| Abstract: | Crystal Structure, Vibrational Spectra, and Normal Coordinate Analysis of ( n ‐Bu4N)2{Ru(NO)ClI2}2(μ‐I2)] · 2 I2 By treatment of (n‐Bu4N)2Ru(NO)I5] with (n‐Bu4N)Cl in dichloromethane (n‐Bu4N)2{Ru(NO)ClI2}2(μ‐I2)] is formed. The X‐Ray structure determination on a single crystal of (n‐Bu4N)2{Ru(NO)ClI2}2(μ‐I2)] · 2 I2 (monoclinic, space group I 2/a, a = 20.446(6), b = 11.482(8), c = 27.225(3) Å, β = 107.51(4)°, Z = 4) reveals a dinuclear iodine bridged structure, in which the chlorine atoms are trans positioned to the nitrosyl groups. The low temperature IR and Raman spectra have been recorded of (n‐Bu4N)2{Ru(NO)ClI2}2(μ‐I2)] · 2 I2 and are assigned by normal coordinate analysis. A good agreement between observed and calculated frequencies is achieved. The valence force constants are fd(NO) = 14.08, fd(RuN) = 5.58, fd(RuCl) = 1.52, fd(RuIt) = 0.90 and fd(RuIb) = 0.76 mdyn/Å. |
