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Tricyclische Cu II ‐ und Ni II ‐Chelate aus 2,2‐Bis‐(2‐hydroxyarylazo)‐biphenyl bzw. ‐diphenylsulfid
Author(s) -
Schetty G.,
Eder M.
Publication year - 1968
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.19680510809
Subject(s) - chemistry , biphenyl , chelation , steric effects , ion , polymer chemistry , medicinal chemistry , crystallography , stereochemistry , inorganic chemistry , organic chemistry
Tricyclic Cu II and Ni II chelates are produced from some 2,2′‐bis‐(2‐hydroxyaryl‐azo)‐biphenyls and ‐diphenyl sulphides. From their electron spectra it is concluded that in the Ni complexes of the azo‐biphenyl dyestuffs the central atom is coordinated in a different way (probably planar) from that in the corresponding Cu complexes. On the other hand, the valences of both metals in the azo‐diphenyl sulphide complexes seem to have the same steric arrangement. This arrangement is probably the same as that of the Cu II ion in the azobiphenyl dyestuffs, which could be tetrahedral.