[Spectroscopic study on DL-homocysteic acid and it's complexes].
The main IR bands of the DL-Homocysteic acid was preliminary assigned. The complexes of DL-Homocysteic acid with Na+, K+, Ca2+ were synthesized. Element analysis and TGA-DTA were used to conclude the compositions of these complexes. The FTIR and FT-Raman spectra were studied to distinguish the different coordination structures. The bands of carboxyl, sulfonate and amino groups are all shifted. The peaks of-CH2- also changed a lot. The results indicated that the H-bonding structures among the moleculars were rearranged. The carboxyl and sulfonate groups of DLH both coordinated with the metal ions. And the coordination structure of C=O group in the three complexes were all monodentated.
Zhang
X
X
College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, University of Hong Kong Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, 100871 Beijing.
Li
W
W
Jia
H
H
Weng
S
S
Wu
J
J
D002118:Calcium / Q000032:analysis* / Q000737:chemistry; D002614:Chelating Agents / Q000032:analysis* / Q000737:chemistry; D006710:Homocysteine / Q000031:analogs & derivatives* / Q000032:analysis* / Q000737:chemistry; D011188:Potassium / Q000032:analysis / Q000737:chemistry; D012964:Sodium / Q000032:analysis / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*; D013059:Spectrum Analysis, Raman
D002614:Chelating Agents; D006710:Homocysteine; C007956:homocysteic acid; D012964:Sodium; D011188:Potassium; D002118:Calcium