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Title: Bis[2,6-bis(2-methoxyphenyl)pyridinium] di-μ-bromido-bis- [dibromidocuprate(II)]
Authors: Preeyanuch Sangtrirutnugul
Setsiri Haesuwannakij
Thanasat Sooksimuang
Samran Prabpai
Palangpon Kongsaeree
Mahidol University
Thailand National Metal and Materials Technology Center
Keywords: Chemistry;Materials Science;Physics and Astronomy
Issue Date: 1-Mar-2011
Citation: Acta Crystallographica Section E: Structure Reports Online. Vol.67, No.3 (2011)
Abstract: The title salt, (C 19 H 18 NO 2 ) 2 [Cu 2 Br 6 ], was obtained from an attempt to synthesize the copper(II) complex of 2,6-bis(2-methoxyphenyl)pyridine (L) from a reaction between CuBr 2 and one equivalent of L in CH 2 Cl 2 at room temperature. The resulting compound is the salt of the 2,6-bis(2-methoxyphenyl)pyridinium cation and 0.5 equivalents of a hexa-bromido-dicuprate(II) dianion. Both methoxy groups of the cationic pyridinium moiety are directed towards the N atom of the pyridine ring as a result of intra-molecular N - H⋯O hydrogen bonds. The centrosymmetric hexabromidodicuprate dianion possesses a distorted tetrahedral geometry at the copper ion. The Cu - Br bond lengths are 2.3385 (7) and 2.3304 (7) Å for the terminal bromides, whereas the bond length between the Cu atom and two bridging bromides is slightly longer [2.4451 (6) Å].
ISSN: 16005368
Appears in Collections:Scopus 2011-2015

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