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1.732 Aktuelle Fachpublikationen zum Thema temperature

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Dual ligand-based fluorescence and phosphorescence emission at room temperature from platinum thioxanthonyl complexes

28.10.2014 | Fabian Geist; Andrej Jackel; Rainer F. Winter, Dalton Transactions, 2014

New square-planar platinum(ii) complexes of the type trans-[Pt(PEt3)2(Tx)(X)] (X = Br, Cl, I or CN) bearing a σ-bonded thioxanthon-2-yl (Tx) ligand have been prepared and characterised by X-ray crystallography, cyclic voltammetry, and by NMR and electronic absorption and luminescence ...

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Direct Arylation Polycondensation of Bithiazole Derivatives with Various Acceptors

24.10.2014 | Masahiro Kuramochi; Junpei Kuwabara; Wei Lu; Takaki Kanbara, Macromolecules, 2014

Novel π-conjugated polymers with a bithiazole unit and various acceptor units were synthesized by polycondensation via Pd-catalyzed direct arylation. The results of polycondensation reactions depend on chalcogen elements in the monomers. The presence of a Se atom inhibited polymerization, ...

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Preparation and spectroscopic studies of PbS/nanoMCM-41 nanocomposite

21.10.2014 | Author(s): A. Pourahmad, Arabian Journal of Chemistry, 2014

Publication date: November 2014 Source:Arabian Journal of Chemistry, Volume 7, Issue 5 Author(s): A. Pourahmad The present work describes the preparation and characterization of nanosized PbS particles inside the mesopore channels of nanoMCM-41 silicate molecular sieves. The encapsulation ...

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Charge-Order Melting in Charge-Disproportionated Perovskite CeCu3Fe4O12

21.10.2014 | Ikuya Yamada; Hidenobu Etani; Makoto Murakami; Naoaki Hayashi; Takateru Kawakami; Masaichiro Mizumaki; Shigenori Ued ..., Inorganic Chemistry, 2014

A novel quadruple perovskite oxide CeCu3Fe4O12 has been synthesized under high-pressure and high-temperature conditions of 15 GPa and 1473 K. 57Fe Mössbauer spectroscopy displays a charge disproportionation transition of 4Fe3.5+ → 3Fe3+ + Fe5+ below ∼270 K, whereas hard X-ray photoemission and ...

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Poly(phenylenevinylene)s as Sensitizers for Visible Light Induced Cationic Polymerization

20.10.2014 | Semih Erdur; Gorkem Yilmaz; Demet Goen Colak; Ioan Cianga; Yusuf Yagci, Macromolecules, 2014

A novel visible light sensitive photoinitiating system for the cationic polymerization of oxiranes such as cyclohexene oxide (CHO) and vinly monomers such as isobutyl vinylether (IBVE) and N-vinyl carbazole (NVC) using poly(phenylenevinylene) (PPV) derivatives as photosensitizers is described. ...

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Reaction Kinetics of Carbon Dioxide (CO2) Absorption in Sodium Salts of Taurine and Proline Using a Stopped‐Flow Technique

18.10.2014 | Ahmed Sodiq, Aravind V. Rayer, Akinola A. Olanrewaju, Mohammad R. M. Abu Zahra, International Journal of Chemical Kinetics, 2014

ABSTRACT The pseudo–first‐order reaction rate constants (k0, s−1) for the reaction of carbon dioxide in aqueous solutions of sodium taurate (NaTau) and sodium prolinate (NaPr) were measured using a stopped‐flow technique at a temperature range of 298–313 K. The solutions concentration varied ...

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Development of a thermodynamic identification tool for CO2 capture by chemical absorption

15.10.2014 | Anthony Biget, Thibaut Neveux, Jean‐Pierre Corriou, Yann Le Moullec, The Canadian Journal of Chemical Engineering, 2014

Abstract The extended UNIQUAC model has been used for the representation of the thermodynamic behaviour of CO2 absorption in aqueous amine solutions. Based on available experimental data, an identification methodology has been developed to fit the extended‐UNIQUAC model parameters. In the ...

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Hierarchically CdS Decorated 1D ZnO Nanorods‐2D Graphene Hybrids: Low Temperature Synthesis and Enhanced Photocatalytic Performance

13.10.2014 | Chuang Han, Zhang Chen, Nan Zhang, Juan Carlos Colmenares, Yi‐Jun Xu, Advanced Functional Materials, 2014

A simple, low‐temperature synthesis approach is reported for planting CdS‐sensitized 1D ZnO nanorod arrays on the 2D graphene (GR) sheet to obtain the ternary hierarchical nanostructures, during which graphene oxide (GO) as the precursor of GR acts as a flexible substrate for the formation of ...

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Syntheses, characterization, and electrochemistry of compounds containing 1-diphenylphosphino-1′-(di-tert-butylphosphino)ferrocene (dppdtbpf)

13.10.2014 | Author(s): Manoj Trivedi , Sanjeev Kumar Ujjain , Gurmeet Singh , Abhinav Kumar , Santosh Kumar Dubey , Nigam P ..., Journal of Organometallic Chemistry, 2014

Publication date: 1 December 2014 Source:Journal of Organometallic Chemistry, Volumes 772–773 Author(s): Manoj Trivedi , Sanjeev Kumar Ujjain , Gurmeet Singh , Abhinav Kumar , Santosh Kumar Dubey , Nigam P. Rath The reaction of copper(I) salts CuX (X=Cl, Br, I, CN, SCN), ...

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Temperature resolved aggregate states in dialkoxyphenylene-thiophene oligomer

12.10.2014 | Author(s): B.B.A. Costa , P.L. Santos , M.D.R. Silva , S.L. Nogueira , K.A.S. Araujo , B.R.A. Neves , T. Jarr ..., Chemical Physics Letters, 2014

Publication date: 20 October 2014 Source:Chemical Physics Letters, Volume 614 Author(s): B.B.A. Costa , P.L. Santos , M.D.R. Silva , S.L. Nogueira , K.A.S. Araujo , B.R.A. Neves , T. Jarrosson , F. Serein-Spirau , J.-P. Lère-Porte , L.A. Cury Aggregate formation in ...

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