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The triplet state of C60 studied by zero-field absorption-detected magnetic resonance

✍ Scribed by A. Angerhofer; J.U. von Schütz; D. Widmann; W.H. Müller; H.U. ter Meer; H. Sixl

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
562 KB
Volume
217
Category
Article
ISSN
0009-2614

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✦ Synopsis

Using absorption-detected magnetic resonance (ADMR) in zero field on Cso in a frozen toluene/polystyrene glass at temperatures between 6 and 40 K we observed two distinct triplet states. Their zero-field splitting parameters were determined by ADMR double resonance to be 1Dil=(114.6+l)x10-4 cm-', ~Et~=(4.8kl)~lO-~ cm-', lDul=(99+10)x10-4 cm-i, and

I En I = ( 17 k 10) x 10m4 cm-'. Triplet I was identified as the molecular triplet state of C, found earlier in frozen glasses, whereas triplet II was ascribed to either residual Cso clusters or a subpopulation of the molecules in an environment allowing for partial averaging of the dipolar splitting due to a fast pseudo-rotation mechanism.

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