Crystal Structures, Magnetic Properties, and Redox Behaviors of Carboxylato-Bridged Mn(II) Complexes with Ditopic Ligands Featuring N3-Coordination Sites

被引：0

作者：

Sugiyama, Junya ^{[1
]}

Umemoto, Yusuke ^{[1
]}

Sato, Sota ^{[1
]}

Yoneda, Ko ^{[1
]}

Koikawa, Masayuki ^{[1
]}

机构：

[1] Saga Univ, Fac Sci & Engn, Dept Chem & Appl Chem, Honjo 1, Saga 8408502, Japan

来源：

CHEMISTRY-SWITZERLAND | 2024年 / 6卷 / 04期

关键词：

dinuclear complex; tetranuclear complex; macrocyclic structure; carboxylato bridge; manganese; crystal structure; magnetic property; redox chemistry; catalase activity; DINUCLEAR MANGANESE(II) COMPLEX; CATALASE ACTIVITY; HYDROLYSIS; DISTANCE; MODEL; WATER;

D O I：

10.3390/chemistry6040036

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Carboxylato-bridged dinuclear and tetranuclear Mn(II) complexes 1-3 with ditopic ligands featuring two N-3-terminal coordination sites connected by hexyl (tphn), octyl (tpon), and p-xylyl (tpxn) linkers have been synthesized and characterized through X-ray single-crystal structure analyses, infrared spectroscopy, and elemental analyses. Complex 1 is a mu-fluorido-bis-mu-acetato dinuclear Mn(II) complex where the ligand tphn coordinates to both terminal sides of a dinuclear Mn unit. In contrast, complexes 2 and 3 are tetranuclear Mn(II) complexes with a macrocyclic structure, in which two dinuclear Mn units are linked by ligands tpon or tpxn. The redox behaviors of 1 and 2 were elucidated by cyclic voltammetry, revealing two metal-centered redox processes corresponding to Mn-2(II,II)/Mn-2(II,III) and Mn-2(II,III)/Mn-2(III,III).

引用

页码：601 / 617

页数：17