Abstract
XRD is used to determine the structure of Cp′Ir(cod) at a temperature of 150(2) K. Crystallographic data for C14H19Ir are: a = 10.8272(5) A, b = 9.7746(4) A, c = 10.9180(5) A, β = 97.3310(10)°, monoclinic symmetry, space group P21/n, V = 1146.02(9) A3, Z = 4, dcalc= 2.199 g/cm3, R = 0.0246. The structure is molecular, built of neutral molecules. The metal atom coordinates carbon atoms of two cyclic ligands: 5-methylcyclopentadienyl-ion (Cp′) and 1,5-cyclooctadiene (cod). Five Ir-CCp′ distances lie in the range of 2.21–2.28 A; four Ir-Ccod distances differ insignificantly, and their average value is 2.114(13) A. The C11C12C13C14C15 and C1C2C5C6 planes of ligand fragments are almost parallel, and the angle between normals is 1.9°. In the crystal, molecules are bonded only by van der Waals interactions; in the structure, the eight shortest Ir...Ir distances are in the range of 5.608–7.257 A.
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