Citation: Zhi Min JIN, Yuan Jiang PAN, Si Hua SHANG, Duan Jun XU, Yuan Zhi XU. The 1:2 Complex of Piperazine with Some Phenols:Hydrogen Bonding Pattern Involved in Transition States in Solution[J]. Chinese Chemical Letters, ;2000, 12(2): 105-106. shu

The 1:2 Complex of Piperazine with Some Phenols:Hydrogen Bonding Pattern Involved in Transition States in Solution

1.
Department of Chemistry Zhejiang University Hangzhou 310027;
2.
Zhejiang Entry-exit Inspection and Quarantine Bureau of the People's Republic of China Hangzhou 310012

Received Date: 26 July 1999

A novel model for the 1:2 complex of piperazine with some phenols in solution is established and verified.In CDCl₃ solution, one piperazine molecule is tied to two phenol molecules by hydrogen bonds of O-H---N and N-H---O.And the protons of > NH and-OH groups exchange quickly and simultaneously between the atoms of phenol oxygen and piperazine nitrogen.
- Piperazine, phenol, hydrogen bond, ¹HNMR, ESI-MS.
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