Jump to main content
Jump to site search

Issue 5, 2009
Previous Article Next Article

Microwave-assisted synthesis, crystal structure and properties of a disc-like heptanuclear Co(II) cluster and a heterometallic cubanic Co(II) cluster

Author affiliations

Abstract

The reaction of Co(ClO4)2·6H2O with a disodium 2-[(2-hydroxy-3-methoxy-enzylidene)-amino]-ethanesulfonic acid (Na2L) in a mixture solution (methanol : acetonitrile = 1 : 1 (v/v)) or an acetonitrile solution under microwave and controlled pressure/temperature, or solvothermal conditions leads to the formation of two completely different CoII complexes: heptanuclear cluster [Co7(immp)6(CH3O)6]·2ClO4 (1) (immp is 2-iminomethyl-6-methoxy-phenolic anion) and tetra-heteronuclear cubane cluster [NaCo3(L)3(CH3CN)3(OH)]2·CH3CN (2). The microwave-assisted reactions can improve the reaction rate and yield compared to simple solvothermal synthesis. The magnetic investigation shows that complexes 1 and 2 exhibit a ferromagnetic coupling between the CoII ions. AC susceptibilities of the two complexes reveal no frequency-dependent out-of-phase signals and the corresponding magnetic properties were discussed.

Graphical abstract: Microwave-assisted synthesis, crystal structure and properties of a disc-like heptanuclear Co(II) cluster and a heterometallic cubanic Co(II) cluster

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Sep 2008, accepted on 17 Dec 2008 and first published on 29 Jan 2009


Article type: Paper
DOI: 10.1039/B815675A
Citation: CrystEngComm, 2009,11, 865-872
  •   Request permissions

    Microwave-assisted synthesis, crystal structure and properties of a disc-like heptanuclear Co(II) cluster and a heterometallic cubanic Co(II) cluster

    S. Zhang, Y. Song, H. Liang and M. Zeng, CrystEngComm, 2009, 11, 865
    DOI: 10.1039/B815675A

Search articles by author

Spotlight

Advertisements