A 2D Cyano‐ and Oxamidato‐Bridged Heterotrimetallic Cr^III‐Cu^II‐Gd^III Complex

Abstract

Ion bridge: A unique mixed heterotrimetallic coordination polymer (depicted) with a bridging [Cr(CN)6]3− ion is synthesized by the slow diffusion of a macrocyclic oxamido‐CuII complex, and gadolinium trichloride into potassium hexacyanochromate(III). Intermetallic ferromagnetic coupling is operative within the 2D layer, giving rise to an S=7 ground state. C=black, Cr=pink, Cu=blue, Gd=green, N=violet, O=red.

Magnetic molecular materials with paramagnetic lanthanide ions

“…Inserting [M(CN) 6 ] 3− ions to the 3d-4f compounds can form a few 3d-3d'-4f coordination polymers, which used the oligonuclear 3d-4f complexes as nodes [77][78][79] . (CN) 6 [80] .…”

A novel 2D oxalate- and dissymmetrical oxamidato-bridged heterometallic CuII–GdIII complex: Synthesis, crystal structure and magnetic properties

“…Along this line, the heterospin systems of macrocyclic oxamides have been extensively investigated [23][24][25]. However, only a few kinds of coordination polymers based on macrocyclic oxamidate compound [Cu(L)] and Ln 3+ have been reported [26][27][28][29]. So it is significant to elucidate the magnetic coupling between 3d and 4f metal ions via oxamidate bridges.…”

“…Calc. for C26 H 44 Cu 2 Gd 2-N 6 O 29 : C, 23.20; H, 3.29; N, 6.24. Found: C, 23.03; H, 3.11; N, 6.19%.…”

Dinuclear Ru–Cu Complexes: Electronic Characterisation and Application to Dye‐Sensitised Solar Cells

“…Numerous studies have also been carried out by other groups, particularly Tang et al, incorporating this ligand into other heteropolynuclear complexes containing a wide range of first-row transition metals and lanthanides, yielding interesting magnetic properties. [12][13][14][15][16][17][18] In this report, we extend this approach to prepare dinuclear Cu-Ru complexes with acid-and ester-substituted (bipyridyl)Ru fragments, with the former suitable for binding to TiO 2 , and investigate application to dye-sensitised solar cells. This has allowed investigation of dinuclear complexes that are smaller than the typical dinuclear systems containing two platinum group metal complexes.…”