Abstract
Aggregates of chloroform with nitrogen are studied by broad band Fourier transform infrared spectroscopy in neon, argon and nitrogen cryomatrices as well as supersonic jet expansions. The CH stretching vibration v1 shows spectral blue-shifting upon switching from isolated gas phase conditions to bulk nitrogen matrices, which can be reconstructed incrementally by stepwise cluster formation with an increasing amount of N2 both in supersonic expansions and neon or argon matrices. Vice versa, the CCl stretching vibration ν5 is incrementally downshifted. A small CH stretching upshift is observed in the chloroform homodimer as well.
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