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Influence of the Solvent on the Formation of New Tin(II) Methoxides Containing Thienyl Substituents: Crystal Structure and NMR Investigations
Author(s) -
Veith Michael,
Belot Céline,
Huch Volker,
Zimmer Michael
Publication year - 2009
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.200900023
Subject(s) - toluene , chemistry , tin , tetrahydrofuran , crystal structure , monomer , molecule , ligand (biochemistry) , nmr spectra database , solvent , crystallography , proton nmr , molar ratio , thiophene , stereochemistry , medicinal chemistry , spectral line , organic chemistry , catalysis , polymer , biochemistry , physics , receptor , astronomy
The synthesis, structural characterization, and NMR studies of new tin(II) alkoxides with thiophene‐based substituents are presented. The reaction of ligand HO–C(C 4 H 3 S) 3 ( 1 ) with bis(hexamethyldisilazyl)tin {Sn[N(SiMe 3 ) 2 ] 2 } in the ratio 2:1 in toluene yields the dinuclear compound {Sn[OC(C 4 H 3 S) 3 ] 2 } 2 ·2 toluene ( 2 ). The same reaction in tetrahydrofuran allows the isolation of two compounds: a dinuclear {Sn[OC(C 4 H 3 S) 3 ] 2 } 2 ·2 thf ( 3 ) and a mononuclear Sn[OC(C 4 H 3 S) 3 ] 2 (thf) ( 4 ) molecule. The molecular structures of these tin(II) methoxides containing thienyl substituents 2 – 4 were investigated by single‐crystal X‐ray crystallography. The NMR spectra of solutions of {Sn[OC(C 4 H 3 S) 3 ] 2 } 2 ·2 toluene ( 2 ) or {Sn[OC(C 4 H 3 S) 3 ] 2 } 2 ·2 thf ( 3 ) and Sn[OC(C 4 H 3 S) 3 ] 2 (thf) ( 4 ) are almost identical, showing only variations of the molar ratio of the dimeric and monomeric compounds.