Abstract
A new complex salt trans-[CrF2(2,3,2-tet)][ZnCl3(H2O)] (2,3,2-tet is 1,4,8,11-tetraazaundecane), is prepared and its structure is determined by single crystal X-ray diffraction using synchrotron data at 100 K. The complex crystallizes in the space group P21/c of the monoclinic system with two mononuclear formula units in a cell with dimensions a = 5.6360(11) A, b = 17.120(3) A, c = 17.020(3) A, and β = 94.38(3)°. The chromium(III) ion is coordinated by four N atoms of the 2,3,2-tet ligand in the equatorial plane and two F atoms in a trans axial arrangement, displaying a slightly distorted octahedral geometry. The mean Cr–N(2,3,2-tet) and Cr–F bond distances are 2.0772(11) A and 1.8930(8) A, respectively. The crystal packing is stabilized by hydrogen bonding interactions between N–H groups of the 2,3,2-tet, O–H groups of the anion, the F atom, and the Cl atom of the anion. The FT-infrared, UV-visible spectra, and magnetic properties are also described.
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