Effects of Ligand Chain Length and Terminal N-alkylation on the Protonation Constants and Stability Constants of Some Transition Metal Complexes of Linear Tetraaza and Pentaaza Ligands

C. Allen Chang, Fa Kun Shieh, Yuh Liang Liu, Chung Sun Chung

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

A number of terminal N-alkylated linear tetraaza and pentaaza ligands were prepared. Their ligand protonation constants and some transition and post-transition metal (Ni2+, Cu2+, Zn2+, and Cd2+) complex stability constants were determined by potentiometric titration methods. In general, methylation and ethylation at the terminal nitrogen atoms caused the corresponding ligand nitrogen basicity to increase; however, the corresponding metal complex stabilities were decreased compared to the non-alkylated structural analogs, presumably due to a steric effect.

原文???core.languages.en_GB???
頁(從 - 到)753-759
頁數7
期刊Journal of the Chinese Chemical Society
45
發行號6
DOIs
出版狀態已出版 - 1998

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