Synthesis of Ru2Br(μ-O2CC6H4–R)4 (R = o-Me, m-Me, p-Me) Using Microwave Activation: Structural and Magnetic Properties

Inorganics

Patricia Delgado-Martínez¹  Alejandra Elvira-Bravo¹  Rodrigo González-Prieto¹  José L. Priego¹  Reyes Jimenez-Aparicio¹ 

[1] Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria, E-28040 Madrid, Spain; E-Mails:

关键词: diruthenium;    microwave;    one-dimensional;    paddlewheel;    magnetism;    dinuclear;   

DOI  :  10.3390/inorganics2030524

来源: mdpi

【 摘 要 】

New bromidotetracarboxylatodiruthenium(II,III) compounds of the type [Ru₂Br(μ-O₂CC₆H₄–R)₄]_n [R = o-Me (1), m-Me (2), p-Me (3)] have been prepared using microwave-assisted methods. Syntheses by means of solvothermal and conventional activations have also been carried out to compare different preparation methods. The crystal structure determination of complexes 1–3 is also described. All compounds display a typical carboxylate-bridged paddlewheel-type structure with the metal atoms connected by four bridging carboxylate ligands. The axial bromide ligands connect the dimetallic units giving one-dimensional zigzag chains. The magnetic properties of all compounds have also been analyzed. Weak antiferromagnetic intermolecular interactions mediated by the bromide ligands and an appreciable zero field splitting are calculated in the fits of the magnetic data of these complexes.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.