Structural Studies on Complexes of Substituted B15C5 with Nd(Ⅲ)

Nd(Ⅲ)과 B15C5 치환체와의 착물의 구조에 관한 연구

  • 김해중 (고려대학교 이과대학 화학과) ;
  • 신영국 (충북대학교 자연과학대학 화학과) ;
  • 김시중 (고려대학교 이과대학 화학과)
  • Published : 19950900


The chemical compositions and possible structure for the complex of B15C5 with Nd(Ⅲ) have been determined by NMR spectrophotometry in acetone-d6. On the stepwise additions of Nd(Ⅲ) to B15C5 solution of constant concentration, all the resonances shifted to downfield and the mole ratio of B15C5 to Nd(Ⅲ) 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(Ⅲ) ion. And in IR spectra of Nd(Ⅲ)-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(Ⅲ)-B15C5 coordinated with the five ether oxygen atoms and with the three bidentate nitrato groups.



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