Chemical polarity ≈ Chemical polarity
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Solvent Supercritical Fluid Technologies to Extract Bioactive Compounds from Natural Sources: A Review Open
Supercritical fluid technologies offer a propitious method for drug discovery from natural sources. Such methods require relatively short processing times, produce extracts with little or no organic co-solvent, and are able to extract bioa…
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A degenerate Fermi gas of polar molecules Open
Coaxing quantumness in a molecular gas A dilute atomic gas cooled down to very cold temperatures can enter the so-called quantum degenerate regime, where quantum properties of the gas come to the fore. This regime has been achieved for bot…
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Vegetable Oils as Alternative Solvents for Green Oleo-Extraction, Purification and Formulation of Food and Natural Products Open
Since solvents of petroleum origin are now strictly regulated worldwide, there is a growing demand for using greener, bio-based and renewable solvents for extraction, purification and formulation of natural and food products. The ideal alt…
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Polar polymer–solvent interaction derived favorable interphase for stable lithium metal batteries Open
Effective and dense Li plating/stripping by suppressing free solvents from intermolecular dipole–dipole interaction between a polar polymer & solvents, resulting in high-performance Li-metal batteries.
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The Impact of Dipolar Layers on the Electronic Properties of Organic/Inorganic Hybrid Interfaces Open
The presence of dipolar layers determines the functionality of most technologically relevant interfaces. The present contribution reviews how periodic dipole assemblies modify the properties of such interfaces through so‐called collective …
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‘Ferroelectric’ metals reexamined: fundamental mechanisms and design considerations for new materials Open
Free electrons suppress the ferroelectric instability of BaTiO3, but not that of CaTiO3or the recently synthesized ‘ferroelectric’ metal LiOsO3.
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Optoelectrical Cooling of Polar Molecules to Submillikelvin Temperatures Open
We demonstrate direct cooling of gaseous formaldehyde (H2CO) to the microkelvin regime. Our approach, optoelectrical Sisyphus cooling, provides a simple dissipative cooling method applicable to electrically trapped dipolar molecules. By re…
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Triphilic Ionic‐Liquid Mixtures: Fluorinated and Non‐fluorinated Aprotic Ionic‐Liquid Mixtures Open
We present here the possibility of forming triphilic mixtures from alkyl‐ and fluoroalkylimidazolium ionic liquids, thus, macroscopically homogeneous mixtures for which instead of the often observed two domains—polar and nonpolar—three sta…
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Magnetic Trapping of an Ultracold Gas of Polar Molecules Open
We demonstrate the efficient transfer of molecules from a magneto-optical trap into a conservative magnetic quadrupole trap. Our scheme begins with a blue-detuned optical molasses to cool SrF molecules to ≈50 μK. Next, we optically pump th…
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Microwave Shielding of Ultracold Polar Molecules Open
We use microwaves to engineer repulsive long-range interactions between ultracold polar molecules. The resulting shielding suppresses various loss mechanisms and provides large elastic cross sections. Hyperfine interactions limit the shiel…
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Ionic screening and dissociation are crucial for understanding chemical self-propulsion in polar solvents Open
Polar solvents like water support the bulk dissociation of themselves and their solutes into ions, and the re-association of these ions into neutral molecules in a dynamic equilibrium, e.g., H2O2 ⇌ H+ + HO2-. Using continuum theory, we stu…
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Bromo- and iodo-bridged building units in metal-organic frameworks for enhanced carrier transport and CO2 photoreduction by water vapor Open
Organolead halide hybrids have many promising attributes for photocatalysis, e.g . tunable bandgaps and excellent carrier transport, but their instability constraints render them vulnerable to polar molecules and limit their photocatalysis…
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RPLC-HILIC and SFC with Mass Spectrometry: Polarity-Extended Organic Molecule Screening in Environmental (Water) Samples Open
Trace organic compounds are important in environmental analysis because they impact water quality and introduce potential (eco)toxicological effects. Current analytical methods mostly rely on gas chromatography (GC) or reversed-phase liqui…
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Contact angles and wettability of ionic liquids on polar and non-polar surfaces Open
Experimental and theoretical approaches were combined and a new extended list for the contact angles of ionic liquids on three surfaces is provided.
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Review on ferroelectric/polar metals Open
The possibility of reconciliation between seemingly mutually exclusive properties in one system can not only lead to theoretical breakthroughs but also potential novel applications. The research on the coexistence of two purportedly contra…
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How to control single-molecule rotation Open
The orientation of molecules is crucial in many chemical processes. Here, we report how single dipolar molecules can be oriented with maximum precision using the electric field of a scanning tunneling microscope. Rotation is found to occur…
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Solvent Organization and Rate Regulation of a Menshutkin Reaction by Oriented External Electric Fields are Revealed by Combined MD and QM/MM Calculations Open
When and how do external electric fields (EEFs) lead to catalysis in the presence of a (polar or nonpolar) solvent? This is the question that is addressed here using a combination of molecular dynamics (MD) simulations, quantum mechanical/…
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Effect of solvent polarity on the photophysical properties of chalcone derivatives Open
The photophysical properties were studied for FNPO, AFPO and FHPO in different organic solvents. The excited state of the molecules were found to be more polar than the ground state.
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Effects of gas–wall interactions on measurements of semivolatile compounds and small polar molecules Open
Recent work has quantified the delay times in measurements of volatile organic compounds (VOCs) caused by the partitioning between the gas phase and the surfaces of the inlet tubing and instrument itself. In this study we quantify wall par…
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Light absorption by polar and non-polar aerosol compounds from laboratory biomass combustion Open
Fresh and atmospherically aged biomass-burning (BB) aerosol mass is mostly comprised of strongly light-absorbing black carbon (BC) and of organic carbon (OC) with its light-absorbing fraction – brown carbon (BrC). There is a lack of data o…
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Robust entangling gate for polar molecules using magnetic and microwave fields Open
Polar molecules are an emerging platform for quantum technologies based on their long-range electric dipole–dipole interactions, which open new possibilities for quantum information processing and the quantum simulation of strongly correla…
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Rotational Coherence Times of Polar Molecules in Optical Tweezers Open
Qubit coherence times are critical to the performance of any robust quantum computing platform. For quantum information processing using arrays of polar molecules, a key performance parameter is the molecular rotational coherence time. We …
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Prospects for quantum computing with an array of ultracold polar paramagnetic molecules Open
Arrays of trapped ultracold molecules represent a promising platform for implementing a universal quantum computer. DeMille [Phys. Rev. Lett. 88, 067901 (2002)] has detailed a prototype design based on Stark states of polar 1Σ molecules as…
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A New Perspective on the Apparent Solubility of Dissolved Black Carbon Open
Black carbon (BC), pyrogenic organic matter generated from the incomplete combustion of biomass, is ubiquitous in the environment. The molecular structures which comprise the BC pool of compounds are defined by their condensed aromatic cor…
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Chemical Composition and Potential Environmental Impacts of Water-Soluble Polar Crude Oil Components Inferred from ESI FT-ICR MS Open
Polar petroleum components enter marine environments through oil spills and natural seepages each year. Lately, they are receiving increased attention due to their potential toxicity to marine organisms and persistence in the environment. …
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Multivariate analysis for FTIR in understanding treatment of used cooking oil using activated carbon prepared from olive stone Open
In this study, activated carbons prepared from the green and black olive stone (green OSAC and black OSAC) were used as adsorbents to investigate their removal efficiencies for oxidation products and polar compounds from used sunflower and…
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Extending Rotational Coherence of Interacting Polar Molecules in a Spin-Decoupled Magic Trap Open
Superpositions of rotational states in polar molecules induce strong, long-range dipolar interactions. Here we extend the rotational coherence by nearly one order of magnitude to 8.7(6) ms in a dilute gas of polar $^{23}$Na$^{40}$K molecul…
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Using the Quantum Chemistry for Genesis of a Nano Biomembrane with a Combination of the Elements Be, Li, Se, Si, C and H Open
Preliminary bibliographic studies did not reveal any works with characteristics studied here. With this arrangement of atoms and employees with such goals. Going beyond with imagination using quantum chemistry in calculations to obtain pro…
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MOFs with Open Metal(III) Sites for the Environmental Capture of Polar Volatile Organic Compounds Open
Metal–Organic Frameworks (MOFs) with open metal sites (OMS) interact strongly with a range of polar gases/vapors. However, under ambient conditions, their selective adsorption is generally impaired due to a high OMS affinity to water. This…
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Solvent-assisted stir bar sorptive extraction by using swollen polydimethylsiloxane for enhanced recovery of polar solutes in aqueous samples: Application to aroma compounds in beer and pesticides in wine Open
A novel solvent-assisted stir bar sorptive extraction (SA-SBSE) technique was developed for enhanced recovery of polar solutes in aqueous samples. A conventional PDMS stir bar was swollen in several solvents with log Kow ranging from 1.0 t…