The title systems lead to the haloferrate(III) salt of the large 3,5-bis(N,N-dimethyliminium)-1,2,4-trithiolane cation. Oxidation of the iron(III) dithiocarbamates occurs stepwise through the formation of several intermediates, which are isolated and characterized. An alternative route to the ox...

Partition coefficients of nickel(II) chelates with thenoyltrifluoroacetone (Htta) and dimethyldithiocarbamic acid (Hdmdtc) into various organic solvents were measured at 25°C. The effect of solvent on the partitition coefficients was evaluated with the aid of a modified equation of the regular ...

Properties of the reactions of dithiocarbamates and their Cu(II) or Fe(III) complexes with Ehrlich cells were determined and related to their effects on the inhibition of cell proliferation caused by bleomycin and Cu bleomycin. In complete culture medium containing Eagle's minimal essential...

The heat capacity of bromobis(N,N-dimethyldithiocarbamato)iron(III) was measured between 0.4 and 300 K. A phase transition from a ferromagnetic to a paramagnetic state was found at Tc = (0.837 ± 0.005) K, and a Schottky anomaly arising from the zero-field splitting was observed around 9 K. The ...

Gold(III) compounds have received increasing attention in cancer research. Three gold complexes of general formula [AuIIIL]Cl, where L is benzil bis(thiosemicarbazonate), compound 1, benzil bis(4-methyl-3-thiosemicarbazonate), compound 2, or benzil bis(4-cyclohexyl-3-thiosemicarbazonate), compou...

The effects of treatment with calcium l-ascorbate, l-ascorbic dipalmitate, l-ascorbic stearate and erythorbic acid on two-stage urinary bladder carcinogenesis in F344 rats after initiation with N-butyl-N-(4-hydroxybutyl)nitrosamine (BBN) were examined. Carcinogen was administered at a dose of 0....

New methodology for difluoromethylation and difluoromethylenation of aldehydes and ketones based on nucleophilic fluorination using diethyl difluoromethylphosphonate (1) was developed.

Optically active protected sulfamidate 2-phosphonates have been synthesized from either (R)- or (S)-N-benzyl-2-phosphonoserine for use as chiral synthons. These sulfamidates have been shown to undergo nucleophilic substitution with select nucleophiles, to afford following N-sulfate removal, the ...

pH sensitivity, biodegradability and high biocompatibility make poly(β-amino esters) (PBAEs) important biomaterials with many potential applications including drug and gene delivery and tissue engineering, where their degradation should be tuned to match tissue regeneration rates. Therefore, we...

In the present contribution, the biological properties of four manganese complexes with the non-steroidal anti-inflammatory drugs sodium diclofenac (Nadicl) or indomethacin (Hindo) in the presence or absence of salicylaldoxime (Η2sao), i.e. [Μn6(O)2(dicl)2(sao)6(CH3OH)6] 1, [Μn6(O)2(indo)2(sa...

Several clinical studies have reported that an increase in excretion of tryptophan metabolites 3-hydroxyanthranilic acid (3-OHAA), anthranilic acid (AA) and other metabolites in the urine of bladder cancer patients are implicated to play a role in the etiology of bladder cancer; however the mech...

The interaction of MnCl2 with the non-steroidal anti-inflammatory drugs tolfenamic acid (Htolf) or naproxen (Hnap) in the presence of salicylhydroxamic acid (H3shi) led- to the formation of the hexanuclear mixed-valence MnIIMnIII5 clusters [Μn6(tolf)2(shi)5(py)6], 1 and [Μn6(nap)(Hsal)(shi)5(p...

Nanocomposite materials synthesized by incorporation of Pt0 and Pd0 nanoparticles into a poly(pyrrole-alkylammonium) matrix have been characterized by transmission electron microscopy. These nanocomposites coated onto carbon electrodes present strong electrocatalytic properties towards the oxida...

Crystals of sodium bis(2-amino-6-methyl-pyridinium) hexachlororhodium(III) (1) and potassium bis(2-amino-6-methyl-pyridinium) hexachlororuthenium(III) (2) have been prepared in the reaction of MCl3 · xH2O (M = Rh, Ru) with 2-amino-6-methyl pyridine in the presence of M1Cl (M1 = Na or K) in the ...

Piperidinium hexachlororhodate(III) monohydrate undergoes a rapid reaction with piperidine in refluxing benzene to form trichloro tris(piperidine) rhodium(III) and piperidine hydrochloride. At no time during this investigation, however, was a tetrakis(piperidine)-rhodium species detected. Thus t...

We report regenerative amplification of femtosecond laser pulses locked by injection of supercontinuum spectrum into a distributed feedback (DFB) microcavity constructed by slant gratings. Destroying the symmetry of the DFB resonance modes about the normal injection, the slant grating not only e...

We report the development of a distribution feedback (DFB) laser sensor for high precision and high sensitivity detection of the early fire gas carbon monoxide (CO). This system relied on a continuous wave (CW), distributed feedback laser emitting at a wavelength of around 2.33 μm as excitation...

A tunable dual-wavelength fiber ring-cavity laser based on semiconductor optical amplifier (SOA) using two external-injected distributed feedback (DFB) lasers is proposed and experimentally demonstrated. When one of the injected DFB lasers operates at 25 °C and the other at 0 °C, a stable dual...

In this paper, the operation of π-phase shifted distributed feedback Raman fiber (DFB-RF) laser above threshold condition is analyzed theoretically. The nonlinear optical phenomena such as self phase modulation (SPM) and cross phase modulation (XPM) have significant effect on the performance of...

Bis(benzotriazol-l-yl) methylimine was used as a novel electrophilic cyanating agent for labile β-diketonates (M = CuII, NiII, CoII, ZnII and CdII). The actual cyanating species was 1 -cyanobenzotriazole formed in situ with the elimination of benzotriazole. The labile metal-oxygen bond in the c...