title: A three-dimensional open-framework germanate containing four-, five- and six-coordinated germanium
abstract: A new three-dimensional open-framework germanate, namely ethylenediamine bis(ethylenediammonium) tetrahydroxooctadecaoxononagermanate, (C(2)H(8)N(2))(C(2)H(10)N(2))(2)[Ge(9)O(18)(OH)(4)], has been synthesized hydrothermally and its structure determined by single-crystal X-ray diffraction. The framework is built of [Ge(9)O(22)(OH)(4)] units formed by four-, five- and six-oxygen-coordinated germanium and templated by ethylenediamine. Three types of intersecting channels are formed in the framework, one by eight-membered rings running along the b axis and the other two by ten-membered rings running parallel to the a and c axes, respectively.
authors.affiliation: Structural Chemistry, Stockholm University, S-106 91 Stockholm, Sweden.
authors.initials: K
authors.lastname: Sun
authors.initials: MS
authors.lastname: Dadachov
authors.initials: T
authors.lastname: Conradsson
authors.initials: X
authors.lastname: Zou