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- Title
Synthesis of Ni(dvtms) and Ni(CO)<sub>3</sub> Complexes Ligated by an Isolable Two-Coordinate Cyclic Alkylsilylene.
- Authors
Shunya Abe; Tomoyuki Kosai; Tomohiro Iimura; Takeaki Iwamoto
- Abstract
Ni(CO)3 complexes ligated by an isolable cyclic (alkyl)(amino)silylene (CAASi) or an isolable cyclic dialkylsilylene (CDASi) were synthesized by the reaction of the corresponding Ni(dvtms) complex (dvtms = 1,1,3,3-tetramethyl-1,3-divinyldisiloxane) with CO to estimate the donor strengths of CAASi and CDASi. The CO stretching frequencies (Tolman electronic parameters, TEP) of the Ni(CO)3 complexes indicate that the net donating ability of CDASi and CAASi to Ni(CO)3 are almost the same and in between PPh3 and P(tBu)3. The DFT calculations suggested that the TEP values are mainly correlated with the energy level of the lone pair orbital of the ligand but not strongly associated with those of the vacant p-accepting orbitals.
- Subjects
NONBONDING electron pairs; SILYLENES
- Publication
European Journal of Inorganic Chemistry, 2020, Vol 2020, Issue 27, p2651
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202000360