Synthesis, crystal structures and magnetic properties of two new hetero-bimetallic assemblies

Guangming Li, Takashiro Akitsu, Osamu Sato, Yasuaki Einaga

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Two new cyanide-bridged 3d-4f hetero-dinuclear complexes, namely Ln(DMF)4(H2O)3(μ-CN)Co(CN)5 · H2O (Ln=Nd (1) and Gd (2), DMF=N,N-dimethylformamide), were synthesized by the facile reaction of LnCl3.6H2O and K3Co(CN)6. Characterization includes microanalysis, IR spectrometric identifications, X-ray crystallographic analysis and magnetic properties. Both 1 and 2 crystallize in the centrosymmetric monoclinic space group P21/n (No. 14) with Z=4. The lanthanide(III) ions are eight-coordinate in a square-antiprism arrangement, while cobalt(III) ions are six-coordinate in an octahedral environment in each complex. A cyanide bridge links an LN(III) ion to a Co(III) ion. Molecules in the crystal cell of each compound are held together by van der Waals forces and a network of hydrogen bonding. Magnetic analysis shows that antiferromagnetic interactions are observed below 7 K for both 1 and 2, which are attributed to intermolecular interactions between the Ln(III) ions in the network through hydrogen bonds. This series of compounds may be of importance in photo-induced magnetism because of the cyanide bridge between 3d and 4f metals.

Original languageEnglish
Pages (from-to)189-198
Number of pages10
JournalJournal of Coordination Chemistry
Volume57
Issue number3
DOIs
Publication statusPublished - Feb 15 2004
Externally publishedYes

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assemblies
Magnetic properties
Crystal structure
Ions
magnetic properties
Cyanides
cyanides
crystal structure
synthesis
ions
Hydrogen bonds
Dimethylformamide
Lanthanoid Series Elements
Van der Waals forces
Microanalysis
Magnetism
Cobalt
Rare earth elements
microanalysis
cobalt

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Synthesis, crystal structures and magnetic properties of two new hetero-bimetallic assemblies. / Li, Guangming; Akitsu, Takashiro; Sato, Osamu; Einaga, Yasuaki.

In: Journal of Coordination Chemistry, Vol. 57, No. 3, 15.02.2004, p. 189-198.

Research output: Contribution to journalArticle

Li, Guangming ; Akitsu, Takashiro ; Sato, Osamu ; Einaga, Yasuaki. / Synthesis, crystal structures and magnetic properties of two new hetero-bimetallic assemblies. In: Journal of Coordination Chemistry. 2004 ; Vol. 57, No. 3. pp. 189-198.
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