Results 71 to 80 of about 47,136 (264)

Comparative photodynamic inactivation of bioluminescent E. coli by pyridinium and inverted pyridinium chlorins [PDF]

, 2020
Photodynamic inactivation (PDI) is a therapeutic approach in study due to the ability to reduce or completely eliminate the bacterial strains without the development of resistance mechanisms.
Lourenço, Leandro M.O., Calmeiro, Joana M.D., Almeida, Adelaide, Dias, Cristina J., Ramos, Catarina I.V., Tomé, João P.C., Faustino, Maria A.F.   +6 more
core   +1 more source

Simplexidine, a 4-Alkylpyridinium Alkaloid from the Caribbean Sponge Plakortis simplex

Molecules, 2008
Chemical analysis of the secondary metabolites of the Caribbean sponge Plakortis simplex, a source of many bioactive compounds, showed the presence of the new metabolite simplexidine (4), belonging to the extremely rare class of 4-alkyl-pyridinium ...
Orazio Taglialatela-Scafati, Fernando Scala, Adriana Romano, Ernesto Fattorusso   +3 more
doaj   +1 more source

2-(Hydroxymethyl)pyridinium chloride [PDF]

Acta Crystallographica Section E Structure Reports Online, 2008
In the title molecular salt, C(6)H(8)NO(+)·Cl(-), the packing is consolidated by N-H⋯Cl and O-H⋯Cl hydrogen bonds, resulting in the formation of [010] chains of alternating cations and anions.
Leigh Anna M. Ottley, Mark A. Rodriguez, Timothy J. Boyle   +2 more
openaire   +3 more sources

A Pyridinium Ylide-alkylation Strategy for the Structural Diversification of N-Carbamoyl Pyridinium Salts

A pyridinium-ylide alkylation strategy has been developed for accessing N,N-disubstituted carbamoyl pyridinium salts that possess multiple nucleophilic sites.
Michael, Taylor, Benjamin, Gossett, Akash, Sarkar   +2 more
core   +1 more source

Cetyl-pyridinium chloride is useful for isolation of Mycobacterium tuberculosis from sputa subjected to long-term storage.

, 2005
Recovery of Mycobacterium tuberculosis from sputa treated with cetyl-pyridinium chloride (CPC) and stored for 20 +/- 9 days was significantly higher than that from sputa that were untreated and processed by the N-acetyl-L-cisteine-NaOH method.
Orefici, Graziella, Varaine, Francis, Iona, Elisabetta, Arzumanian, Erchanik, Varaine, F, Fattorini, L, Fattorini, Lanfranco, Orefici, G, Arzumanian, E, Checchi, F, Checchi, Francesco, Iona, E, Oggioni, Marco Rinaldo, Pardini, Manuela, Oggioni, M R, Pardini, M   +15 more
core   +2 more sources

Crystal structure of 2-cyano-1-methylpyridinium perchlorate

Acta Crystallographica Section E: Crystallographic Communications, 2015
The asymmetric unit of the title salt, C7H7N2+·ClO4−, comprises two independent formula units. The solid-state structure comprises corrugated layers of cations and of anions, approximately parallel to (010).
Vu D. Nguyen, Cameron A. McCormick, Joel T. Mague, Lynn V. Koplitz   +3 more
doaj   +1 more source

2-(Dihydroxymethyl)pyridinium chloride [PDF]

Acta Crystallographica Section E Structure Reports Online, 2010
In the title compound, C(6)H(8)NO(2) (+)·Cl(-), inter-molecular O-H⋯Cl and N-H⋯Cl hydrogen bonds are observed in which each chloride anion links three adjacent cations into a hydrogen-bond network.
Hui-Fen Qian, Wei Huang
openaire   +3 more sources

Sterisch überfrachtete Alken‐Photo‐Redox‐Schalter auf Basis von Chinolinium/Carben Bausteinen

Angewandte Chemie, EarlyView.
Eine modulare Synthese einer neuen Klasse von Photo‐ und Redox‐Schaltern wird beschrieben, die auf der Kombination von Chinoliniumsalzen und Carbenen basiert. Das photochemische Schalten ermöglicht einen selektiven Wechsel zwischen gefalteten E/Z‐Isomeren, während das elektrochemische Schalten den Wechsel zwischen neutralen, radikalkationischen und ...
Chris Burdenski, Patrick W. Antoni, Marcel E. Baumert, Leonie Ziemann, Samaresh C. Sau, Julian J. Holstein, Maria Castro, Nitin Kumar, Ofer Filiba, Igor Schapiro, Max M. Hansmann   +10 more
wiley   +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), Frances L. Cozens (2333680), Benjamin M. Fregeau (2333683)   +2 more
core   +1 more source

Anion Influence on the Packing of 1,3-Bis(4-Ethynyl-3-Iodopyridinium)-Benzene Halogen Bond Receptors

Crystals, 2019
Rigid and directional arylethynyl scaffolds have been widely successful across diverse areas of chemistry. Utilizing this platform, we present three new structures of a dicationic 1,3-bis(4-ethynyl-3-iodopyridinium)-benzene halogen bonding receptor with ...
Daniel A. Decato, Asia Marie S. Riel, Orion B. Berryman   +2 more
doaj   +1 more source