Kristallstruktur, Schwingungsspektren und Normalkoordinatenanalyse von K2[IrCl5(NH3)]

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE（1997）

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摘要

The X-ray structure determination of K-2[IrCl5(NH3)] (orthorhombic, space group Pnma, a = 13.426(4), b = 10.015(2), c = 6.8717(7) Angstrom, Z = 4) revealed the C-s point symmetry of the complex anion [IrCl5(NH3)](2-) (Ir-Cl = 2.337-2.365, Ir-N = 2.067(10); N-H = 0.73-0.79 Angstrom). Using the molecular parameters the IR and Raman spectra are assigned by normal coordinate analysis. The valence force constants are f(d)(NH) = 5.88, f(d)(IrN) = 2.66, f(d)(IrCl)= 1.68 mdyn/Angstrom.

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关键词

pentachloromonoamminiridate(III),crystal structure,vibrational spectra,normal coordinate analysis

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