Group 12 metal aryl selenolates. Crystal and molecular structure of [2-(Et2NCH2)C6H4]2Se2 and [2-(Me2NCH2)C6H4Se]2M (M = Zn, Cd)

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 2010 English Publisher:Elsevier BVJournal:Journal of Organometallic Chemistry, volume 695, pages 2,486-2,492 (issn: 0022-328X,

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Authors: Pöllnitz, Alpar; Rotar, Adina; Silvestru, Anca; Silvestru, Cristian; Kulcsar, Monika;

doi: 10.1016/j.jorganchem.2010.07.036

handle: 10261/52775

Group 12 metal aryl selenolates. Crystal and molecular structure of [2-(Et2NCH2)C6H4]2Se2 and [2-(Me2NCH2)C6H4Se]2M (M = Zn, Cd)

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Abstract

Diorganodiselenide [2-(Et2NCH2)C6H 4]2Se2 (1) was obtained by hydrolysis/oxidation of the corresponding [2-(Et2NCH2)C6H 4]SeLi derivative. The treatment of [2-(Et2NCH 2)C6H4]2Se2 with elemental sodium in THF resulted in [2-(Et2NCH2)C 6H4]SeNa (2). Reactions between alkali metal selenolates [2-(R2NCH2)C6H4]SeM′ (R = Me, Et; M′ = Li, Na) and MCl2 (M = Zn, Cd) in a 2:1 molar ratio resulted in the [2-(R2NCH2)C6H 4Se]2M species [R = Me, M = Zn (3), Cd (4); R = Et, M = Zn (5), Cd (6)]. The new compounds were characterized by multinuclear NMR ( 1H, 13C, 77Se, 113Cd) and mass spectrometry. The crystal and molecular structures of 1, 3 and 4 revealed monomeric species stabilized by N → Se (for 1) and N → M (for 3 and 4) intramolecular interactions. © 2010 Elsevier B.V. All rights reserved.

Financial support from National University Research Council and Ministry of Education and Research of Romania (Research Projects CEx 11-55/2006 and PNII-ID 2404/2008) is greatly appreciated.

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