Results 41 to 50 of about 23,656 (192)

Synthesis of Symmetrical and Unsymmetrical Pyrazines [PDF]

open access: yesThe Journal of Organic Chemistry, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Douglass F, Taber   +2 more
openaire   +3 more sources

Ground and Excited State Properties and Vibronic Coupling Analysis of the Creutz−Taube Ion, [(NH3)5Ru-pyrazine-Ru(NH3)5]5+, Using DFT

open access: yes, 2016
In this paper we analyze using Density Functional Theory (DFT) the electronic structure of the Creutz−Taube ion, [(NH3)5Ru-pyrazine-Ru(NH3)5]5+, a classical example of a mixed-valence complex.
Alessandro Ferretti (1594198)   +3 more
core   +1 more source

Review on the Synthesis of Pyrazine and Its Derivatives [PDF]

open access: yes, 2017
Pyrazine is a kind of natural product which can be found in plants, animals, insects, marine organisms andmicroorganisms. The main function of pyrazine in living organisms is used as flavor of the raw foods.
TAY, MENG GUAN   +2 more
core   +1 more source

Hidden ordered structure in the archetypical Fe(pyrazine)[Pt(CN)4 ] spin-crossover porous coordination compound [PDF]

open access: yes, 2022
Despite the fact that Fe(pyrazine)[MII (CN)4] (where MII is a metal in open square-planar configuration, namely Pt, Pd, Ni) is one of the most thoroughly studied families of spin-crossover compounds, its actual structure has remained imprecisely known up
Angel, Fernandez Blanco   +13 more
core   +2 more sources

Scientific Opinion on Flavouring Group Evaluation 17, Revision 2 (FGE.17Rev2): Pyrazine derivatives from chemical group 24

open access: yesEFSA Journal, 2011
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to evaluate 21 flavouring substances in the Flavouring Group Evaluation 17, Revision 2, using the Procedure in Commission ...
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Crystal structure of catena-poly[[(dimethyl sulfoxide-κO)(pyridine-2,6-dicarboxylato-κ3O,N,O′)nickel(II)]-μ-pyrazine-κ2N:N′]

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The title coordination polymer, [Ni(C7H3NO4)(C4H4N2)(C2H6OS)]n, consists of [010] chains composed of NiII ions linked by bis-monodentate-bridging pyrazine molecules. Each of the two crystallographically distinct NiII ions is located on a mirror plane and
Chen Liu   +4 more
doaj   +1 more source

Complexes of Uranium and Thorium with Pyrazine and Pyrazine Amides

open access: yes, 1981
Chemistry Division, Bhabha. Atomic Research Centre, Trombay, Bombay-400 085 Manuscript received 30 October 1978, revised 28 August 1980, accepted 28 January 1981 Reactions of uranium tetrachloride, uranyl nitrate and thorium nitrate with pyrazine (Pyz), pyrazine 2-carboxamide (Pyza) and pyrazine 2, 3-dicarboxamide (Pyzda) have been carried out to study
S. C. JAIN, M. S. GILL, G. S. RAO
openaire   +2 more sources

5,31-Diaza-2,8,15,18,21,28,34,41,44,47-decaoxaheptacyclo[46.4.0.04,32.06,30.09,14.022,27.035,40]dopentaconta-1(48),4,6(30),9(14),10,12,22(27),23,25,31,35(40),36,38,49,51-pentadecaene monohydrate

open access: yesIUCrData, 2016
In the title compound, C40H40N2O10·H2O, each dual 17-crown-5 unit crystallizes with one solvent water molecule. The crown units are connected by a pyrazine ring. One oxo group in a crown moiety is disordered over two sites, with a refined occupancy ratio
Jong Sik Kim   +4 more
doaj   +1 more source

Out with Acetonitrile: Water-Assisted Accelerated-Aging Synthesis of CuI-Pyrazine Hybrid Materials

open access: yes, 2022
CuI and pyrazine form three hybrid materials, [(CuI)2(pyrazine)] (Yellow), [(CuI)2(pyrazine)2] (Orange), and [(CuI)­(pyrazine)] (Red). In this work, Red was prepared using a green synthetic method, water-assisted accelerated-aging synthesis, for the ...
Will A. Lucas   +3 more
core   +1 more source

High‐Efficiency and Stable Perovskite Solar Cells Enabled by Halogen‐Free Cosolvent‐Processed Pyrazine‐Based Dopant‐Free Hole Transport Material

open access: yesEcoMat
The complex molecular structures of electron donor (D)–acceptor (A) polymers provide a wealth of useful hints for producing high power conversion efficiency (PCE) as hole transport materials (HTMs) in perovskite solar cells (PVSCs).
Chetan Lakshman   +7 more
doaj   +1 more source

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