Mit 9 Abbildungen I n h a l t s u b e r s i c h t : Es wurde die Temperaturabhiingigkeit der magnetischen Suszeptibiliet und die paramagnetische Elektronenresonanz von 12 Elbmentdipyridylen untersucht.Bei den Hauptgruppenverbindungen und ScDipy, ist der Magnetismua infolge Spinwechselwirkung von Radikalanionen stark temperaturabhgngig. In den ubrigen Ubergangsmetallverbindungen ist die Temperaturabhangigkeit weniger ausgepragt. Es wird versucht, sie auf Grund qualitativer Betrachtungen nach der LCAO-&TO-Theorie zu erklaren.A b s t r a c t : The temperature dependence of the magnetic susceptibility and the EPR were investigated on 12 element dipyridyls. The magnetism of the main group compounds and of ScDipy, depends strongly on the temperature, owing to spin interaction of radical anions. l'he temperature dependence is less marked in other transition metal compounds. It is attempted to explain the dependence by means of the LCAO-NO theory.
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