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Tao Liu Yong-Gang Wei Qi-Hua Wu Qing-Xiang Guo 《Research on Chemical Intermediates》2005,31(9):833-844
A series of adamantanamine-(OCH2CH2)n-phenothiazine (n = 0, 1, 2, 3) electron donors was synthesized. Photoinduced electron transfer was observed in the supramolecular complex
of the phenothiazine derivatives with p-nitrobenzoyl-β-cyclodextrin (NBCD) through binding of the adamantyl group by the NBCD cavity, which is stabilized clearly via hydrophobic interactions in aqueous solution. Detailed Stern–Volmer constants were measured and they were partitioned into
dynamic Stern–Volmer quenching constants and static binding constants. The results revealed an efficient electron transfer
process inside the supramolecular systems compared to that controlled by diffusion. This observation also indicates that the
chain length will influence the electron transfer efficiency of a supramolecular donor–acceptor system. 相似文献
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电致化学发光免疫分析测定人绒毛膜促进性激素 总被引:1,自引:0,他引:1
本文用电化学发光法进行了人绒毛膜促进性激素(简称HCG)的免疫分析研究。实验在Na~2CO~3-NaHCO~3-KCl介质中以CoCl~2为催化剂测定发光标记试剂ABEI, 检测限达到1.3X10^-^1^2mol.L^-^1。ABEI-HCG标记物稀释至2X10^5倍仍可检出。采用双抗法测定了血清中的HCG。 相似文献
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本文利用电子自旋共振方法研究了Co2(CO)6(PBu3)2与几种醌类及吩噻嗪的光化学反应。实验结果表明,在邻苯醌存在下,CO2(CO)6(PBu3)2经光照射后可观察到未成对电子与Co核(I=7/2)发生相互作用而出现8线超精细分裂谱,这是自由基Co(CO)3PBu3通过Co与邻苯醌上的两羰基螯合而生成的自旋加合物的ESR谱,但是在对苯醌存在下,用光照射Co2(CO)6(PBu3)2时,只能观察到对苯半醌自由基。以吩噻嗪代替醌类Co2(CO)6(PBu3)2光解时产生吩噻嗪自由基。用18-16电子规则解释了钴配合物的生成。 相似文献
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