TY - JOUR
T1 - Low-temperature kinetic NMR studies on the insertion of a single olefin molecule into a Zr-C bond: Assessing the counterion-solvent interplay
AU - Rocchigiani, L.
AU - Ciancaleoni, G.
AU - Zuccaccia, C.
AU - MacChioni, A.
PY - 2011/12/2
Y1 - 2011/12/2
N2 - Sticky counterions: Low‐temperature kinetic NMR studies were performed to determine ΔH≠ and ΔS≠ values for the insertion of a single 2‐methyl‐1‐heptene molecule into a Zr-C bond of [Cp2Zr(η2‐CH2NMePh)][X] (1a: X−=MeB(C6F5)3−, 1b: B(C6F5)4−) in [D8]toluene and a 1:1 mixture of [D8]toluene and [D5]chlorobenzene. Both activation parameters critically depend on the interplay of the counterion and the solvent.
AB - Sticky counterions: Low‐temperature kinetic NMR studies were performed to determine ΔH≠ and ΔS≠ values for the insertion of a single 2‐methyl‐1‐heptene molecule into a Zr-C bond of [Cp2Zr(η2‐CH2NMePh)][X] (1a: X−=MeB(C6F5)3−, 1b: B(C6F5)4−) in [D8]toluene and a 1:1 mixture of [D8]toluene and [D5]chlorobenzene. Both activation parameters critically depend on the interplay of the counterion and the solvent.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-82455219337&partnerID=MN8TOARS
U2 - 10.1002/anie.201105122
DO - 10.1002/anie.201105122
M3 - Article
VL - 50
SP - 11752
EP - 11755
JO - Angewandte Chemie-International Edition
JF - Angewandte Chemie-International Edition
SN - 1433-7851
IS - 49
ER -