Chem. J. Chinese Universities ›› 2005, Vol. 26 ›› Issue (9): 1598.

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Synthesis, Crystal Structure and Properties of Trisodium 5,3',5'-Trisulfonate-2,3,4,4'-tetrahydroxy-deoxybenzoin

YAN Xi, WU Fu-Li, LIU Yun, LI Jia-Mian, ZHENG Ze-Bao, YAN Hui-Qing, SI Shu-Feng   

  1. Department of Chemistry, Beijing Normal University, Beijing 100875, China
  • Received:2005-01-18 Online:2005-09-10 Published:2005-09-10

Abstract: A new water soluble compound trisodium 5,3',5'-trisulfonate-2,3,4,4'-tetrahydroxy-deoxybenzoin(TTDB) was synthesized and characterized by IR, UV, 1H NMR, and elemental analysis. Single crystals of(TTDB) was determined by X-ray single crystal diffraction. The scavenging effect of compounds on hydroxy radicals was detected by fluorescent spectrophotometry. The electrochemistry behavior of the compounds in non-aqueous solution DMF was carried out by means of cyclic voltammetry. The experimental result shows that the crystal [C14H17Na3O18S3] belongs to monoclinic space group C2/c with unit cell constants a={1.422 3(4) nm,} b=2.432 7(8) nm, c=1.359 6(4) nm, β=113.044(5)°, Z=8, V=4.329(2) nm3, Dc =1.925 Mg/m3, F(000)=2 568, M-r=638.43, R1=0.095 0, wR2=0.264 8. The half effective concentration EC50 of scanvenging hydroxy radicals of compounds THDB and TTDB are 53.1 and 47.3 μmol/L, respectively. The electrochemistry redox processes of THDB and TTDB are different.

Key words: Trisodium-5,3',5'-trisulfonate-2,3,4,4'-tetrahydroxy-deoxybenzoin, Crystal structure, Antioxidation, Cyclic voltammetry

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