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Solvothermal Synthesis and Structure of Ni(HP2O7)F·C2N2H10, a New Fluorinated Nickel Phosphate with a Chain Structure

✍ Scribed by Yunling Liu; Lirong Zhang; Zhan Shi; Hongming Yuan; Wenqin Pang

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
400 KB
Volume
158
Category
Article
ISSN
0022-4596

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✦ Synopsis

A new one-dimensional 6uorinated nickel phosphate Ni (HP 2 O 7 )F ' C 2 N 2 H 10 has been synthesized solvothermally using ethylenediamine as the template and its structure was determined by means of single-crystal X-ray di4raction. The title compound crystallizes in the monoclinic system, space group C/2c (No. 15) with M ‫؍‬ 314.78, a ‫؍‬ 12.658(3) A > , b ‫؍‬ 14.502 (3) A > , c ‫؍‬ 10.820(3) A > , ‫؍‬ 109.924(5)3, V ‫؍‬ 1867.3(8) A > 3 , Z ‫؍‬ 8, R ‫؍‬ 0.0318, and wR ‫؍‬ 0.0670. The structure consists of in5nite chains of cis, trans-corner-sharing NiO 4 F 2 octahedra with the adjacent octahedra being bridged by HP 2 O 7 groups, which are H-bonded with amine groups of the organic cations. The Ni+F bond lengths along the backbone of the chain are alternately short and long. The as-synthesized product is characterized by powder X-ray di4raction, IR spectroscopy, inductive couple plasma analysis, thermogravimetric analysis, and di4erential thermal analysis.

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