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Monohalogenobenzoylhydrazones. V. Spectral and Bonding Properties of Some Novel Antimony(III) Complexes of p‐chlorobenzoyl‐di‐(2‐pyridyl)ketohydrazone studied by experimental and quantum‐chemical methods
Author(s) -
Tossidis I. A.,
Bolos C. A.,
Katsoulos G. A.,
Sigalas M. P.,
Tsipis C. A.
Publication year - 1988
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19885670118
Subject(s) - chemistry , ligand (biochemistry) , cndo/2 , octahedron , antimony , bromide , iodide , quantum chemical , metal , crystallography , computational chemistry , inorganic chemistry , molecule , crystal structure , organic chemistry , biochemistry , receptor
Reactions of antimony(III) chloride, bromide, and iodide with p‐chlorobenzoylhydrazone of di‐(2‐pyridyl)ketone (DpClBHH) in methanolic solutions afford the complexes SbX 2 (DpClBH). The structures of the new compounds are discussed in relation to their spectroscopic properties. In these complexes the ligand behaved as terdentate, coordination occuring through the carbonyl and azomethine groups, as well as the nitrogen atom of the pyridyl group. Consequently, a distorted octahedral environment around the metal is proposed. Moreover, EHMO calculations have been used in the analysis of the bonding in the SbCl 2 (DpClBH) complex, as well as to interpret the electronic spectral data. In addition, CNDO/2 calculations performed on the aforesaid ligand have been used to throw light on the mode of attachment of the ligand to the metal ion by means of some quantum‐chemical indices related to the frontier MO's.