Influence of Steric Effect on the Pseudo-Multicomponent Synthesis of N-Aroylmethyl-4-Arylimidazoles [PDF]
A pseudo-three-component synthesis of N-aroylmethylimidazoles 3 with three new C–N bonds formed regioselectively under microwave conditions was developed.
Nerith Rocio Elejalde-Cadena +5 more
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The Steric Effect in Preparations of Vanadium(II)/(III) Dinitrogen Complexes of Triamidoamine Ligands Bearing Bulky Substituents [PDF]
The reactions of newly designed lithiated triamidoamines Li3LR (R = iPr, Pen, and Cy2) with VCl3(THF)3 under N2 yielded dinitrogen–divanadium complexes with a μ-N2 between vanadium atoms [{V(LR)}2(μ-N2)] (R = iPr (1) and Pen (2)) for the former two ...
Yoshiaki Kokubo +7 more
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Steric Effect of Antioxidant Diels-Alder-Type Adducts: A Comparison of Sanggenon C with Sanggenon D [PDF]
Sanggenons C and D are two Diels-Alder-type adducts from Chinese crude drug Sang-bai-pi. Structurally, both sanggenons construct stereoisomers. In the study, they were comparatively determined using four antioxidant assays, including ferric ion reducing ...
Xican Li +7 more
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STERIC EFFECT IN DIFLUORINEALCANE MOLECULES [PDF]
Fifteen conformers of the CHF2 – (CH2)6 – CH3 molecule were found. Within a «quantum theory of atoms in molecules», their equilibrium geometry, total energies and the electron structure were studied.
A.V. Kotomkin +3 more
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Dual Effect of Steric Hindrance in Non‐Aqueous Amine Absorbents: Navigating the Trade‐Off Between Kinetics and Thermodynamics for Efficient CO2 Capture [PDF]
Sterically hindered amines (SHAs) offering high theoretical capacity and reduced regeneration energy, yet their molecular mechanism, especially in non‐aqueous solvents, remains unclear.
Xiaoyi Gao +8 more
doaj +2 more sources
In this paper, the combined effect of the fluid rheology, finite-sized ions, and slippage toward augmenting a non-reacting solute’s mass transport due to an oscillatory electroosmotic flow (OEOF) is determined.
Ruben Baños +3 more
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Review and Modification of Entropy Modeling for Steric Effects in the Poisson-Boltzmann Equation
The classical Poisson-Boltzmann model can only work when ion concentrations are very dilute, which often does not match the experimental conditions.
Tzyy-Leng Horng
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Redox Potential and Crystal Chemistry of Hexanuclear Cluster Compounds
Most of TM6-cluster compounds (TM = transition metal) are soluble in polar solvents, in which the cluster units commonly remain intact, preserving the same atomic arrangement as in solids.
Elena Levi, Doron Aurbach, Carlo Gatti
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Ferrocenoyl-adenines: substituent effects on regioselective acylation
A series of N6-substituted adenine–ferrocene conjugates was prepared and the reaction mechanism underlying the synthesis was explored. The SN2-like reaction between ferrocenoyl chloride and adenine anions is a regioselective process in which the product ...
Mateja Toma +5 more
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Metal–Metal Bond in the Light of Pauling’s Rules
About 70 years ago, in the framework of his theory of chemical bonding, Pauling proposed an empirical correlation between the bond valences (or effective bond orders (BOs)) and the bond lengths.
Elena Levi, Doron Aurbach, Carlo Gatti
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