Acta Crystallographica Section B: Structural Science p. 773 - 779 (1997)
Update date:2022-08-05
Topics:
Lloyd, Michael A.
Brock, Carolyn Pratt
The structures of [MPh4][BPh4], M = P, As and Sb, crystallize in a superstructure (I4, Z′ = 1/2) of the P421 c, Z′ = 1/4, structure known for MPh4, M = C, Si, Ge, Sn and Pb. The arrangement of the ions is the same as for CaWO4 (scheelite; I41/a, Z′ = 1/4), which is typical of many other ionic XYO4 structures. Crystals of [MPh4][BPh4] turn a pinkish amber when exposed to UV light; ESR spectra confirm that free radicals are generated.
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