A novel μ4-oxo bridged copper tetrahedron derived by self-assembly: First example of double helical bis(tridentate) coordination of a hexadentate amine phenol ligand

Manindranath Bera, Wing Tak Wong, Guillem Aromi, Joan Ribas, Debashis Ray

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56 Citations (Scopus)


In methanol, the reaction of Cu(CIO4)2·6H2O and the hexadentate amine phenol ligand (H2bahped) in the presence of triethylamine affords a tetranuclear copper(II) complex having the formula [Cu4(μ4-O)(bahped)2](ClO4)2. The X-ray structure of this complex shows a tetrahedral central {CuII4(μ4-O)} unit coordinated to two hexadentate bridging (via the central ethylenediamine part) ligands. The compound is the first example of a μ4-OXO tetranuclear copper(II) complex without any bridging ligand along the six tetrahedral edges. Variable-temperature magnetic data clearly show an St= 0 spin ground state for antiferromagnetic interactions between four2B2copper(II) ions in a dimer of dimers.
Original languageEnglish
Pages (from-to)4787-4789
Number of pages3
JournalInorganic Chemistry
Issue number16
Publication statusPublished - 9 Aug 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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