Hydrothermal Synthesis and Structural Characterization of a Novel Open-framework Cobalt Phosphate, Co2(HPO4)2·H2O, with 1-D Helical Channels

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (1): 31.

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Hydrothermal Synthesis and Structural Characterization of a Novel Open-framework Cobalt Phosphate, Co₂(HPO₄)₂·H₂O, with 1-D Helical Channels

ZENG Qing-Xin¹, CHEN Lian-Shan³, LI Ya-Feng², YANG Guo-Yu¹, XU Ji-Qing²

1. State Key Laboratory of the Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;
2. College of Chemistry, Jilin University, Changchun 130023, China;
3. Jinzhou Medical College, Faculty of Basic Sciences, Jinzhou 121000, China

Received:2001-12-31 Online:2003-01-24 Published:2003-01-24

Abstract

Abstract: A new Co₂(HPO₄) 2·H₂O has been hydrothermally synthesized firstly. Single crystal X-ray analysis indicates that this compound crystallizes in a hexagonal system, space group P6 5 with a=1.048 31(15) nm, b=1.048 31(15) nm, c=1.496 3(3) nm, α=90°, β=90°, γ=120°, V= 1.424 1(4) nm³, μ=3.849 mm^-1, Z=6, F(000)=960, D_c=2.294 g/cm³, R=0.072 1, wR= 0.212 1, S=1.182, Δρ_max=1.671×10³ e·nm^-3 and (Δρ)_min=-1.210×10³ e·nm^-3. Co ₁(HPO₄)₂·H₂O is characterized by 1D 12-ring helical channels. Tetrahedral primary structure-building units of CoO₄ and PO₄ indicates the title compound has a zeotype framework.

Key words: Hydrothermal synthesis, Cobalt phosphate, Crystal structure

CLC Number:

O641

TrendMD:

ZENG Qing-Xin, CHEN Lian-Shan, LI Ya-Feng, YANG Guo-Yu, XU Ji-Qing . Hydrothermal Synthesis and Structural Characterization of a Novel Open-framework Cobalt Phosphate, Co₂(HPO₄)₂·H₂O, with 1-D Helical Channels[J]. Chem. J. Chinese Universities, 2003, 24(1): 31.

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Hydrothermal Synthesis and Structural Characterization of a Novel Open-framework Cobalt Phosphate, Co₂(HPO₄)₂·H₂O, with 1-D Helical Channels

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