Results 271 to 280 of about 13,761,270 (353)

Steric Effect of Carboxylate Ligands on Pd-Catalyzed Intramolecular C(sp2 )-H and C(sp3 )-H Arylation Reactions.

Angewandte Chemie, 2018
A bulky carboxylic acid bearing three cyclohexylmethyl substituents at the α-position, namely, tri(cyclohexylmethyl)acetic acid, is demonstrated to act as an efficient ligand source in Pd-catalyzed intramolecular C(sp2 )-H and C(sp3 )-H arylation ...
Yutaka Tanji, Naoya Mitsutake, Tetsuaki Fujihara, Y. Tsuji   +3 more
semanticscholar   +1 more source

Steric Effects and Solvent Effects in Ionic Reactions

Science, 2002
Rates of S N 2 reactions of chloride ion with methyl- and tert -butyl–substituted chloroacetonitrile were measured by using Fourier transform–ion cyclotron resonance spectrometry to follow the isotopic exchange reaction.
Colleen K, Regan, Stephen L, Craig, John I, Brauman   +2 more
openaire   +2 more sources

Regulating Steric Hindrance of Porous Organic Polymers in Composite Solid-State Electrolytes to Induce the Formation of LiF-Rich SEI in Li-Ion Batteries.

Angewandte Chemie, 2023
Lithium fluoride (LiF) at the solid electrolyte interface (SEI) contributes to the stable operation of polymer-based solid-state lithium metal batteries.
Zishao Zhao, Xu Zhou, Biao Zhang, Fenfen Huang, Yan Wang, Zengsheng Ma, Jun Liu   +6 more
semanticscholar   +1 more source

Sterically crowded aryloxide compounds of aluminum: electronic and steric effects

Organometallics, 1991
The mononuclear, four-coordinate aluminum compounds AlR 2 (BHT)L and AlR(BHT) 2 L [R=Me, Et; BHT=2,6-di-tert-butyl-4-methylphenoxide; L=2-Mepy, 4-Mepy, 2,6-Me 2 py, CH 3 CN, N(C 2 H 4 ) 3 CH, HNEt 2 , HN i Bu 2 , H 2 N t Bu,H 2 N n Bu, NH 3 , py•O] are obtained when AlR 3 is treated with the correct molar equivalent of BHT-H and the appropriate Lewis ...
Matthew D. Healy, Joseph W. Ziller, Andrew R. Barron   +2 more
openaire   +1 more source

Remote Control by Steric Effects

Science, 2014
A rhodium-catalyzed reaction places a silicon substituent on the site farthest away from the largest group present on an aromatic ring. [Also see Research Article by Cheng and Hartwig ]
Mamoru Tobisu, Naoto Chatani
openaire   +1 more source

Enhancing the Selectivity of H2O2 Electrogeneration by Steric Hindrance Effect.

ACS Applied Materials and Interfaces, 2018
Selective hydrogen peroxide (H2O2) electrogeneration by oxygen reduction reaction (ORR) is an efficient and promising synthetic method for H2O2 production.
X. Xiao, Tianjiao Wang, J. Bai, Fumin Li, Tianyi Ma, Yu Chen   +5 more
semanticscholar   +1 more source

Unveiling unique steric effect of threonine additive for highly reversible Zn anode

Nano Energy, 2022
Zhenyu Miao, Qilu Liu, Wangran Wei, Xiaoru Zhao, Mingjie Du, Houzhen Li, Feng Zhang, Min Hao, Zihao Cui, Y. Sang, Xiwei Wang, Hong Liu, Shuhua Wang   +12 more
semanticscholar   +1 more source

Exploiting the Steric Effect and Low Dielectric Constant of 1,2-Dimethoxypropane for 4.3 V Lithium Metal Batteries

ACS Energy Letters, 2022
Eunseok Park, Jongseok Park, Kyunam Lee, Yan Zhao, Tianhong Zhou, G. Park, Min-Gi Jeong, Min-Kwan Choi, Dong-Joo Yoo, Hun‐Gi Jung, Ali Coskun, J. Choi   +11 more
semanticscholar   +1 more source

σ‐Correlations and steric effects

Organic Magnetic Resonance, 1982
AbstractCarbon‐1 shifts in 1‐dimethylimino‐3‐dimethylamino‐1‐(4‐substituted)phenylprop‐2‐ene perchlorates show high correlation and negative dependence v. a σ set having high f character, similar to α and carbonyl carbon shifts in 4‐substituted styrenes and N,N‐dimethylbezamides, respectively.
S. N. Balasubrahmanyam, I. M. Mallick
openaire   +1 more source

Copper(I)-Pyrazolate Complexes as Solid-State Phosphors: Deep-Blue Emission through a Remote Steric Effect.

Journal of the American Chemical Society, 2022
Yuichiro Watanabe, Benjamin M. Washer, M. Zeller, S. Savikhin, L. Slipchenko, Alexander Wei   +5 more
semanticscholar   +1 more source