Results 61 to 70 of about 249,594 (250)

Estimation of Enantiomeric Excess Based on Rapid Host–Guest Exchange

open access: yesChemosensors, 2021
Chiral molecules possess enantiomers that have non-superimposable chemical structures but exhibit identical nuclear magnetic resonance (NMR) spectra.
Jan Labuta   +7 more
doaj   +1 more source

Supramolecular Complexation of \u3cem\u3eN\u3c/em\u3e-Alkyl- and \u3cem\u3eN\u3c/em\u3e,\u3cem\u3eN\u3c/em\u3e′-Dialkylpiperazines with Cucurbit[6]uril in Aqueous Solution and in the Solid State [PDF]

open access: yes, 2009
Water seeds: Complex stoichiometry/composition and degree of oligomerization (oligomeric supramolecular complex formation) of cucurbit[6]uril (CB[6]) with N-alkyl- and N,N′-dialkylpiperazine were investigated in aqueous solutions by means of isothermal ...
Inoue, Yoshihisa   +11 more
core   +1 more source

Polynuclear Cu4I4py4 complex loaded in mesoporous silica: Photophysics, theoretical investigation, and highly sensitive oxygen sensing application [PDF]

open access: yes
The polynuclear Cu4I4py4 complex has been largely studied in solution and in the powder form due to its interesting luminescent properties, which are largely dependent on temperature and pressure. In this work, we present the synthesis of the complex and
Almeida, TR   +3 more
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Binding abilities of a chiral calix[4]resorcinarene: a polarimetric investigation on a complex case of study

open access: yesBeilstein Journal of Organic Chemistry, 2017
Polarimetry was used to investigate the binding abilities of a chiral calix[4]resorcinarene derivative, bearing L-proline subunits, towards a set of suitably selected organic guests.
Marco Russo, Paolo Lo Meo
doaj   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

Potential of pyridine nanobelt in detecting and trapping of harmful UV filters

open access: yesScientific Reports
Sunscreens, a primary defense against ultraviolet (UV) radiation, use UV filters to mitigate the harmful effects of UVA and UVB radiation, including DNA damage, skin aging, and cancer.
Maria Maqbool   +4 more
doaj   +1 more source

[Review of] Stephen Castles. Here for Good: Western Europe\u27s New Ethnic Minorities [PDF]

open access: yes, 1985
A disturbing, extremely important book. The wealth of information provided by the authors illuminates the present circumstances of ethnic minorities in Western Europe, principally West Germany, and points to potential dangers and repercussions in the ...
Zimmerman, Zora Devrnja
core   +1 more source

Black Hole Demography: From scaling relations to models

open access: yes, 2013
In this contributed paper I review our current knowledge of the local Black Hole (BH) scaling relations, and their impact on the determination of the local BH mass function. I particularly emphasize the remaining systematic uncertainties impinging upon a
Shankar, Francesco
core   +3 more sources

Chiral separation by enantioselective liquid–liquid extraction [PDF]

open access: yes, 2011
The literature on enantioselective liquid–liquid extraction (ELLE) spans more than half a century of research. Nonetheless, a comprehensive overview has not appeared during the past few decades.
Feringa, Ben L.,   +5 more
core   +3 more sources

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