Synthesis and Characterization of Cerium Tetraphenylporphyrin Nitrate and Molecular Recognition for NO.

Autor: Qiu-xia Xu, Jian-bin Zhang, Tian-xiang Zhao, Gong-jia Lan, Xiong-hui Wei
Zdroj: Chinese Journal of Chemical Physics (1674-0068); Jun2014, Vol. 27 Issue 3, p302-306, 5p
Abstrakt: Cerium (III) tetraphenylporphyrin nitrate Ce(TPP)NO3 was synthesized by using mesotetraphenylporphyrin (TPP) and Ce(NO3)⋅6H2O in mixture solution of CHCl3 and C2H5OH (V:V =1:1). The complex was characterized by UV-Vis, FT-IR, conventional fluorescence, MALDI-TOF-MS, and ¹H NMR spectral techniques. The structure of complex was proposed viaSpectral analyses, in which tetraphenylporphyrin was coordinated to a cerium ion in a tetradentate fashion, while one nitrate was coordinated to the same cerium ion. After bubbling NO to the solution of Ce(TPP)NO3 in CH2Cl2, spectral analyses suggested that Ce(TPP)NO3 could interact with NO to form a novel complex of Ce(TPP)(NO)NO3, and NO was coordinated to the center cerium ion. When nitrogen was poured into the Ce(TPP)(NO)(NO3) solution, the complex could be reduced to Ce(TPP)NO3. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index