RT info:eu-repo/semantics/article
T1 Aryl-nickel and acetylene-nickel(I) complexes
A1 Hernández Vizcaíno, Ma. Elisa
A1 Sáez Sáez, Isabel María
A1 Royo Gracia, Pascual
K1 Aryl-nickel
K1 Acetylene-nickel(I)
K1 Ciencia
K1 Química inorgánica
K1 Science
K1 Chemistry, inorganic
AB Reduction of various pentafluorophenylnickel(II) complexes in the presence of phosphines gives unstable nickel(I) compounds but Ni(C6F5)(CO)2(PPh3)2 is isolated in the presence of CO. Similar NiR(CO)2(PPh3)2 (R = C6F5,C6Cl5, 2,3,5,6-C6Cl4H) are obtained by reaction of the halogenonickel(I) complex with MgRBr or LiR. Reduction of NiX2L2 in the presence of acetylenes gives [NiXL2]2(μ-PhCCR) (R = H, X = Cl and R = Ph, X = Cl, Br) when L = P-n-Bu3 but only NiX(PPh3)3 are recovered when L = PPh3. No reaction with the alkyne is observed for [NiX(PPh3)2]n but [NiCl(PPh3)]n reacts with RCCR′ to give paramagnetic NiCl(PPh3)(CRCR′) (R = Ph, R′= H, COOEt), diamagnetic [NiCl(PPh3)]2(μ-PhCCPh) and cyclotrimerization when R = R′ = COOMe. Chemical and structural behaviour of the new nickel(I) complexes is described.
PB Elsevier
SN 0022-328X
YR 1985
FD 1985
LK http://hdl.handle.net/10017/4792
UL http://hdl.handle.net/10017/4792
LA eng
DS MINDS@UW
RD 27-abr-2024