Synthesis, crystal structure and magnetic properties of an alternating manganes...

• Autor(es): Silva, Manuela Ramos ; Beja, Ana Matos ; Paixão, José António ; Martín-Gil, Jesus
• Data: 2006
• Identificador Persistente: http://hdl.handle.net/10316/4401
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Mn(ii) complexes; Dimethylglycine; X-ray structure; Antiferromagnetic interaction
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

A new 1D complex has been prepared and characterized. X-ray single crystal structure confirms that the Mn(II) ions assemble in alternating chains with Mn-Mn distances of 3.8432(13) and 4.4428(14) Å. A 3D network of hydrogen bonds links the chains together. The temperature dependence of the magnetic susceptibility reveals that this compound undergoes a magnetic transition and exhibits an antiferromagnetic interaction in the low-temperature phase with two alternating exchange interactions of -2.32(1) and -5.55(1) cm-1. http://www.sciencedirect.com/science/article/B6WM2-4JKC5PW-3/1/57fbdb3ac410627d046c6e4fdf2f0e39