| Abstract: | Crystal Structure, Vibrational Spectra, and Normal Coordinate Analysis of (CH2py2)Ru(NO)FCl4] By treatment of Ru(NO)Cl5]2– with a BrF3 saturated frigen solution in dichloromethane the complex Ru(NO)FCl4]2– is formed, which can be separated from hydrolysis products by ion exchange chromatography on diethylaminoethyl cellulose. The X‐Ray structure determination on a single crystal of (CH2py2)Ru(NO)FCl4] · 1/2 (CH3)2CO (triclinic, space group P1, a = 9.416(2), b = 14.919(6), c = 15.127(3) Å, α = 61.86(3), β = 80.31(2), γ = 72.49(3)°, Z = 4) reveals, that the fluorine atom is trans positioned to the nitrosyl group. The low temperature IR and Raman spectra have been recorded of (n‐Bu4N)2Ru(NO)FCl4] and are assigned by normal coordinate analysis. A good agreement between observed and calculated frequencies is achieved. The valence force constants are fd(NO) = 13.92, fd(RuN) = 5.16, fd(RuF) = 3.19 and fd(RuCl) = 1.45 mdyn/Å. The 19F NMR spectra exhibits one singlet at –144.6 ppm. |
