Hydrothermal synthesis and structural characterizations of two new germanates with a novel topological framework and unusual Ge4(OH)4 cubane.
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.
Xu
Yan
Y
Institute 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
Cheng
Liying
L
You
Wansheng
W
D001952:Bridged-Ring Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D018360:Crystallography, X-Ray; D005857:Germanium / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D010087:Oxides / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism; D013696:Temperature
D001952:Bridged-Ring Compounds; D010087:Oxides; D005857:Germanium