Investigation of the GeO2-1,6-diaminohexane-water-pyridine-HF phase diagram leading to the discovery of two novel layered germanates with extra-large rings

DOI: 10.1021/ic1017505

Authors: Bing Guo (Nankai University) , Andrew Inge (Stockholm University) , Charlotte Bonneau (Stockholm University) , Junliang Sun (Stockholm University) , Kirsten Christensen (Diamond Light Source) , Zhong-Yong Yuan (Nankai University) , Xiaodong Zou (Stockholm University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Inorganic Chemistry , VOL 50 (1)

State: Published (Approved)
Published: November 2010
Diamond Proposal Number(s): 6447

Abstract: The systematic exploration of the phase diagram of the GeO2-1,6-diaminohexane-water-pyridine-HF system has allowed the identification of specific roles of the HF, H2O contents, and HF/H2O ratio in the formation of Ge7X19 (Ge7), Ge9X25?26 (Ge9), and Ge10X28 (Ge10) clusters (X = O, OH, F). This work has led to the discovery of two novel structures with extra-large 18-membered rings accommodating 1,6-diaminohexane (DAH): SU-63, |1.5H2DAH|[Ge7O14X3]·2H2O, a layered germanate constructed from Ge7 clusters with the Kagomé topology, and SU-64, |11H2DAH|[Ge9O18X4][Ge7O14X3]6·16H2O, a germanate built of two-dimensional slabs containing both Ge7 and Ge9 clusters (X = OH or F). We also put SU-64 in context with previously reported cluster germanate compounds with related topologies by means of a simple crystal deconstruction study.

Subject Areas: Chemistry


Instruments: I19-Small Molecule Single Crystal Diffraction

Added On: 22/12/2010 15:15

Discipline Tags:

Chemistry

Technical Tags:

Diffraction Single Crystal X-ray Diffraction (SXRD)