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717 Newest Publications about the topic bromine


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Cyclotetrahalo-p-phenylenes: simulations of halogen substituted cycloparaphenylenes and their interaction with C60

17-Aug-2016 | J. Rio; D. Erbahar; M. Rayson; P. Briddon; C. P. Ewels, Physical Chemistry Chemical Physics, 2016

Density functional calculations are used to study the role of edge-functionalization on the structure and electronic properties of cycloparaphenylene (CPPs) containing from six to twenty benzenoid rings. We substitute hydrogen by the halogens fluorine, chlorine and bromine. The resultant ...


Synthesis Methods for Halogenated Calix[4]Arenes

16-Aug-2016 | A. Ivanova, Ekaterina; E. Prokhorova, Polina; Y. Morzherin, Yury, Mini-Reviews in Organic Chemistry, 2016

Abstract: This review presents synthesis methods for halogenated calix[4]arenes at the upper rim and in meta-position of phenolic unit as well as at the lower rim by substitution of hydroxyl group by halogen atom; methods for introducing the atom of iodine, bromine and chlorine into the ...


Selective Oxygen Atom Insertion into an Aryl–Palladium Bond

12-Aug-2016 | Ava Behnia; Paul D. Boyle; Johanna M. Blacquiere; Richard J. Puddephatt, Organometallics, 2016

The chemistry of a palladium(II) complex containing both an alkyl– and an aryl–palladium bond is reported. The reaction of [Pd(CH2CMe2C6H4)(MesN═CHCH═NMes)] with bromine or iodine leads to reductive elimination of 1,1-dimethylcyclobutabenzene with formation of [PdX2(MesN═CHCH═NMes)] (X = Br, I). ...


ChemInform Abstract: Use of Bromine and Bromo‐Organic Compounds in Organic Synthesis

11-Aug-2016 | Indranirekha Saikia, Arun Jyoti Borah, Prodeep Phukan, ChemInform, 2016

Abstract Review: 2263 refs.


Suppression of surface pattern formation in spin‐coated polymer films by the addition of polydimethylsiloxane‐grafted silica nanoparticles

08-Aug-2016 | Xianwen Ren, Lu‐Tao Weng, Kai‐Mo Ng, Chi‐Ming Chan, Surface and Interface Analysis, 2016

Polydimethylsiloxane (PDMS)‐grafted nanoparticles and PDMS were added, respectively, to inhibit the dewetting of polymer films and the formation of surface patterns in spin coating. Uniform and flat films were successfully achieved with the addition of PDMS‐grafted silica nanoparticles or PDMS. ...


Compound‐specific bromine isotope ratio analysis using gas chromatography/quadrupole mass spectrometry

05-Aug-2016 | Yevgeni Zakon, Ludwik Halicz, Ovadia Lev, Faina Gelman, Rapid Communications in Mass Spectrometry, 2016

Rationale Brominated organic compounds (BOCs) are common persistent toxic pollutants. Compound‐specific stable bromine isotope ratio analysis is one of the potential approaches for investigating BOC transformations in the environment. In the present study, we demonstrate that precise bromine ...


Ultraviolet/Ozone as a Tool To Control Grafting Density in Surface-Initiated Controlled-Radical Polymerizations via Ablation of Bromine

03-Aug-2016 | Richard J. Sheridan; Sara V. Orski; Shin Muramoto; Christopher M. Stafford; Kathryn L. Beers, Langmuir, 2016

We used an ultraviolet-ozone (UVO) cleaner to create substrates for atom-transfer radical polymerization (ATRP) with varying surface initiator coverage. We collected complementary time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) measurements to ...


Construction and Structure Determination of a Three-Dimensional DNA Crystal

02-Aug-2016 | Chad R. Simmons; Fei Zhang; Jens J. Birktoft; Xiaodong Qi; Dongran Han; Yan Liu; Ruojie Sha; Hatem O. Abdallah; Cari ..., Journal of the American Chemical Society, 2016

Structural DNA nanotechnology combines branched DNA junctions with sticky-ended cohesion to create self-assembling macromolecular architectures. One of the key goals of structural DNA nanotechnology is to construct three-dimensional (3D) crystalline lattices. Here we present a new DNA motif and a ...


Elemental Bromine Production by TiO2 Photocatalysis and/or Ozonation

27-Jul-2016 | Francesco Parrino, Giovanni Camera Roda, Vittorio Loddo, Leonardo Palmisano, Angewandte Chemie International Edition, 2016

Abstract Significant production of elemental bromine (Br2) was observed for the first time when treating bromide containing solutions at acidic pH, with TiO2 photocatalyst, ozone, or a combination thereof. Br2 selectivities up to approximately 85 % were obtained and the corresponding bromine ...


One-pot synthesis of 4′-alkyl-4-cyanobiaryls on the basis of the terephthalonitrile dianion and neutral aromatic nitrile cross-coupling

25-Jul-2016 | Roman Yu. Peshkov, Elena V. Panteleeva, Wang Chunyan, Evgeny V. Tretyakov and Vitalij D. Shteingarts, Beilstein Journal of Organic Chemistry, 2016

Abstract A convenient one-pot approach to alkylcyanobiaryls is described. The method is based on biaryl cross-coupling between the sodium salt of the terephthalonitrile dianion and a neutral aromatic nitrile in liquid ammonia, and successive alkylation of the long-lived anionic intermediate ...


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