Asymmetric Ligand Field Effects in Electron-Rich Heterometallic Extended Metal Atom Chain Compounds.

ABSTRACT: In heterometallic systems, electron donation from the ligands may influence the metal atoms in either a symmetric or asymmetric way, with the expected case being that the more electronegative metal is favored. Here, we describe a systematic study of heterometallic compounds where this expectation is not observed. In this study, we use a modification of the symmetric 2,2'-dipyridylamine (dpa) ligand with electron donating ethyl groups, the 4,4'-diethyl-2,2'-dipyridylamine ligand (dedpa), to prepare heterometallic extended metal atom chain (HEMAC) complexes with formula Mo₂M'(dedpa)₄Cl₂ (M' = Cr, Mn, Fe, Co, Ni). The effects of the electron donating substituents were studied through techniques including crystallography, magnetometry, cyclic voltammetry, EPR,

SUBMITTER: Walde RK 

PROVIDER: S-EPMC12642394 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature