Infrared photodissociation of size-selected hydrazine clusters

✍ Scribed by U. Buck; X.J. Gu; M. Hobein; Ch. Lauenstein

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 562 KB
• Volume: 163
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(89)85167-x

✦ Synopsis

Photodissociation spectra of (N,H,), clusters from the dimer to the hexamer have been measured near the monomer frequencies of the v,~ mode at 937 cm-' (NH2 wag) and the u5 mode at 1098 cm-' (N-N stretch). The clusters are size-selected by the combination of a scattering process with a He beam and a quadrupole mass spectrometer. Large blue-shifts and broad linewidths characterize each cluster spectrum for the NH, wagging mode. The spectrum of cold dimers shows two peaks at 979 and 985 cm-'. The trimer spectrum is again split into two parts centered around 991 and 1025.2 cm-'. This trend is continued for n=4, 5, and 6 for which two peaks are observed around 1025 and 1048 cm-'.