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Citation: ZHANG Gan-Bing, WANG Shi-Min, ZHAO Lei, CHENG Shi-Yuan. Determination of the 2nd-Order Polarizability of Imidazole Derivatives by a Solvatochromic Method[J]. Chinese Journal of Applied Chemistry, ;2000, 17(5): 507-511. shu

Determination of the 2nd-Order Polarizability of Imidazole Derivatives by a Solvatochromic Method

1.
Faculty of Chemistry and Materials Science, Hubei University, Wuhan 430062

Received Date: 15 December 1999
Available Online: 5 April 2000

The 2nd-order polarizability values of two imidazole compounds:2-p-acetami-nophenyl-4,5-di-p-nitrophenylimidazole and 2-p-nitrophenyl-4,5-di-p-acetaminophenyl imidazole in different solvents were estimated by a solvatochromic method based on Bilot-Kawshi and Lippert equations. The Uvalues of two compounds are 24.47×10^-30 esu and 16.80×10^-30 esu, respectively, in good agreement with those by FF/PM3 quantum chemistry calculations. The results indicated that the main contributors for static U₀ are not the λ_max, but the transition oscillator strength f and dipole differentce Δ_.
- imidazole derivative,
- 2nd-order polarizability,
- solvatochromism,
- NLO material
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