Synthesis, structure and magnetic study of a novel mixed-valent Co II 10Co III 4 shield constructed by mixed pyridine-alcoholate ligands

Yan Peng, Chong Bin Tian, Hua Bin Zhang, Zhi Hua Li, Ping Lin, Shao Wu Du

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

A novel tetradecanuclear mixed-valent cobalt cluster, formulated as [Co II 10Co III 4(OH) 2O 6(hmp) 10(pdm) 4(CH 3OH) 2]·5H 2O (1), was obtained using mixed ligands of 2-(hydroxymethyl)pyridine (hmpH) and 2,6-pyridinedimethanol (pdmH 2). The cobalt ions in 1 are connected by ten chelating hmp - ligands, four tris-chelating pdm 2- ligands and six μ 3-oxide/ hydroxide anions, forming a unique shield-like planar structure that is rarely observed for Co-based clusters. Compound 1 displays slight frequency dependence at static zero field below 4.5 K, suggesting that it might be a single molecule magnet (SMM). © The Royal Society of Chemistry 2012.
Original languageEnglish (US)
Pages (from-to)4740-4743
Number of pages4
JournalDalton Transactions
Volume41
Issue number16
DOIs
StatePublished - Apr 28 2012
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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