Jump to main content
Jump to site search

Issue 40, 2012
Previous Article Next Article

SU-75: a disordered Ge10 germanate with pcu topology

Author affiliations

Abstract

A disordered open-framework germanate, denoted as SU-75, was synthesized under hydrothermal conditions using diethylenetriamine (dien) or alternatively 1,4-diaminobutane (dab) as the structure directing agent (SDA). SU-75 crystallizes in a tetragonal space group I[4 with combining macron]2d (No. 122) with a = 18.145(3) Å and c = 41.701(9) Å. The three-dimensional (3D) framework is built from Ge10(O,OH)28 (Ge10) clusters that are connected following the pcu (primitive cubic) net topology. SU-75 has 10-, 11- and 12-ring channels along the a- and b-axes and channels with alternating 8-, 10-, 12-, 10-ring openings along the c-axis. The framework exhibits a serious disorder, resulted from two possible connectivities between the units of four Ge10 clusters (4Ge10 unit). The chemical formula of SU-75 is |(H2SDA)2(H2O)n|[Ge10O21(OH)2] (SDA = dien or dab, n = 5–6), determined by combining single crystal synchrotron X-ray diffraction, thermogravimetric analysis (TGA) and CHN elemental analysis. A superoctahedron is introduced to simplify the description of the connectivity of the Ge10 clusters and to illustrate the disorder. This is also used to compare the structure of SU-75 with those of related Ge10 germanates.

Graphical abstract: SU-75: a disordered Ge10 germanate with pcu topology

Back to tab navigation

Supplementary files

Article information


Submitted
09 Apr 2012
Accepted
12 Jun 2012
First published
09 Jul 2012

Dalton Trans., 2012,41, 12358-12364
Article type
Paper

SU-75: a disordered Ge10 germanate with pcu topology

S. Huang, A. K. Inge, S. Yang, K. E. Christensen, X. Zou and J. Sun, Dalton Trans., 2012, 41, 12358 DOI: 10.1039/C2DT30767G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements