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Synthesis and characterization of some organic cations buckminsterfulleride salts

机译:某些有机阳离子巴克敏斯特Fulleride盐的合成与表征

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Six new organic cations (Triphenylmethane dye, Hemicyanine dyes, calix[4]arene derivative) buckminsterfulleride salts were prepared by metathetical reaction. The products were characterized by UV-NIR, ESI-MS, ESR and FT-IR. The ESR spectra show a typical C_(60) anion radical signal and dependence on countercations and temperature, the linewidth has an abrupt increasing at about the THF melting point and the ESR signal diminishes gradually when the temperature below 170 K. The possible explanation is that the THF crystallization results in exclusion of solute from the lattice and leads to C_(60)- anion aggregation, which promotes line broadening and diamagnetic dimer of (C_(60))(_2)~(2-) forming.
机译:通过易位反应制备了六种新的有机阳离子(三苯基甲烷染料,半菁染料,杯[4]芳烃衍生物)巴克敏斯特富勒盐。产品通过UV-NIR,ESI-MS,ESR和FT-IR表征。 ESR光谱显示出典型的C_(60)阴离子自由基信号,并且与抗衡阳离子和温度有关,线宽在THF熔点附近突然增加,当温度低于170 K时ESR信号逐渐减小。可能的解释是THF结晶导致溶质从晶格中排除,并导致C_(60)-阴离子聚集,从而促进了线宽和(C_(60))(_ 2)〜(2-)形成的反磁性二聚体。

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