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Study on the second‐order non‐linear optical properties of 10‐hydrocarbylacridones
Author(s) -
Song HuaCan,
Zou YongDe
Publication year - 1999
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19990170108
Subject(s) - acridone , chemistry , electronegativity , atom (system on chip) , nitrogen , ring (chemistry) , nitrogen atom , thiazine , urea , absorption (acoustics) , photochemistry , crystallography , analytical chemistry (journal) , medicinal chemistry , stereochemistry , organic chemistry , optics , physics , computer science , embedded system
Twenty 10‐hydrocarbylacridones and 2‐methylacridone, 1‐hydroxyacridone were synthesized from acridone and characterized by mp, IR, UV, 1 H NMR and MS. Using Nd:YAG as a laser source, the second‐order harmonic generation (SHG) values of the acridone derivatives were measured in powder state as compared with urea powder. The results showed that the SHG values of some of 10‐hydrocarbylacridones were higher than that of urea, while others were lower. Although the hydrocarbyl substituents (R) attached to nitrogen atom of acridone were different in size and electronegativity, they had a little effect on the SHG values of 10‐hydrocarbylacridones. Substituents, such as methyl or hydroxy group connected to the phenyl ring, caused a little effect on the SHG values, too, compared with acrid one. The ability of R to push electron toward the nitrogen atom or to pull electron from the nitrogen atom play an important role on the maximum wavelengths of UV‐visible absorption of acridone derivatives.