Inorganic-Organic Hybrid Materials: Synthsis and Structure of a Reduced Ferrous Molybdophosphate, [(C_12H_8N_2)_3Fe~II]_2[Fe~(II)Mo_(12~V)(H_2PO_4)_6(PO_4)_2(OH)_6O_24], in the Presence of Fe(II)(1,10-Phenanthroline)_3 Complex

摘要

A new composite solid of the formula [(C_12H_8N_2)_3Fe~(II)]_2 [Fe~(II)Mo_(12)~(V)(H_2PO_4)_6(PO_4)_2(OH)_6O_24] 1 has been synthesized from a reaction mixture of MoO_3, Fe_2(C_2O_4)_3·6H_2O, C_2H_2O_4·2H_2O, 1,10-phenanthroline monohydrate, H_3PO_4, and H_2O under hydrothermal conditions. Crystal data: trigonal, space group, R-3, a = 16.874(6)A, c = 30.117(70A, V = 7426(4)A~3, R_1 = 0.0190, wR_2 = 0.0468, and S = 1.137. The structure of 1 is built up from FeMo_12(H_2PO_4)_6(PO_4)_2(OH)_6O_(24)~(4-) cluster anions connected to each other via hydrogen bonds. The arrangement of clusters is such that each cluster is surrounded by six equivalent anions resultin in three-dimensional cavities. The charge balancing cation, [(C_12H_8N_2)_3Fe]~(2+) complex, resides in the cavities and interact with the clusters through hydrogen bonds. There is also strong #pi#-#pi# interactions exist among the phenyl rings.