Synthesis and crystal structures of copper(II) diphosphonatoalkanes:: C4 and C5

被引:74
作者
Arnold, DI [1 ]
Ouyang, X [1 ]
Clearfield, A [1 ]
机构
[1] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA
关键词
D O I
10.1021/cm010651+
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Two copper alkylenediphosphonates, Cu-2[(O3PC4H8PO3)(H2O)].2H(2)O (1) and Cu-2[(O-3-PC5H10PO3)(H2O)(2)].2.8H(2)O (2), have been synthesized and their crystal structures solved from X-ray powder data. Compound 1 is monoclinic, C2/m, with a = 20.035(6), b = 6.6713(2), and c = 4.3966(1) Angstrom, beta = 91.379(1)degrees, and Z = 2. Compound 2 is orthorhombic, Pmmn, with a = 22.3773(2), b = 6.7633(1), and c = 4.3529(1) Angstrom, and Z = 2. Both structures consist of layers of CuO4(OH2)(2) octahedra in which the layers are cross-linked by the alkyl chains into three-dimensional lattices. This pillared arrangement creates tunnels running parallel to the c-axis direction containing water molecules. Dehydration of the compounds is irreversible, but in the hydrated state, ammonia readily replaces the water.
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页码:2020 / 2027
页数:8
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