Supramolecular Self-Assembly of 1D and 3D Heterometallic Coordination Polymers with Triruthenium Building Blocks |
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| Authors: | Sharon Lai-Fung Chan Song Gao Stephen Sin-Yin Chui Lam Shek Jie-Sheng Huang Chi-Ming Che |
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| Affiliation: | State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, and the HKU-CAS Joint, Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong (P.R. China), Fax: (+852)?2857-1586; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (P.R. China). |
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| Abstract: | Ru(3) (TSA)(6) (1; H(2) TSA=2-thiosalicylic acid), which bears six peripheral carboxylate groups and was isolated in the form [NEt(4) ](1.5) [Ru(3) (HTSA)(2) (TSA)(4) ](OAc)(0.5) ?3.5?H(2) O, serves as a building block for assembly of heterometallic coordination polymers. Treatment of 1 with [Fe(acac)(3) ] (acac=acetylacetonate) in EG/H(2) O (EG=ethylene glycol) afforded 1D Ru(3) -Fe coordination polymer 2 by means of the connection of the building block 1 through iron centers. Treatment of 1 with MnCl(2) in EG resulted in the formation of 1D Ru(3) -Mn(3) coordination polymer 3, which features self-assembled polynuclear linking units Mn(3) (OCH(2) CH(2) O)(3) , each of which contains a planar Mn(3) O(3) ring. By treating 1 with Gd(NO(3) )(3) and NaHCO(3) in EG, a 3D Ru(3) -Gd(6) coordination polymer 4 was obtained; this 3D coordination polymer features unprecedented Gd(6) (μ(3) -CO(3) )(4) units. The magnetic properties of 1-4, along with DFT calculations on the electronic structure of 1, are also described. |
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