Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 12 (December 2007)

metal-organic compounds

hj3060 scheme

Acta Cryst. (2007). C63, m610-m614 [ doi:10.1107/S0108270107058519 ]

The dinuclear copper(II) complexes di--chlorido-bis{[N,N'-bis(4-chlorobenzyl)propane-1,2-diamine]chloridocopper(II)} and di--chlorido-bis{[N,N'-bis(3,4-methylenedioxybenzyl)propane-1,2-diamine]chloridocopper(II)}

S.-P. Yang, L.-J. Han, H.-T. Xia, D.-Q. Wang and Y.-F. Liu

Abstract: The two title dinuclear copper(II) complexes, [Cu₂Cl₄(C₁₇H₂₀Cl₂N₂)₂], (I), and [Cu₂Cl₄(C₁₉H₂₂N₂O₄)₂], (II), have similar coordination environments. In each complex, the asymmetric unit consists of one half-molecule and the two copper centres are bridged by a pair of Cl atoms, resulting in complexes with centrosymmetric structures containing Cu( [mu] -Cl)₂Cu parallelogram cores; the CuCu separations and Cu-Cl-Cu angles are 3.4285 (8) Å and 83.36 (3)°, respectively, for (I), and 3.565 (2) Å and 84.39 (7)° for (II). Each Cu atom is five-coordinated and the coordination geometry around the Cu atom is best described as a distorted square-pyramid with a [tau] value of 0.155 (3) for (I) and 0.092 (7) for (II). The apical Cu-Cl bond length is 2.852 (1) Å for (I) and 2.971 (2) Å for (II). The basal Cu-Cl and Cu-N average bonds lengths are 2.2673 (9) and 2.030 (2) Å, respectively, for (I), and 2.280 (2) and 2.038 (6) Å for (II). The molecules of (I) are linked by one C-HCl hydrogen bond into a complex [10 $\overline{1}$ ] sheet. The molecules of (II) are linked by one C-HCl and one N-HO hydrogen bond into a complex [100] sheet.

Formula: [Cu₂Cl₄(C₁₇H₂₀Cl₂N₂)₂] and [Cu₂Cl₄(C₁₉H₂₂N₂O₄)₂]


	Structure factor file (CIF format) (167.6 kbytes) [ doi:10.1107/S0108270107058519/hj3060Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (179.2 kbytes) [ doi:10.1107/S0108270107058519/hj3060IIsup3.hkl ] Contains datablock II

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