TY - JOUR
T1 - A versatile bulky bidentate ligand for both main group and transition metals. Derivatives of lithium, potassium, magnesium, chromium, manganese, and cobalt containing the C(SiMe3)2(SiMe2C5H4N-2) group
AU - Al-Juaid, Salih S.
AU - Eaborn, Colin
AU - Hitchcock, Peter B.
AU - Hill, Michael S.
AU - Smith, J. Smith
PY - 2000/8/7
Y1 - 2000/8/7
N2 - The compound HC(SiMe3)2(SiMe2C5H4N-2), 1, reacts with methyllithium in THF to give a good yield of the lithium derivative Li{C(SiMe3)2(SiMe2C5H 4N-2)}, which has been isolated as a molecular THF adduct 2. This reacts (a) with KOtBu to give K{C(SiMe3)2(SiMe2C5H 4N-2)}, 3, which crystallizes in a solvent-free ionic lattice, (b) with MgBr2 to give the Grignard reagent Mg(THF)Br{C(SiMe3)2(SiMe2C5H 4N-2)}, 4, and (c) with CrCl2 to give Cr{C(SiMe3)2(SiMe2C5H 4N-2)}2, 5, along with the halide-bridged Grignard reagent analogue [Cr(μ-Cl)-{C(SiMe3)2(SiMe2C 5H4N-2)}]2·THF, 6, which crystallizes in a lattice containing alternate THF-free molecules (6a) and molecules (6b) with coordinated THF. The reactions of 2 with MnCl2 and CoBr2 give the halide-bridged ate complexes [Li(THF)3(μ-Cl)MnCl{C(SiMe3)2(SiMe 2C5H4N-2)}], 7, and [Li(THF)2(μ-Br)2Co{C(SiMe3) 2(SiMe2C5H4N-2)}], 8, respectively.
AB - The compound HC(SiMe3)2(SiMe2C5H4N-2), 1, reacts with methyllithium in THF to give a good yield of the lithium derivative Li{C(SiMe3)2(SiMe2C5H 4N-2)}, which has been isolated as a molecular THF adduct 2. This reacts (a) with KOtBu to give K{C(SiMe3)2(SiMe2C5H 4N-2)}, 3, which crystallizes in a solvent-free ionic lattice, (b) with MgBr2 to give the Grignard reagent Mg(THF)Br{C(SiMe3)2(SiMe2C5H 4N-2)}, 4, and (c) with CrCl2 to give Cr{C(SiMe3)2(SiMe2C5H 4N-2)}2, 5, along with the halide-bridged Grignard reagent analogue [Cr(μ-Cl)-{C(SiMe3)2(SiMe2C 5H4N-2)}]2·THF, 6, which crystallizes in a lattice containing alternate THF-free molecules (6a) and molecules (6b) with coordinated THF. The reactions of 2 with MnCl2 and CoBr2 give the halide-bridged ate complexes [Li(THF)3(μ-Cl)MnCl{C(SiMe3)2(SiMe 2C5H4N-2)}], 7, and [Li(THF)2(μ-Br)2Co{C(SiMe3) 2(SiMe2C5H4N-2)}], 8, respectively.
UR - http://www.scopus.com/inward/record.url?scp=0001585089&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0001585089
SN - 0276-7333
VL - 19
SP - 3224
EP - 3231
JO - Organometallics
JF - Organometallics
IS - 16
ER -