Orientational disorder in Lambda-cobalt(III) sepulchrate trinitrate.
Orientational disorder in Lambda-cobalt(III) sepulchrate trinitrate.
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拉姆达-钴(III)坟墓三硝酸盐的定向障碍
DOI:
10.1107/s0108270110005755
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
F. K. Larsen
中科院分区:
文献类型:
--
作者:
A. Schönleber;S. van Smaalen;F. K. Larsen
The crystal structure of Λ-(1,3,6,8,10,13,16,19-octaazabicyclo[6.6.6]eicosane)cobalt(III) trinitrate, [Co(C12H30N8)](NO3)3, consists of a sepulchrate moiety that serves as a macrobicyclic nitrogen cage for the Co3+ cation, which is six-coordinated by N atoms, and three nitrate anions. The Co–sepulchrate group lies on a threefold axis (site symmetry 32), as do two symmetry-related and ordered nitrate groups (site symmetry 3), with which it is connected via N—H⋯O hydrogen bonds [Co—N = 5.1452 (12) Å]. The third nitrate group is disordered as a result of symmetry requirements around the origin (site symmetry 32), and is further away from the Co–sepulchrate cage [Co—N = 6.3160 (8) Å]. The structure is described by applying orientational disorder over six equivalent orientations for the disordered nitrate group, which is considered as an ideal planar molecule of regular trigonal geometry with its molecular plane rotated out of the ab plane and the molecular centre of gravity slightly shifted away from the origin. This new model for disorder clearly improves a previous crystal structure determination.
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影响因子:
15
作者:
CREASER, II;GEUE, RJ;SPRINGBORG, J
通讯作者:
SPRINGBORG, J
DOI:
10.1107/s0108270193004263
发表时间:
1993
期刊:
Acta Crystallographica Section C-crystal Structure Communications
影响因子:
--
作者:
A. Bacchi;F. Ferranti;G. Pelizzi
通讯作者:
G. Pelizzi
DOI:
10.1107/s0567740879011523
发表时间:
1979
期刊:
Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry
影响因子:
--
作者:
M. Mikami;M. Konno;Yoshihiko Saito
通讯作者:
Yoshihiko Saito
影响因子:
--
作者:
DUBICKI, L;FERGUSON, J;WILLIAMSON, B
通讯作者:
WILLIAMSON, B
DOI:
10.1107/s0108270196001412
发表时间:
1996
期刊:
Acta Crystallographica Section C-crystal Structure Communications
影响因子:
--
作者:
A. Bacchi;F. Ferranti;G. Pelizzi
通讯作者:
G. Pelizzi