Results 71 to 80 of about 11,302,873 (322)

(How) does 1,3,5-triethylbenzene scaffolding work? Analyzing the abilities of 1,3,5-triethylbenzene- and 1,3,5-trimethylbenzene-based scaffolds to preorganize the binding elements of supramolecular hosts and to improve binding of targets

Beilstein Journal of Organic Chemistry, 2012
1,3,5-triethylbenzenes have been widely used as supramolecular templates to organize molecular-recognition elements. It is believed that the steric-gearing effect of the 1,3,5-triethylbenzene template directs the binding elements toward the same face of ...
Xing Wang, Fraser Hof
doaj   +1 more source

A molecular equation of state for alcohols which includes steric hindrance in hydrogen bonding

, 2018
In this paper we develop the first equation of state for alcohol containing mixtures which includes the effect of steric hindrance between the two electron lone pair hydrogen bond acceptor sites on the alcohol's hydroxyl oxygen. The theory is derived for
Marshall, Bennett D.
core   +1 more source

Ligand steric effects on α-diimine nickel catalyzed ethylene and 1-hexene polymerization

, 2017
A series of ortho-dibenzhydryl or ortho-sec-phenethyl substituted α-diimine nickel complexes with systematically varied ligand steric effects were used as precatalysts for the polymerization of ethylene and 1-hexene upon activation with Et2AlCl.
Jinlong Sun, Fuzhou Wang, Weimin Li, Min Chen   +3 more
semanticscholar   +1 more source

5,11‐Di(thiophen‐2‐yl)Tetracene: A Novel Tetracene Derivative for Efficient Singlet Fission with Enhanced Physical and Chemical Stability in Thin Films

Advanced Functional Materials, EarlyView.
In this work, a new tetracene derivative, 5,11‐di(thiophen‐2‐yl)tetracene (2T‐Tc) is introduced, exhibiting enhanced physical and chemical stability, and retaining favorable singlet fission kinetics with near unity triplet pair yield in thin films.
Jieun Lee, Jeoungin Yi, Hyerim Hong, Yu Jin Lee, Feifei Fang, Sangjun Lee, Won Bo Lee, Sungyoung Yun, Kyung‐Bae Park, Jeong‐Il Park, Dongho Kim, Woojae Kim   +11 more
wiley   +1 more source

Spicules and the effect of rigid rods on enclosing membrane tubes

, 2005
Membrane tubes (spicules) arise in cells, or artificial membranes, in the nonlinear deformation regime due to, e.g. the growth of microtubules, actin filaments or sickle hemoglobin fibers towards a membrane.
B. Alberts, C. S. Peskin, D. Boal, D. Nelson, D. R. Daniels, D. Raucher, M. S. Turner, P. M. Chaikin, S. A. Safran, V. Heinrich, W. Helfrich   +10 more
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Semiempirical and Ab Initio calculation of the molecular structures of substituted N-Benzoylimidazoles

Semina: Ciências Exatas e Tecnológicas, 2001
Possible reasons of low reactivities of some N-(2-X-benzoyl) imidazoles utilising ab initio Hartree-Fock calculations have been studied in imidazole-catalyzed hydrolysis.
Paulo Meneghelli
doaj  

Steric and electronic control of an ultrafast isomerization. [PDF]

, 2019
Synthetic control of the influence of steric and electronic factors on the ultrafast (picosecond) isomerization of penta-coordinate ruthenium dithietene complexes (Ru((CF3)2C2S2)(CO)(L)2, where L = a monodentate phosphine ligand) is reported.
Kubiak, Clifford P, Ostericher, Andrew L, Porter, Tyler M   +2 more
core  

Active Matter Ratchets with an External Drift

, 2013
When active matter particles such as swimming bacteria are placed in an asymmetric array of funnels, it has been shown that a ratchet effect can occur even in the absence of an external drive. Here we examine active ratchets for two dimensional arrays of
Reichhardt, C., Reichhardt, C. J. Olson
core   +1 more source

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

, 2016
In the Brookhart type α-diimine palladium catalyst system, it is highly challenging to tune the polymer branching densities through ligand modifications or polymerization conditions. In this contribution, we describe the synthesis and characterization of
Shengyu Dai, Shixin Zhou, W. Zhang, Changle Chen   +3 more
semanticscholar   +1 more source