Published December 2004 | Version v1
Journal article

Syntheses and crystal structures of two new organically templated borates

  • 1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)
  • 2. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China) and State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, Jiangsu 210093 (China)

Description

Two new organically templated borates, [H3N(C6H10)NH3][B4O5(OH)4] (1) and [H3N(C6H10)NH3][B5O8(OH)] (2) have been synthesized in the presence of trans-1,4-diaminocyclohexane acting as a structure-directing agent under mild solvothermal conditions. The structures were determined by single crystal X-ray diffraction and further characterized by FTIR, elemental analysis and thermogravimetric analysis. Compound 1 crystallizes in the monoclinic system, space group C2/c (No. 15), a=9.1325(3)A, b=11.4869(3)A, c=12.2756(5)A, β=105.258(6)o, V=1242.37(7)A3, Z=4. The structure contains supramolecular hydrogen-bonded network formed by isolated [B4O5(OH)4]2- polyanions. 2 is monoclinic, space group P2(1)/n (No. 14), a=6.5176(2)A, b=16.8861(5)A, c=11.1522(7)A, β=91.897(6)o, V=1226.70(9)A3, Z=4. The structure consists of layers of 3,9-membered boron rings constructed from pentaborate anion groups [B5O8(OH)]2-. The adjacent borate layers are further linked with each other by hydrogen bond to form a 3D supramolecular network. It is the first example of layered borates templated by an organic amine

Additional details

Identifiers

DOI
10.1016/j.jssc.2004.08.039;
PII
S0022-4596(04)00484-0;

Publishing Information

Journal Title
Journal of Solid State Chemistry
Journal Volume
177
Journal Issue
12
Journal Page Range
p. 4648-4654
ISSN
0022-4596
CODEN
JSSCBI

Optional Information

Copyright
Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.