Metal or Csl Substrates for the Matrix

The (IR) spectrometer is separated from the matrix chamber by a rotatable disk that contains three windows, CaFj, Csl, and high-density polyethylene, which can be chosen according to the desired spectral region. Raman and luminescence spectra can be recorded by a T64000 Raman spectrometer (Horiba Jobin Yvon). 

Formation and Characterization of Metal Atom Dimers and Clusters 

Resonance Raman spectra were ako obtained for matrix-isolated T12 [56, 57]. In this case, it was possible to measure signals from the fundamental and seven overtones. Again, the isotopic pattern clearly proved that all signals belonged to Ti2- The spectra recorded in different noble gas matrixes indicated the formation of a complex between Tij and Xe, and also a weak dependence of the Ti—Ti force constant on the matrix host. In an Ar matrix, a force constant of 233 N m was derived [57]. The dissociation energy was estimated with the aid of a formalism introduced by Le Roy, Bernstein, and Lam [58], and on the assumption of dominating quadrupole—quadrupole interactions near the dissociation limit. A value of 114kJ mol resulted [57]. 

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