Stark hole-burning spectroscopy of cresylviolet perchlorate in amorphous hosts

Stark hole-burning spectroscopy is used to investigate the effective dipole moment change of cresylviolet perchlorate (CVP) in various glass and polym er hosts such as ethanol,methanol (EM), polyvinyl alcohol (PVA), poly (2-hy droxyethyl) methacrylate (PHEMA), polyvinylbutyral (PVB), and formamide, Th e strong correlation between effective dipole moment change of the guest mo lecule and the holeburning efficiencies of the host matrices illustrates th e sensitivity of the dipole moment change as a direct measure of guest-host interactions. Hole-burning is found to be more efficient as the dipole ind uced reaction field increases, This relationship is discussed in terms of t he unusual hole-burning mechanism suggested for this molecule. The effectiv e dipole moment change of cresylviolet perchlorate ranges from 0.14 to 0.59 Debye.