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Materials Data on I2(OF2)3 by Materials Project

I2(OF2)3 is alpha Niobium phosphide-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two I2(OF2)3 clusters. there are three inequivalent O sites. In the first O site, O is bonded in a distorted bent 120 degrees geometry to two I atoms. There are one shorter (1.82 Å) and one longer (2.32 Å) O–I bond lengths. In the second O site, O is bonded in a distorted bent 120 degrees geometry to two I atoms. There are one shorter (1.83 Å) and one longer (2.28 Å) O–I bond lengths. In the third O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 1.76 Å. There are two inequivalent I sites. In the first I site, I is bonded to three O and two F atoms to form distorted corner-sharing IO3F2 square pyramids. The corner-sharing octahedral tilt angles are 47°. There is one shorter (1.90 Å) and one longer (1.91 Å) I–F bond length. In the second I site, I is bonded to two O and four F atoms to form corner-sharing IO2F4 octahedra. There is one shorter (1.87 Å) and three longer (1.88 Å) I–F bond length. There are six inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one I atom. In the second F site, F is bonded in a single-bond geometry to one I atom. In the third F site, F is bonded in a single-bond geometry to one I atom. In the fourth F site, F is bonded in a single-bond geometry to one I atom. In the fifth F site, F is bonded in a single-bond geometry to one I atom. In the sixth F site, F is bonded in a single-bond geometry to one I atom.

36 MATERIALS SCIENCE↗

Materials Data on IO2F by Materials Project

O2IF crystallizes in the orthorhombic P2_12_12_1 space group. The structure is one-dimensional and consists of two O2IF ribbons oriented in the (0, 1, 0) direction. there are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent I5+ atoms. There are one shorter (1.84 Å) and one longer (2.23 Å) O–I bond lengths. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one I5+ atom. The O–I bond length is 1.79 Å. I5+ is bonded in a 4-coordinate geometry to three O2- and one F1- atom. The I–F bond length is 1.95 Å. F1- is bonded in a single-bond geometry to one I5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on IOF3 by Materials Project

OIF3 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is zero-dimensional and consists of four OIF3 clusters. O2- is bonded in a distorted single-bond geometry to one I5+ atom. The O–I bond length is 1.77 Å. I5+ is bonded in a 4-coordinate geometry to one O2- and three F1- atoms. There are a spread of I–F bond distances ranging from 1.89–1.98 Å. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one I5+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one I5+ atom. In the third F1- site, F1- is bonded in a distorted single-bond geometry to one I5+ atom.

36 MATERIALS SCIENCE↗