Deuterium isotope effects on the ultrafast solvent relaxation of formamide and N,N-dimethylformamide

Journal Article · Thu Sep 29 04:00:00 EDT 1994 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100090a003· OSTI ID:6922623

Chang, Y J; Castner, Jr, E W ^[1]

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1. Brookhaven National Lab., Upton, NY (United States)

We present the results of our study on the ultrafast solvent dynamics of the amides formamide (FA), N-dimethylformamide (DMF), and their deuterated analogs HCOND[sub 2] (d[sub 2]-FA) and DCON(CD[sub 3])[sub 2] (d[sub 7]-DMF) us femtosecond optical-heterodyne-detected Raman-induced Kerr effect spectroscopy (OHD-RIKES). As nearly transform-limited 50 fs optical pulses and the Fourier-transform relationship, we have studied liquid dynamics in the frequency range from 0.6 to 400 cm[sup [minus]1]. In comparison to the depolarized Rayle spectroscopy technique. OHD-RIKES is shown to provide more accurate and detailed information about low-frequency region that includes the rotational reorientation, librational and collision-induced dynamic. The effect of deuterium isotope substitution on the inertial as well as diffusive reorientational dynamics these amide liquids is discussed. 91 refs., 9 figs., 4 tabs.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6922623
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:39; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
661300 -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMIDES
CHEMICAL REACTIONS
COMPILED DATA
DATA
DEUTERIUM COMPOUNDS
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
FLUIDS
FORMAMIDE
FOURIER TRANSFORM SPECTROMETERS
HYDROGEN COMPOUNDS
INFORMATION
ISOTOPE EFFECTS
KERR EFFECT
LASER SPECTROSCOPY
LIQUIDS
MEASURING INSTRUMENTS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
RAMAN SPECTROSCOPY
RELAXATION
SOLVENTS
SPECTROMETERS
SPECTROSCOPY