Abstract
UV-irradiation at low temperatures may bring hydrogen atoms into interstitial sites (produceU 2 centers) in alkali halides. At about 100 °K the hydrogen atoms begin to leave their sites and may react with any diamagnetic centerX to a paramagnetic center HX. In this paper CN− and NCO− ions are used for X. The paramagnetic centers are investigated by the method of ESR. The spectra and thermal properties of1H12C14N−,2H12C14N−,1H13C14N−,1HNCO− and2HNCO− are described. As well signals are found, which may be attributed to the2H13C14N− center. A simple cryostat is described for use at temperatures continously variable between 25 °K and 500 °K.
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Unseren hochverehrten Lehrern, Herrn Prof. Dr. R.Hilsch und Herrn Prof. Dr. W.Sander, danken wir für die Ermöglichung und Förderung dieser Arbeit. Hilfsmittel verdanken wir der Deutschen Forschungsgemeinschaft und der Akademie der Wissenschaften in Göttingen.
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Beuermann, G., Hausmann, A. Elektronenspinresonanz vonU 2-Folgezentren in Alkalihalogenid-Kristallen. Z. Physik 204, 425–442 (1967). https://doi.org/10.1007/BF01325734
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DOI: https://doi.org/10.1007/BF01325734