Gt. Palomino et al., Evidence of very strong [2x nu(NO)] overtones when adsorbing NO in Cu-I,Cu-II-exchanged Y zeolites, PCCP PHYS C, 1(8), 1999, pp. 2033-2035
In this communication the first vibrational results obtained in "transmissi
on" mode, concerning NO/Cu-Y systems, containing Cu-I and Cu-II ions, are p
resented. The IR spectra of these systems are characterized by strong and w
ell defined IR peaks, both in the v(NO) and 2 x v(NO) stretching regions. P
lausible physical reasons justifying the unusual and astonishing high inten
sity of the peaks in the 2 x v(NO) overtone region are discussed.