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Versatile Coordination Modes of Triphospha-1,4-pentadiene-2,4-diamine

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journal contribution
posted on 06.03.2018, 20:05 by Anup K. Adhikari, Toni Grell, Peter Lönnecke, Evamarie Hey-Hawkins
1,3,5-Triphospha-1,4-pentadiene-2,4-diamine reacts with [M­(CO)4L] (M = Mo, L = nbd (norbornadiene); M = W, L = 2 CH3CN) to give the chelate complexes [M­(CO)4(PMes­{C­(NHCy)­PMes}2P1,P3)]. In contrast, an unusual intramolecular rearrangement occurred with [Cu­(CH3CN)4]­PF6 leading to the dimeric copper­(I) complex [Cu­(CNCy)­{PHMesP­MesC­(NHCy)­PMes-κP1,P3}]2(PF6)2. The mechanism of the rearrangement was supported by quantum-mechanical calculations. The transition-metal complexes were characterized by multinuclear NMR spectroscopy, mass spectrometry, infrared spectroscopy, and X-ray crystallography.

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