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Ga(2,2‘-bipy)(HPO4)(H2PO4):  First Layered Inorganic−Organic Hybrid Gallium Phosphate with a Neutral Framework

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posted on 26.01.2004, 00:00 authored by Zhi-En Lin, Jie Zhang, Yan-Qiong Sun, Guo-Yu Yang
A novel gallium phosphate, Ga(2,2‘-bipy)(HPO4)(H2PO4) (denoted FJ-12; FJ = Fujian Institute of Research on the Structure of Matter), which is the first example of layered inorganic−organic hybrid gallium phosphate with neutral framework, has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. This compound crystallizes in the monoclinic system, space group P21/c (No. 14), with a = 10.9443(9), b = 15.8253(13), and c = 8.4201(7) Å, β = 108.898(2)°, V = 1379.7(2) Å3, and Z = 4. The structure consists of HPO4 and H2PO4 tetrahedra and unusual GaO4N2 octahedra which are linked through their vertexes forming an undulated sheetlike structure with 4.12-net. The adjacent layers are stably packed together and exhibit interesting 3-D supramolecular arrays π−π interactions of the 2,2‘-bipy groups.

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