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[Ge 9 O 14 (OH) 12 ](C 6 N 2 H 16 ) 2 ·H 2 O: A Novel Germanate with Ge−O Helical Chains Formed by Hydrothermal Synthesis that Can Separate trans and cis Isomers in Situ
Author(s) -
Xu Yan,
Fan Wei,
Elangovan S. P.,
Ogura Masaru,
Okubo Tatsuya
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200400566
Subject(s) - chemistry , monoclinic crystal system , crystallography , germanate , hydrothermal synthesis , crystal structure , x ray crystallography , hydrothermal circulation , diffraction , ion , physics , organic chemistry , optics , seismology , geology
A novel germanate [Ge 9 O 14 (OH) 12 ](C 6 N 2 H 16 ) 2 ·H 2 O ( 1 ; UTM‐4) has been synthesized under hydrothermal conditions and its structure characterized by X‐ray crystallography [ a = 9.293(2), b = 12.164(2), c = 14.564(3) Å, β = 94.96(3)°, V = 1640.1(6) Å 3 , Z = 2, monoclinic, space group P 2 1 / c ]. The structure consists of Ge−O layers of helical chains, which are linked by hydrogen bonds to form a soft, open framework that exhibits a selectivity for cis ‐1,4‐diaminocyclohexane during the synthesis. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)