TY - JOUR
T1 - Vibrational relaxation of carbon monoxide in model heme compounds. 6-coordinate metalloporphyrins (M = Fe, Ru, OS)
AU - Hill, Jeffrey R.
AU - Dlott, Dana D.
AU - Fayer, M. D.
AU - Peterson, Kristen A.
AU - Rella, Chris W.
AU - Rosenblatt, Michael M.
AU - Suslick, Kenneth S
AU - Ziegler, Christopher J.
N1 - Funding Information:
This researchw as supportedb y the Office of Naval ResearchB, iology Division, throughc ontract NOOO14-95-1-025(9D DD and JRH). KSS, MMR, and CJZ wish to acknowledges upportfrom the NationalI nstituteso f Health Grant PHS 5RO1-HL-25934. The work at StanfordU niversityw as sup-portedb y the Medical Free ElectronL aserProgram, throught he Office of Naval Researchb, y contract NOOO14-91-C-0170M.D F acknowledgeasd ditional supportfr omthe NationalS cienceF oundationG rant DMR-90-22675. We thank Professor Alan Schwettmana nd ProfessorT odd Smith and their researchg roupsfor making it possiblet o perform thesee xperimenatst the StanfordF ree-electroLna ser Center.
PY - 1995/10/6
Y1 - 1995/10/6
N2 - Vibrational relaxation of carbon monoxide bound to a series of metalloporphyrin complexes (M-(coproporphyrinate-I tetraisopropyl ester)(CO)(pyridine); M = Fe, Ru, Os) was measured using picosecond infrared pump-probe experiments. The vibrational relaxation rates ((1-2.5) × 1010 s-1) increased with increasing mass of the metal ion. This effect is opposite that predicted by through-σ-bond models and is interpreted as arising from a through-π-bond coupling between the CO vibrational fundamental and porphyrin vibrations.
AB - Vibrational relaxation of carbon monoxide bound to a series of metalloporphyrin complexes (M-(coproporphyrinate-I tetraisopropyl ester)(CO)(pyridine); M = Fe, Ru, Os) was measured using picosecond infrared pump-probe experiments. The vibrational relaxation rates ((1-2.5) × 1010 s-1) increased with increasing mass of the metal ion. This effect is opposite that predicted by through-σ-bond models and is interpreted as arising from a through-π-bond coupling between the CO vibrational fundamental and porphyrin vibrations.
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U2 - 10.1016/0009-2614(95)00927-V
DO - 10.1016/0009-2614(95)00927-V
M3 - Article
AN - SCOPUS:0000682127
VL - 244
SP - 218
EP - 223
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 3-4
ER -