Synthesis and Anisotropic Magnetic Behavior of Anionic Ce@C<sub>82</sub> Carbene Adducts

DOI

Bibliographic Information

Other Title
  • Ce@C<sub>82</sub>カルベン付加体アニオンの合成と磁気異方性観測

Description

Derivatives of Ce@C82 (C2v) have been synthesized and fully characterized, and their anisotropic magnetism has been observed as paramagnetic shifts in NMR measurements. Carbene addition by photochemical reaction afforded two isomers of Ce@C82(C2v)Ad (Ad = adamantylidene), 2a and 2b, demonstrating high regioselectivity. The two isomers were characterized using MALDI-TOF mass spectrometry, vis-NIR absorption spectroscopy, 1H and 13C NMR spectroscopy, and electrochemistry. The structure of the minor isomer (2b) was elucidated by single-crystal X-ray structural analysis. 13C and 1H NMR measurements revealed the characteristic anisotropic interaction between the f electron on the Ce atom and nuclear spins of the carbon atoms of the cage and the protons of the Ad group, respectively.

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Details 詳細情報について

  • CRID
    1390282680531793024
  • NII Article ID
    130004729003
  • DOI
    10.11494/kisoyuki.2009.0.46.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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