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Updated: Jul 20, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
Published on: February 11, 2012
Hydrothermal synthesis and structural characterizations of two new germanates with a novel topological framework and
Yan Xu1, Liying Cheng, Wansheng You
1Institute of Chemistry for Functionalized Materials, College of Chemistry and Chemical Engineering, Liaoning Normal University, No. 850 Huanghe Road, Dalian 116029, P. R. China. yanxuweb@yahoo.com
Abstract:
Two new germanates, Ge7O12(OH)4 (C4N3H13)(0.5)(H2O)5 (1) and Ge7O12(OH)4(H2O)6 (2) have been synthesized under hydrothermal conditions and characterized by IR spectroscopy, powder XRD, TG, and single-crystal X-ray diffraction. Compound 1 crystallizes in cubic space group P3m (No. 215) with a = b = c = 7.7119(5) A, v = 458.65(5) A(3), z = 1. Compound 2: cubic, P3m, a = b = c = 7.7653(17) A, v = 457.48(17) A(3), z = 1. Both germanates keep the same topological novel inorganic framework, which is assembled from Ge4(OH)4 cubane and chiral intertwined Ge-O double helices.
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