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trans-Bis[1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene]dichloronickel(II): synthesis and structure.
Autorzy
Rok wydania
2007
Czasopismo
Collection of Czechoslovak Chemical Communications
Numer woluminu
72
Strony
609-617
DOI
10.1135/cccc20070609
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
trans -Bis[1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene]dichloronickel(II), [NiCl<sub>2</sub>(SIMes)<sub>2</sub>], was synthesized in a one-pot reaction of fluorenyllithium with nickel(II) bromide followed by the addition of 1,3-bis(2,4,6-trimethylphenyl)imidazolidinium chloride. Labile difluorenyl- nickel, formed in the course of the reaction, behaves differently than nickelocene and indenocene in analogous reactions. It exchanges both fluorenyl ligands giving the title compound. The crystal and molecular structure of this compound have been determined by single-crystal X-ray diffraction. The compound crystallizes in the monoclinic crystal system with square-planar geometry around the central nickel atom.
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