Electron spin-echo experiments of a ground organic triplet state in a single crystal, diphenylmethylene in benzophenone
โ Scribed by Cheupyeng Cheng; Tien-Sung Lin; David J. Sloop
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 594 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
Rccclved I6 August I976
Llcctron spm-echo cxpcrlmcnts of the ground triplet state ofdiphcnylmcthylcnc_Irio and -cl10 nnbcddcd in bcnzophcnone crystals at low tcmpcraturc\ (40-60 K and 4.2 K) arc prcscntcd. I'ronounrcd moduI.rtions due the proton and dcutcron hypcrfinc intcractwns have been obscrvcd in both two-pulse echo and stm~ulatcd echo decays. 'fhc spin-iattlcc relaxation tnnc\ of the system show very little anisotropy.
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Electron spin echo detected EPR spectra have been obtained of the triplet state of a single crystal of the reaction center of Rhodobacter sphaeroides R26. The crystal is found to be monoclinic and to contain four magnetically inequivalent sites. The magnetic relaxation behaviour of this triplet has
The width in k-space of the wart packets m the line= chvn trIplet exciton system of 1.2;15-tetrachlombcnzene has beenderrved irom the vanxion of the tnplet spm phase memory tune Tht over the zero-field hneshapes. This wldlh appears to be k mdepcndent.