Cadmium(II) and cobalt(II) complexes generated from benzimidazole-5-carboxylate: Self-assembly by hydrogen bonding and {pi}-{pi} interactions
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 (China)
Self-assembly of L{sup -} (HL=benzimidazole-5-carboxylic acid) with Cd(II) and Co(II), respectively, by layer-separating diffusion method at ambient temperature gives rise to two new supramolecular architectures [(CdL{sub 2}.H{sub 2}O).2CH{sub 3}OH]{sub n} (1) and {l_brace}[CoL{sub 2}(H{sub 2}O){sub 2}].2H{sub 2}O{r_brace}{sub n} (2), both of which are stabilized by the hydrogen bonding interactions and the intermolecular {pi}-{pi} interactions. 1 crystallizes in the triclinic system, space group P-1, with cell parameters M=516.78, a=9.084(2)A, b=10.063(10)A, c=11.533(8)A, {alpha}=90.21(11){sup o}, {beta}=99.48(6){sup o}, {gamma}=98.34(9){sup o}, V=1028.4(12)A{sup 3}, Z=2, R{sub 1}[I>2{sigma}(I)]=0.0257, wR{sub 2}[I>2{sigma}(I)]=0.0719. 2 crystallizes in the monoclinic system, space group C2/c, with cell parameters M=453.27, a=16.119(2)A, b=8.8952(13)A, c=14.195(2)A, {beta}=118.507(2){sup o}, V=1788.5(4)A{sup 3}, Z=4, R{sub 1}[I>2{sigma}(I)]=0.0802, wR{sub 2}[I>2{sigma}(I)]=0.1515. Complex 1 displays a remarkable three-dimensional (3-D) structure with unusual channels generated from the interlayer voids. Complex 2 exhibits the 3-D structure consisting of 1-D zigzag chains. The thermal and fluorescence properties associated with their crystal structures have been measured, and complex 1 displays intense blue emission in the solid state.
- OSTI ID:
- 20729031
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 7 Vol. 178; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two novel 3-D bismuth oxalates with organic amines protruding in channels
A novel organically templated three-dimensional open framework vanadium tellurite: (NH{sub 3}CH{sub 2}CH{sub 2}NH{sub 3}){sub 2}V{sub 2}Te{sub 6}O{sub 18}