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Citation: Chen Rongti, Zhu Zhiang, Zhang Yibao, Wu Li. INVESTIGATION OF ULTRAVIOLET SPECTRA ON N-(SUBSTITUTED-PHENYL)-ETHYLGLYCINATES[J]. Acta Physico-Chimica Sinica, ;1985, 1(05): 404-411. doi: 10.3866/PKU.WHXB19850502 shu

INVESTIGATION OF ULTRAVIOLET SPECTRA ON N-(SUBSTITUTED-PHENYL)-ETHYLGLYCINATES

1.
Department of Chemistry, Nankai University, Tianjin

Received Date: 30 November 1984
Available Online: 15 October 1985

The ultraviolet spectra of N-(substituted phenyl)-ethylglycinates (RPhGEt, R=p-OCH_3, p-CH_3, m-CH_3, -H, m-OCH_3, m-Cl, p-Cl, m-NO_2, p-NO_2) have been determened in water, dioxane, dioxane-water, ethyl alcohol, ehtyl ester, heptane and benzene by means of a Baokmann DU-8B spectrophotometer. The experimental results showed that:
(1) The bathochromic shift of ultraviolet absorption spectra of RPhGEt in various solvents was observed to compare with the characterized absorption hands of benzene. The energy difference between ground state and first excited state of RPhGEt followed the order:
p-OCH_3<p-CH_3<m-CH_3<-H<m-OCH_3; p-NO_2<m-NO_2<p-Cl<m-Cl<m-OCH_3
(2) ...
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