crystal structure of [1,1′′′-bis(pyrimidin-2-yl)-4,4′:2′,2′′:4′′,4′′′-quaterpyridine-1,1′′′-diium-κ2n1′,n1′′]bis[2-(pyridin-2-yl)phenyl-κ2n,c1]iridium(iii) tris(hexafluoridophosphate) acetonitrile trisolvate

crystal structure of [1,1′′′-bis(pyrimidin-2-yl)-4,4′:2′,2′′:4′′,4′′′-quaterpyridine-1,1′′′-diium-κ2n1′,n1′′]bis[2-(pyridin-2-yl)phenyl-κ2n,c1]iridium(iii) tris(hexafluoridophosphate) acetonitrile trisolvate

;Benjamin J. Coe;Martyn K. Peers;James Raftery;Nigel S. Scrutton
Disability and rehabilitation 2015 Vol. 71 pp. 879-882
136
coe2015actacrystal

Abstract

In the title compound, [Ir(C11H8N)2(C28H20N8)](PF6)3·3CH3CN or [IrIII(ppy)2{(2-pym)2qpy2+}](PF6)3·3CH3CN (ppy = deprotonated 2-phenylpyridine, pym = pyrimidyl and qpy = 4,4′:2′,2′′:4′′,4′′′-quaterpyridyl), the Ir3+ cation is coordinated by two C atoms and four N atoms in a slightly distorted octahedral geometry. The asymmetric unit consists of one complex trication, three hexafluoridophosphate anions and three acetonitrile solvent molecules. The average Ir—C distance is 2.011 (14) Å, the average Ir—N(ppy) distance is 2.05 (6) Å and the average Ir—N(qpy) distance is longer at 2.132 (10) Å. The dihedral angles within the 4,4′-bipyridyl units are 31.5 (6) and 23.8 (7)°, while those between the 2-pym and attached pyridyl rings are rather smaller, at 11.7 (9) and 7.1 (9)°. The title compound was refined as a two-component inversion twin.

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