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Showing papers by "Antony J. Deeming published in 2012"

Synthesis, characterization and molecular structure of the complex [ Re2(CO)6(C14H11N4)(OH) ]2.

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María Cristina Goite1, Rubén Machado1, David Rivillo1, Ysaura De Sanctis1, Alejandro J. Arce1, Antony J. Deeming2, Reinaldo Atencio1, Alexander Briceño1, Lindora D’Ornelas3 •
Venezuelan Institute for Scientific Research1, University College London2, Central University of Venezuela3
01 Jan 2012
TL;DR: The tetranuclear rhenium derivative as discussed by the authors is a doubly zwitterion bearing 2,3-bis(2-pyridyl)-5-hydropyrazine anions.
Abstract: Reaction of the labile compound [Re2(CO)8(CH3CN)]2 with 2,3-bis(2-pyridyl)pyrazine refluxing in a wet tetrahydrofuran solution (3% H 2 O), gave the new compound [Re 2 (CO) 6 (C 14 H 11 N 4 )(OH)] 2 (1). The tetranuclear rhenium derivative 1 is a doubly zwitterion bearing 2,3-bis(2-pyridyl)-5-hydropyrazine anions. The X-ray crystal structure of 1 shows that the C 14 H 11 N 4 moieties are bonded in a chelating form to two rhenium centers through the N-atoms of pyridine and hydropirazine, where positive charges are supported by two metallic centers. The (Re 2 (CO) 6 (C 14 H 11 N 4 )) moieties are linked together by two OH ligands bridging the rhenium atoms.