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Very slowly tumbling spin labels: adiabatic rapid passage

✍ Scribed by James S. Hyde; Larry Dalton

Publisher: Elsevier Science
Year: 1972
Tongue: English
Weight: 532 KB
Volume: 16
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(72)80426-3

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✦ Synopsis

Rapid-pasage

EPR spectra from very slowly tumbling nitroxide radicals have been found to be sensitive in shape to the molecular motion. This is true even though the ordinary EPR spectra are substantially identical with that from a rigid powder. Rotationai correlation times have been measured between 2X IO-7 and 2X 10-S sec. The technique is potentially applicable to the study of' motion of biofogicat macromolecules with rigidly bound spin labels.

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