Materials Data on UH16C6Se(NO2)4 by Materials Project
UC6H16Se(NO2)4 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of two UC6H16Se(NO2)4 ribbons oriented in the (1, 0, 0) direction. U6+ is bonded to seven O2- atoms to form distorted UO7 pentagonal bipyramids that share corners with three equivalent SeO4 tetrahedra. There are a spread of U–O bond distances ranging from 1.81–2.47 Å. There are six inequivalent C+1.33+ sites. In the first C+1.33+ site, C+1.33+ is bonded in a tetrahedral geometry to one N3- and three H1+ atoms. The C–N bond length is 1.45 Å. All C–H bond lengths are 1.10 Å. In the second C+1.33+ site, C+1.33+ is bonded in a tetrahedral geometry to one N3- and three H1+ atoms. The C–N bond length is 1.45 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the third C+1.33+ site, C+1.33+ is bonded in a tetrahedral geometry to one N3- and three H1+ atoms. The C–N bond length is 1.45 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the fourth C+1.33+ site, C+1.33+ is bonded in a tetrahedral geometry to one N3- and three H1+ atoms. The C–N bond length is 1.45 Å. All C–H bond lengths are 1.10 Å. In the fifth C+1.33+ site, C+1.33+ is bonded in a trigonal planar geometry to two N3- and one O2- atom. Both C–N bond lengths are 1.35 Å. The C–O bond length is 1.27 Å. In the sixth C+1.33+ site, C+1.33+ is bonded in a trigonal planar geometry to two N3- and one O2- atom. Both C–N bond lengths are 1.35 Å. The C–O bond length is 1.27 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal planar geometry to two C+1.33+ and one H1+ atom. The N–H bond length is 1.02 Å. In the second N3- site, N3- is bonded in a trigonal planar geometry to two C+1.33+ and one H1+ atom. The N–H bond length is 1.02 Å. In the third N3- site, N3- is bonded in a trigonal planar geometry to two C+1.33+ and one H1+ atom. The N–H bond length is 1.02 Å. In the fourth N3- site, N3- is bonded in a trigonal planar geometry to two C+1.33+ and one H1+ atom. The N–H bond length is 1.02 Å. There are sixteen inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the thirteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the fourteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the fifteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. In the sixteenth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33+ atom. Se2- is bonded to four O2- atoms to form SeO4 tetrahedra that share corners with three equivalent UO7 pentagonal bipyramids. There are a spread of Se–O bond distances ranging from 1.66–1.69 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one U6+ and one Se2- atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one U6+ and one C+1.33+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one U6+ and one C+1.33+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Se2- atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one U6+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one U6+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one U6+ and one Se2- atom. In the eighth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one U6+ and one Se2- atom.