Isonitrosyl structure

NIS measurements (at 77 K) were also performed on a GNP single crystal (c-cut) (a) after the sample was illuminated with blue light (450 nm) at 50 K to populate metastable molecular states and (b) after warming up the illuminated crystal to 250 K at which the metastable states decay to the groundstate [94]. Comparison of measured and simulated (DFT) NIS spectra provided evidence for the isonitrosyl structure of the metastable state MSi [95] which was proposed earlier by Carducci et al. in their pioneering X-ray study [96]. 

Coppens and coworkers observed that laser irradiation of crystal samples of [Ru(bpy)2(N0)(N02)](PF6)2, at 90 K produces a double isonitrosyl-nitrito linkage isomer (Figure 15) and structurally identified the photogenerated hnkage isomers by a combination of X-ray crystallography and infrared spectroscopy (112). 

---