Ecce Homo

Grodzins, Morton, and Eugene Rabinowitch. 1963. The Atomic Age. Basic Books. Grosz, George. 1923. Ecce Homo. Brussel Brussel. 

The last statement is proven (using the same theoretical concepts) when the Raman spectra of PHTh (or POTh) in the solid and solution phases are compared (fig.17). In agreement with the electronic spectra of the same samples, in solution the energy gap is larger because the molecule is distorted in a structure which we label as 20 (with the torsional angle 0 yet unknown) while in the solid the HOMO-LUMO transition is red shifted since the systems approaches coplanarity in a 2 structure with smaller. The observed Raman frequency and intensity dispersion is the following for the solid 1515, 1448 and 1380 cm , for the solution 1517, 1475 cm" and (too weak ), in agreement with the predictions by ECC theory. 

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