Vibrational Intensities. V. BrCl and ICl

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Abstract
The intensity coefficients, A1, of the fundamental vibrational bands of BrCl and ICl have been measured. From these, the derivatives p′ have been calculated. An upper limit has been set for the overtone intensity coefficients, A2, and the second derivatives p″. The values are: for BrCl, A1 = 105 cm/millimole, A2p′ = ±0.78 debye angstrom—1, |p″| < 10 debye angstrom—2; for ICl, A1 = 650 cm/millimole, A2p′ = ±2.1 debye angstrom—1, |p″| < 14 debye angstrom—2.