新型钼（VI）柱撑层状乙二膦酸盐A2[Mo2O5(O3PCH2CH2PO3)]（A = NH4、Tl、Cs、Rb）和K(H3O)[Mo2O5(O3PCH2CH2PO3)]的水热合成与表征

Hydrothermal synthesis and characterization of new pillared layered ethylenediphosphonates of molybdenum(VI), A2[Mo2O5(O3PCH2CH2PO3)] (A = NH4, Tl, Cs, Rb) and K(H3O)[Mo2O5(O3PCH2CH2PO3)].

作者信息

Rao K Prabhakara, Vidyavathy Balraj Vidyavathy, Minimol M P, Vidyasagar K

机构信息

Department of Chemistry, Indian Institute of Technology Madras, Chennai--600 036, India.

出版信息

Inorg Chem. 2004 Jul 26;43(15):4610-4. doi: 10.1021/ic035081p.

DOI:10.1021/ic035081p

PMID:15257589

Abstract

New ethylenediphosphonates of molybdenum, A[Mo2O5(O3PCH2CH2PO3)] (A = NH4 (1), Tl (2), Cs (3), Rb (4)), and K(H3O)[Mo2O5(O3PCH2CH2PO3)] (5), have been synthesized by a hydrothermal method and structurally characterized by X-ray diffraction, spectroscopic, and thermal studies. These compounds consist of pillared anionic layers [Mo2O5(O3PCH2CH2PO3)]2-, with A+, K+, and H3O+ ions in the interlayer region as well as in the cavities within the anionic layers. Single-crystal X-ray structures of compounds 1 and 5 have been determined. They crystallize in the orthorhombic space group Cmca with Z = 8 and have the following unit cell parameters. For 1, a = 25.60(1), b = 10.016(4), and c = 9.635(3) angstroms and for 5, a = 25.63(1), b = 10.007(2), and c = 9.512(1) angstroms.

摘要

新型钼的乙二膦酸盐A[Mo₂O₅(O₃PCH₂CH₂PO₃)]（A = NH₄ (1)、Tl (2)、Cs (3)、Rb (4)）以及K(H₃O)[Mo₂O₅(O₃PCH₂CH₂PO₃)] (5) 已通过水热法合成，并通过X射线衍射、光谱和热分析进行了结构表征。这些化合物由支柱状阴离子层[Mo₂O₅(O₃PCH₂CH₂PO₃)]²⁻组成，层间区域以及阴离子层内的空穴中存在A⁺、K⁺和H₃O⁺离子。已确定化合物1和5的单晶X射线结构。它们在正交空间群Cmca中结晶，Z = 8，具有以下晶胞参数。对于1，a = 25.60(1)、b = 10.016(4)、c = 9.635(3)埃；对于5，a = 25.63(1)、b = 10.007(2)以及c = 9.512(1)埃。