Results 31 to 40 of about 73,933 (268)
A Dicationic Calix 4 Pyrrole Derivative and Its Use for the Selective Recognition and Displacement-Based Sensing of Pyrophosphate [PDF]
, 2012 A new bis-pyridinium calix[4] pyrrole derivative is reported. This system forms a non-fluorescent complex upon exposure to the chromenolate anion. The resulting supramolecular ensemble binds the pyrophosphate anion with high affinity (K-a (2.55 +/- 0.12)
Hwang, Hyonseok +4 more
core +1 more source
Pyridinium based amphiphilic hydrogelators as potential antibacterial agents
Beilstein Journal of Organic Chemistry, 2010 The numerous applications of hydrogelators have led to rapid expansion of this field. In the present work we report the facile synthesis of amphiphilic hydrogelators having a quaternary pyridinium unit coupled to a hydrophobic long alkyl chain through an
Sayanti Brahmachari +3 more
doaj +1 more source
How DASPMI reveals mitochondrial membrane potential : fluorescence decay kinetics and steady-state anisotropy in living cells [PDF]
, 2008 Spectroscopic responses of the potentiometric probe 2-(4-(dimethylamino)styryl)-1-methylpyridinium iodide (DASPMI) were investigated in living cells by means of a time- and space-correlated single photon counting technique.
Ramadass, Radhan, Bereiter-Hahn, Jürgen
core +1 more source
3-(Ammoniomethyl)pyridinium dibromide [PDF]
Acta Crystallographica Section E Structure Reports Online, 2012 In the title salt, C(6)H(10)N(2) (2+)·2Br(-), the non-H atoms of the 3-methyl-pyridinium unit of the cation are almost coplanar (r.m.s. deviation = 0.0052 Å). In the crystal, the dications and Br anions are linked by a combination of six hydrogen bonds, viz.
Ali, Basem F. +2 more
openaire +2 more sources
Synthesis, Chemistry and Applications of 5-Hydroxymethyl-furfural And Its Derivatives [PDF]
, 2001 The prospect of exciting research activity in the chemistry of furfural derived compounds such as 5-hydroxymethylfurfural (HMF), 2,5-furandicarbaldehyde and 2,5-furan-dicarboxylic acid prompted the writing of this article.
Lewkowski, Jarosław
core +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
Direct methane conversion to methanol by ionic liquid-dissolved platinum catalysts [PDF]
, 2006 Ternary systems of inorganic Pt salts and oxides, ionic liquids and concentrated sulfuric acid are effective at catalyzing the direct, selective oxidation of methane to methanol and appear to be more water tolerant than the Catalytica ...
Cheng, Jihong +3 more
core +2 more sources
Molecules, 2023 Heteroarene 1, n-zwitterions are powerful and versatile building blocks in the construction of heterocycles and have received increasing attention in recent years.
Zhen-Hua Wang +5 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 +2 more
openaire +3 more sources
Photodegradation of nimodipine and felodipine in microheterogeneous systems [PDF]
, 2012 Indexación: Web of Science; ScieloThe photochemical behavior of nimodipine (NIMO) and felodipine (FELO), photolabile drugs widely used as antihypertensive calcium channel blockers, is studied in constrained media.
Brito, Julio +6 more
core +1 more source