Femtosecond photo-induced dissociation of the trihalide anions I 3 - and I2Br- in solution

• The photo-induced dissociation of the trihalide anions I3 - and I2Br- in methanol and acetonitrile solution is investigated using magic angle and polarization sensitive femtosecond transient absorption spectroscopy. The dissociation of I 2Br- and I3 - in acetonitrile are found to be very similar, except at the earliest times. A noticeable solvent dependence for the dissociation process is seen, e.g. in the degree of vibrational coherence and the rotational temperature of the I2 - fragment and in the amount of recombination.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

acetonitrile

anion

bromine derivative

halide

methanol

solvent

absorption spectroscopy

conference paper

dissociation

photochemistry

rotation

solution and solubility

temperature

vibration

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