direction. In one of the H5IO6 ribbons, there are ten inequivalent H sites. In the first H site, H is bonded in a distorted single-bond geometry to two O atoms. There is one shorter (1.01 Å) and one longer (1.68 Å) H–O bond length. In the second H site, H is bonded in a distorted single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the third H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.62 Å) H–O bond length. In the fourth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the sixth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. In the seventh H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the eighth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.62 Å) H–O bond length. In the ninth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. In the tenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the second O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. In the third O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the fourth O site, O is bonded in a trigonal planar geometry to two H and one I atom. The O–I bond length is 1.82 Å. In the fifth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the sixth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the seventh O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the eighth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the ninth O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.81 Å. In the tenth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the eleventh O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the twelfth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. There are two inequivalent I sites. In the first I site, I is bonded in an octahedral geometry to six O atoms. In the second I site, I is bonded in an octahedral geometry to six O atoms. In one of the H5IO6 ribbons, there are ten inequivalent H sites. In the first H site, H is bonded in a distorted single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the second H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.02 Å) and one longer (1.62 Å) H–O bond length. In the third H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.04 Å) and one longer (1.53 Å) H–O bond length. In the fourth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the sixth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the seventh H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the eighth H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.64 Å) H–O bond length. In the ninth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the tenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. In the second O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. In the third O site, O is bonded in a trigonal planar geometry to two H and one I atom. The O–I bond length is 1.83 Å. In the fourth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the fifth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the sixth O site, O is bonded in a distorted bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the seventh O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.97 Å. In the eighth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.96 Å. In the ninth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the tenth O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.81 Å. In the eleventh O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the twelfth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. There are two inequivalent I sites. In the first I site, I is bonded in an octahedral geometry to six O atoms. In the second I site, I is bonded in an octahedral geometry to six O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H5IO6 by Materials Project

H5IO6 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of two H5IO6 ribbons oriented in the (1, 0, 1) direction. there are five inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the third H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. In the fourth H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.02 Å) and one longer (1.62 Å) H–O bond length. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. There are six inequivalent O sites. In the first O site, O is bonded in a trigonal planar geometry to two H and one I atom. The O–I bond length is 1.83 Å. In the second O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.90 Å. In the third O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the fourth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. In the fifth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the sixth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.92 Å. I is bonded in an octahedral geometry to six O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H5IO6 by Materials Project

H5IO6 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of two H5IO6 ribbons oriented in the (1, 0, 1) direction. there are five inequivalent H sites. In the first H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.02 Å) and one longer (1.64 Å) H–O bond length. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the third H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the fourth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.02 Å) and one longer (1.60 Å) H–O bond length. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. There are six inequivalent O sites. In the first O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the second O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the third O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.90 Å. In the fourth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the fifth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the sixth O site, O is bonded in a trigonal planar geometry to two H and one I atom. The O–I bond length is 1.83 Å. I is bonded in an octahedral geometry to six O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H5IO6 by Materials Project

H5IO6 crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of two H5IO6 ribbons oriented in the (0, 1, 0) direction. there are ten inequivalent H sites. In the first H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.59 Å) H–O bond length. In the second H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. In the third H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the fourth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the sixth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the seventh H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. In the eighth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.59 Å) H–O bond length. In the ninth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the tenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.01 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the second O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the third O site, O is bonded in a trigonal planar geometry to two H and one I atom. The O–I bond length is 1.83 Å. In the fourth O site, O is bonded in a trigonal planar geometry to two H and one I atom. The O–I bond length is 1.83 Å. In the fifth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the sixth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the seventh O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.96 Å. In the eighth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the ninth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the tenth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the eleventh O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the twelfth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. There are two inequivalent I sites. In the first I site, I is bonded in an octahedral geometry to six O atoms. In the second I site, I is bonded in an octahedral geometry to six O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H5IO6 by Materials Project

H5IO6 crystallizes in the monoclinic P2_1 space group. The structure is two-dimensional and consists of two H5IO6 sheets oriented in the (0, 1, 0) direction. there are ten inequivalent H sites. In the first H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.09 Å) and one longer (1.40 Å) H–O bond length. In the second H site, H is bonded in a distorted single-bond geometry to two O atoms. There is one shorter (1.01 Å) and one longer (1.66 Å) H–O bond length. In the third H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.07 Å) and one longer (1.42 Å) H–O bond length. In the fourth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.09 Å) and one longer (1.37 Å) H–O bond length. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. In the sixth H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.02 Å) and one longer (1.64 Å) H–O bond length. In the seventh H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the eighth H site, H is bonded in a distorted single-bond geometry to two O atoms. There is one shorter (1.01 Å) and one longer (1.70 Å) H–O bond length. In the ninth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the tenth H site, H is bonded in a distorted single-bond geometry to one O atom. The H–O bond length is 1.01 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a distorted bent 120 degrees geometry to two H and one I atom. The O–I bond length is 2.04 Å. In the second O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the third O site, O is bonded in a distorted trigonal planar geometry to two H and one I atom. The O–I bond length is 1.93 Å. In the fourth O site, O is bonded in a distorted trigonal planar geometry to two H and one I atom. The O–I bond length is 1.85 Å. In the fifth O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.84 Å. In the sixth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the seventh O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the eighth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. In the ninth O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.81 Å. In the tenth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.90 Å. In the eleventh O site, O is bonded in a distorted single-bond geometry to two H and one I atom. The O–I bond length is 1.99 Å. In the twelfth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.92 Å. There are two inequivalent I sites. In the first I site, I is bonded in an octahedral geometry to six O atoms. In the second I site, I is bonded in an octahedral geometry to six O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H5IO6 by Materials Project

H5IO6 crystallizes in the monoclinic P2_1 space group. The structure is two-dimensional and consists of two H5IO6 sheets oriented in the (0, 1, 0) direction. there are ten inequivalent H sites. In the first H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.08 Å) and one longer (1.42 Å) H–O bond length. In the second H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.04 Å) and one longer (1.60 Å) H–O bond length. In the third H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.08 Å) and one longer (1.40 Å) H–O bond length. In the fourth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the sixth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the seventh H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.01 Å) and one longer (1.62 Å) H–O bond length. In the eighth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. In the ninth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the tenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a distorted bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.88 Å. In the second O site, O is bonded in a distorted trigonal planar geometry to two H and one I atom. The O–I bond length is 1.99 Å. In the third O site, O is bonded in a distorted trigonal planar geometry to two H and one I atom. The O–I bond length is 1.90 Å. In the fourth O site, O is bonded in a trigonal planar geometry to two H and one I atom. The O–I bond length is 1.86 Å. In the fifth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the sixth O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.82 Å. In the seventh O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.94 Å. In the eighth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the ninth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.89 Å. In the tenth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the eleventh O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the twelfth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.97 Å. There are two inequivalent I sites. In the first I site, I is bonded in an octahedral geometry to six O atoms. In the second I site, I is bonded in an octahedral geometry to six O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H5IO6 by Materials Project

H5IO6 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one H5IO6 sheet oriented in the (0, 0, 1) direction. there are twenty inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the third H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.06 Å) and one longer (1.49 Å) H–O bond length. In the fourth H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.57 Å) H–O bond length. In the fifth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.07 Å) and one longer (1.40 Å) H–O bond length. In the sixth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.03 Å) and one longer (1.59 Å) H–O bond length. In the seventh H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.04 Å) and one longer (1.51 Å) H–O bond length. In the eighth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.05 Å) and one longer (1.48 Å) H–O bond length. In the ninth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. In the tenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the eleventh H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. In the twelfth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the thirteenth H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.02 Å) and one longer (1.63 Å) H–O bond length. In the fourteenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the fifteenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the sixteenth H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.01 Å) and one longer (1.61 Å) H–O bond length. In the seventeenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the eighteenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. In the nineteenth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the twentieth H site, H is bonded in a linear geometry to two O atoms. There is one shorter (1.05 Å) and one longer (1.53 Å) H–O bond length. There are twenty-four inequivalent O sites. In the first O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the second O site, O is bonded in a 3-coordinate geometry to two H and one I atom. The O–I bond length is 2.00 Å. In the third O site, O is bonded in a distorted trigonal planar geometry to two H and one I atom. The O–I bond length is 1.96 Å. In the fourth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.91 Å. In the fifth O site, O is bonded in a distorted bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.86 Å. In the sixth O site, O is bonded in a distorted trigonal planar geometry to two H and one I atom. The O–I bond length is 1.96 Å. In the seventh O site, O is bonded in a distorted bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the eighth O site, O is bonded in a distorted trigonal planar geometry to two H and one I atom. The O–I bond length is 1.92 Å. In the ninth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the tenth O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 1.81 Å. In the eleventh O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.84 Å. In the twelfth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the thirteenth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the fourteenth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.99 Å. In the fifteenth O site, O is bonded in a 3-coordinate geometry to two H and one I atom. The O–I bond length is 1.98 Å. In the sixteenth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.93 Å. In the seventeenth O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the eighteenth O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.85 Å. In the nineteenth O site, O is bonded in a bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.82 Å. In the twentieth O site, O is bonded in a distorted water-like geometry to one H and one I atom. The O–I bond length is 1.89 Å. In the twenty-first O site, O is bonded in a distorted bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.92 Å. In the twenty-second O site, O is bonded in a distorted single-bond geometry to one H and one I atom. The O–I bond length is 1.95 Å. In the twenty-third O site, O is bonded in a distorted single-bond geometry to two H and one I atom. The O–I bond length is 2.00 Å. In the twenty-fourth O site, O is bonded in a distorted bent 120 degrees geometry to one H and one I atom. The O–I bond length is 1.89 Å. There are four inequivalent I sites. In the first I site, I is bonded in an octahedral geometry to six O atoms. In the second I site, I is bonded in an octahedral geometry to six O atoms. In the third I site, I is bonded in an octahedral geometry to six O atoms. In the fourth I site, I is bonded in an octahedral geometry to six O atoms.

36 MATERIALS SCIENCE↗