New solid complexes of europium, uranyl and zinc ions with N-oxides of 4-chloro-2,6-dimethylpyridine, quinoline and 4-methoxyquinaldinic acid in presence different anions were obtained and characterized by elemental and TG analyses, IR and luminescence spectra. The compounds are crystalline, hyd...

The synthesis and structural characterization of six new d10 Cd(II) and Zn(II) thiocyanato complexes with pyridine-N-oxide compounds: the polymeric catena-[Cd(μ2-2-picoline-N-oxide)(μN,S-NCS)2] (1), catena-[Cd(μ2-3-picoline-N-oxide)(μN,S-NCS)2] (2), catena-[Cd(4-nitropyridine-N-oxide)2(μN,S...

The synthesis and structural characterization of three new mixed d10 metal pseudohalide complexes with quinoline-N-oxide, namely [Zn(quinoline-N-oxide)6][Zn(NCS)4] (1), [Zn(quinoline-N-oxide)(μ1,1-N3)2]n (2) and [Cd(μ-quinoline-N-oxide)(μN,S-NCS)2]n (3) are reported. Single crystal structure ...

A method is presented for the rapid identification of tertiary aliphatic and aromatic N-oxide functionalities in protonated analytes via ion-molecule reactions with dimethylamine (DMA) in a linear quadrupole ion trap mass spectrometer (LQIT). DMA was leaked into the trapping region of the mass s...

1. A stacking interaction of 6-methoxypurine in water has been demonstrated by analysis of NMR chemical shift data. The compound is an example of a substituted purine whose solubility in water is too low to yield significant data by itself. However, a technique is described for studying the comp...

A detail theoretical study has been performed using Density functional theory (DFT) and Time dependent DFT (TDDFT) to investigate the Intramolecular Proton Transfer (IPT) mechanism in Indole-7-carboxaldehyde (I7C) from its normal (I*) to zwitterion (II*) form. B3LYP/6-311++G (d, p) basis set has...

Encapsulation of Indole-7-Carboxaldehyde (I7C) inside nano sized cyclodextrin (α-, β-, γ-) cavities have been investigated by theoretical (PM3, HF, DFT, ONIOM methods) and experimental (UV–VIS, IR spectroscopy) results. β- cyclodextrin (CD) provides best trapping ability as its cavity size ...

Excited state intramolecular proton transfer (ESIPT) has been studied in Indole-7-Carboxaldehyde (I7C). DFT, TDDFT, CIS theories with B3LYP/6-311++G (d, p), etc. basis sets have been used to obtain structural parameters and energies of I7C in ground, excited states for cis (Nc), trans (Nt) and z...

A one-pot synthesis of new polycyclic heterocyclic compounds was carried out via the condensation of 1-carbamoylmethyl-2,3,3-trimethyl-3H-indolium chloride with pyridine- and quinolinecarboxaldehydes. The heating of the aforementioned 3H-indolium salts with 1 eq. of pyridine-2, 3, and 4- or quin...

Tryptophan derivatives have long been used as site-specific fluorescent probes. 4-Cyanotryptophan emits in the visible region and is the smallest blue fluorescent amino acid probe. We performed UV-Vis, steady-state and time-resolved fluorescence spectroscopy on six aldehyde-derivatized indoles d...

Excited state dissociation dynamics of indole-x-carboxaldehyde (x = 4, 5, 6, 7) has been investigated by ab initio calculations and photodissociation in a molecular beam at 193 nm using multimass ion imaging techniques. It was found that dissociation processes strongly depends on the position of...

Understanding the chemical composition of organic nitrogen compounds (ONCs) in biomass and its derived liquids is important because of their negative impacts on the environment during biomass utilization as fuel. In this study, X-ray photoelectron spectrometer (XPS) was used to identify the nitr...

The identification and structural elucidation of the novel synthetic cannabimimetic 8-quinolinyl 4-methyl-3-(1-piperidinylsulfonyl)benzoate (QMPSB) by GC-MS, LC-MS and NMR is reported. QMPSB was identified in Queensland, Australia on plant material packaged as herbal incense. The identification ...

3-Benzyl-2-((3-methoxybenzyl)thio)benzo[g]quinazolin-4(3H)-one was previously synthesized and proved by physicochemical analyses (HRMS, 1H and 13C NMR). The target compound was examined for its radioactivity and the results showed that benzo[g]quinazoline was successfully labeled with radioactiv...

Although several fluorescent analogs of the PYP Fluorophore have been studied so far, the focus has been overwhelmingly on the effect of the electron-withdrawing carbonyl end substituent of the fluorophore. Here, we have introduced for the first time, a PYP Fluorophore analog named pDMACT where ...

Several dimethylamino-derivatives of the new compound-class 3-azabicyclo[3.2.2]nonanes were prepared. For better comparison of activity also a few analogues of bicyclo[2.2.2]octanes and 2-azabicyclo[3.2.2]nonanes were synthesized. Their activities were examined in vitro against the multiresistan...

Phosphatidylinositol 3-kinase (PI3K) is a pivotal regulator of intracellular signaling pathways and considered as a promising target in the development of a therapeutic treatment of cancer. Among the different PI3K subtypes, the PIK3CA gene encoding PI3K p110α is frequently mutated and overexpr...

A novel approach to pyrrole ring closure in 2-trifluoroacetyl- and 2-ethoxycarbonyl-1,8-bis(dimethylamino)naphthalenes via treatment with 2-lithium-1,8-bis(dimethylamino)naphthalene producing the corresponding benzo[g]indole derivatives, was examined with different alkyl- and aryllithium compoun...

Zwitter ionic macro molecules can be prepared to provide functional materials applicable in various different fields such as catalysis, cleaning industry, textile industry, cosmetics and drugs with the enhanced solubility both in organic solvent and aqueous media. Tetra {4-[N-((3-dimethylamino)p...

To the best of our knowledge, this is first report describing generation of Michael acceptor via electrochemical reduction. In this work, electrochemical reduction of 4-nitroso-N,N-dimethylaniline has been studied in the presence of arylsulfinic acids in aqueous solutions. The cathodically gener...