A Picosecond Study of Rapid Multistep Radiationless Decay in Manganese(III) Porphyrins

Xinwei Yan; Christine Kirmaier; Dewey Holten

doi:10.1021/ic00246a037

A Picosecond Study of Rapid Multistep Radiationless Decay in Manganese(III) Porphyrins

Xinwei Yan
, Christine Kirmaier
, Dewey Holten

Department of Chemistry

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

23 Scopus citations

Abstract

Picosecond transient absorption studies of two Mn(III) porphyrins in coordinating and noncoordinating solvents have revealed two resolvable transient states in each case. The lifetimes of the transients are ≤30 ps and 80 or 140 ps, the faster component being instrument-limited and the slower one depending on the complex. We attribute the transients to the two lowest energy tripmultiplet states that arise from coupling of the ring triplet and the unpaired metal electrons. The rapid deactivation of both tripmultiplets probably proceeds via lower energy CT or (d,d) excited states.

Original language	English
Pages (from-to)	4774-4777
Number of pages	4
Journal	Inorganic Chemistry
Volume	25
Issue number	26
DOIs	https://doi.org/10.1021/ic00246a037
State	Published - 1986

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title = "A Picosecond Study of Rapid Multistep Radiationless Decay in Manganese(III) Porphyrins",

abstract = "Picosecond transient absorption studies of two Mn(III) porphyrins in coordinating and noncoordinating solvents have revealed two resolvable transient states in each case. The lifetimes of the transients are ≤30 ps and 80 or 140 ps, the faster component being instrument-limited and the slower one depending on the complex. We attribute the transients to the two lowest energy tripmultiplet states that arise from coupling of the ring triplet and the unpaired metal electrons. The rapid deactivation of both tripmultiplets probably proceeds via lower energy CT or (d,d) excited states.",

author = "Xinwei Yan and Christine Kirmaier and Dewey Holten",

year = "1986",

doi = "10.1021/ic00246a037",

language = "English",

volume = "25",

pages = "4774--4777",

journal = "Inorganic Chemistry",

issn = "0020-1669",

number = "26",

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T1 - A Picosecond Study of Rapid Multistep Radiationless Decay in Manganese(III) Porphyrins

AU - Yan, Xinwei

AU - Kirmaier, Christine

AU - Holten, Dewey

PY - 1986

Y1 - 1986

N2 - Picosecond transient absorption studies of two Mn(III) porphyrins in coordinating and noncoordinating solvents have revealed two resolvable transient states in each case. The lifetimes of the transients are ≤30 ps and 80 or 140 ps, the faster component being instrument-limited and the slower one depending on the complex. We attribute the transients to the two lowest energy tripmultiplet states that arise from coupling of the ring triplet and the unpaired metal electrons. The rapid deactivation of both tripmultiplets probably proceeds via lower energy CT or (d,d) excited states.

AB - Picosecond transient absorption studies of two Mn(III) porphyrins in coordinating and noncoordinating solvents have revealed two resolvable transient states in each case. The lifetimes of the transients are ≤30 ps and 80 or 140 ps, the faster component being instrument-limited and the slower one depending on the complex. We attribute the transients to the two lowest energy tripmultiplet states that arise from coupling of the ring triplet and the unpaired metal electrons. The rapid deactivation of both tripmultiplets probably proceeds via lower energy CT or (d,d) excited states.

UR - https://www.scopus.com/pages/publications/24244469911

U2 - 10.1021/ic00246a037

DO - 10.1021/ic00246a037

M3 - Article

AN - SCOPUS:24244469911

SN - 0020-1669

VL - 25

SP - 4774

EP - 4777

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 26

ER -

A Picosecond Study of Rapid Multistep Radiationless Decay in Manganese(III) Porphyrins

Abstract

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