KMID : 1059519950390090692
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Journal of the Korean Chemical Society 1995 Volume.39 No. 9 p.692 ~ p.697
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Structural Studies on Complexes of Substituted B15C5 with Nd(¥²)
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Kim Hae-Joong
Shin Young-Kook Kim Si-Joong
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Abstract
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The chemical compositions and possible structure for the complex of B15C5 with Nd(¥²) have been determined by NMR spectrophotometry in acetone-d6. On the stepwise additions of Nd(¥²) to B15C5 solution of constant concentration, all the resonances shifted to downfield and the mole ratio of B15C5 to Nd(¥²) was found to be 1 : 1. From the line broadening of proton peaks of NMR spectra, it was found that oxygen atoms in B15C5 interact with Nd(¥²) ion. And in IR spectra of Nd(¥²)-B15C5 complex, the band of asymmetric C-C-O stretching vibration shifted to a lower frequency region upon complexation. We have proposed the possible structure of the Nd(¥²)-B15C5 coordinated with the five ether oxygen atoms and with the three bidentate nitrato groups.
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