Results 1 to 10 of about 1,067,797 (298)

A Tail Does Not Always Make a Difference: Assembly of cds Nets from Co(NCS)2 and 1,4-bis(n-Alkyloxy)-2,5-bis(3,2′:6′,3″-terpyridin-4′-yl)benzene Ligands

open access: yesMolecules, 2022
The consistent assembly of a (65.8) cds net is observed in reactions of cobalt(II) thiocyanate with 1,4-bis(n-alkyloxy)-2,5-bis(3,2′:6′,3″-terpyridin-4′-yl)benzene ligands in which the n-alkyloxy substituents are n-propyl (ligand 3), n-butyl (4), n ...
Simona S. Capomolla   +4 more
doaj   +1 more source

Synthesis and investigation of solvent effects on the ultraviolet absorption spectra of 1, 3-bis-substituted-5, 5-dimethylhydantoins [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
A series of 1,3-bis-substituted-5,5-dimethylhydantoins was synthesized using the reaction of 5,5-dimethylhydantoin with the corresponding alkyl halide in the presence of trimethylamine as catalyst and sodium hydroxide, according to a modified literature ...
Ušćumlić Gordana S.   +2 more
doaj   +3 more sources

Synthesis and investigation of solvent effects on the ultraviolet absorption spectra of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
A number of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones from cyanoacetamide and the corresponding alkyl ethyl acetoacetates were synthesized according to modified literature procedures. The alkyl ethyl acetoacetates were obtained by the
Mijin Dušan Ž.   +2 more
doaj   +1 more source

Ion-Specific and Solvent Effects on PDADMA–PSS Complexation and Multilayer Formation

open access: yesColloids and Interfaces, 2021
Among various parameters that influence the formation of polyelectrolyte complexes and multilayers, special emphasis should be placed on ion-specific and solvent effects.
Jasmina Jukić   +4 more
doaj   +1 more source

Solvent and solvation effects on reactivities and mechanisms of phospho group transfers from phosphate and phosphinate esters to nucleophiles

open access: yesFrontiers in Chemistry, 2023
Organophosphorus esters fulfil many industrial, agricultural, and household roles. Nature has deployed phosphates and their related anhydrides as energy carriers and reservoirs, as constituents of genetic materials in the form of DNA and RNA, and as ...
Ikenna Onyido   +3 more
doaj   +1 more source

Solvent-Driven Chirality Switching of a Pillar[4]arene[1]quinone Having a Chiral Amine-Substituted Quinone Subunit

open access: yesFrontiers in Chemistry, 2021
Several new chiral pillar[4]arene[1]quinone derivatives were synthesized by reacting pillar[4]arene[1]quinone (EtP4Q1), containing four 1,4-diethoxybenzene units and one benzoquinone unit, with various chiral amines via Michael addition.
Chunhong Liu   +6 more
doaj   +1 more source

Intrinsic viscosity and friction coefficient of polymer molecules in solution: Porous sphere model [PDF]

open access: yes, 1978
The intrinsic viscosity [] and the translational friction coefficient f of polymer molecules in solution are calculated on the basis of the porous sphere model.
Mijnlieff, P.F., Wiegel, F.W.
core   +5 more sources

15N NMR Shifts of Eumelanin Building Blocks in Water: A Combined Quantum Mechanics/Statistical Mechanics Approach

open access: yesMolecules, 2020
Theoretical results for the magnetic shielding of protonated and unprotonated nitrogens of eumelanin building blocks including monomers, dimers, and tetramers in gas phase and water are presented. The magnetic property in water was determined by carrying
Leonardo Bruno Assis Oliveira   +2 more
doaj   +1 more source

Solute Effects on the Helix-Coil Transition [PDF]

open access: yes, 2002
We discuss the effects of the solvent composition on the helix-coil transition of a polypeptide chain. We use a simple model to demonstrate that improving the hydrogen-bonding ability of the solvent can make the transition less cooperative, without ...
Farago, Oded, Pincus, Philip
core   +1 more source

Solvent Effects on Electrophilicity

open access: yesJournal of the American Chemical Society, 2001
Continuum solvent effect on the electrophilicity index recently proposed by Parr and co-workers (Parr, R. G.; von Szentpaly, L.; Liu, S. J. Am. Chem. Soc. 1999, 121, 1922) is discussed in detail. Solvent effect is introduced using the self-consistent isodensity polarized continuum model (SCI-PCM).
Pérez, Patricia   +2 more
openaire   +9 more sources

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