Photochemistry of the group VI hexacarbonyls in low temperature matrices. Part I. The pentacarbonyls of chromium, molybdenum, and tungsten

IR spectra and vibrational dephasing of the CO stretching mode in W(CO)6 doped cryogenic matrices

“…This doublet structure was reported before. For instance, a detailed analysis of the doublet structure in argon and of the photochemical changes induced under photo-excitation with UV light can be found in literature [12][13][14]. The question about the origin of this structure is not completely clarified and still puzzling, this structure being probably induced by different local surroundings of the guest.…”

Photoreactions of chromium hexacarbonyl and chromium tetranitrosyl in frozen gas matrices. Infrared spectral evidence for tricarbonyldinitrosylchromium

“…Ferrioxalate was used as a primary actinometric reference. 16 The light was frequently tested with C O ( N H~)~B~* ' . '~ Quantum yields were obtained using already reported proced~res.2~'~ Solutions used for such determinations absorbed more than 99.9% of the incident light (optical density 2 3 at the wavelength of excitation).…”

Photolysis of pentacarbonyl(selenocarbonyl)chromium(0), Cr(CO)5(CSe), in an Argon matrix at 20 K

“…Ib). These bands are nor due to either Cr(CO), [2] or Cr(CO), [14]. They may possibly be bands associated with other isomeric forms of Cr(CO),(CSe) but we cannot say anything further at this stage.…”