This Communication describes the synthesis, crystal structure, and magnetic properties of a unique decanuclear copper complex of a tripodal adenine ligand built around a phenyl ring core. This complex comprises two mu(4)-oxo tetranuclear copper(II) units of the type Cu(4)OCl(6)L(4), bridged together by two pentacoordinated copper centers. Variable-temperature magnetic susceptibility data reveal the possibility of interaction between copper sites.
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