Synthesis and Crystal Structure of K（2,2,2-crypt）2HP11

摘要

cqvip:[K(2,2,2-crypt)]2HP11 has been prepared from the reaction of K3P11 with the mixed ethylenediamine/2,2,2-crypt solution. The crystal structure was determined by singlecrystal X-ray diffraction. The crystal is of trigonal system, space group P 3c1 with a = 12.068(2), b = 12.068(2), c = 22.319(6) , V = 2815.0(10) 3, Dc = 1.384 g/cm3, C36H73K2N4O12P11, Mr = 1172.85, F(000) = 1232, μ = 0.536 mm–1, Z = 2, R = 0.0678 and wR = 0.2211 for 1763 observed reflections (I > 2σ(I)). In this compound, the P11 cluster has ideal 32-D3 symmetry, and the three-fold axis corresponds to the crystallographic c axis. The (HP11)2- anions are stable due to the completely sequestered alkali metal cations through only ion-ion interactions.