Chemistry of Reactive Organometallic Compounds at Low Temperatures and High Pressures:  Reactions of M(CO)6(M = Cr, Mo, W), (η6-C6H3Me3)M(CO)3(M = Cr and Mo), and W(CO)5CS with H2and N2in Polyethylene Matrices

1998 ◽  
Vol 17 (13) ◽  
pp. 2730-2737 ◽  
Author(s):  
Simon E. J. Goff ◽  
Trevor F. Nolan ◽  
Michael W. George ◽  
Martyn Poliakoff
Keyword(s):  
Low Temperatures ◽  
High Pressures ◽  
Organometallic Compounds

Discrepancies between shock tube and rapid compression machine ignition at low temperatures and high pressures

Shock Waves ◽  
2009 ◽  
pp. 739-744 ◽  
Author(s):  
E.L. Petersen ◽  
M. Lamnaouer ◽  
J. de Vries ◽  
H. Curran ◽  
J. Simmie ◽  
...  
Keyword(s):  
Shock Tube ◽  
Low Temperatures ◽  
High Pressures ◽  
Rapid Compression Machine ◽  
Rapid Compression

The Reactions of Organometallic Compounds Involving Silicon. Reactions of Triphenyl-, Diphenylmethyl-, and Phenyldimethylsilyl-lithium with 9-Phenylfluorene in Tetrahydrofuran

1972 ◽  
Vol 50 (23) ◽  
pp. 3761-3766 ◽  
Author(s):  
M. A. Hamid
Keyword(s):  
Low Temperatures ◽  
Initial Rate ◽  
Organometallic Compounds ◽  
Initial Reactant ◽  
Thermodynamic Constants ◽  
Rate Of Reaction ◽  
Stop Flow

Triphenyl-, diphenylmethyl-, and phenyldimethylsilyl-lithium react very rapidly with 9-phenylfluorene in tetrahydrofuran (THF) but the reaction can be followed spectroscopically using the stop-flow technique at low temperatures. The order of reaction, found from the dependence of the initial rate of reaction on the initial reactant concentrations, is unity in both 9-phenylfluorene and the relevant organosilyl-lithium reagent. The thermodynamic constants of activation for the reaction between 9-phenylfluorene and triphenylsilyl-lithium (Ph3SiLi), diphenylmethylsilyl-lithium (Ph2MeSiLi), and phenyldimethylsilyl-lithium (PhMe2SiLi), respectively, are: ΔH≠ = 4.5, 4.0, and 4.0 kcal mol−1; ΔG≠ = 13.0, 12.5, and 12.5 kcal mol−1; ΔS≠ = −34.9, −34.8, and −34.9 cal mol−1 deg−1

Sign in / Sign up

Export Citation Format

Share Document