金属和卟啉的络合物

基本解释 (translations)

porphyratin

与金属和卟啉的络合物相关的网络例句 [注：此内容来源于网络，仅供参考]

Methods In view of the selective accumulation of porphyrin derivatives in tumor tissue, three ftorafur-porphyrin compounds and three metal compounds were designed, and the target compounds were synthesized with satisfied yield via a four-step procedure starting from pyrrol and substituted benzaldehydes.

根据卟啉对肿瘤组织的选择性滞留作用，设计了3个卟啉替加氟化合物及3个金属络合物，并以吡咯和取代苯甲醛为原料经4步反应以满意的收率得到目标化合物。

Voltammetric behaviors of adrenaline and its beryllium complex in ammoniacal solution;(3). studies of europium at chemically modified electrode and its application in analytical chemistry.

论文分为三部分，即水溶性金属卟啉络合物的电分析化学研究；肾上腺素及其铍络合物的电分析化学研究和铕化学修饰电极的研究及其分析应用。

The formal potentials in cyclic voltammograms of these 3+ valence complexes are followed: Co〓-TPPS (-0.08V )＞Fe〓TPPS (-0.14V)＞Mn〓-TPPS (-0.23V). The electrochemical reaction of Mn〓-TPPS is reversible, and both of Co〓-TPPS and Fe〓-TPPS are quasi-reversible. The standard heterogeneous rate constants of Co〓-TPPS and Fe〓-TPPS were determined to be 1. 4×10〓cm/s and 1.4×10〓cm/s respectively. The rates of electrode reaction are as followed: Mn〓-TPPS＞Co〓-TPPS＞Fe〓-TPPS, e.i. Mn〓-TPPS is the most easily oxidized by the dissolved oxygen, and Fe〓-TPPS is oxidized slower than Co〓-TPPS. Ni〓-TPPS can not be oxidized. It is considered that oxygen plays an important role in the valence change of central metal atom and the rate of electron transfer in some metalloporphyrins.

三价金属卟啉络合物在循环伏安图上可得到三价到二价的还原和氧化响应，电极电位从大到小排列为：Co〓-TPPS(-0.08V)＞Fe〓-TPPS(-0.14V)＞Mn〓-TPPS(-0.23V)，电极反应可逆性也不相同，Mn〓-TPPS是可逆过程，Co〓-TPPS、Fe〓-TPPS是准可逆过程，实验测得Co〓-TPPS的标准电极反应速率常数ks＝1.4×10〓cm/s，Fe〓-TPPS的ks＝1.4×10〓cm/s，电极反应的速率从大到小为：Mn〓-TPPS＞Co〓-TPPS＞Fe〓-TPPS，即Mn〓-TPPS最容易被溶解氧所氧化，Fe〓-TPPS被氧化的速度最慢，Ni〓-TMPyP不能被氧化，因此我们认为溶解氧对金属卟啉中心离子的价态和电子转移速率起着重要作用。