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New tin(IV) complexes with sterically hindered o-iminobenzoquinone ligand: Synthesis and structure

✍ Scribed by Alexandr V. Piskunov; Irina N. Mescheryakova; Georgii K. Fukin; Artyem S. Bogomyakov; Galina V. Romanenko; Vladimir K. Cherkasov; Gleb A. Abakumov

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 478 KB
Volume: 20
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.20555

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✦ Synopsis

Abstract

The reduction of 4,6‐di‐tert‐butyl‐N‐(2, 6‐di‐iso‐propylphenyl)‐o‐iminobenzoquinone (imQ) by tin amalgam in hexane solution leads to new six‐coordinated o‐iminoquinonato tin(IV) complex (iSQ)~2~SnAP (1) (where iSQ and AP are o‐iminosemiquinolate and dianion o‐amidophenolate, respectively). Variable temperature magnetic susceptibility measurements of 1 have shown that this complex possesses a weak ferromagnetic exchange between o‐iminosemiquinonate ligands. The oxidation of 1 with air oxygen produces new o‐iminoquinonolate tin(IV) derivatives [(iSQ)Sn(AP)]~2~O (2) and (iSQ)~2~Sn(OH)~2~ (3) containing μ‐oxo‐ and hydroxo‐ligands, respectively. The electronic structure of 1 was examined by DFT analysis. Complexes 1–3 have been investigated using single‐crystal X‐ray diffraction. © 2009 Wiley Periodicals, Inc. Heteroatom Chem 20:332–340, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20555

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