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Organotin Dyes: Synthesis and Structural Characterization of Dibutyltin and Dimethyltin Complexes with 2, 2′‐Dihydroxyazobenzene
Authors:Karl Eberhard Bessler  Jennifer Alves dos Santos  Victor Marcelo Deflon  Sebastio de Souza Lemos  Elke Niquet
Institution:Karl Eberhard Bessler,Jennifer Alves dos Santos,Victor Marcelo Deflon,Sebastião de Souza Lemos,Elke Niquet
Abstract:The preparation and structures of 2, 2′‐dihydroxyazobenzenato‐dibutyl‐tin Bu2SnL] and 2, 2′‐dihydroxyazobenzenato‐dimethyl‐tin Me2SnL] are described. The complexes were characterized by IR, NMR (1H, 13C, 119Sn) and UV/VIS spectra. The crystal structures were determined by X‐ray diffraction on single crystals. Bu2SnL]: monoclinic, space group P21/c, cell constants at 208 K: a = 860.73(5), b = 973, 51(18), c = 2340.0(3) pm, β = 93.615(11)°; R1 = 0.0546. Me2SnL]: orthorhombic, space group Pbcn, cell constants at 208 K: a = 1914.6(4), b = 1041.3(3), c = 1323.27(14) pm; R1 = 0.0529.
Keywords:Tin  Azo compounds  Coordination chemistry  Crystal structures  Tridentate ligands
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