Techonological polymorphism of disperse amorphous silicas: Inelastic neutron scattering and computer modelling

The review gives a systematic account of the results of detailed studies of the vibrational spectra of a series of industrial amorphous highly disperse silicas (aerosil, silica gel, aerogel) with the aid of inelastic neutron scattering. The observed phenomenon of technological polymorphism and the results of the quantum-chemical modelling of the structures and vibrational spectra of the corresponding polymorphic modifications are discussed. The bibliography includes 113 references. © 1995 The Chemical Society.