Solvent induced assembly of Co(II) coordination polymers with unprecedented water morphologies

Three new complexes, [Co2(oba)(dbca)(H2O)2]·5(H2O) (1) [Co2(oba)(dbca)(H2O)2]·DMF(H2O) (2) and [Co6(oba)6(pyr)8]·2.5H2O (3) (H2oba=4,4′-oxydibenzoic acid, H2dbca = diphenic acid, py = pyridine, DMF = N,N-dimethyl formamide) have been synthesized and characterized by infrared spectrum, thermal gravim...

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Bibliographic Details
Published in:Inorganic chemistry communications 2012-12, Vol.26, p.1-6
Main Authors: Wang, Dai-yin, Zou, Hua-hong, Hu, Fei-long, Li, Yong-jun
Format: Article
Language:English
Subjects:
Layer structure
Magnetic
Supramolecular network
Water cluster
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Summary:Three new complexes, [Co2(oba)(dbca)(H2O)2]·5(H2O) (1) [Co2(oba)(dbca)(H2O)2]·DMF(H2O) (2) and [Co6(oba)6(pyr)8]·2.5H2O (3) (H2oba=4,4′-oxydibenzoic acid, H2dbca = diphenic acid, py = pyridine, DMF = N,N-dimethyl formamide) have been synthesized and characterized by infrared spectrum, thermal gravimetric analysis, X-ray powder diffraction and X-ray single crystal diffraction. 3D network of 1 contains interesting water clusters between the layers. Complex 2 displays similar configuration of 1 except that the free DMF molecules occupy the channel which is formed by the host. Complex 3 shows the (2,5)-connection network by using the py as the solvent. The magnetic property of complex 1 is also presented. 1D water tapes were encaged in the channels in 1. [Display omitted] ► 1D unprecedented water clusters were observed in complex 1. ► DMF and water molecules filled in the channels of 2. ► (2,5)-connected network was observed in 3.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2012.09.020