Hydrothermal Synthesis and Structure of Two New Mo(V)-Oxide Phosphates |
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| Authors: | Wenbin Yang Canzhong Lu Chuande Wu Shaofang Lu Dingming Wu Honghui Zhuang |
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| Institution: | (1) The State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian, 350002, People's Republic of China |
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| Abstract: | Two new members of Mo(V) phosphates were synthesized by hydrothermal methods. (enH2)(enH)NaMo12O24(OH)6(HPO4)2(H2PO4)6]·(en)4·20H2O(1)(en=H2 NCH2CH2NH2)HAD-H2]2HAD-H]2Zn3Mo12O24(OH)6(PO4)2(HPO4)6]·6H2O (2) (HAD=H2N(CH2)6NH2). Compound 1 crystallized in the space group P2(1)/n, a=15.93120(10) Å, b=15.8946(2) Å, c=17.0665(2) Å, V=4316.02(8),  =92.9060(10)°, Z=2. Compound 2 crystallized in the space group P(–1) with a=12.3726(3) Å, b=14.1948(3) Å, c=14.2310(4) Å,  =72.7100(10), =65.0230(10),  =69.5600(10)°, Z=2089.70(9) Å3, and Z=1. The structure of 1 consists of sandwich-shaped cluster anion Na{MoV
6O12(OH)3(HPO4)(H2PO4)3}2]3– ({Na(Mo
V
6
)
2
}) held together via intermolecular hydrogen-bonding contacts. For the compound 2, the sandwich-shaped clusters ZnMo6O12(OH)3(PO4)(HPO4)3]2 ({Zn(Mo
V
6
)
2} are linked by tetrahedrally-coordinated zinc into layers. Organic cations (H3N(CH2)6NH3]2+ and H3N(CH2)6NH2]+) are filled in the spaces between lamellas. The layers are held together by a hydrogen-bonded network, which involves the terminal phosphate P-OH groups, as well as organic cations and several waters of solvation. |
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| Keywords: | hydrothermal synthesis Mo(V)-oxide phosphates crystal structures hydrogen bonds |
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