Results 81 to 90 of about 11,302,873 (322)

Dynamics of Azobenzene Dimer Photoisomerization: Electronic and Steric Effects.

Journal of Physical Chemistry Letters, 2016
While azobenzenes readily photoswitch in solution, their photoisomerization in densely packed self-assembled monolayers (SAMs) can be suppressed. Reasons for this can be steric hindrance and/or electronic quenching, e.g., by exciton coupling.
E. Titov, G. Granucci, J. Götze, M. Persico, P. Saalfrank   +4 more
semanticscholar   +1 more source

Solution‐Processable and Ambient‐Stable Highly Conductive p‐Type Polymers Derived from Dihydropyrazine and Ethylenedioxythiophene

Advanced Functional Materials, EarlyView.
This work presents π–conjugated polymers based on dihydropyrazine (DHP) and ethylenedioxythiophene (EDOT), developed to produce highly conductive, flexible films for printed electronics. By optimizing the DHP and EDOT ratio, strong and compact π–π stacking is achieved, resulting in polymer films with conductivities up to 1700 S cm−1 under ambient ...
Sung Jae Jeon, Naixin Zhao, Yi Yuan, Yuning Li   +3 more
wiley   +1 more source

Steric Effects of Alcohols on the [Mn₄O₄] Cubane-Type Structures

Crystals
[M4O4] (M = 3d transition metal) represents an interesting class of compounds featuring cubane-type molecular structures, and particularly, [Mn4O4] cubanes or their derivatives attract much attention by virtue of their potential applications as single ...
Yan He, Zheng Zhou, Haixiang Han
doaj   +1 more source

Steric Effects of Alkyl Ammonium Salts on the Combustion of Exchanged Smectite Clays [PDF]

, 2018
Bomb calorimetry was explored as a new method for determining the cation exchange capacity (CEC) of clays. Smectite clays were modified with several alkyl ammonium salts varying in number of carbons and the spatial orientation of the carbons about the ...
Keith, Celeste A.
core   +1 more source

Optimizing Angiopep‐2 Density on Polymeric Nanoparticles for Enhanced Blood–Brain Barrier Penetration and Glioblastoma Targeting: Insights From In Vitro and In Vivo Experiments

Advanced Functional Materials, EarlyView.
The Angiopep‐2 peptide density on polymeric nanoparticles significantly impacts blood–brain barrier (BBB) penetration. This study explores this nuanced relationship using various in vitro models and in vivo assays, revealing that dynamic models better predict BBB penetration.
Weisen Zhang, Ahmed Refaat, Haoqin Li, Douer Zhu, Ziqiu Tong, Joseph Anthony Nicolazzo, Bo Peng, Hua Bai, Lars Esser, Nicolas Hans Voelcker   +9 more
wiley   +1 more source

Steric and Stereochemical Modulation in Pyridyl- and Quinolyl-Containing Ligands

Molecules, 2016
Nitrogen-containing pyridine and quinoline are outstanding platforms on which excellent ionophores and sensors for metal ions can be built. Steric and stereochemical effects can be used to modulate the affinity and selectivity of such ligands toward ...
Zhaohua Dai
doaj   +1 more source

Oxygen Defect Engineering of Hexagonal Perovskite Oxides to Boost Catalytic Performance for Aerobic Oxidation of Sulfides to Sulfones

Advanced Functional Materials, EarlyView.
Ru‐substituted hexagonal perovskite SrMnO3, featuring face‐shared oxygen species, is designed as an effective heterogeneous catalyst for the aerobic oxidation of sulfides. The catalyst demonstrates high selectivity to sulfones (>99%) under mild reaction conditions (≥30 °C). Ru substitution promotes oxygen vacancy formation of face‐shared oxygen species
Keiju Wachi, Masashi Makizawa, Takeshi Aihara, Shin Kiyohara, Yu Kumagai, Keigo Kamata   +5 more
wiley   +1 more source

Specific attributes of the V_L domain influence both the structure and structural variability of CDR-H3 through steric effects. [PDF]

Front Immunol, 2023
Guloglu B, Deane CM.
europepmc   +2 more sources

Hydrostatic sea level changes [PDF]

Inverted barometer effects and steric changes effects on hydrostatic response of ...
Welch, G.
core   +1 more source

Size effect in ion transport through angstrom-scale slits

, 2017
It has been an ultimate but seemingly distant goal of nanofluidics to controllably fabricate capillaries with dimensions approaching the size of small ions and water molecules.
Esfandiar, A., Garaj, S., Geim, A. K., Gopinadhan, K., Hu, S., Nair, R. R., Radha, B., Wang, F. C., Yang, Q.   +8 more
core   +1 more source