Mixing of trans-[Mn(cyclam)Cl2]Cl (cyclam = 1,4,8,11-tetraazacyclotetradecane) and potassium hexacyanochromate (K3[Cr(CN)6]) aqueous solutions instantaneously yields a 1D infinite chain complex {[Mn(cyclam)(l-CN)2Cr(CN)4]H2O}n (1). The crystal structure of 1, crystallizing in the monoclinic system with space group P21/n has been solved from X-ray powder diffraction data following direct space approach and refined by the Rietveld method. The structure analysis of 1 reveals alternating [Cr(CN)6]3 and [Mn(cyclam)]3+ ions generating one-dimensional polymeric (–Cr–CN–Mn–NC–)n chain propagating along the [0 0 1] direction. The coordination environment of both the metal ions, Mn(III) and Cr(III), is octahedral. While a notable distortion in the coordination environment around Mn(III) centers was observed in complex 1, Cr(III) centers have suffered no such distortion. A ferrimagnetic interaction between the heterobimetallic centers was evidenced through variable temperature magnetic susceptibility measurements. The AC susceptibility measurement reveals that the compound 1 undergoes spontaneous ferrimagnetic ordering. Ferrimagnetic ordering has been rarely observed among the cyanobridged compounds in the previous studies.

A cyano-bridged bimetallic ferrimagnet: Synthesis, X-ray structure and magnetic study / R., Sen; A., Bhattacharya; D., Mal; A., Bhattacharjee; Gütlich, P. h.; A. K., Mukherjee; Solzi, Massimo; Pernechele, Chiara; S., Koner. - In: POLYHEDRON. - ISSN 0277-5387. - 29:(2010), pp. 2762-2768. [10.1016/j.poly.2010.06.022]

A cyano-bridged bimetallic ferrimagnet: Synthesis, X-ray structure and magnetic study

SOLZI, Massimo;PERNECHELE, Chiara;
2010-01-01

Abstract

Mixing of trans-[Mn(cyclam)Cl2]Cl (cyclam = 1,4,8,11-tetraazacyclotetradecane) and potassium hexacyanochromate (K3[Cr(CN)6]) aqueous solutions instantaneously yields a 1D infinite chain complex {[Mn(cyclam)(l-CN)2Cr(CN)4]H2O}n (1). The crystal structure of 1, crystallizing in the monoclinic system with space group P21/n has been solved from X-ray powder diffraction data following direct space approach and refined by the Rietveld method. The structure analysis of 1 reveals alternating [Cr(CN)6]3 and [Mn(cyclam)]3+ ions generating one-dimensional polymeric (–Cr–CN–Mn–NC–)n chain propagating along the [0 0 1] direction. The coordination environment of both the metal ions, Mn(III) and Cr(III), is octahedral. While a notable distortion in the coordination environment around Mn(III) centers was observed in complex 1, Cr(III) centers have suffered no such distortion. A ferrimagnetic interaction between the heterobimetallic centers was evidenced through variable temperature magnetic susceptibility measurements. The AC susceptibility measurement reveals that the compound 1 undergoes spontaneous ferrimagnetic ordering. Ferrimagnetic ordering has been rarely observed among the cyanobridged compounds in the previous studies.
2010
A cyano-bridged bimetallic ferrimagnet: Synthesis, X-ray structure and magnetic study / R., Sen; A., Bhattacharya; D., Mal; A., Bhattacharjee; Gütlich, P. h.; A. K., Mukherjee; Solzi, Massimo; Pernechele, Chiara; S., Koner. - In: POLYHEDRON. - ISSN 0277-5387. - 29:(2010), pp. 2762-2768. [10.1016/j.poly.2010.06.022]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2321663
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 12
social impact