Abstract
Solid state non-resonance Raman spectra of a series of tin(IV) meso-tetraphenylporphyrin complexes Sn(TPP)X2, and the free ligand H2TPP, have been collected using 1064 nm laser excited Fourier transform Raman spectroscopy. The application of this technique to strongly coloured and fluorescent compounds is thereby demonstrated. The axial ligands X- include a set of eight O-bound anions of widely differing basicity, and the four halides. The relationships between Raman band frequencies and the nature of the axial ligands are examined. The data are compared with previously published empirical correlations between Raman frequencies and geometrical parameters.
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