Results 81 to 90 of about 60,238 (275)
Angewandte Chemie, EarlyView.Die Click‐Chemie hat sich von dem Aufbau kovalenter Bindungen hin zum Spalten von Bindungen weiterentwickelt. Hier wird über einen Kaskaden‐Aufbau berichtet, der diese Verfahren kombiniert, um multifunktionale biomolekulare Gerüste in einer modularen Ein‐Topf‐Reaktion aufzubauen.
Markus Staudt +9 more
wiley +1 more source
2-Aminopyridinium 2,4-dinitrophenolate
IUCrData, 2016 The asymmetric unit of the title organic salt, C5H7N2+·C6H3N2O5−, comprises two 2-aminopyridinium cations and two 2,4-dinitrophenolate anions. The cations are protonated at the pyridine N atoms, while the anions are deprotonated at hydroxyl O atoms.
S. Reena Devi +4 more
doaj +1 more source
Reactivity of Halo(pyridinium)carbenes
, 2016 The reactivity of chloro- and fluoro(N-methyl-3-pyridinium)carbenes was examined by laser flash photolysis, where the halo(pyridinium)carbenes formed ylides with pyridine, acetonitrile, and acetone.
Reinaldo Moya-Barrios (2333677) +2 more
core +1 more source
Pyridinium dichlorophosphinomethylides
Heteroatom Chemistry, 2001 AbstractSeven new pyridinium dichlorophosphinomethylides 2 have been obtained from dichlorophosphinylation of the pyridinium methylides generated in situ. 2 give 1,3‐bis(alkoxycarbonyl)‐2‐phosphaindolizines 4 through 1,5‐electrocyclization of the intermediate, bis(pyridinium ylidyl)phosphenium chloride 3 which is generated either from ...
Raj K. Bansal +4 more
openaire +1 more source
Ionic Hydrogenation of Pyridinium and Azetidinium Cations [PDF]
, 2017 Research described herein seeks to study the reactivity of CpRu(P-P)H with pyridinium and azetidinium cations. For the former, we wish to determine if a previously established methodology for the regioselective reduction of a particular pyridinium ...
Yang, Zheren Jim
core +1 more source
Beilstein Journal of Organic ChemistryEfficient water-solubilization of nanocarbons is desirable for both their biological and material applications, but so far has mainly relied on covalent modifications or amphiphiles featuring ionic side-chains. Here, we report a facile 2–4-step synthesis
Lorenzo Catti +2 more
doaj +1 more source
Acta Crystallographica Section E: Crystallographic Communications, 2018 The title compound {systematic name: 3-carboxy-2-[2-(3-carboxypyridin-2-yl)disulfan-1-yl)]pyridin-1-ium chloride monohydrate}, C12H9N2O4S2+·Cl−·H2O, crystallizes in the triclinic space group P\overline{1}.
Alexander T. Chemey +2 more
doaj +1 more source
Crystal structure of pyridinium tetraisothiocyanatodipyridinechromium(III) pyridine monosolvate
Acta Crystallographica Section E: Crystallographic Communications, 2019 In the crystal structure of the title compound, (C5H6N)[Cr(NCS)4(C5H5N)2]·C5H5N, the CrIII ions are octahedrally coordinated by four N-bonding thiocyanate anions and two pyridine ligands into discrete negatively charged complexes, with the CrIII ion, as ...
Tristan Neumann +2 more
doaj +1 more source
Near Infrared Photoswitching by Direct Excitation—A Next Frontier
Angewandte Chemie International Edition, EarlyView.Molecular photoswitches finally enter the spectral realm of near‐infrared for their direct excitation. This minireview summarizes the current state‐of‐the‐art, the design principles for achieving such low‐energy light responsiveness, and the unique applications that are unlocked by it.
Diptiprava Sahoo +2 more
wiley +1 more source
, 2017 Inelastic Neutron Scattering spectrum of Pyridinium chloride, C₅H₆ClN, measured on the TFXA ...
C. B. Jasciezek, U. of Sussex, UK
core +1 more source