Vibrational relaxation of carbon monoxide in model heme compounds. 6-coordinate metalloporphyrins (M = Fe, Ru, OS)

Jeffrey R. Hill; Dana D. Dlott; M. D. Fayer; Kristen A. Peterson; Chris W. Rella; Michael M. Rosenblatt; Kenneth S Suslick; Christopher J. Ziegler

doi:10.1016/0009-2614(95)00927-V

Vibrational relaxation of carbon monoxide in model heme compounds. 6-coordinate metalloporphyrins (M = Fe, Ru, OS)

Jeffrey R. Hill
, Dana D. Dlott
, M. D. Fayer
, Kristen A. Peterson
, Chris W. Rella
, Michael M. Rosenblatt
, Kenneth S Suslick
, Christopher J. Ziegler

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English (US)
Pages (from-to)	218-223
Number of pages	6
Journal	Chemical Physics Letters
Volume	244
Issue number	3-4
DOIs	https://doi.org/10.1016/0009-2614(95)00927-V
State	Published - Oct 6 1995

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/0009-2614(95)00927-V

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@article{40765a8af36242c7838c111a6038a2c9,

title = "Vibrational relaxation of carbon monoxide in model heme compounds. 6-coordinate metalloporphyrins (M = Fe, Ru, OS)",

abstract = "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.",

author = "Hill, \{Jeffrey R.\} and Dlott, \{Dana D.\} and Fayer, \{M. D.\} and Peterson, \{Kristen A.\} and Rella, \{Chris W.\} and Rosenblatt, \{Michael M.\} and Suslick, \{Kenneth S\} and Ziegler, \{Christopher J.\}",

note = "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.",

year = "1995",

month = oct,

day = "6",

doi = "10.1016/0009-2614(95)00927-V",

language = "English (US)",

volume = "244",

pages = "218--223",

journal = "Chemical Physics Letters",

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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 - 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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AN - SCOPUS:0000682127

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VL - 244

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

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Vibrational relaxation of carbon monoxide in model heme compounds. 6-coordinate metalloporphyrins (M = Fe, Ru, OS)

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