The 2-alkoxyimidate-1,10-phenanthroline complexes of manganese, cobalt and nickel have been synthesized by the reaction of 2-cyano-1,10-phenanthroline with metal dichloride in the corresponding alcohol. The metal complexes bearing two 2-cyano-1,10-phenanthrolines were isolated in non-protonic so...

The liquid-liquid-vapor loci for the binary mixtures CO2 + n-pentadecylbenzene and CO2 + n-nonylbenzene were studied experimentally. We report here the composition and molar volume of each of the liquid phases along with pressure and temperature. In addition, the solid-liquid-vapor locus for the...

The present work deals with a study of interactions between reactions of photo-oxidation and reactions of bacterial degradation of alkylbenzenes (particularly of n-nonylbenzene) in seawater. The mechanisms involved in these interactions have been determined, and it was proved that these phenomen...

The TlI complex of 1,3-diphenylpropane-1,3-dionate (dibenzoylmethanide, DBM−), [Tl2(DBM)2]n, has been synthesized and characterized. The single-crystal X-ray data show there are two different Tl environments. One type of Tl-atom in the TlO4C6Tl2 environment is twelve-coordinated, with two weak T...

The synthesis and characterization of uranyl 1,3-diphenylpropane-1,3-dionato (benzoylacetonate, ba) complexes with N-adamantylacetamide, 2-azacyclononanone and triphenylphosphine oxide, with general formula UO2(ba)2L are described. They were characterized by infrared, Raman and emission spectros...

Three new (1a/1b and 2b) and five known flavans (2a, 6a/6b, 7, and 8), one new flavan glycoside (3), and two new (4 and 5) and six known 1,3-diphenylpropanes (9–14) were isolated from the twigs of Broussonetia kazinoki. Compounds 1, 2, and 6 are scalemic mixtures, and were resolved by chiral HP...

The fragmentation of gaseous ion/neutral complexes [R+⋯C6H5CH2CH2CH2C6H4–R′] with (i) R = R′ = C4H9, (ii) R = C4H9 and R′ = CH3 and (iii) R = C6H11 and R′ = H has been studied by CI(CH4)-MIKE spectrometry of the corresponding alkyl-substituted 1,3-diphenylpropanes. Different from all other ...

The DFT modeling of novel synthesized azoderivatives of β-diketones – 2-(2-(2-hydroxyphenyl)hydrazono)-1,3-diphenylpropane-1,3-dione (1), 2-(2-(2-hydroxy-4-nitrophenyl)hydrazono)-1,3-diphenylpropane-1,3-dione (2), 3-(2-(1,3-dioxo-1,3-diphenylpropan-2-ylidene)hydrazinyl)-2-hydroxy-5-nitrobenzen...

UV absorption spectra of 1,3-diphenylpropane-1,3-dione (1), its three methoxy derivatives (2–4) and its six dimethoxy derivatives (5–10) in various solvents dissolved were collected. The keto–enol tautomerism equilibrium constant was calculated with 1H NMR. The position of the methoxy group i...

Six 1,3-diphenylpropanes exhibiting inhibitory activities against both the monophenolase and diphenolase actions of tyrosinase were isolated from the methanol (95%) extract of Broussonetia kazinoki. These compounds, 1–6, were identified as kazinol C (1), D (2), F (3), broussonin C (4), kazinol ...

One new 1,3-diphenylpropane (1) together with six known analogues (2–7) were firstly isolated from the stem and root bark of Daphne giraldii. Their structures were determined by comprehensive NMR and HRESIMS spectroscopic data analyses. All the isolates were evaluated for their cytotoxicity aga...

The kinetic method is based on the catalytic effect of copper(II) on the atmospheric oxidation of 1,3-cyclopentanedione bis(4-methylthiosemicarbazone) monohydrochloride. The reaction is followed spectrophotometrically at 390 nm. The kinetic parameters of the reaction are reported and a rate equa...

IntroductionThe pyruvaldehyde bis(N4-methylthiosemicarbazonato)copper(II) (Cu-PTSM) and diacetyl bis(N4-methylthiosemicarbazonato)copper(II) (Cu-ATSM) radiopharmaceuticals exhibit strong, species-dependent binding to the IIA site of human serum albumin (HSA), while the related ethylglyoxal bis(t...

Formaldehyde is a toxic component that is present in foundry resins. Its quantification is important to the characterisation of the resin (kind and degradation) as well as for the evaluation of free contaminants present in wastes generated by the foundry industry. The complexity of the matrices ...

A chemometric approach was utilized to identify an artifact peak co-eluting with formaldehyde-2,4-dinitophenylhydrazone. Application of the methods of principal component analysis to the mass spectra of the formaldehyde-hydrazone peaks collected at 200–280 °C has revealed the presence of two f...

Formaldehyde is toxic and has been implicated in the pathologies of various diseases, such as cognitive impairment and cancer. Though d-ribose is widely studied and provided as a supplement to food such as flavor and drinks, no laboratories have reported that d-ribose is involved in the formalde...

Indoleamine 2,3-dioxygenase 1 (IDO1) and tryptophan 2,3-dioxygenase (TDO) are constitutively overexpressed in many types of cancer cells and exert important immunosuppressive functions. In this article, a series of 4,6-substituted-1H-indazole derivatives were synthesized and evaluated the inhibi...

Novel conjugated donor-acceptor chromophores, based on the strong electron donating tetrathiafulvalene moiety and the strong electron-withdrawing 3-(dicyanomethylidene)indan-1-one acceptor, exhibit large second-order optical nonlinearities. The effect of increasing the length of the polyenic spa...

Gram-negative bacteria are implicated in the causation of life-threatening hospital-acquired infections. They acquire rapid resistance to multiple drugs and available antibiotics. Hence, there is the need to discover new antibacterial agents with novel scaffolds. For the first time, this study e...

N-p-tosylglycine, which inhibits transglutaminase activity in islet homogenates, was found to cause a rapid and sustained facilitation of insulin release evoked by D-glucose, L-leucine or the association of Ba2+ and theophylline in intact islets. Such a facilitating action could not be attribute...