Results 131 to 140 of about 87,218 (244)

Demonstration of Quantitative Mid-Infrared Hydrocarbon Aerosol Absorption Spectroscopy Using a Dual-Cell Photoacoustic System. [PDF]

Anal Chem
Shah JS, Rahman A, Ashfaq RK, Raza MH, Leits B, Urbán I, Fodor B, Makai L, Petrik P, Mehmood MQ, Szabó G, Bozóki Z, Chong CT, Ajtai T.   +13 more
europepmc   +1 more source

Mild C─F Activation of Azido(per)Fluoroalkanes

Chemistry – A European Journal, EarlyView.
Mild and selective activation of C(sp3)–F bonds in azido(per)fluoroalkanes using thiolates was developed, leading to novel functionalized azides. The reaction is initiated by nucleophilic attack of the sulfur atom to the terminal nitrogen of the azido group, followed by fluoride ion elimination.
Olena Shaitanova, María Martínez Mallo, Sergii Suikov, Blanka Klepetářová, Josef Filgas, Petr Slavíček, Lucie Bednárová, Petr Beier   +7 more
wiley   +1 more source

Research on the Flammability Limits of R1234yf/R290 and R1234ze(E)/R290 Mixtures

Zhileng xuebao
Propane (R290) is a potential refrigerant substitute for household air conditioners. However, its flammability limits its application. In this study, the flammability limits of R290, 2,3,3,3-tetrafluoropropene (R1234yf), trans-1,3,3,3-tetrafluoropropene (
Shen Jun, Huang Yujie, Zhong Quan, Shi Hechun, Li Huajie, Zhao Huan   +5 more
doaj  

Efficient and durable light-alkane oxidation over sintered Pt catalysts. [PDF]

Nat Commun
Tang X, You Y, Ying L, Zhu B, Zhan W, Guo Y, Dai S.   +6 more
europepmc   +1 more source

β‐Ketonitrile‐Modified Prodan Derivatives as Large‐Stokes‐Shift Solvatochromic Fluorophores With Enhanced Brightness and Ratiometric Thermometric Response

Chemistry – A European Journal, EarlyView.
We report a systematic study of β‐ketonitrile–modified Prodan‐type solvatochromic fluorophores. The β‐ketonitrile substitution induces marked bathochromic shifts in absorption and emission and significantly enhances fluorescence quantum yields in nonpolar solvents.
Hiroaki Asakawa, Takuya Tanaka, Kensei Konishi, Gen‐ichi Konishi   +3 more
wiley   +1 more source

Inexpensive Hydrogen Storage: Propylene to Propane using Plasmonic Photocatalysis. [PDF]

Nano Lett
Carroll A, Dhindsa P, Ahrens A, Nunes Barbosa ML, Ahmad AA, Craft N, Deneen S, Nordlander P, Halas NJ.   +8 more
europepmc   +1 more source

Non‐Covalent Fluorine–Silica Anchoring of a Molecular Platinum(II) bis(NHC) Catalyst: Structure, Interface Control, and Hydrosilylation Activity

Chemistry – A European Journal, EarlyView.
A Pt(II) bis(NHC) complex is immobilized on mesoporous silica through directional F–Si interactions encoded in the ligand framework. Quantitative 19F{29Si} REDOR experiments and molecular dynamics simulations establish Å‐scale catalyst–support contacts and define the interfacial organization.
Alexander Bergen, Cindy‐Ly Tavera‐Méndez, Valentina Eichhorn, Philip Maier, Elias Harrer, Andreas Scheurer, Frank W. Heinemann, Dirk Zahn, Martin Hartmann, Dorothea Wisser, Karsten Meyer   +10 more
wiley   +1 more source

Process-separated cascade catalysis for highly efficient alkane-to-aromatic conversion. [PDF]

Nat Commun
Cai J, Xiao H, Wang Q, Fu J, Yang P, Zhu J, Tian K, Fu D, Pei C, Zhao ZJ, Ma X, Chen S, Gong J.   +12 more
europepmc   +1 more source

Propane gas price increases

, 1997
"January 30, 1997."; Discusses why the price of propane gas has risen from $1.09 per gallon in October to $1.63. Also discusses whether propane vendors are required to place a gauge on propane tanks.; Harvested from the web on 4/7 ...
McCarthy, Kevin E. (Kevin Edward), 1954-
core  

Electrochemical Fluorination of Partially Fluorinated Dialkylethers. Synthesis of Sevoflurane Derivatives (CF3)2CHOCHF2, (CF3)2CHOCF3, and (CF3)2CFOCF3

Chemistry – A European Journal, EarlyView.
Electrochemical fluorination (ECF, Simons process) is a valuable method for the fluorination of partially fluorinated dialkyl ethers, providing an inexpensive, scalable, and safe access to partially fluorinated ethers with a higher fluorine content and the perfluorinated analogues that are hardly accessible using other fluorination techniques ...
Tanja Knuplez, Leon N. Schneider, Erik R. Csapo, Peer Kirsch, Nikolai V. Ignat'ev, Maik Finze   +5 more
wiley   +1 more source