TY - JOUR
T1 - Magnetic properties of cyano-bridged Ln3+-M3+ complexes. Part I
T2 - Trinuclear complexes (Ln3+ = La, Ce, Pr, Nd, Sm; M3+ = FeLS, Co) with bpy as blocking ligand
AU - Figuerola, Albert
AU - Ribas, Joan
AU - Llunell, Miquel
AU - Casanova, David
AU - Maestro, Miguel
AU - Alvarez, Santiago
AU - Diaz, Carmen
PY - 2005/10/3
Y1 - 2005/10/3
N2 - The reaction of Ln(NO3)3(aq) with K 3[Fe(CN)6] or K3[Co(CN)6] and 2,2′-bipyridine in water/ethanol led to eight trinuclear complexes: trans-[M(CN)4(μ-CN)2{Ln(H2O) 4(bpy)2}2][M(CN)6]·8H 2O (M = Fe3+ or Co3+, Ln = La3+, Ce3+, Pr3+, Nd3+, and Sm3+). The structures for the eight complexes [La2Fe] (1), [Ce2Fe] (2), [Pr2Fe] (3), [Nd2Fe] (4), [Ce2Co] (5), [Pr2Co] (6), [Nd2Co] (7), and [Sm2Co] (8) have been solved; they crystallize in the triclinic space group P1 and are isomorphous. They exhibit a supramolecular 3D architecture through hydrogen bonding and π-π stacking interactions. A stereochemical study of the nine-vertex polyhedra of the lanthanide ions, based on continuous shape measures, is presented. No significant magnetic interaction was found between the lanthanide(III) and the iron(III) ions.
AB - The reaction of Ln(NO3)3(aq) with K 3[Fe(CN)6] or K3[Co(CN)6] and 2,2′-bipyridine in water/ethanol led to eight trinuclear complexes: trans-[M(CN)4(μ-CN)2{Ln(H2O) 4(bpy)2}2][M(CN)6]·8H 2O (M = Fe3+ or Co3+, Ln = La3+, Ce3+, Pr3+, Nd3+, and Sm3+). The structures for the eight complexes [La2Fe] (1), [Ce2Fe] (2), [Pr2Fe] (3), [Nd2Fe] (4), [Ce2Co] (5), [Pr2Co] (6), [Nd2Co] (7), and [Sm2Co] (8) have been solved; they crystallize in the triclinic space group P1 and are isomorphous. They exhibit a supramolecular 3D architecture through hydrogen bonding and π-π stacking interactions. A stereochemical study of the nine-vertex polyhedra of the lanthanide ions, based on continuous shape measures, is presented. No significant magnetic interaction was found between the lanthanide(III) and the iron(III) ions.
UR - http://www.scopus.com/inward/record.url?scp=26944451983&partnerID=8YFLogxK
U2 - 10.1021/ic050648i
DO - 10.1021/ic050648i
M3 - Article
C2 - 16180855
AN - SCOPUS:26944451983
SN - 0020-1669
VL - 44
SP - 6939
EP - 6948
JO - Inorganic chemistry
JF - Inorganic chemistry
IS - 20
ER -