Solid state coordination chemistry of the copper(II)-terpyridine/ oxovanadium organophosphonate system: Hydrothermal syntheses, structural characterization and magnetic properties

Gundog Yucesan, Vladimir Golub, C. J. O'Connor, Jon Zubieta

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

The hydrothermal reactions of CuSO 4·5H 2O, Na 3VO 4, 2,2′:6′:2″-terpyridine (terpy), and the appropriate organophosphonate ligand yield a series of materials of the Cu(II)-terpy/oxovanadium organophosphonate family. The complexes exhibit distinct structures spanning one-, two- and three-dimensions and exhibiting diverse oxovanadium building blocks. Thus, [{Cu(terpy)}(V 2O 4)(O 3PPh)(HO 3PPh) 2] (1) is one-dimensional and constructed from binuclear units of corner-sharing V(v) square pyramids. While [{Cu(terpy)}VO(O 3PCH 2PO3)] (2), [{Cu(terPy)} 2(V 4O 10)(O 3PCH 2CH 2PO 3)] (3), and [{Cu(terPy)}(V 2O 4){O 3P(CH 2) 3PO 3}]·2.5H 2O (4-2.5H 2O) are similarly one-dimensional, the V/O structural components consist of isolated V(iv) square pyramids, tetranuclear V(v) units of three tetrahedra and one square pyramid in a corner-sharing arrangement, and isolated V(v) tetrahedra and square pyramids, respectively. The second propylenediphosphonate derivative, [{Cu(terpy)}(V 2O 4){O 3P(CH 2) 3PO 3}] (5) is three-dimensional and exhibits isolated V(v) tetrahedra as the vanadate component. The two-dimensional structure of [{Cu(terpy)(H 2O)}(V 3O 6){O 3P(CH 2) 4PO 3}] (6) is mixed valence with isolated V(iv) square pyramids and binuclear units of corner-sharing V(v) tetrahedra providing the V/O substructures.

Original languageEnglish (US)
Pages (from-to)2241-2251
Number of pages11
JournalDalton Transactions
Issue number13
DOIs
StatePublished - Jul 7 2005

ASJC Scopus subject areas

  • Inorganic Chemistry

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