Synthesis of Ni(dvtms) and Ni(CO)3 Complexes Ligated by an Isolable Two-Coordinate Cyclic Alkylsilylene

Shunya Abe, Tomoyuki Kosai, Tomohiro Iimura, Takeaki Iwamoto

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1 Citation (Scopus)


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 π-accepting orbitals.

Original languageEnglish
Pages (from-to)2651-2657
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Issue number27
Publication statusPublished - 2020 Jul 23


  • Density functional calculations
  • Nickel
  • Silicon
  • Silylenes
  • Synthesis design

ASJC Scopus subject areas

  • Inorganic Chemistry


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