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New chelated complexes of bis‐β‐carboalkoxyethyltin(IV) dichloride with S ‐benzyldithiocarbazate Schiff bases
Author(s) -
Gopinathan Sarada,
Degaonkar M P,
Gopinathan C
Publication year - 1992
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590060109
Subject(s) - chemistry , salicylaldehyde , schiff base , denticity , medicinal chemistry , octahedron , yield (engineering) , chelation , base (topology) , tin , polymer chemistry , stereochemistry , metal , inorganic chemistry , crystallography , organic chemistry , crystal structure , mathematical analysis , materials science , mathematics , metallurgy
The Schiff bases [H 2 SBSaD], [H 2 SBVD] and [H 2 SBND], derived by the condensation of S ‐benzyldithiocarbazate and salicylaldehyde, 2‐hydroxy‐3‐methoxybenzaldehyde and 2‐hydroxy‐1‐naphthaldehyde respectively, react with diestertin dichlorides, R 2 SnCl 2 [R=CH 2 CH 2 CO 2 CH 3 , CH 2 CH 2 CO 2 C 2 H 5 or CH 2 CH 2 CO 2 C 4 H 9 ] in 1:1 molar proportion to yield chlorine‐substituted complexes of the type R 2 Sn(Schiff base), the base being tridentate. The complexes are characterized on the basis of their elemental analyses, IR and 1 H NMR spectral studies. The 13 C and 119 Sn NMR and the tin‐carbon coupling constant data reveal the structures of the complexes to be octahedral with trans ester grouping, and bidentate ester linkages. The pentacoordinated complex (CH 3 ) 2 Sn(SBSaD) was prepared by the reaction of dimethyltin oxide with H 2 SBSaD in equimolar proportions.