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Synthesis and Characterization of a New Binucleating Tetraphosphine Ligand Based on 1,2-Phenylene Chelates and the Structures of Dinickel Tetrachloride Complexes of the Ligand

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journal contribution
posted on 06.10.2014, 00:00 by William J. Schreiter, Alexandre R. Monteil, Ekaterina Kalachnikova, Marc A. Peterson, Marshall D. Moulis, Ciera D. Gasery, Gregory T. McCandless, Frank R. Fronczek, George G. Stanley
A new binucleating tetraphosphine ligand, rac- and meso-(Et2P-1,2-C6H4)­P­(Ph)­CH2(Ph)­P­(1,2-C6H4PEt2) (et,ph-P4-Ph), has been synthesized. Separation and purification of the ligand diastereomers have been accomplished via column chromatography. Ni2Cl4(et,ph-P4-Ph) complexes of both diastereomers have been prepared in high yield and crystallographically characterized.