Two-dimensional metal-organic framework constructed from 4,4'-bipydine and 1,2,4-benzenetricarboxylate: Synthesis, structure and magnetic properties
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012 (China)
Two new copper coordination polymers generated from mixed organic ligands 4,4'-bipydine and 1,2,4-benzenetricarboxylate [Cu{sub 3}(1,2,4-BTC){sub 2}(4,4'-bipy)(H{sub 2}O){sub 4}] 1 and [Cu(1,2,4-HBTC)(4,4'-bipy)] 2 (1,2,4-BTC=1,2,4-benzenetricarboxylate) have been prepared hydrothermally and characterized by single crystal X-ray diffraction. Compound 1 crystallizes in the noncentrosymmetric space group Fdd2, with a=19.004(3)A, b=26.711(4)A, c=11.0770(15)A, V=5622.8(14)A{sup 3}, and Z=8. Its structure contains two different one-dimensional (1-D) chains for the Cu ions, namely [Cu{sub 2}(1,2,4-BTC){sub 2}]{sub n}{sup 2n-} and [Cu(4,4{sup '}-bipy)]{sub n}{sup 2n+}; the carboxylate of 1,2,4-BTC ligands links the two different 1-D chains into an interesting steplike neutral framework. Compound 2 crystallizes in the monoclinic space group P2{sub 1}/n, with a=9.9806(8), b=16.5512(16), c=11.3109(7)A, {beta}=99.375(5){sup o}, V=1843.5(3)A{sup 3}, Z=4. Its structure contains novel paddle-wheel clusters Cu{sub 2}(CO{sub 2}){sub 4}(4,4'-bipy){sub 2} as SBUs which are further linked by monoprotonated 1,2,4-BTC ligands into a 2-D neutral framework. The magnetic behaviors of both compounds have been studied.
- OSTI ID:
- 20784770
- Journal Information:
- Journal of Solid State Chemistry, Vol. 178, Issue 11; Other Information: DOI: 10.1016/j.jssc.2005.08.014; PII: S0022-4596(05)00378-6; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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