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Improved analysis of excited state proton transfer kinetics by the combination of standard and convolution methods

Adilson A. Freitas, António A. L. Maçanita, Frank H. Quina
2013 Photochemical and Photobiological Sciences  
However, the analysis can be substantially improved by independently measuring the lifetime of the base (1/k A = 1.46 × 10 −10 s) in solutions with pH > 9 and the lifetime of the acid in the absence of  ...  two reactions coupled in series, in agreement with the experimental results for HMF in aqueous-organic solvent mixtures and for functionalized flavylium salts anchored in SDS micelles.  ... 
doi:10.1039/c3pp25445c pmid:23471212 fatcat:6gdvmw4r6vc7rp7s5frqzkmyvm

Optical and chemical properties and oxidative potential of aqueous-phase products from OH and 3C∗-initiated photooxidation of eugenol

Xudong Li, Ye Tao, Longwei Zhu, Shuaishuai Ma, Shipeng Luo, Zhuzi Zhao, Ning Sun, Xinlei Ge, Zhaolian Ye
2022 Atmospheric Chemistry and Physics  
Overall, our results from using eugenol as a model compound, underscore the potential importance of the aqueous processing of biomass burning emissions in secondary organic aerosol (SOA) formation.  ...  In this study, we comprehensively investigated eugenol photooxidation (a representative biomass-burning-emitted, highly substituted phenolic compound) in the bulk aqueous phase with direct photolysis,  ...  Optical properties of reaction products Light-absorbing properties The UV-vis light absorption spectra of the solutions at different reaction times are presented in Fig. 5 .  ... 
doi:10.5194/acp-22-7793-2022 fatcat:ix2rtgfv5fci5nwsbblwqlmjvi

Metallo-Supramolecular Gels that are Photocleavable with Visible and Near-Infrared Irradiation

Sabrina Theis, Aitziber Iturmendi, Christian Gorsche, Marco Orthofer, Markus Lunzer, Stefan Baudis, Aleksandr Ovsianikov, Robert Liska, Uwe Monkowius, Ian Teasdale
2017 Angewandte Chemie International Edition  
In the search for improved material properties,m etallopolymers have become of ever increasing interest [11] for their potential to supply advanced functional materials for aw ide range of applications  ...  Furthermore,inacetonitrile solution, the Ru-complex can be stored for several months in the dark, again without any changes observable by 1 HNMR spectroscopy ( Figure S5 ).  ...  Scheme 1 . 1 Synthesis and photochemical cleavage of [Ru(bpy) 2 -(4AMP) 2 ] 2+ .Photolysis was carried out in acetonitrile.  ... 
doi:10.1002/anie.201707321 pmid:28941025 pmcid:PMC5725706 fatcat:r3free3xufbuxnwfx2dtigdnci

Page 447 of Abstracts of Photographic Science and Engineering Literature Vol. 9, Issue 9 [page]

1970 Abstracts of Photographic Science and Engineering Literature  
200°C in solution and in solid state.  ...  Alternating current conductance and capacitance experiments have been performed to investigate the space charge distribution in the solid phase near a silver chloride-aqueous solution interface.  ... 

General and physical chemistry

1911 Journal of the Chemical Society Abstracts  
I n contrast to piperidine, forrnylpiperidine is a very weak base, as in aqueous solution.  ...  by alkyl groups, whereas in aqueous solution dimet hylamine is a stronger base than ethylamine or triethylarnine.  ... 
doi:10.1039/ca9110005829 fatcat:m3nt4gijlfgm7gjwiconqkitqi

Artificial antenna systems

Gion Calzaferri
1997 Proceedings of the Indian Academy of sciences. Chemical sciences  
The possibility to arrange zeolite microcrystals of good quality and narrow size distribution as dense monograin layers on different types of substrates allows the discovery of specific properties.  ...  Microcrystals with cylinder morphology and a size in the range of 100 nm have been found to be optimal for realizing collection efficiencies in order of 99%.  ...  Federal Office of Energy.  ... 
doi:10.1007/bf02869205 fatcat:qabonlmlvzev7gqjh6giaeo6bi

Inside/Outside: Post‐Synthetic Modification of the Zr‐Benzophenonedicarboxylate Metal–Organic Framework

Alexander Mohmeyer, Malte Schäfer, Andreas Schaate, Sonja Locmelis, Andreas M. Schneider, Peter Behrens
2020 Chemistry - A European Journal  
The Zr-based metal-organic framework, Zr-bzpdc-MOF, contains the photoreactive linker molecule benzophenone-4,4'-dicarboxylate (bzpdc) which imparts the possibility for photochemical post-synthetic modification  ...  The possibility to direct the post-synthetic modification of the Zr-bzpdc-MOF (selective modification of the whole pore system versus surface modification) gives additional degrees of freedom in the design  ...  Acknowledgements This work was in part funded by the Deutsche Forschungsgemeinschaft (DFG, GermanR esearch Foundation) under Germany's Excellence Strategy within the Cluster of Excellence Phoe-nixD (EXC  ... 
doi:10.1002/chem.201903630 pmid:32017252 pmcid:PMC7065178 fatcat:qycfsl3pdnbrhg7fpvjp2un2ni

Proceedings of the Chemical Society, Vol. 28, No. 406

1912 Proceedings of the Chemical Society London  
L L The change in the boiling points of the trioxide and tetroxide of nitrogen on drying."  ...  t o ballot under Bye-law I (3) in favour of Megsrs.: Queensland. POlY. U.S.A. Of the following papers, those marked 3c were read: "290.  ...  Aqueous solutions of sodium hypochlorite, both neutral and alkaline, are photochemically decomposed, the principal products of decomposition being sodium chloride and oxygen.  ... 
doi:10.1039/pl9122800281 fatcat:rjysv2tlbvb5vhpogld64lc65a

Synthesis of yttrium doped nanocrystalline ZnO and its photocatalytic activity in methylene blue degradation

P.K. Sanoop, S. Anas, S. Ananthakumar, V. Gunasekar, R. Saravanan, V. Ponnusami
2016 Arabian Journal of Chemistry  
Photocatalytic activity of microwave treated Y 3+ doped ZnO was tested by studying the oxidation of methylene blue solution in a batch reactor.  ...  Based on the results obtained from photocatalytic studies, efficiencies of various ZnO samples were found to be in this order: ZnO-A > ZnO-99 > ZnO-95 > ZnO-R that is, Y 3+ doped ZnO was not as effective  ...  Dye degradation studies Comparison of ZnO catalysts In order to examine the UV-catalytic efficiency of the ZnO samples, 150 ml of 80 ppm MB solution was first taken in a beaker and 10 mg of ZnO based  ... 
doi:10.1016/j.arabjc.2012.04.023 fatcat:4o23z6d5fned7jbbu32kuyqudu


1969 The Journal of the Society of Chemical Industry Japan  
Thionine in 0.1 N KCl aqueous solution could not be electrolyzed in the dark at potentials within the range -0.2 to +1.0 V (vs.  ...  l..a.r.t Yt. Yf.!•YY!•.!  ...  The thermal properties of the polymers have been described.  ... 
doi:10.1246/nikkashi1898.72.a1 fatcat:udcv6zb7xrd65izy6lgpzv53wa

General and physical chemistry

H. M. Dawson
1915 Annual Reports on the Progress of Chemistry  
The success achieved by Bohr in the explanation of the series spectra of hydrogen and helium by application of the quantum hypothesis to Rutherford's model of the atom was described in last year's Report  ...  The work under review covers a considerable number of papers published in Continental journals during the second half of 1914, and, in these circumstances, the volume of original research falling within  ...  reactions in aqueous solution.  ... 
doi:10.1039/ar9151200001 fatcat:cpj3bqblivaszdlzvoftcvwlc4

Dinuclear Cobalt Complexes with a Decadentate Ligand Scaffold: Hydrogen Evolution and Oxygen Reduction Catalysis

Carlo Di Giovanni, Carolina Gimbert-Suriñach, Michael Nippe, Jordi Benet-Buchholz, Jeffrey R. Long, Xavier Sala, Antoni Llobet
2015 Chemistry - A European Journal  
The flexible buts table coordination environment providedb yt he ligands caffold when coordi-natingCo in different oxidation statesisshown to play acrucial role in the performance of the set of complexes  ...  Four new dinuclear cobalt complexes featuring this ligand have been prepareda nd thoroughly characterized both in the solid state (X-ray diffraction) and in solution (1D and 2D NMR spectroscopy,E SI-MS  ...  Photochemical hydrogen evolution reaction (HER) catalysis with complex 3(OTf) 2 The ability of complex 3 2 + + to catalyze proton reduction was tested under photochemical conditions in aqueous solution  ... 
doi:10.1002/chem.201503567 pmid:26608517 fatcat:jjfcrafu6vbx7pohheldzsonca

Study on Photochromism of Amphiphilic Spiropyran Monolayers by Surface Reflection

Koji Shiratori, Toshihiko Nagamura
2001 Journal of Photopolymer Science and Technology (Fotoporima Konwakai shi)  
The latter corresponded to the peak of aggregates observed in non-polar solutions.  ...  SP98 in mixtures with arachidic acid formed stable monolayers on pure water or on a subphase containing Cd2+. Colored photomerocyanine (PMC98) was formed at the air-water interface by UVirradiation.  ...  Many efforts have been made to synthesize photochromic compounds with superior chemical and photochemical properties, to elucidate both photoand thermal-reactions, and to apply them in optical devices  ... 
doi:10.2494/photopolymer.14.233 fatcat:lu42vjpqxncf7aqiq5vjso52du

Electrospun Polymer Nanofibers Decorated with Noble Metal Nanoparticles for Chemical Sensing

Chen Chen, Yongan Tang, Branislav Vlahovic, Fei Yan
2017 Nanoscale Research Letters  
properties, yields novel hybrid nanoscale systems of synergistic properties and functions.  ...  The integration of different noble metal nanostructures, which exhibit desirable plasmonic and/or electrocatalytic properties, with electrospun polymer nanofibers, which display unique mechanical and thermodynamic  ...  Synthesis of Ag Nanostructures Use of citrate as the reducing agent for Ag colloid synthesis in an aqueous solution has been discovered for decades.  ... 
doi:10.1186/s11671-017-2216-4 pmid:28704979 pmcid:PMC5505893 fatcat:43gywfwejnhadaenmxfvfjjpxy

General and physical chemistry

1908 Journal of the Chemical Society Abstracts  
of both amines (both largely in excess of the acid) are added to R M/100 solution of the acid.  ...  solutions (2) from that of solutions (l), showing that the aliphatic amine campborcarboxylates are undissociated, or only very slightly dissociated, in solution.  ...  From these observations, the author draws the conclusion t h a t t h e metals, per se, have no photochemical properties, and t h a t the observed photochemical effects are dependent on the presence of  ... 
doi:10.1039/ca9089405137 fatcat:7nuesm6yobgqxmvijdipzx3iqy
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