Optical−−nuclear double resonance (ondor) using narrow−band laser excitation of 
a singlet−−triplet transition in a molecular crystal

Achlama, A. M.; Harke, U.; Zimmermann, Herbert; Dinse, Klaus−Peter

doi:10.1016/0009-2614(82)80306-0

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Optical−−nuclear double resonance (ondor) using narrow−band laser excitation of a singlet−−triplet transition in a molecular crystal

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Zimmermann, Herbert
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;
Zimmermann Group, Max Planck Institute for Medical Research, Max Planck Society;
Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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https://www.sciencedirect.com/science/article/pii/0009261482803060/pdf?md5=a3a8d76e1a2c49cd48581bcf83572c2f&pid=1-s2.0-0009261482803060-main.pdf
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Citation

Achlama, A. M., Harke, U., Zimmermann, H., & Dinse, K. (1982). Optical−−nuclear double resonance (ondor) using narrow−band laser excitation of a singlet−−triplet transition in a molecular crystal. Chemical Physics Letters, 85(3), 339-344. doi:10.1016/0009-2614(82)80306-0.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-B000-1

Abstract

The first experiment is described in which the nuclear spins of an organic molecule are pumped by exciting the spin-forbidden phononless singlet—triplet transition with a narrow-band laser. Irradiation of the sample with an additional rf field enabled high-precision direct optical determination of the 14N quadrupole tensor in the ground state of phenazine-h8 in a phenazine-d8 host crystal.