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Synthesis and characterization of di‐ n ‐butyltin(IV) complexes with 4′/2′‐nitrobiphenyl‐ 2 ‐carboxylic acids: X‐ray crystal structures of [{( n ‐C~4~H~9~)~2~Sn(OCOC~12~H~8~NO~2~−4′)}~2~O]~2~ and ( n ‐C~4~H~9~)~2~Sn{OCOC~12~H~8~NO~2~−4′}~2~ by Ramesh Kapoor; Anand Gupta; Pratibha Kapoor; Paloth Venugopalan is a Chemistry article available to read on EtoBox.

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## Reactions of di-n-butyltin(IV ) oxide with 4 /2 -nitrobiphenyl-2-carboxylic acids in 1 : 1 and 1 : 2 stoichiometry yield complexes [{(n-C 4 H 9 ) 2 Sn(OCOC 12 H 8 NO 2 -4 /2 )} 2 O] 2 (1 and 2) and (n-C 4 H 9 ) 2 Sn(OCOC 12 H 8 NO 2 -4 /2 ) 2 (3 and 4) respectively. These compounds were characterized by elemental analysis, IR and NMR ( 1 H, 13 C and 119 Sn) spectroscopy. The IR spectra of these compounds indicate the presence of anisobidentate carboxylate groups and non-linear C-Sn-C bonds. From the chemical shifts δ ( 119 Sn) and the coupling constants 1 J( 13 C, 119 Sn), the coordination number of the tin atom and the geometry of its coordination sphere have been suggested. [{(n-C 4 H 9 ) 2 Sn(OCOC 12 H 8 NO 2 -4 )} 2 O] 2 (1) exhibits a dimeric structure containing distannoxane units with two types of tin atom with essentially identical geometry. To a first approximation, the tin atoms appear to be pentacoordinated with distorted trigonal bipyramidal geometry. However, each type of tin atom is further subjected to a sixth weaker interaction and may be described as having a capped trigonal bipyramidal structure. The diffraction study of the complex (n-C 4 H 9 ) 2 Sn(OCOC 12 H

Who reads Synthesis and characterization of di‐ n ‐butyltin(IV) complexes with 4′/2′‐nitrobiphenyl‐ 2 ‐carboxylic acids: X‐ray crystal structures of [{( n ‐C~4~H~9~)~2~Sn(OCOC~12~H~8~NO~2~−4′)}~2~O]~2~ and ( n ‐C~4~H~9~)~2~Sn{OCOC~12~H~8~NO~2~−4′}~2~?

Author

Ramesh Kapoor; Anand Gupta; Pratibha Kapoor; Paloth Venugopalan

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0268-2605)

Published

2003

Language

EN

Field

Chemistry (Physical Sciences)