No 7, Juillet 2007

Tome 52, No 7, Juillet 2007

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1. Ana Aurelia CHIRVASE, Ioan DUMITRACHE and Mihai Dan CARAMIHAI

Progress in characterization, modeling and control of aerobic bioprocess. Part I. Aerobic bioprocess and bioreactor characterization

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Key words: aerobic bioprocess, modelling, bioreactor characterization

2. Bianca FURDUI, Rodica DINICĂ, Martine DEMEUNYNCK, Ioan DRUŢĂ and Alexandru VLAHOVICI

New reactive pyridinium-indolizines fluorophores

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Key words: indolizine, flourophores, 4,4’-bipyridine, ylides, cycloaddition

3. Liliana BÎRLĂ, Beatriz PRIETO, Thierry NOGUEL, Jean VIGO and Anne-Cécile RIBOU

Comparative study of the interaction between BSA and three fluorescent probes: investigation of some critical parameters

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Key words: fluorescence, BSA, binding

4. Gabriela LISA and Cătălin LISA

Prediction of excess thermodynamic properties from experimental refractive index of binary mixtures. 1. Water-propionic acid mixtures at 290.15, 300.15 and 310.15 K

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Key words: excess thermodynamic properties, prediction, water – propionic acid mixtures

5. Gheorghe NEMŢOI, Marius Sebastian SECULA and Igor CREŢESCU and Stelian PETRESCU

Voltammetric characterization of copper and aluminum behavior in concentrated aqueous solutions of phosphoric acid

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Key words: anodic dissolution, voltammetry, rotating disc electrode technique, charge transfer, mass transport

6. Florin CRIŞAN and Ervin SALLO

Zinc anodization in acidic media. Oscillations influenced by nitrate ions

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Key words: oscillations, steady state, chaos, bifurcation

7. Andreea Irina COŞUŢCHI, Camelia HULUBEI, Manuela BUDA, Toni BOŢILĂ and Silvia IOAN

Theoretical and experimental study of dielectric and optical properties of some epiclon based polyimides

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Key words: polyimides, refractive index, dielectric constant

8. Viorica MUŞAT, Elvira FORTUNATO, Ştefan DIMA and Cătălina ITICESCU

Mesoporous sol-gel silica-based nanocomposite thin films

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Key words: cobalt oxide-SiO2, zinc oxide-SiO2, mesoporous thin films, nanocomposite, sol-gel

9. Dorel RADU, Mihai EFTIMIE and Mariana RADU

Assessing properties of silicate glasses at nano level

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Key words: silicate glasses, nanometric structure, melts properties

10. Ludovic SAYTI, Lidia TAUBERT, Mihai MILOS and Valentin CAREJA

Crystallization of magnesium trihydrate carbonate in presence of surfactants

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Key words: magnesium trihydrate carbonate, electrostatic potential, influenced crystallization, crystal habitus

11. Message from IUPAC

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No 5, Mai 2007

Tome 52, No 5, Mai 2007

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1. Vasile DINOIU

Chemical fluorination of organic compounds

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Key words: fluorine, electrochemical partial fluorination, perfluorination

2. George BRĂTULESCU

Synthèse des dérivés cycliques du 4,5-benzo- 1,3,2-diazaphosphole
Synthesis of 4,5-benzo-1,3,2-diazaphosphole cyclo-derivatives

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Key words: 4,5-benzo-1,3,2-diazaphospholes, micro-ondes, RMN

3. Romuald BERTHET, Amar ZERROUKHI, Gérald BRUN, Teodora ZECHERU and Corneliu CINCU

Synthesis and optical properties analysis of a new polymeric optical fiber for side lighting

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Key words: plastic fibre, radical polymerization, light scattering, acrylate monomer

4. Mihaela Ligia UNGUREŞAN and Gavril NIAC

Composition of the intermediate of the fast interaction between copper(II) and thiosulfate ions in aqueous solutionie
Synthesis of new N-acylphenothiazinic derivatives with potential activity in chemotherapy

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Key words: fast redox reaction, copper ions, thiocompounds, stopped-flow technique, Job’s method

5. Viorica MELTZER and Gabriela CRISTESCU

Thermodynamic study and structuremesomorphism correlation for new sitosteryl benzoate compounds

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Key words: polymorphism, DSC, thermomicroscopy, liquid crystal, sitosteryl benzoate compounds

6. Gabriela Elena BADEA

Autocatalytic reduction of iodate at the platinum electrode in 0.5 M H2SO4 solutions

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Key words: iodate, reduction, platinum electrode, polarisation curves

7. Iulia SORA, Toma GALAON, Victor DAVID and Andrei MEDVEDOVICI

Determination of nimesulide and its active metabolite in plasma samples based on solvent deproteinization and HPLC-DAD analysis

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Key words: liquid chromatography, nimesulide; 4’-hydroxy-nimesulide, human plasma, protein precipitation with acetonitrile, bioavailability

8. Magdalena DIANU and Corneliu PODINĂ

The safety of environment in final disposal of Ultima Gold scintillation liquid cocktail used for determination of the radioactive content in various samples at Cernavoda Nuclear Power Plant

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Key words: scintillation, tritium, cementation, waste

9. Margarita GABROVSKA, Rumeana EDREVA-KARDJIEVA, Verislav ANGELOV, Dorel CRIŞAN,
Gabriel MUNTEANU and Jacques VÉDRINE

Mg-Al and Mg-In oxide compounds as catalyst components for the oxidative dehydrogenation of propane. Part I. Preparation and characterization of the as-synthesized materials

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Key words: co-precipitation and evaporation, Mg-Al and Mg-In hydrotalcitelike materials, XRD, IR

10. Margarita GABROVSKA, Rumeana EDREVA-KARDJIEVA, Verislav ANGELOV, Dorel CRIŞAN and
Jean-Marc M. MILLET

Mg-Al and Mg-In oxide compounds as catalyst components for the oxidative dehydrogenation of propane. Part II. Characterization of the calcined materials

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Key words: Mg-Al and Mg-In oxide compounds, DTA-TG, XRD, IR

Nos 1-2, Janvier-Février 2007

Tome 52, Nos 1-2, Janvier-Février 2007

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Professor Ionel Haiduc

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Publications list

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1. Petronela Maria PETRAR, Gabriela NEMES, Luminita SILAGHI-DUMITRESCU, Ioan SILAGHI-DUMITRESCU, Jean ESCUDIÉ, Heinz GORNITZKA and Henri RANAIVONJATOVO

Synthesis and characterization of the first arsanylbis(methylene)phosphosrane (Me3Si)2C=P(Mes*)=C(Cl)-As(F)Mes*

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Key words: arsanylbis(methylene)phosphorane, heterocumulenes, heteroallenes

2. Mihai NEMA, Mihaela JÖNSSON, Richard A. VARGA, Anca SILVESTRU and Cristian SILVESTRU

Bismuth(III) complexes of tetraorganodichalcogenoimidodiphosphinic acids. Crystal and molecular structure of Bi[(SPMe2)(SPPh2)N]3 and Bi[(OPPh2)2N2][(OPPh2)(SPPh2)N]

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Key words: arsanylbis(methylene)phosphorane, heterocumulenes, heteroallenes

3. Anamaria TEREC, Elena BOGDAN, Luminiţa DAVID, Sorin MAGER and Ion GROSU

Synthesis and stereochemistry of some new bis(1,3-dioxane-2-yl)alkanes

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Key words: conformational analysis, NMR, 1,3-dioxanes, X-ray structure

4. Carmen Ioana LADIU, José R. GARCÍA, Ionel Catalin POPESCU and Lo GORTON

NADH electrocatalytic oxidation at glassy carbon paste electrodes modified with Meldola Blue adsorbed on acidic α-zirconium phosphate

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Key words: NADH oxidation, modified glassy carbon paste electrodes, electrocatalysis, α-titanium phosphate, redox dyes

5. Monica VENTER, Vasile N. BERCEAN, Maria ILICI and Simona CÎNTĂ PÎNZARU

New metal complexes of monoanionic (5-mercapto-1,3,4-thiadiazol-2-yl)thioacetic acid.
X-ray structure of [Na(C2N2HS3CH2COO)H2O)4]2·2H2O

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Key words: thiadiazole, sodium salt, X-ray structure, FT-IR, Raman

6. Codruţa VARODI, Delia GLIGOR and Liana M. MUREŞAN

Carbon paste electrodes modified with Methylene Blue immobilized on a synthetic zeolite

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Key words: Methylene Blue, zeolites, carbon paste electrodes, hydrogen peroxide

7. Valentina CHIOSA and Victor Em. SAHINI

Optical rotatory dispersion of some human serum albumin conformers

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Key words: human serum albumin, optical rotatory dispertion, alfa-helix content

8. Andrei JITIANU, Alina BRITCHI, Virgil BADESCU, Călin DELEANU and Maria ZAHARESCU

Influence of the alkoxy group of the Si-alkoxides on the sol-gel process and on the structure of the obtained gels

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Key words: sol-gel, hybrid materials, GS-MS, 29Si-NMR, IR spectroscopy, SEM microscopy

9. Carmen PARASCHIV, Sylvie FERLAY, Mir Wais HOSSEINI, Nathalie KYRISTSAKAS, Jean-Marc
PLANEX and Marius ANDRUH

Hybrid organic/inorganic H-banded supramolecular networks including [Cr(ox)2L]¯ .
(L=1,10-phenanthroline and 2,2-bypiridine)tectons

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Key words: chromium complexes, hydrogen bond interaction, oxalate complexes, supramolecular chemistry

10. Geta DAVID, Bogdan C. SIMIONESCU and Cristofor I. SIMIONESCU

Functional micro- and nanoparticle – a possible tool for nanostructured materials

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Key words: micro- and nanoparticles, functional polymers, macromonomers, poly[(N-acylimino)ethylene], polymer supported catalysts, nanostructured materials

11. Cristina PRISACARIU and Elena SCORTANU

Study of the compression properties of polyurethanes based on dibenzyl monomers and 1,4-butanediol as compared to other diol chain extenders

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Key words: 4,4’-dibenzyl diisocyanate, polyurethanes, compression, residual elongation, Young modulus

12. Carmen RACLES, Anton AIRINEI, Aurelia IOANID, Cristian GRIGORAS and Maria CAZACU

Siloxane-azoaromatic polyesters as potential complex dye systems

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Key words: azo-polymers, siloxane, polymer blends

13. Ion SAVA and Elena HAMCIUC

Silicon-containing aromatic poly(amide-imide)s

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Key words: silicon, polyamide-imides, solubility, thin film, conformational parameters

14. Gabrielle Charlotte CHIŢANU, Irina POPESCU and Adrian CARPOV

Synthesis and characterization of maleic anhydride copolymers and their derivatives. 3 Synthesis and characterization of maleic anhydride-methyl methacrylate copolymers

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Key words: maleic anhydride copolymers; maleic anhydride-methyl methacrylate copolymer; copolymer characterization

15. Aurica FARCAŞ, Mariana PINTEALA and Valeria HARABAGIU

Self-assembly of functional polymers. A viscometric study

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Key words: reversible self-assembly, functional polymers, crown etherammonium salt interaction

16. Simona MORARIU and Maria BERCEA

Influence of poly(ethylene oxide)on the aggregation and gelation of laponite dispersions in water

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Key words: Laponite RD, poly(ethylene oxide), gel, viscoelastic properties

17. Ruxanda BODÎRLĂU, Carmen-Alice TEACĂ and Iuliana SPIRIDON

Thermal investigation upon various composite materials

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Key words: wood-plastic composite, FT-IR spectra, thermal analysis, weight loss

18. Ana Maria TOADER and Elena VOLANSCHI

Electrochemical and spectral study of the heminsurfactant interaction in solution

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Key words: Hemin, anionic surfactants, cyclic voltammetry, UV-VIS absorption spectroscopy

19. Viorel BRÂNZOI, Florina BRÂNZOI and Luisa PILAN

Electrochemical characterization of polypyrrole modified electrodes doped with large organic anions

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Key words: polypyrrole film, platinum electrode cyclic voltammetry, electrochemical impedance spectroscopy

20. Mariana Viorica BOGĂŢIAN, Andreea Cristina CORBU, Călin DELEANU, Maria MAGANU and Gheorghe BOGĂŢIAN

Pyrilium salts with long alkyl substituents having a terminal free amino group. Corrosion inhibitors derived from corresponding pyridinium salts

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Key words: pyridinium salts, corrosion inhibitors for steel in acidic water

21. Alexandru C. RAZUS, Liviu BIRZAN, Victorita TECUCEANU, Mihaela CRISTEA, Alina NICOLESCU and Cristian ENACHE

Azulene derivatives soluble in polar solvents. 1- (azulen-1-yl)-2-(thien-2- or 3-yl)-ethenes

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Key words: azulene, thiophene, ethenes, carboxylic acids

22. Maria MRACEC, Ramona RAD, Liliana OSTOPOVICI, Ana BOROTA and Mircea MRACEC

Conformational analysis with semiempirical methods for a quinoxaline urea derivative, active on benzodiazepine receptor

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Key words: GABA benzodiazepine receptor, conformational analysis, quinoxaline, AMBER94, AM1

23. Maria MRACEC, Ana BOROTA, Ramona RAD, Liliana OSTOPOVICI and Mircea MRACEC

Conformational analysis for a series of imidazole ligands acting as antagonists on the histamine H3 receptor

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Key words: flexible ligand, conformational analysis, H3 receptor antagonist, AM1, MM+

24. Zeno GARBAN, Gabriela GARBAN, Ariana-Bianca VELCIOV and George-Daniel GHIBU

Interaction of deoxyribonucleic acid with cis-platinum: structure-activity relantionship

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Key words: cis-platinum – DNA interaction, effects