摘要
应用紫外可见吸收光谱研究了 meso-四 (4-N-苄基吡啶基 )卟啉 (MTBPyP4＋ ,M=H2,Zn)阳离子与金属氧簇阴离子 (SiW12O4－ 40)在水溶液中的光谱行为 .光谱演变及 Job图表明 MTBPyP4＋与 SiW12O4－ 40在水溶液中可形成稳定的 1∶ 1的超分子化合物 .同时本文还考察了化学计量为 1∶ 1的 [CoTBPyP][SiW12O40]超分子化合物的电催化分子氧还原行为 ,表明该类超分子化合物有望成为一类新的催化氧还原的修饰电极材料 .
Spectral behavior of meso-tetrakis (4-N-benzylpyridyl) porphyrin-metal-oxo cluster (SiW12O404-) supramolecular systems in aqueous solution was studied by UV-visible spectrometry. The spectral evolution and Job's plots reveal that the stable aggregates contain equal numbers of the cationic porphyrins and the anionic SiW12O404-. The electrocatalytic behavior of reducing O-2 for the 1 : 1 supramolecular complex [CoTMPyP] [SiW12O40], was also investigated, the supramolecular complex might be hopeful for being used as a new material of modified electrodes for electrocatalytic reduction of O-2.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2001年第2期128-133,共6页
Acta Physico-Chimica Sinica
基金
国家自然科学基金! (29733090和 29803003)
高等学校博士学科点专项科研基金&&
