Paramagnetic Excitons in Solid Free Radicals

作者: Harden M. McConnell , Ruth Lynden‐Bell

DOI: 10.1063/1.1732895

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摘要: It is suggested that the low‐temperature paramagnetism of many aromatic free‐radical solids may be due to triplet excitons, and formation these exciton states rather than other magnetic crystal lattice structures favor a singlet pairing electrons on neighboring molecules. As an example it shown paramagnetic resonance spectra certain TCNQ charge‐transfer complexes observed by Chesnut Phillips interpreted in terms excitons.

参考文章(9)
Robert H. Webb, Dynamic Polarization Anomalies in Organic Free Radicals Physical Review Letters. ,vol. 6, pp. 611- 613 ,(1961) , 10.1103/PHYSREVLETT.6.611
A. S. Edelstein, M. Mandel, Antiferromagnetic to Ferromagnetic Transitions in Organic Free Radicals Journal of Chemical Physics. ,vol. 35, pp. 1130- 1131 ,(1961) , 10.1063/1.1701192
Himan Sternlicht, Harden M. McConnell, Paramagnetic Excitons in Molecular Crystals Journal of Chemical Physics. ,vol. 35, pp. 1793- 1800 ,(1961) , 10.1063/1.1732146
The alternation of bond lengths in long conjugated chain molecules Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 251, pp. 172- 185 ,(1959) , 10.1098/RSPA.1959.0100
M. E. Anderson, R. S. Rhodes, G. E. Pake, Proton Resonance Shifts and Electron Susceptibilities in 1,3‐Bisdiphenylene 2‐Phenyl Allyl Journal of Chemical Physics. ,vol. 35, pp. 1527- 1528 ,(1961) , 10.1063/1.1732101
R. E. Merrifield, Ionized States in a One‐Dimensional Molecular Crystal The Journal of Chemical Physics. ,vol. 34, pp. 1835- 1839 ,(1961) , 10.1063/1.1701086
Yuzuru Ooshika, A Semi-empirical Theory of the Conjugated Systems, III. Bond Alternation and Electron Fixation Journal of the Physical Society of Japan. ,vol. 14, pp. 747- 749 ,(1959) , 10.1143/JPSJ.14.747
D. B. Chesnut, W. D. Phillips, EPR Studies of Spin Correlation in Some Ion Radical Salts The Journal of Chemical Physics. ,vol. 35, pp. 1002- 1012 ,(1961) , 10.1063/1.1701103
R. E. Peierls, Louis D. Roberts, Quantum theory of solids Physics Today. ,vol. 9, pp. 29- 29 ,(1956) , 10.1063/1.3059963