Results 331 to 340 of about 11,627,235 (359)

Electronic and steric effects in rollover C-H bond activation

, 2015
Steric and electronic factors in rollover C–H bond activation of substituted 2,2′-bipyridines, mediated by platinum(II), have been investigated by comparing the influence of two substituents, CH3 and CF3, on the progress of the reaction. The substituents
L. Maidich, Gavina Dettori, S. Stoccoro, M. Cinellu, J. Rourke, A. Zucca   +5 more
semanticscholar   +1 more source

Substituent effects on steric strain

Chemical Physics Letters, 2003
Accurate quantum chemical calculations were performed on a series of mono-substituted tetrahedranes and [3]-prismanes by the high-level ab initio G3/B3LYP method. The relative stabilities of substituted tetrahedranes vs. their [3]-prismane analogues and the influence of substitution on steric strain are discussed.
openaire   +3 more sources

steric effects

Catalysis from A to Z, 2020
J. Eppinger
semanticscholar   +1 more source

Steric effects in [2.2]metaparacyclophanes. Steric isotope effect, remote substituent effect on a steric barrier, and other steric phenomena

Journal of the American Chemical Society, 1974
R. A. Barnes, Virgil Boekelheide, S. A. Sherrod, R. Da Costa   +3 more
openaire   +2 more sources

Steric Effect of Methylene Groups. I

Journal of the American Chemical Society, 1945
Richard T. Arnold, Vincent J. Webers, R. M. Dodson   +2 more
openaire   +4 more sources

Concerted steric and electronic effects on α-diimine nickel- and palladium-catalyzed ethylene polymerization and copolymerization.

Science Bulletin, 2020
Qasim Muhammad, Chen Tan, Changle Chen
semanticscholar   +1 more source

Steric effects in polybitniophenes

International Conference on Science and Technology of Synthetic Metals, 1994
G. Zotti, Tiziana Benincori, Giuseppe Zerbi, Elisabetta Brenna, T. Pilatic, Franco Sannicolò, Licia Trimarco, Roberto Todeschini, Giorgio Moro   +8 more
openaire   +2 more sources

Systematic Investigations of Ligand Steric Effects on α-Diimine Nickel Catalyzed Olefin Polymerization and Copolymerization

Organometallics, 2019
Yanfeng Gong, Shuaikang Li, Qi Gong, Shaojie Zhang, Binyuan Liu, Shengyu Dai   +5 more
semanticscholar   +1 more source

Steric effects of phosphorus ligands in organometallic chemistry and homogeneous catalysis

, 1977
C. A. Tolman
semanticscholar   +1 more source

Ligand steric effects on naphthyl-α-diimine nickel catalyzed α-olefin polymerization

Chinese Journal of Polymer Science, 2018
Fuzhou Wang, S. Tian, Ruiping Li, Weimin Li, Changle Chen   +4 more
semanticscholar   +1 more source