Evidence for a photoinduced isonitrosyl isomer in ruthenium dinitrosyl compounds

Schaniel, Dominik; Casaretto, Nicolas; Bendeif, El-Eulmi; Woike, Theo; Gallien, Anna K. E.; Kluefers, Peter; Kutniewska, Sylwia E.; Kaminski, Radoslaw; Bouchez, Guillaume; Boukheddaden, Kamel and Pillet, Sebastien (2019): Evidence for a photoinduced isonitrosyl isomer in ruthenium dinitrosyl compounds. In: Crystengcomm, Vol. 21, No. 38: pp. 5804-5810

Abstract

Since the seminal characterisation of two photoinduced linkage isomers (PLIs) in crystals of sodium nitroprusside dihydrate Na-2[Fe(CN)(5)(NO)]center dot 2H(2)O by photocrystallography, this phenomenon has been described in a large variety of molecular mononitrosyl complexes. The two photoinduced metastable isomers consist of a kappa O, isonitrosyl, binding mode (MS1) and a kappa N-2,O, side-on, binding mode (MS2). We have recently detected by infrared spectroscopy various PLI states in dinitrosyl ruthenium complexes, for which only kappa N binding modes were characterised by photocrystallography. We provide here experimental evidence for a photoinduced isonitrosyl isomer in the [Ru(PCy3)(2)(NO)(2)Cl]BF4 (Cy = cyclohexyl) complex salt, the results being strongly supported by DFT calculations.

• Item Type: Journal article
• Faculties: Chemistry and Pharmacy > Department of Chemistry
• Subjects: 500 Science > 540 Chemistry
• ISSN: 1466-8033
• Language: English