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Synthesis and Structure of a Novel Layered Zinc–Cobalt Phosphate, Zn(2−x)Cox(HPO4)3·C3N2H12, x≅0.05, with 12 Rings

✍ Scribed by Yunling Liu; Liyan Na; Guangshan Zhu; Feng-Shou Xiao; Wenqin Pang; Ruren Xu

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
191 KB
Volume
149
Category
Article
ISSN
0022-4596

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✦ Synopsis

A novel layered zinc+cobalt phosphate Zn (2؊x) Co x (HPO 4 ) 3 ' C 3 N 2 H 12 (x:0.05), has been solvothermally synthesized, and its structure determined at 293 K with a Siemens Smart 1000 CCD di4ractometer [monoclinic, P2 1 /c, a ‫؍‬ 8.632(2) A > , b ‫؍‬ 9.648(4) A > , c ‫؍‬ 17.077(6) A > , ‫؍‬ 93.63(2)3, V ‫؍‬ 1419.2(8) A > 3 , Z ‫؍‬ 4, R ‫؍‬ 0.0274, wR ‫؍‬ 0.0724, 2928 collected re6ections, 1628 observed re6ections with I > 2 (I)]. The structure consists of vertex-sharing MO 4 (M ‫؍‬ Zn, Co) tetrahedra, PO 3 (OH) tetrahedra, and double-protonated organic cations, which results in formation of undulating 4-ring chains and 12-ring sheets. A network of hydrogen bonds involving both layer-to-layer and layer-to-amine interactions holds the phosphate layer together.

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