All Outputs (165)

Diagenesis in salt dome roof strata: barite - calcite assemblage in Jebel Madar, Oman (2017)
Journal Article

Halokinesis causes a dynamic structural evolution with the development of faults and fractures, which can act as either preferential fluid pathways or barriers. Reconstructing reactive fluid flow in salt dome settings remains a challenge. This contri... Read More about Diagenesis in salt dome roof strata: barite - calcite assemblage in Jebel Madar, Oman.

Piperazine-based N4-type 16-membered macroheterocycles and their nickel(II) complexes (2017)
Journal Article

Square-planar diamagnetic nickel(II) complexes 5a and 5b containing 16-membered diamino-diimino ligands were prepared from the corresponding open-chain complexes 2a and 2b via condensation with o-phthalic dialdehyde in methanol. The solid-state struc... Read More about Piperazine-based N4-type 16-membered macroheterocycles and their nickel(II) complexes.

An antiferromagnetically coupled heterometal Cu6Fe wheel (2017)
Journal Article

A heterometal Cu6Fe wheel molecule, [CuII6FeIII(HL)6- (OH)2(OCH3)4](NO3)3¢6H2O (1¢6H2O) (H2L = 1-(2-pyridine) 3-(2-pyrrole)acetylacetone) was synthesized by the one-pot reaction of H2L with copper and iron sources. X-ray structural analysis reveals t... Read More about An antiferromagnetically coupled heterometal Cu6Fe wheel.

Interactions and stabilisation of acetone, sulfur dioxide and water with 1-octyl-3-methylimidazolium tetrafluoroborate [OMIM][BF4] at low temperatures (2017)
Journal Article

The interactions between three small molecules, water (H2O), sulfur dioxide (SO2) and acetone ( (CH3)2CO ) with the ionic liquid (IL) 1-octyl-3-methylimidazolium tetrafluoroborate, [OMIM][BF4], have been determined using line of sight temperature pro... Read More about Interactions and stabilisation of acetone, sulfur dioxide and water with 1-octyl-3-methylimidazolium tetrafluoroborate [OMIM][BF4] at low temperatures.

Arylative Intramolecular Allylation of Ketones with 1,3-Enynes Enabled by Catalytic Alkenyl-to-Allyl 1,4-Rhodium(I) Migration (2017)
Journal Article

Straightforward synthesis of 2- and 2,8-substituted tetracenes (2017)
Journal Article

A simple regiospecific route to otherwise problematic substituted tetracenes is described. The diverse cores (E)- 1,2-Ar1CH2(HOCH2)C=C(CH2OH)I (Ar1 = Ph, 4-MePh, 4-MeOPh, 4-FPh) and (E)-1,2-I(HOCH2)C=C(CH2OH)I, accessed from ultra-low cost HOCH2C?CCH... Read More about Straightforward synthesis of 2- and 2,8-substituted tetracenes.

Arylative intramolecular allylation of ketones with 1,3-enynes enabled by catalytic alkenyl-to-allyl 1,4-Rh(I) migration (2017)
Journal Article

Alkenyl-to-allyl 1,4-Rh(I) migration enables the generation of nucleophilic allylrhodium(I) species by remote C–H activation. This new mode of reactivity was employed in the diastereoselective reaction of arylboron reagents with substrates containing... Read More about Arylative intramolecular allylation of ketones with 1,3-enynes enabled by catalytic alkenyl-to-allyl 1,4-Rh(I) migration.

A more critical role for silicon in the catalytic Staudinger amidation: silanes as non-innocent reductants (2017)
Journal Article

Tuning the electronic environment of the anion by using binary ionic liquid mixtures (2017)
Journal Article

The electronic environment of the anion is tuned by using binary ionic liquid mixtures employing a com- mon anion and two cations with large difference in acidity. X-ray photoelectron spectroscopy is used to monitor the change of the electronic envir... Read More about Tuning the electronic environment of the anion by using binary ionic liquid mixtures.

An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters (2017)
Journal Article

We report an experimental investigation of homochiral cluster formation in seeded molecular beam expansions of (2R,3R)-butanediol. Synchrotron radiation VUV photoionization measurements have been performed using a double imaging electron-ion spectrom... Read More about An imaging photoelectron-photoion coincidence investigation of homochiral 2R,3R-butanediol clusters.

Biomass to porous carbon in one step: directly activated biomass for high performance CO2 storage (2017)
Journal Article

This report explores the direct conversion of biomass to activated carbons in one step. We demonstrate the successful conversion of a range of biomass sources, namely, sawdust, the flowering plant Paeonia lactiflora and seaweed (Sargassum fusiforme),... Read More about Biomass to porous carbon in one step: directly activated biomass for high performance CO2 storage.

Accelerated protein synthesis via one–pot ligation–deselenization chemistry (2017)
Journal Article

Peptide ligation chemistry has revolutionized protein science by facilitating access to synthetic proteins. Here, we describe the development of additive-free ligation-deselenization chemistry at ?-selenoaspartate and ?-selenoglutamate that enables t... Read More about Accelerated protein synthesis via one–pot ligation–deselenization chemistry.

Phenol-Catalyzed Discharge in the Aprotic Lithium-Oxygen Battery (2017)
Journal Article

Discharge in the lithium‐O2 battery is known to occur either by a solution mechanism, which enables high capacity and rates, or a surface mechanism, which passivates the electrode surface and limits performance. The development of strategies to promo... Read More about Phenol-Catalyzed Discharge in the Aprotic Lithium-Oxygen Battery.

Photoaquation mechanism of hexacyanoferrate(II) ions: ultrafast 2D UV and transient visible and IR spectroscopies (2017)
Journal Article

Ferrous iron(II) hexacyanide in aqueous solutions is known to undergo photoionization and photoaquation reactions depending on the excitation wavelength. To investigate this wavelength dependence, we implemented ultrafast two-dimensional UV transient... Read More about Photoaquation mechanism of hexacyanoferrate(II) ions: ultrafast 2D UV and transient visible and IR spectroscopies.

X-ray photoelectron spectroscopy of trihalide ionic liquids: comparison to halide-based analogues, anion basicity and beam damage (2017)
Journal Article

X-ray photoelectron spectroscopy is used to investigate two 1-octyl-3-methylimidazolium trihalide ionic liquids, with anions including triiodide and iododibromide. The electronic environment of each element present in ionic liquids studied herein is... Read More about X-ray photoelectron spectroscopy of trihalide ionic liquids: comparison to halide-based analogues, anion basicity and beam damage.

Circular dichroism in photoelectron images from aligned nitric oxide molecules (2017)
Journal Article

We have used velocity map photoelectron imaging to study circular dichroism of the photoelectron angular distributions (PADs) of nitric oxide following two-color resonance-enhanced two-photon ionization via selected rotational levels of the A ²∑⁺ , v... Read More about Circular dichroism in photoelectron images from aligned nitric oxide molecules.

Continuous niobium phosphate catalysed Skraup reaction for quinoline synthesis from solketal (2017)
Journal Article

Solketal is derived from the reaction of acetone with glycerol, a by-product product of the biodiesel industry. We report here the continuous reaction of solketal with anilines over a solid acid niobium phosphate (NbP), for the continuous generation... Read More about Continuous niobium phosphate catalysed Skraup reaction for quinoline synthesis from solketal.

Coulomb fission in multiply charged molecular clusters: Experiment and theory (2017)
Journal Article

A series of three multiply charged molecular clusters, (C6H6)nz+ (benzene), (CH3CN)nz+ (acetonitrile), and (C4H8O)nz+ (tetrahydrofuran), where the charge z is either 3 or 4, have been studied for the purpose of identifying patterns of behaviour close... Read More about Coulomb fission in multiply charged molecular clusters: Experiment and theory.

Laboratory spectroscopy and astronomical significance of the fully-benzenoid PAH triphenylene and its cation (2017)
Journal Article

Triphenylene (C18H12) is a highly symmetric polycyclic aromatic hydrocarbon (PAH) molecule with a ‘fully-benzenoid’ electronic structure. This confers a high chemical stability compared with PAHs of similar size. Although numerous infrared and UV-vis... Read More about Laboratory spectroscopy and astronomical significance of the fully-benzenoid PAH triphenylene and its cation.

Merging Photoredox with 1,2-Metallate Rearrangements: The Photochemical Alkylation of Vinyl Boronate Complexes (2017)
Journal Article

© 2017 American Chemical Society. Vinyl boronates react with electron-deficient alkyl iodides in the presence of visible light to give boronic esters in which two new C-C bonds have been created. The reaction occurs by radical addition of an electron... Read More about Merging Photoredox with 1,2-Metallate Rearrangements: The Photochemical Alkylation of Vinyl Boronate Complexes.