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498 Newest Publications about the topic bromine

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Gas Permeability of Hexaphenylbenzene Based Polymers of Intrinsic Microporosity

21-11-2014 | Mariolino Carta; Paola Bernardo; Gabriele Clarizia; Johannes C. Jansen; Neil B. McKeown, Macromolecules, 2014

The synthesis and characterization of a series of novel hexaphenylbenzene (HPB) based polymers of intrinsic microporosity (PIM-HPBs) containing methyl, bromine, and nitrile substituents are reported. The successful formation of thin films from these polymers allowed the evaluation of the ...

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Construction and Properties of Hyperbranched Block Copolymer with Independently Adjustable Heterosubchains

17-11-2014 | Jinxian Yang; Lianwei Li; Zongyang Jing; Xiaodong Ye; Chi Wu, Macromolecules, 2014

A trifunctional initiator with one alkyne, one hydroxyl, and one bromine group was used to construct Br-polystyrene-alkyne-poly(ε-caprolactone)-OH diblock copolymer precursor () with one alkyne group located at the junction between the two blocks. Further bromination and azidation substitution of ...

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Oxidative halogenation of cisplatin and carboplatin: synthesis, spectroscopy, and crystal and molecular structures of Pt(IV) prodrugs

12-11-2014 | Timothy C. Johnstone; Sarah M. Alexander; Justin J. Wilson; Stephen J. Lippard, Dalton Transactions, 2014

A series of Pt(iv) prodrugs has been obtained by oxidative halogenation of either cisplatin or carboplatin. Iodobenzene dichloride is a general reagent that cleanly provides prodrugs bearing axial chlorides without the need to prepare intervening Pt(iv) intermediates or handle chlorine gas. ...

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Heavy Atom Effect on Magnetic Anisotropy of Matrix-Isolated Monobromine Substituted Septet Trinitrene

11-11-2014 | Eugenii Ya. Misochko; Artem A. Masitov; Alexander V. Akimov; Denis V. Korchagin; Sergei V. Chapyshev, Journal of Physical Chemistry A, 2014

The heavy atom effect on the magnetic anisotropy of septet trinitrenes is reported. Septet 1-bromo-3,5-dichloro-2,4,6-trinitrenobenzene (S-1) was generated in a solid argon matrix by ultraviolet irradiation of 1,3,5-triazido-2-bromo-4,6-dichlorobenzene. This trinitrene displays an electron spin ...

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Theoretical Study of Electronic Properties of X-Doped (X = F, Cl, Br, I) VO2 Nanoparticles for Thermochromic Energy-Saving Foils

10-11-2014 | Qinghua Ren; Jinyu Wan; Yanfeng Gao, Journal of Physical Chemistry A, 2014

First-principles density functional theory (DFT) electronic structure calculations were carried out for the model halogen-doped VO2 (M1 phase) to evaluate the effect of halogen (X = F, Cl, Br, I) doping on the band edges. The model structures of X-doped VO2 with X at V site or O site were ...

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Dehalogenation of Arenes via SN2 Reactions at Bromine: Competition with Nucleophilic Aromatic Substitution.

07-11-2014 | Scott Gronert; John M. Garver; Charles M. Nichols; Benjamin B. Worker; Veronica M. Bierbaum, The Journal of Organic Chemistry, 2014

The gas-phase reactions of carbon- and nitrogen-centered nucleophiles with polyfluorobromobenzenes were examined in a selected-ion flow tube (SIFT) and modeled computationally at the MP2/6-31+G(d,p)//MP2/6-31+G(d) level. In the gas-phase experiments, rate constants and branching ratios were ...

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Nucleic Acid Quadruplexes Based on 8-Halo-9-deazaxanthines: Energetics and Noncovalent Interactions in Quadruplex Stems

04-11-2014 | Yevgen P. Yurenko; Jan Novotný; Mariusz P. Mitoraj; Vladimir Sklenář; Artur Michalak; Radek Marek, Journal of Chemical Theory and Computation, 2014

Structural and energetic features of artificial DNA quadruplexes consisting of base tetrads and their stacks with Na+/K+ ion(s) inside the central pore and incorporating halogenated derivatives of xanthine, 8-fluoro-9-deazaxanthine (FdaX), 8-chloro-9-deazaxanthine (CldaX), 8-bromo-9-deazaxanthine ...

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Kinetics and Mechanism of the Oxidation of Bromide by Periodate in Aqueous Acidic Solution

03-11-2014 | Viktor Szél; György Csekő; Attila K. Horváth, Journal of Physical Chemistry A, 2014

The periodate–bromide reaction has been studied spectrophotometrically mainly in excess of bromide ion, monitoring the formation of the total amount of bromine at 450 nm at acidic buffered conditions and at a constant ionic strength in the presence of a phosphoric acid/dihydrogen phosphate ...

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Functional Networks of Organic and Coordination Polymers: Catalysis of Fructose Conversion

03-11-2014 | Lev Bromberg; Xiao Su; T. Alan Hatton, Chemistry of Materials, 2014

The creation of functional porous nanoscale networks with enhanced reactive group accessibility provides rich promise for novel designs of composite materials. We present a straightforward strategy for the preparation of porous polymer/MOF hybrids via polymerization of organic monomers and ...

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Photogeneration of Hydrogen from Water by Hybrid Molybdenum Sulfide Clusters Immobilized on Titania

30-10-2014 | David Recatalá, Rosa Llusar, Artem L. Gushchin, Ekaterina A. Kozlova, Yuliya A. Laricheva, Pavel A. Abramov, Maxim N ..., ChemSusChem, 2014

Abstract Two new hybrid molybdenum(IV) Mo3S7 cluster complexes derivatized with diimino ligands have been prepared by replacement of the two bromine atoms of [Mo3S7Br6]2− by a substituted bipyridine ligand to afford heteroleptic molybdenum(IV) Mo3S7Br4(diimino) complexes. Adsorption of the ...

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