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Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Synthesis and structures of hypervalent organoantimony and organobismuth chlorides containing asymmetric C,E,C-chelating (E = O, S) ligands

Language

English

Abstract

Two asymmetric tridentate C,E,C-chelating ligand precursors, 1-Br-2-[(2′-BrC6H4CH2E)CH 2]C10H6 (E = O (1), E = S (2), were prepared in good yield. Lithiation of the two precursors was achieved by a reaction with n-BuLi, and was followed by treatment with SbCl3 or BiCl3 in a 1:1 molar ratio to give four air-stable hypervalent organoantimony and organobismuth chlorides with an asymmetric C,E,C-chelating ligand (E = O, S), i.e. (C6H4CH2OCH2C 10H6)SbCl (3), (C6H4CH 2SCH2C10H6)SbCl (4), (C 6H4CH2OCH2C10H 6)BiCl (5) and (C6H4CH2SCH 2C10H6)BiCl (6). These compounds were characterized by NMR spectroscopy, elemental analysis and melting point determination. X-ray structure analysis of compounds 3-6 revealed that the donor atoms (O, S) are strongly coordinated to the metal atoms (Sb, Bi). Compounds 3-6 exhibit chirality and crystallize as racemic mixtures. © The Royal Society of Chemistry 2013.

Publication Date

2013

Source Publication Title

Dalton Transactions

Volume

42

Issue

26

Start Page

9476

End Page

9481

Publisher

Royal Society of Chemistry

ISSN (print)

14779226

ISSN (electronic)

14779234

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