Results 11 to 20 of about 6,709 (215)

Nano chemistry : large molecular capsules and coordination networks based on self-assembly [PDF]

open access: yes, 2004
This thesis focuses on the characterisation of supramolecular structures containing p-sulfonatocalix[ n]arenes (where n=4,5,6,8) with suitable guest molecules and lanthanide metal cations. The characterisation is based primarily on X-ray diffraction but
Dalgarno, Scott John
core   +7 more sources

Calixarene-based amphiphiles : synthesis, self-assembly and interaction with DNA [PDF]

open access: yes, 2015
The present doctoral thesis focused on the synthesis of amphiphilic calix[4]arenes, the study of their self-assembly properties at the air-water interface as Langmuir monolayers or in solution as nanoparticles and on the DNA-binding properties of the ...
Rullaud, Vanessa
core   +1 more source

Association Complexes of Calix[6]arenes with Amino Acids Explained by Energy-Partitioning Methods

open access: yesMolecules, 2022
Intermolecular complexes with calixarenes are intriguing because of multiple possibilities of noncovalent binding for both polar and nonpolar molecules, including docking in the calixarene cavity.
Emran Masoumifeshani   +3 more
doaj   +1 more source

Separation performance of PEG-linked calix[4]arene as stationary phase for capillary gas chromatography [PDF]

open access: yesQuímica Nova, 2023
This work presented a new PEG modified calix[4]arene stationary phase (C4A-PEG-2PTSC) for gas chromatographic (GC) separations. The statically coated C4A-PEG-2PTSC column exhibited moderate polarity and column efficiency of 2224 plates m-1 determined by ...
Wei Zhang   +8 more
doaj   +1 more source

Thermodynamic, Chemical and Electrochemical Investigations of Calixarene Derivatives as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution

open access: yesInternational Journal of Electrochemical Science, 2012
The focus of this study is to synthesize new calixarene derivatives namely calix[8]arenes (3a) (P1) and (2a) (P2), and to test its performance as corrosion inhibitor of steel in molar HCl at 308K. Polarization and weight loss measurements were used.
M. Kaddouri   +7 more
doaj   +1 more source

Phosphorylated calix[4,8]arenes improve the RP HPLC separation of benzene derivatives

open access: yesЖурнал органічної та фармацевтичної хімії, 2020
Aim. To study the effect of 5,11,17,23-tetrakis(diisopropoxyphosphonyl)-25,26,27,28-tetrapropoxycalix[4]arene and oсtаkis(diethoxyphosphoryloxy)-tert-butylcalix[8]аrene additives to the MeCN – H2O mobile phase (86:14) on the selectivity of the separation
Olga I. Kalchenko   +2 more
doaj   +1 more source

Multivalent Calixarene-Based Liposomes as Platforms for Gene and Drug Delivery

open access: yesPharmaceutics, 2021
The formation of calixarene-based liposomes was investigated, and the characterization of these nanostructures was carried out using several techniques. Four amphiphilic calixarenes were used.
José Antonio Lebrón   +11 more
doaj   +1 more source

5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene dichloromethane hemisolvate

open access: yesActa Crystallographica Section E, 2008
In the title compound, C48H64O4·0.5CH2Cl2, both crystallographically independent calixarene molecules display a partial cone conformation. Their crystal packing is stabilized by C—H...π contacts involving the methoxy groups.
Edwin Weber   +4 more
doaj   +1 more source

The chromatographic study of complexation of functionalized calix[4,8]arenes with aromatic aldehydes

open access: yesЖурнал органічної та фармацевтичної хімії, 2019
Aim. To study the Host-Guest complexation of octakis(diphenoxyphosphoryloxy)-tetramethylcalix[4]resorcinarene (PRA), 5,17-bis(N-tolyl-iminomethyl)-25,27-dipropoxycalix[4]arene (IC4A), 5,11,17,23-tetrakis(diisopropoxyphosphonyl)-25,26,27,28-tetra ...
O. I. Kalchenko   +2 more
doaj   +1 more source

Calixarene-based langmuir monolayers : from crystallization templates to metal organic networks [PDF]

open access: yes, 2015
Molecular self-assembly plays a pivotal role in biological processes and living organisms can be considered as the result of the self-assembly of discrete molecular building blocks into sophisticated functional structures.
Tulli, Ludovico G.
core   +1 more source

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