Raman spectroscopy of mass -selected metal clusters.

Title: Raman spectroscopy of mass -selected metal clusters.
Identifier: AAI9986376
identifier: 9986376
Creator: Shen, Xiaole.
Contributor: Advisers: John R. Lombardi | Derek M. Lindsay
Date: 2000
Language: English
Publisher: City University of New York.
Subject: Chemistry, Physical | Chemistry, Analytical
Abstract: Absorption and Resonance Raman spectroscopy has been employed to interrogate mass-selected metal clusters in argon matrices. With the CCNY metal cluster deposition source, metal cluster cations (produced by bombardment) are mass selected using a velocity Wien Filter, and then codeposited with rare gas on a cold window in the presence of low energy electrons. Neutralized cluster samples are interrogated by absorption, excitation, fluorescence and Raman spectroscopy. Following previous work on transition metal clusters, we focused on the IIIB group and lanthanide dimers. Good quality Raman spectra of Y 2, La2, Ce2, Pr2, Nd2, Gd 2, Tb2, Lu2 are reported. At the same time, investigation on triatomic clusters resulted in reports on Rh3, Ta3, and Ru3. Electronic transitions have been assigned with little ambiguity as to spectral carrier. Vibrational parameters were obtained for the first time. These results provided bonding properties and structural information. They give us further understanding of bonding character.
Type: dissertation
Source: PQT Legacy CUNY.xlsx
degree: Ph.D.