Spectroscopic and Kinetic Studies of Photochemical Reaction of Magnesium   Tetraphenylporphyrin with Oxygen

doi:10.1021/jp811209k

CORC > 北京大学 > 化学与分子工程学院

	Spectroscopic and Kinetic Studies of Photochemical Reaction of Magnesium Tetraphenylporphyrin with Oxygen
	Zhang, Jianbin ; Zhang, Pengyan ; Zhang, Zhengfu ; Wei, Xionghui
刊名	journal of physical chemistry a
	2009
关键词	AQUEOUS-SOLUTION SINGLET OXYGEN AXIAL LIGAND PORPHYRINS BINDING O-2 REDUCTION COMPLEXES HEME METALLOPORPHYRINS
DOI	10.1021/jp811209k
英文摘要	Magnesium telraphenylporphyrin (MgTPP) was synthesized from meso-tetraphenylporphyrin (H(2)TPP) in N,N- dimethylformamide (DMF). The photochemical properties of M-TPP. in the presence of oxygen were investigated in dichloromethane (CHCl(2)) by conventional fluorescence, UV-vis, (1)H NMR, MALDI-TOF-MS, FTIR, and XPS spectroscopic techniques. Spectral analyses showed that under irradiation, MgTPP molecules reacted with O(2) molecules, and a stable 1:1 adduct was produced. During the photochemical reaction process, one oxygen molecule was bound to the pyrrolenine nitrogens in the MgTPP molecule, and the characteristic N-O bonds were identified using the FTIR and XPS techniques. The kinetics of the photochemical reaction of M-TPP with O(2) has been Studied in an oxygen-saturated solution. Under irradiation conditions, the experimental rate follows a pseudo-first-order reaction for MgTPR having a half-life from 40 to 130 min under various irradiation intensities. The kinetic rate constant of photochemical reaction of MgTPP with O(2) showed a linear dependence.; Chemistry, Physical; Physics, Atomic, Molecular & Chemical; SCI(E); EI; PubMed; 10; ARTICLE; 18; 5367-5374; 113
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150175]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, Jianbin,Zhang, Pengyan,Zhang, Zhengfu,et al. Spectroscopic and Kinetic Studies of Photochemical Reaction of Magnesium Tetraphenylporphyrin with Oxygen[J]. journal of physical chemistry a,2009.
APA	Zhang, Jianbin,Zhang, Pengyan,Zhang, Zhengfu,&Wei, Xionghui.(2009).Spectroscopic and Kinetic Studies of Photochemical Reaction of Magnesium Tetraphenylporphyrin with Oxygen.journal of physical chemistry a.
MLA	Zhang, Jianbin,et al."Spectroscopic and Kinetic Studies of Photochemical Reaction of Magnesium Tetraphenylporphyrin with Oxygen".journal of physical chemistry a (2009).