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63,347 Newest Publications about the topic spectroscopy
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Geometric distortions in nickel (oxy)hydroxide electrocatalysts by redox inactive iron ions
03-Jul-2018 | Rodney D. L. Smith; Chiara Pasquini; Stefan Loos; Petko Chernev; Katharina Klingan; Paul Kubella; Mohammad Reza Moha ..., Energy & Environmental Science, 2018
The dramatic change in electrochemical behavior of nickel (oxy)hydroxide films upon incorporation of Fe ions provides an opportunity to establish effective electrocatalyst design principles. We characterize a photochemically deposited series of Fe–Ni (oxy)hydroxides by X-ray absorption ...
Versatile coordination of acetazolamide to ruthenium(II) p-cymene complexes and preliminary cytotoxicity studies
03-Jul-2018 | Lorenzo Biancalana; Lucinda K. Batchelor; Gianluca Ciancaleoni; Stefano Zacchini; Guido Pampaloni; Paul J. Dyson; Fa ..., Dalton Transactions, 2018
The carbonic anhydrase inhibitor acetazolamide (AcmH2) reacted with [(η6-p-cymene)RuCl(μ-Cl)]2 to afford [(η6-p-cymene)RuCl2(κN-AcmH2)], 1A, in near-quantitative yield. In methanol, 1A exists in equilibrium with 1B, being probably a coordination isomer, as established by VT 1H-EXSY NMR ...
Spontaneous separation of on-surface synthesized tris-helicenes into two-dimensional homochiral domains
03-Jul-2018 | Jingyi Li; Kévin Martin; Narcis Avarvari; Christian Wäckerlin; Karl-Heinz Ernst, Chemical Communication, 2018
The on-surface Ullmann coupling of 2,3-dibromo[4]helicene molecules is studied on Au(111) and Cu(111) surfaces. Bis-helicene and tris-helicene are identified with scanning tunnelling microscopy and X-ray photoelectron spectroscopy as reaction products. The produced star-shaped tris-helicenes ...
Towards Mapping Electrostatic Interactions between Kdo2-Lipid A and Cationic Antimicrobial Peptides via Ultraviolet Photodissociation Mass Spectrometry
03-Jul-2018 | Christopher M Crittenden; Lindsay Jane Morrison; Mignon D Fitzpatrick; Allison P Myers; Elisa T Novelli; Jake Rosenb ..., Analyst, 2018
Cationic antimicrobial peptides (CAMPs) have known to act as multi-modal weapons against Gram-negative bacteria. As a new approach to investigate the nature of the interactions between CAMPs and the surfaces of bacteria, native mass spectrometry and two MS/MS strategies (ultraviolet ...
Phenylene-bridged cross-conjugated 1,2,3-trisilacyclopentadienes
03-Jul-2018 | Hui Zhao; Lukas Klemmer; Michael J Cowley; Moumita Majumdar; Volker Huch; Michael Zimmer; David Scheschkewitz, Chemical Communication, 2018
1,2,3-Trisilacyclopentadienes are obtained from the reactions of cyclotrisilene c-Si3R4 (R = iPr3C6H2) with phenyl and diphenyl acetylene, respectively. With 1,4-diethynyl benzene the cross-conjugated bridging of two of the Si3C2 cycles by a para-phenylene linker is achieved. UV/Vis spectroscopy ...
Transition metal cations on the move: simultaneous operando X-ray absorption spectroscopy and X-ray diffraction investigations during Li uptake and release of a NiFe2O4/CNT composite
03-Jul-2018 | Wolfgang Bensch; Stefan Permien; Tobias Neumann; Sylvio Indris; Gero Neubüser; Lorenz Kienle; Andy Fiedler; Ann ..., Physical Chemistry Chemical Physics, 2018
We report on results of a comprehensive investigation on reaction mechanisms occurring during Li uptake and release of the composite NiFe2O4/CNT. Operando X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) data collected simultaneously using one in situ cell allowed thorough ...
Three-stage pH-switchable organic chromophores with large nonlinear optical responses and switching contrasts
03-Jul-2018 | Stein van Bezouw; Min-Jeong Koo; Seung-Chul Lee; Seung-Heon Lee; Jochen Campo; O-Pil Kwon; Wim Wenseleers, Chemical Communication, 2018
Three-stage pH-switchable organic second-order nonlinear optical (SO NLO) chromophores are synthesized and characterized by wavelength-dependent linear and nonlinear spectroscopy. The chromophores exhibit huge SO NLO responses in their “on” stages, and large switching contrasts between adjacent ...
Deep eutectic–water binary solvent associations investigated by vibrational spectroscopy and chemometrics
03-Jul-2018 | R. Ahmadi; B. Hemmateenejad; A. Safavi; Z. Shojaeifard; A. Shahsavar; A. Mohajeri; M. Heydari Dokoohaki; A. R. Zolghadr, Physical Chemistry Chemical Physics, 2018
Investigation of the behaviour of deep eutectic solvents (DESs) as novel green solvents in the presence of other solvents is of great interest. In this study the behaviour of a common natural DES, namely choline chloride–glycerol deep eutectic solvent (GDES), was studied in the presence of water. ...
Synthesis of efficient Co and N co-doped carbon catalysts with high surface areas for selective oxidation of ethylbenzene
03-Jul-2018 | Yuan Li; Shanshan Jie; Kun Li; Zhigang Liu, New Journal of Chemistry, 2018
In this manuscript, Co and N co-doped carbon catalysts with high surface areas were prepared via the pyrolysis of cobalt nitrate and 1,10-phenanthroline monohydrate, using Mg(OH)2 as a pore former, followed by acid etching. Techniques such as BET analysis, TEM, HRTEM, XPS, and Raman and XRD ...
Nickel nanowires-based composite material applied to the highly enhanced non-enzymatic electro-oxidation of ethanol
01-Jul-2018 | Author(s): Cecilia S. Tettamanti, María L. Ramírez, Fabiana A. Gutierrez, Paula G. Bercoff, Gustavo A. Riv ..., Microchemical Journal, 2018
Publication date: November 2018 Source:Microchemical Journal, Volume 142 Author(s): Cecilia S. Tettamanti, María L. Ramírez, Fabiana A. Gutierrez, Paula G. Bercoff, Gustavo A. Rivas, Marcela C. Rodríguez In this work, we report the building of a nanostructured platform with ...
