CRYSTAL STRUCTURE AND THERMAL PROPERTIES OF (1,1,1,5,5,5-HEXAFLUOROPENTANOATO-4)·(DICARBONYL)IRIDIUM(I)
E. S. Vikulova1, I. Yu. Ilyin1, K. I. Karakovskaya1,2, D. A. Piryazev1,2, N.B. Morozova1
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk National Research State University, Novosibirsk, Russia
Keywords: иридий(I), ОІ-дикетонаты, карбонил, рентгеноструктурный анализ, термогравиметрия, iridium(I), ОІ-diketonates, carbonyl, X-ray crystallographic analysis, thermogravimetry
Abstract
The Ir(CO)2(hfac) complex (hfac = CF3C(O)CHC(O)CF3) has been studied by X-ray crystallographic analysis. The crystallographic data are as follows: space group Cmc 21, a = 8.680(4) Å, b = 18.951(1) Å, c = 6.491(3) Å, V = 1067.7(8) Å3, Z = 4, R = 0.0327. The structure is molecular; the coordination polyhedron of iridium adopts a distorted square geometry. The average Ir-O and Ir-C distances are 2.06(1) Å and 1.82(4) Å respectively. The OIrO and CIrC angles are nearly equal (88.7(5)° and 89(1)° respectively). The thermal properties of the complex have been studied by thermogravimetry.
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