Chemistry of Ruthenium Hydridonitrosyl Complexes Containing Chelating Triphosphines III-Structure and Fluxional Mechanism of fac-RuH(NO)(ttp)

fac-RuH(NO)(ttp) is fluxional in the range between 180 K and 303 K. The structures involved in this fluxional process are found to be a mixture of two square pyramids and a trigonal bipyramid from the low temperature NMR spectra and the line shape analysis using DNMR 3 program and the activation parameters of this process were determined by using the simulated data. The mechanism of this fluxional process is proposed to be a pathway known as Turnstile Rotation.

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