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Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
Synthesis and crystal structure of NaCsB5O8(OH)·H2O
Mei-Jun Zou1, Xiao-Liang Zhou1, Jian-Wen Cheng1
1Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical Chemistry Zhejiang Normal University,Jinhua Zhejiang 321004 People's Republic of China.
Abstract:
The solvothermal reaction of H3BO3, Cs2CO3, NaBO2·4H2O, formic acid and ethanol led to a new mixed alkali metal borate, NaCsB5O8(OH)·H2O, sodium caesium penta-borate hydroxide monohydrate. Its crystal structure contains penta-borate [B5O10(OH)]6- building units, and displays a layered structure containing nine-membered rings. The layers extend parallel to the ab plane and are stacked along the c axis. Na+ and Cs+ cations are situated between the layers and bond to oxygen atoms with coordination numbers of 7 and 10, respectively. The water mol-ecule likewise occupies the inter-layer space and is hydrogen-bonded to the layers, both as a donor and an acceptor.
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