Group 11 m -Terphenyl Complexes Featuring Metallophilic Interactions.

Autor: Liu Y; School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K., Taylor LJ; School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K., Argent SP; School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K., McMaster J; School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K., Kays DL; School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, U.K.
Jazyk: angličtina
Zdroj: Inorganic chemistry [Inorg Chem] 2021 Jul 19; Vol. 60 (14), pp. 10114-10123. Date of Electronic Publication: 2021 Jul 01.
DOI: 10.1021/acs.inorgchem.0c03623
Abstrakt: A series of group 11 m -terphenyl complexes have been synthesized via a metathesis reaction from the iron(II) complexes (2,6-Mes 2 C 6 H 3 ) 2 Fe and (2,6-Xyl 2 C 6 H 3 ) 2 Fe (Mes = 2,4,6-Me 3 C 6 H 2 ; Xyl = 2,6-Me 2 C 6 H 3 ). [2,6-Mes 2 C 6 H 3 M] 2 ( 1 , M = Cu; 2 , M = Ag; 6 , M = Au) and [2,6-Xyl 2 C 6 H 3 M] 2 ( 3 , M = Cu; 4 , M = Ag) are dimeric in the solid state, although different geometries are observed depending on the ligand. These complexes feature short metal-metal distances in the expected range for metallophilic interactions. While 1 - 4 are readily isolated using this metathetical route, the gold complex 6 is unstable in solution at ambient temperatures and has only been obtained in low yield from the decomposition of (2,6-Mes 2 C 6 H 3 )Au·SMe 2 ( 5 ). NMR spectroscopic measurements, including diffusion-ordered spectroscopy, suggest that 1 - 4 remain dimeric in a benzene- d 6 solution. The metal-metal interactions have been examined computationally using the Quantum Theory of Atoms in Molecules and by an energy decomposition analysis employing natural orbitals for chemical valence.
Databáze: MEDLINE