Quantum chemical calculations of the molecular structure of diphenylguanidine and experimental studies of its tautomerism in solution

被引:7
作者
Bocharov, VN [1 ]
Bureiko, SF
Koll, K
Rospenk, M
机构
[1] St Petersburg State Univ, Inst Phys, St Petersburg 199034, Russia
[2] Univ Wroclaw, Inst Chem, PL-50138 Wroclaw, Poland
关键词
D O I
10.1007/BF02903623
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
MNDO-PM3 and AM1 quantum chemical calculations of the molecular structure of N,N'-diphenylguanidine (DPG) prove that the molecule preferably exists as an asymmetric tautomer with a basic center C=N-. IR and UV spectral data, dipole moments, and average molecular weights of DPG solutions in nonpolar and low-polar solvents confirm the results of calculations, indicating formation of hydrogen-bonded cyclic self-associates of DPG in solution.
引用
收藏
页码:502 / 507
页数:6
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