Matches in SemOpenAlex for { <https://semopenalex.org/work/W2091718134> ?p ?o ?g. }
- W2091718134 endingPage "8175" @default.
- W2091718134 startingPage "8162" @default.
- W2091718134 abstract "The reaction of Cp‘2Zr(OtBu)Me (Cp‘ = C5H4Me) and [Ph3C][B(C6F5)4] yields the base-free complex [Cp‘2Zr(OtBu)][B(C6F5)4] (6), which exists as Cp‘2Zr(OtBu)(ClR)+ halocarbon adducts in CD2Cl2 or C6D5Cl solution. Addition of alkenes to 6 in CD2Cl2 solution at low temperature gives equilibrium mixtures of Cp‘2Zr(OtBu)(alkene)+ (12a−l), 6, and free alkene. The NMR data for 12a−l are consistent with unsymmetrical alkene bonding and polarization of the alkene CC bond with positive charge buildup at Cint and negative charge buildup at Cterm. These features arise due to the lack of d−π* back-bonding. Equilibrium constants for alkene coordination to 6 in CD2Cl2 at −89 °C, Keq = [12][6]-1[alkene]-1, vary in the order: vinylferrocene (4800 M-1) ≫ ethylene (7.0) ≈ α-olefins > cis-2-butene (2.2) > trans-2-butene (<0.1). Alkene coordination is inhibited by sterically bulky substituents on the alkene but is greatly enhanced by electron-donating groups and the β-Si effect. Compounds 12a−l undergo two dynamic processes: reversible alkene decomplexation via associative substitution of a CD2Cl2 molecule, and rapid rotation of the alkene around the metal−(alkene centroid) axis." @default.
- W2091718134 created "2016-06-24" @default.
- W2091718134 creator A5040995081 @default.
- W2091718134 creator A5058003131 @default.
- W2091718134 date "2006-06-01" @default.
- W2091718134 modified "2023-10-17" @default.
- W2091718134 title "Nonchelated d<sup>0</sup> Zirconium−Alkoxide−Alkene Complexes" @default.
- W2091718134 cites W1501319738 @default.
- W2091718134 cites W1603380508 @default.
- W2091718134 cites W187830475 @default.
- W2091718134 cites W1964620959 @default.
- W2091718134 cites W1965900761 @default.
- W2091718134 cites W1966628106 @default.
- W2091718134 cites W1966628683 @default.
- W2091718134 cites W1968884029 @default.
- W2091718134 cites W1978261305 @default.
- W2091718134 cites W1978423503 @default.
- W2091718134 cites W1978711031 @default.
- W2091718134 cites W1983787579 @default.
- W2091718134 cites W1984416584 @default.
- W2091718134 cites W1985379958 @default.
- W2091718134 cites W1986227639 @default.
- W2091718134 cites W1986989732 @default.
- W2091718134 cites W1987901467 @default.
- W2091718134 cites W1991134885 @default.
- W2091718134 cites W1991301071 @default.
- W2091718134 cites W1991704056 @default.
- W2091718134 cites W1993022934 @default.
- W2091718134 cites W1995277252 @default.
- W2091718134 cites W1996396613 @default.
- W2091718134 cites W1996728200 @default.
- W2091718134 cites W1997374390 @default.
- W2091718134 cites W1999181714 @default.
- W2091718134 cites W1999233351 @default.
- W2091718134 cites W2001174694 @default.
- W2091718134 cites W2001285583 @default.
- W2091718134 cites W2001641139 @default.
- W2091718134 cites W2002006053 @default.
- W2091718134 cites W2003162132 @default.
- W2091718134 cites W2004461992 @default.
- W2091718134 cites W2004667219 @default.
- W2091718134 cites W2004679088 @default.
- W2091718134 cites W2006518859 @default.
- W2091718134 cites W2009517581 @default.
- W2091718134 cites W2012005461 @default.
- W2091718134 cites W2012982153 @default.
- W2091718134 cites W2014259459 @default.
- W2091718134 cites W2014410311 @default.
- W2091718134 cites W2016191867 @default.
- W2091718134 cites W2019491151 @default.
- W2091718134 cites W2023505289 @default.
- W2091718134 cites W2025232993 @default.
- W2091718134 cites W2025764982 @default.
- W2091718134 cites W2027475027 @default.
- W2091718134 cites W2028058466 @default.
- W2091718134 cites W2028062279 @default.
- W2091718134 cites W2029240009 @default.
- W2091718134 cites W2030774131 @default.
- W2091718134 cites W2034329598 @default.
- W2091718134 cites W2036620431 @default.
- W2091718134 cites W2037513730 @default.
- W2091718134 cites W2039006756 @default.
- W2091718134 cites W2040287293 @default.
- W2091718134 cites W2043054940 @default.
- W2091718134 cites W2043929175 @default.
- W2091718134 cites W2046439872 @default.
- W2091718134 cites W2046482418 @default.
- W2091718134 cites W2047626489 @default.
- W2091718134 cites W2050474136 @default.
- W2091718134 cites W2052814100 @default.
- W2091718134 cites W2052876515 @default.
- W2091718134 cites W2053864103 @default.
- W2091718134 cites W2054720612 @default.
- W2091718134 cites W2058744857 @default.
- W2091718134 cites W2059033972 @default.
- W2091718134 cites W2061354524 @default.
- W2091718134 cites W2061818901 @default.
- W2091718134 cites W2064930347 @default.
- W2091718134 cites W2069427677 @default.
- W2091718134 cites W2070858761 @default.
- W2091718134 cites W2071071158 @default.
- W2091718134 cites W2072313401 @default.
- W2091718134 cites W2072805410 @default.
- W2091718134 cites W2074880479 @default.
- W2091718134 cites W2076272214 @default.
- W2091718134 cites W2078609511 @default.
- W2091718134 cites W2080027246 @default.
- W2091718134 cites W2081026215 @default.
- W2091718134 cites W2083924613 @default.
- W2091718134 cites W2085086397 @default.
- W2091718134 cites W2087478116 @default.
- W2091718134 cites W2088552986 @default.
- W2091718134 cites W2089480709 @default.
- W2091718134 cites W2090925108 @default.
- W2091718134 cites W2090968967 @default.
- W2091718134 cites W2092866252 @default.
- W2091718134 cites W2093045879 @default.
- W2091718134 cites W2093051184 @default.