Synthesis and Structure of Unprecedented Carboxylate-bridged Heteronuclear Cr(III)-Nd(III) Complex

Abstract

Chromium(III)-lanthanide(III) hetero-polynuclear complex was synthesized and characterized. The structure of [Cr2Nd3(μ-OOCCH3)6(μ-OH)6(H2O)9]Br3·NaBr·8H2O (1) was determined by X-ray analysis.

Pentanuclear {Cr2Ln3} (Ln = Dy, Tb) Heterometallic Clusters Based on an Amino Acid Ligand: Slow Relaxation of Magnetization and Substitution Reactions

“…[ang]Dy ··· Cr ··· Dy and [ang]Cr ··· Dy ··· Dy are in the range of 70.94(2)–70.99(2) and 54.45(2)–54.66(2)°, respectively. All are consistent with values reported in the literature for other {Ln 3 Cr 2 } compounds 12c,19,20…”

Mixed Transition‐Metal—Lanthanide Complexes at Higher Oxidation States: Heteronuclear CeIV–MnIV Clusters

“…The CeO bond lengths are within the expected range for octa‐ and enneacoordinate Ce IV 10c. The Ce 3 Mn 2 trigonal bipyramidal topology has been observed in mixed 4f/3d chemistry only once before, in a Nd III 3 Cr III 2 complex that contains hydroxide bridges, rather than oxide ones as in 2 12a…”

Novel bimetallic Cr3Yb3 mixed salt containing a 3d-4f heterometallic Cr2Yb3 cluster

“…Each Yb atom is connected to both Cr atoms via both μ hydroxy and μ acetato bridges, respectively. Six oxygen atoms of OH bridging ligands (O(9) [10]. In addition, the [Cr(CN) 6 ] 3-ion as a μ 2 bridge linked the adjacent 3d-4f heterometallic cationic clusters, re (14)) with a dis tance of 2.902 Å and resulting in an S shaped infinite chain as shown in Fig.…”