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Organotin Dyes: Synthesis and Structural Characterization of Dibutyltin and Dimethyltin Complexes with 2, 2′‐Dihydroxyazobenzene
Author(s) -
Bessler Karl Eberhard,
dos Santos Jennifer Alves,
Deflon Victor Marcelo,
de Souza Lemos Sebastião,
Niquet Elke
Publication year - 2004
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.200400025
Subject(s) - monoclinic crystal system , orthorhombic crystal system , tin , chemistry , crystallography , stereochemistry , crystal structure , organic chemistry
The preparation and structures of 2, 2′‐dihydroxyazobenzenato‐dibutyl‐tin [Bu 2 SnL] and 2, 2′‐dihydroxyazobenzenato‐dimethyl‐tin [Me 2 SnL] are described. The complexes were characterized by IR, NMR ( 1 H, 13 C, 119 Sn) and UV/VIS spectra. The crystal structures were determined by X‐ray diffraction on single crystals. [Bu 2 SnL]: monoclinic, space group P2 1 /c, cell constants at 208 K: a = 860.73(5), b = 973, 51(18), c = 2340.0(3) pm, β = 93.615(11)°; R 1 = 0.0546. [Me 2 SnL]: orthorhombic, space group Pbcn, cell constants at 208 K: a = 1914.6(4), b = 1041.3(3), c = 1323.27(14) pm; R 1 = 0.0529.