Endor and triple resonance in solutions of the chlorophyll a and bis(chlorophyll)cyclophane radical cations

M. Huber; F. Lendzian; W. Lubitz; E. Tränkle; K. Möbius; M. R. Wasielewski

doi:10.1016/0009-2614(86)80648-0

Endor and triple resonance in solutions of the chlorophyll a and bis(chlorophyll)cyclophane radical cations

M. Huber^*, F. Lendzian, W. Lubitz, E. Tränkle, K. Möbius, M. R. Wasielewski

^*Corresponding author for this work

Chemistry

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

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Abstract

The radical cations of chlorophyll a (Chl a) and bis ( chlorophyll )cyclophane (BCP), a synthetic model dimer of chlorophyll, were studied by ENDOR and TRIPLE resonance in liquid solution. The measured hyperiine coupling constants (hfcs) of Chl a⁺ were compared with the results of molecular orbital calculations. By comparing the hfcs of BCP⁺ and Chl a⁺ a localization of the unpaired electron on one macrocycle of BCP⁺ is deduced.

Original language	English (US)
Pages (from-to)	467-473
Number of pages	7
Journal	Chemical Physics Letters
Volume	132
Issue number	4-5
DOIs	https://doi.org/10.1016/0009-2614(86)80648-0
State	Published - Dec 19 1986

Funding

We are highly indebtedt o Dr. H. Km-reck for numerouse ncouragingd iscussionsa nd to Dr. M. Plato for helpfuls uggestioncso ncerningth et heoret-ical aspectso f this work. Work in Berlin was supported by the DeutscheF orschungsgemeinschaft ( Sonderforschungsberei1ch61 ). Work at Argonne NationalL aboratoryw ass upportedb y the Division of ChemicalS ciencesO, ffrce of Basic Energy Sciences,D epartmenot f Energyu nderc ontractW -3l - 109-ENG-38.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Endor and triple resonance in solutions of the chlorophyll a and bis(chlorophyll)cyclophane radical cations",

abstract = "The radical cations of chlorophyll a (Chl a) and bis ( chlorophyll )cyclophane (BCP), a synthetic model dimer of chlorophyll, were studied by ENDOR and TRIPLE resonance in liquid solution. The measured hyperiine coupling constants (hfcs) of Chl a+ were compared with the results of molecular orbital calculations. By comparing the hfcs of BCP+ and Chl a+ a localization of the unpaired electron on one macrocycle of BCP+ is deduced.",

author = "M. Huber and F. Lendzian and W. Lubitz and E. Tr{\"a}nkle and K. M{\"o}bius and Wasielewski, {M. R.}",

note = "Funding Information: We are highly indebtedt o Dr. H. Km-reck for numerouse ncouragingd iscussionsa nd to Dr. M. Plato for helpfuls uggestioncso ncerningth et heoret-ical aspectso f this work. Work in Berlin was supported by the DeutscheF orschungsgemeinschaft ( Sonderforschungsberei1ch61 ). Work at Argonne NationalL aboratoryw ass upportedb y the Division of ChemicalS ciencesO, ffrce of Basic Energy Sciences,D epartmenot f Energyu nderc ontractW -3l - 109-ENG-38.",

year = "1986",

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doi = "10.1016/0009-2614(86)80648-0",

language = "English (US)",

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pages = "467--473",

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TY - JOUR

T1 - Endor and triple resonance in solutions of the chlorophyll a and bis(chlorophyll)cyclophane radical cations

AU - Huber, M.

AU - Lendzian, F.

AU - Lubitz, W.

AU - Tränkle, E.

AU - Möbius, K.

AU - Wasielewski, M. R.

N1 - Funding Information: We are highly indebtedt o Dr. H. Km-reck for numerouse ncouragingd iscussionsa nd to Dr. M. Plato for helpfuls uggestioncso ncerningth et heoret-ical aspectso f this work. Work in Berlin was supported by the DeutscheF orschungsgemeinschaft ( Sonderforschungsberei1ch61 ). Work at Argonne NationalL aboratoryw ass upportedb y the Division of ChemicalS ciencesO, ffrce of Basic Energy Sciences,D epartmenot f Energyu nderc ontractW -3l - 109-ENG-38.

PY - 1986/12/19

Y1 - 1986/12/19

N2 - The radical cations of chlorophyll a (Chl a) and bis ( chlorophyll )cyclophane (BCP), a synthetic model dimer of chlorophyll, were studied by ENDOR and TRIPLE resonance in liquid solution. The measured hyperiine coupling constants (hfcs) of Chl a+ were compared with the results of molecular orbital calculations. By comparing the hfcs of BCP+ and Chl a+ a localization of the unpaired electron on one macrocycle of BCP+ is deduced.

AB - The radical cations of chlorophyll a (Chl a) and bis ( chlorophyll )cyclophane (BCP), a synthetic model dimer of chlorophyll, were studied by ENDOR and TRIPLE resonance in liquid solution. The measured hyperiine coupling constants (hfcs) of Chl a+ were compared with the results of molecular orbital calculations. By comparing the hfcs of BCP+ and Chl a+ a localization of the unpaired electron on one macrocycle of BCP+ is deduced.

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U2 - 10.1016/0009-2614(86)80648-0

DO - 10.1016/0009-2614(86)80648-0

M3 - Article

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SN - 0009-2614

VL - 132

SP - 467

EP - 473

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-5

ER -

Endor and triple resonance in solutions of the chlorophyll a and bis(chlorophyll)cyclophane radical cations

Abstract

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