Results 251 to 260 of about 13,761,270 (353)

A hindrance-plane-hindrance molecular engineering strategy towards self-assembled nanorods for enhanced photodynamic therapy. [PDF]

Nat Commun
Tang Q, Xue B, Jia H, Liu Y, Tang BZ, Feng G.   +5 more
europepmc   +1 more source

Universal scaling law: transcription factors homeostatically control promoter activity. [PDF]

Signal Transduct Target Ther
Gao M, Wu A, Wu M.
europepmc   +1 more source

PEG Surface Modification of Microcrystalline Cellulose@Nanotitanium Dioxide Core-Shell Composite to Improve Sunscreen Performance. [PDF]

ACS Omega
Yu H, Xie J, Yao L, Yang H.
europepmc   +1 more source

Influence of intramolecular interactions and transition state energetics on the strain-promoted azide-alkyne cycloaddition of 2-aminobenzenesulfonamide-containing cyclononynes. [PDF]

RSC Adv
Nakahara K, Kaneda K.
europepmc   +1 more source

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On the origin of the steric effect

Physical Chemistry Chemical Physics, 2012
A quantitative analysis of the steric effect of aliphatic groups was carried out from first principles. An intuitive framework is proposed that allows the separation and straightforward interpretation of two contributors to the steric effect: steric strain and steric shielding (hindrance). When a sterically demanding group is introduced near a reactive
Pintér, Balasz, Fievez, Tim, Bickelhaupt, F.m., Geerlings, Paul, De Proft, Frank   +4 more
openaire   +5 more sources

Magnifying the ESIPT process in tris(salicylideneanilines) via the steric effect - a pathway to the molecules with panchromatic fluorescence.

Physical Chemistry, Chemical Physics - PCCP, 2023
Four tris(salicylideneanilines) (TSANs) with gradually increased steric interactions between the keto-enamine moiety and neighbouring phenyl substituent are presented.
P. Gawryś, O. Morawski, M. Banasiewicz, C. A. Barboza   +3 more
semanticscholar   +1 more source

Steric Molecular Combing Effect Enables Ultrafast Self-Healing Electrolyte in Quasi-Solid-State Zinc-Ion Batteries

ACS Energy Letters, 2022
: Quasi-solid-state Zn metal batteries show great potential for next-generation batteries due to their inherent safety and high energy density. However, the mismatch between the static quasi-solid electrolyte surface and the dynamic Zn anode volume ...
Qin Liu, Renpeng Chen, Lin Xu, Yu Liu, Yuhang Dai, Meng Huang, Liqiang Mai   +6 more
semanticscholar   +1 more source

Homolytic versus Heterolytic Hydrogen Evolution Reaction Steered via Steric Effect.

Angewandte Chemie, 2020
Several H-H bond forming pathways have been proposed for the hydrogen evolution reaction (HER). Revealing these HER mechanisms is of fundamental importance for the rational design of catalysts and is also extremely challenging.
Xiao-feng Guo, NI Wang, Xialiang Li, Zongyao Zhang, Jianping Zhao, Wanjie Ren, Shuping Ding, Gelun Xu, Jianfeng Li, Ulf‐Peter Apfel, Wei Zhang, Rui Cao   +11 more
semanticscholar   +1 more source

Steric effects in alkylpyrimidines

Recueil des Travaux Chimiques des Pays-Bas, 1978
AbstractTreatment of solutions of 4,6‐dimethylpyrimidine and 4,6‐di‐t‐butylpyrimidine in acid with aliphatic acids (RCO2H) in the presence of silver nitrate and ammonium peroxydisulfate gave the 2‐R‐4,6‐dimethyl‐ and 2‐R‐4,6‐di‐t‐butylpyrimidines (R = C2H5, i‐C3H7, t‐C4H9). Ths pKa values of these compounds were measured.
van der Plas, H.C., Koudijs, A.
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