作者: Yanlin Song , Lei Jiang , Daoben Zhu , Congfang Wang , Kun Zhao
DOI: 10.1016/S0022-3697(99)00374-1
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摘要: Abstract C60 biphenyl derivatives were synthesized, and their structures characterized by FT-IR, 1H NMR FD-MS. It was found that the products are mixture of C60(biphenyl)x C60(biphenyl)xC60, x=3–7. The molecular images C60(biphenyl)xC60 directly observed scanning tunneling microscope. Z-scan technique used to measure third-order optical nonlinearity derivatives; χ (3) =2.3×10 −5 esu .