Synthesis, Reactivity, and Complexation with Fe(0) of a Tight-bite Bis(N-heterocyclic silylene)

Chemistry. 2024 Mar 17:e202400389. doi: 10.1002/chem.202400389. Online ahead of print.ABSTRACTThe synthesis, reactivity, and complexation with Fe(0) precursor of a tight-bite bis(N-heterocyclic silylene) (bis(NHSi)) ligand 1 are reported. The reaction of 1 with p-toluidine led to the activation of both N-H bonds across Si(II) atoms to afford a rare four-membered heterocyclic cyclodisilazane 2, with hydride substituents attached to five-coordinate Si atoms. A 1:2 reaction of 1 with Fe(CO)5 led to an intriguing dinuclear complex 3 featuring a five-membered (N-Si-Fe-Fe-Si) ring with a Fe-Fe bond distance of 2.6892(13) Å. All compounds (1-3) were thoroughly characterized by various spectro-scopic methods and X-ray diffraction studies conclusively established their molecular structures. DFT calculations were carried out to shed light on bonding and energetic aspects in 1-3.PMID:38494463 | DOI:10.1002/chem.202400389

Source: Chemistry - March 18, 2024 Category: Chemistry Authors: Zohreh Hendi Madhusudan K Pandey Katharina Rachuy Mukesh K Singh Regine Herbst-Irmer Dietmar Stalke Herbert W Roesky Source Type: research