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Solvent Effects and a Test of the Theory of Hypochromism
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8.Results of the calculation of the dipole‐quadrupole term for indicate that any multipole interactions higher than dipole‐dipole are negligible.
9.It was of some interest to determine the sensitivity of the hypochromism to the oscillator strength, of the 1800‐Å band because of the range of values obtained experimentally for this band in benzene (i.e., 0.7 to 1.2). Table III shows that the hypochromism of the 2600‐ and 2000‐Å bands are relatively insensitive to variation in the oscillator strength of the 1800‐Å band. The value of given by Piatt and Klevens for ethylbenzene is used for the remaining calculations.
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17.Further evidence that the local structure of isotactic polystyrene is preserved in solution is given by the splitting of the infrared band at 9.4 μ () seen in both the crystal and solution. We wish to thank the referee for bringing this reference to our attention.
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