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Citation: YANG Wei-Chun, JU Chuan-Chuan, FAN Su-Hua, SUN Hao-Ling, WANG Ke-Zhi. Crystal Structure and Acid-Base Properties of Ozagrel[J]. Acta Physico-Chimica Sinica, ;2008, 24(01): 176-178. doi: 10.3866/PKU.WHXB20080132 shu

Crystal Structure and Acid-Base Properties of Ozagrel

1.
College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China; College of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467002, Henan Province, P. R. China

Received Date: 4 September 2007
Available Online: 12 November 2007

Crystal structure of ozagrel was determined by X-ray diffraction. The compound was crystallized in the orthorhombic space group P212121. The lattice parameters are, a=0.62522(6) nm, b=0.91897(8) nm, c=1.95789(18) nm, V=1.12492 (18) nm3, Z=4. The ground-and excited-state acid-base properties of ozagrel were studied using UV and emission spectrophotometric pH titrations, and the ground-and excited-state acidity constants were derived. The results showed that ozagrel acted as a pH induced on/off luminescence switch.
- Ozagrel; Crystal structure; Acid-base property; Ultraviolet spectrum; Fluorescence spectrum
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