In:
Zeitschrift für anorganische und allgemeine Chemie, Wiley, Vol. 640, No. 15 ( 2014-12), p. 3190-3196
Abstract:
The crystal structures of a series of pyridine coordination polymers [ M II Cl 2 (C 5 H 5 N) x ] n ( M = Ni, Cu), prepared via thermal decomposition are reported. [NiCl 2 (C 5 H 5 N) 4 ] ( 1 ) decomposes stepwise via [NiCl 2 (C 5 H 5 N) 2 ] n ( 2 ), [NiCl 2 (C 5 H 5 N)] n ( 3 ), and [NiCl 2 (C 5 H 5 N) 2/3 ] n ( 4 ), to NiCl 2 with increasing temperature. The thermal decomposition of [CuCl 2 (C 5 H 5 N) 2 ] n ( 5 ), progresses via two polymorphs of [CuCl 2 (C 5 H 5 N)] n ( 6a and 6b ), and [CuCl 2 (C 5 H 5 N) 2/3 ] n ( 7 ), to CuCl 2 . The compounds 3 , 4 , and 7 were prepared as pure phases. All crystal structures were determined by X‐ray powder diffraction. Notably, the crystal structures of the polymorphs 6a and 6b were determined from powder diffraction data of a mixture of both phases. Crystal structures of [ M II Cl 2 (C 5 H 5 N) x ] n with the same x , but different metal atoms (Ni, Cu) are homeotypic, compounds 4 and 7 are isotypic. Compounds with x = 1 ( 3 , 6a , 6b ) are composed of polymeric octahedra double chains 1 ∞ [ M Cl 3/3 Cl 2/2 (C 5 H 5 N)] and in case of x = 2/3 ( 4 , 7 ) of triple chains. The Jahn‐Teller distortion in the copper compounds was observable with the pair distribution function (PDF) analysis.
Type of Medium:
Online Resource
ISSN:
0044-2313
,
1521-3749
DOI:
10.1002/zaac.v640.15
DOI:
10.1002/zaac.201400505
Language:
English
Publisher:
Wiley
Publication Date:
2014
detail.hit.zdb_id:
201094-X
detail.hit.zdb_id:
1481139-X
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