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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 9
BKCSDE 15(9)
September 20, 1994

Title	Ultrafast Investigation of Vibrational Relaxation and Solvent Coordination Following Photodissociation of Cr(CO)6
Author	Seuk-Beum Ko*, Soo-Chang Yu, J. B. Hopkins
Keywords
Abstract	Picosecond time-resolved resonance Raman spectroscopy has been used to study the photochemistry of Cr(CO)6 in cyclohexane following photoexcitation at 266 nm. Photodissociative loss of CO is found to occur within our pulse width of ≤5 ps by probing the 533 cm-1 vibrational mode of ground state Cr(CO)6. The subsequent dynamics after photodissociation are interpreted in terms of solvation, vibrational and electronic relaxations. The vibrational relaxation time of 100 ps and 83 ps are observed by monitoring ν=O and ν=l of the 381 cm-1 transient mode, respectively. No evidence was found for solvation and electronic relaxation occurring on a time scale of ≥5 ps.
Page	762 - 765
Full Text	PDF

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