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Die sterische Anordnung der 1:2‐Metallkomplexfarbstoffe im Lichte der geometrischen Gegebenheiten
Author(s) -
Schetty G.
Publication year - 1963
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19630460406
Subject(s) - chemistry , octahedron , metal , atom (system on chip) , crystallography , stereochemistry , crystal structure , organic chemistry , computer science , embedded system
Previous investigations of the 1:2‐Cr (and ‐Co) complexes have lead to the conclusion that the azo (and azomethine) dyestuffs which form 56‐rings with the metal atom are arranged perpendicularly to each other (DREW‐PFITZNER disposition). On the other hand those dyestuffs which form 6–6‐rings with the metal atom coordinate in sandwiches, thus making the formation of stereoisomeric 1 : 2‐complexes possible. The critical atomic distances and angles have been calculated and compared with the theoretical values obtained from the coordination octahedron, and found to be in good agreement with the experimental results.