作者:Alexey A. Goryunkov、Igor V. Kuvychko、Ilya N. Ioffe、Donald L. Dick、Lev N. Sidorov、Steven H. Strauss、Olga V. Boltalina
DOI:10.1016/s0022-1139(03)00173-8
日期:2003.11
C60(CF3)n (n=2, 4, 6, 8, 10). Four of them have >90% compositional purity. Two of the compounds, C60(CF3)4 and C60(CF3)6, were obtained as C1-symmetry isomers with >90% isomeric purity, and a sample of C60(CF3)2 also contained ca. 15–20% of a Cs-symmetry isomer of C60(CF3)4. The new compounds were characterized by IR and EI mass spectrometry (all five compounds), NMR spectroscopy (C60(CF3)2, C60(CF3)4
C 60与三氟乙酸银(I)的高温反应,然后在500°C升华,随后进行HPLC纯化,从而分离出五个三氟甲基[60]富勒烯C 60(CF 3)n(n = 2,4, 6、8、10)。其中四个具有> 90%的成分纯度。获得了两个化合物,即C 60(CF 3)4和C 60(CF 3)6,它们是具有> 90%异构体纯度的C 1对称异构体,并且C 60(CF 3)2的样品中还含有大约。C的15–20%C 60(CF 3)4的s-对称异构体。通过IR和EI质谱(所有五个化合物),NMR光谱(C 60(CF 3)2,C 60(CF 3)4和C 60(CF 3)6)和二维COZY NMR对这些新化合物进行表征。光谱学(C 60(CF 3)4和C 60(CF 3)6)。在理论上的AM1和DFT级别上的计算导致对C 60(CF 3)2,C 1 -C 60(CF 3)4,C s -C 60(CF 3)4,以及C 1