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NH4[BGe3O8]: a new borogermanate framework made of infinite-chain building blocks.

Authors
  • Xiong, Ding-Bang
  • Chen, Hao-Hong
  • Li, Man-Rong
  • Yang, Xin-Xin
  • Zhao, Jing-Tai
Type
Published Article
Journal
Inorganic Chemistry
Publisher
American Chemical Society (ACS)
Publication Date
Nov 13, 2006
Volume
45
Issue
23
Pages
9301–9305
Identifiers
PMID: 17083229
Source
Medline
License
Unknown

Abstract

A new microporous borogermanate NH4[BGe3O8] has been synthesized by a molten boric acid flux method with "reagent" quantities of water in which GeO2, ethylenediamine, H2O, and H3BO3 (5:8:14:25) were heated together at 513 K for 4 days. The structure consists of {Ge6O18}n chains, further linked together via BO4 tetrahedra, forming a three-dimensional open framework with intersecting channel systems including one-dimensional 10-membered-ring (MR) channels. Interestingly, the infinite chains {Ge6O18}n as building blocks, built of alternating 4- and 6-MRs made of vertex-sharing GeO4 tetrahedra, construct the borogermanate framework. It is noteworthy that the high viscosity of the reactive medium and the quantity of water play important roles in the formation of the compound.

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