Abstract
A π–d hybrid electronic system, (DMe-DCNQI)2Cu, where the π orbital of the organic molecule, DMe-DCNQI, is strongly hybridized with the d xy orbital of Cu, has been studied by 15 N and 13 C NMR at three sites. The analysis of Knight shift, K, and local spin susceptibilities in the π and d orbitals was carried out separately. The π and d spin susceptibilities were found to be quite different in magnitude and temperature dependence. Moreover, the Knight shift was separated into those of two constituent bands; a one-dimensional π band and a three-dimensional π–d band. The relative weight of the band susceptibilities is strongly temperature dependent.
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