Potassium gallium hydrogenphosphate fluoride, K2Ga[H(HPO4)(2)]F-2

作者：Filaretov Andrey^*; Schenk Kurt J; Rusakov Dmitriy; Chapuis Gervais

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2007, 63: I54-I56.

DOI：10.1107/S0108270107025437

Hydrothermally synthesized dipotassium gallium {hydrogen bis[hydrogenphosphate(V)]} difluoride, K2Ga[H(HPO4)(2)]F-2, is isotypic with K2Fe[H(HPO4)(2)]F-2. The main features of the structure are ([Ga{H(HPO4)(2)}F-2](2-))(n) columns consisting of centrosymmetric Ga(F2O4) octahedra [average Ga-O = 1.966 (3) angstrom and Ga-F = 1.9076 (6) angstrom] stacked above two HPO4 tetrahedra [average P-O = 1.54 (2) angstrom] sharing two O-atom vertices. The charge-balancing seven-coordinate K+ cations [average K-O,F = 2.76 (2) angstrom] lie in the intercolumn space, stabilizing a three-dimensional structure. Strong [O center dot center dot center dot O = 2.4184 (11) angstrom] and medium [O center dot center dot center dot F = 2.6151 (10) angstrom] hydrogen bonds further reinforce the connections between adjacent columns.

• 出版日期2007-7