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New crystal data of some solid transition‐metal complexes
Author(s) -
Abou Sekkina M. M.,
Salem T. M.,
ElShazly M. F.,
ElDissouky A.
Publication year - 1982
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889882012813
Subject(s) - crystallography , chemistry , acetamide , metal , transition metal , crystal structure , orthorhombic crystal system , crystal (programming language) , catalysis , organic chemistry , computer science , programming language , biochemistry
X‐ray powder data have been recorded for the 32 complexes: Cu L 2 X 2 [ L = 2‐(2‐pyridyl)acetamide (aapH), N ‐(2‐pyridyl)benzamide (bapH), N,N ′‐diacetyl‐2,6‐diaminopyridine (daapH), N,N ′‐dibenzoyl‐2,6‐diaminopyridine (dbapH); X = Cl, Br]; ML 2 X 2 ( M = Ni, Co; L = aapH, bapH, daapH, dbapH; X = Cl, Br, I). These data indicate that, in all cases: ( a ) complexes ML 2 X 2 ( M = Ni, Co; X = Cl, Br, I) are isomorphous; ( b ) complexes Cu L 2 X 2 ( X = Cl, Br) are isomorphous; ( c ) the Cu complexes are not isomorphous with the Ni and Co analogues (a difference ascribed to the Jahn–Teller effect); and ( d ) the three points ( a )–( c ) above are consistent with the available spectral and magnetic data.