Abstract
The structure of the hexanuclear copper(II) β-diketonate complex with gfa (hexafluoroacetylacetone) and dpm (dipivalylmethanate) ligands was studied by low-temperature (T = 100 K) X-ray diffraction. Crystal data for Cu6(gfa)4(dpm)4(OH)4 [C64H84Cu6F24O20]: a = 28.2364(7) A, b = 12.8072(3) A, c = 24.7199(7) A, β= 115.900(1)°, V = 8041.5(4) A3, space group C2/m, Z = 4, d calc 1.661 g/cm3. The coordination polyhedra of the copper atoms — squares and octahedra — are formed by the oxygen atoms of the gfa and dpm ligands and groups. In all cases, the Cu-O distances vary from 1.89 A to 2.13 A. The complexes follow the sites of the rhombohedral sublattice with the parameters a c ≈ 14.4 A and a c ≈ 61.5°.
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