CAS: 637-01-4; N1,N1,N4,N4-Tetramethylbenzene-1,4-Diamine Dihydrochloride

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N,N,N',N'-tetramethyl-para-phenylenediamine

N,N,N',N'-四甲基对苯二胺置于四氯化碳体系中,化学反应生成 N1,N1,N4,N4-四甲基苯-1,4-二胺氯化物盐
参考文献:Contact Ion Pairs Formed From Photolyzed Tmpd-Carbon Tetrachloride And Tmpd-Carbon Tetrachloride-Benzene Solutions Studied By The Time-Resolved Microwave Dielectric Absorption Technique
标题:Contact Ion Pairs Formed From Photolyzed Tmpd-Carbon Tetrachloride And Tmpd-Carbon Tetrachloride-Benzene Solutions Studied By The Time-Resolved Microwave Dielectric Absorption Technique
摘要:One-Photon Ionization Of Tmpd Has Been Investigated By Observing The Time Variation Of Microwave Dielectric Loss Caused By Irradiation Of 355-Nm Laser Pulses On A Solution Of Tmpd In Ccl4 And On That Containing Both Tmpd And Ccl4 In C6H6 Solvent. In The Tmpd-Ccl4 System The Observed Signal Shows A Rapid Growth Followed By A Second-Order Decay Along With Much Slower Decays. These Features Can Be Interpreted As Reflecting The Formation Of Contact Ion Pairs (Tmpd+cl-) And Their Mutual Association Leading To Ion-Pair Dimers And Clusters. In The Tmpd-Ccl4-C6H6 System A First-Order Growth Of The Dielectric Absorption Is Observed,Which Corresponds To Ion-Pair Formation By Electron Transfer From The Excited Triplet State Of Tmpd To Ccl4,And The Reaction Rate Is Diffusion-Controlled. The Dipole Moment Of The Ion Pair Has Been Estimated To Be 11 +/-3 D From Two Different Methods; One Based On The Amplitude Of The Detected Signal And The Other On The Rate Constant For The Ion-Pair Association. The Dipole Moment Of The Ion-Pair Dimer Appears To Be Larger Than That Of The Ion Pair Itself. The Analysis Of Data Leads To A Suggestion That The Quantum Yield Of The Ion-Pair Formation Is Close To Unity.
DOI:10.1021/j100169A032