Zinc, cadmium, and mercury complexes of a pyridyloxy-substituted cyclotriphosphazene: syntheses, structures, and fluxional behavior.
作者： Eric W. Ainscough , Andrew M. Brodie , Patrick J. B. Edwards , Geoffrey B. Jameson , Carl A. Otter
DOI: 10.1021/IC3013574
关键词: Geminal 、 Photochemistry 、 Crystallography 、 Phosphazene 、 Zinc 、 Molecule 、 Octahedral molecular geometry 、 Mercury (element) 、 Chemistry 、 Nitrogen 、 Cadmium
摘要: The synthesis and characterization of the fluxional, d10 cyclotriphosphazene complexes, [MLCl2] (M = Zn, Cd, Hg; L spiro-[(1,1′-biphenyl)-2,2′-dioxy]tetrakis(4-methyl-2-pyridyloxy)cyclotriphosphazene), are described. Single-crystal X-ray structures show that zinc complex has crystallized into two crystal forms: one as a tetrahedral species, with N2Cl2 donor set in which geminal pair pendant pyridyloxy nitrogen atoms binds to zinc, other trigonal-bipyramidal (tbp) one, an N3Cl2 set. third atom comes from phosphazene ring pyridyl ligands non-geminal. asymmetric unit cadmium contains three structurally distinct molecules. One molecule tbp structure similar complex. second six-coordinate, distorted octahedral geometry around center N4Cl2 set, coming arms. site conta...
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