Results 201 to 210 of about 127,504 (265)

Steric augmentation of three-coordinate Cu(i) β-diketiminate isocyanide chromophores to achieve microsecond excited-state lifetime. [PDF]

Chem Sci
Kumar A, Kim D, Dunphy SP, Lewis EN, Figueroa JS, Teets TS.   +5 more
europepmc   +1 more source

Effects of aromatic salts on the phase behavior and viscoelastic properties of a cationic gemini surfactant in aqueous solutions. [PDF]

RSC Adv
Zhao C, Lu S, Cao S, Wu Z, Wang L, Tang X, Liu B, Gao M, Xu H.   +8 more
europepmc   +1 more source

Predicting enantiomer migration order of levobunolol via sequential computational modeling. [PDF]

J Mol Model
Maia PP, Freitas RMD, Guimarães L, Nascimento CS.   +3 more
europepmc   +1 more source

Cis-Acting Chaperoning by Macromolecular Tethering: A Built-In Layer of Cellular Chaperoning. [PDF]

Int J Mol Sci
Choi SI, Jin Y, Choi Y, Seong BL.
europepmc   +1 more source

STERIC EFFECTS IN ORGANIC CHEMISTRY

, 1962
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Design principles for enantiospecific <i>para</i>- and <i>ortho</i>-[3,3] rearrangements of chiral aryl-allyl ethers.

Org Chem Front
Breinsperger J, Kaiser M, Gärtner P.
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
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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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Steric effect on fluorescence quenching

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2005
In this communication we have reported the steric effect on the fluorescence quenching rate constants of the electron transfer (ET) process. We have done a comparative study using donor (D)-acceptor (A) systems with different exergonicity (-deltaG(f)). Different carbazole derivatives (CZ): 1,4-dicyanobenzene (DCB) systems (-deltaG(f) = 0.7-0.8 eV) were
Suchandra, Chatterjee, Samita, Basu, Nandita, Ghosh, Manas, Chakrabarty   +3 more
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