1. SYNTHESIS AND STRUCTURE ASSIGNMENT OF SOME NEW ALKYL-(10H-PHENOTHIAZIN-3-YL)-CARBONATES. Authors: RADU GROPEANU, TEODORA PANEA, IOAN PANEA.2. AZOCOUPLING PRODUCTS. III. SPECTROSCOPIC INVESTIGATION AND SYNTHESIS OF SOME AZOCOUPLING PRODUCTS BETWEEN 1-(4-HYDROXY-6-METHYL-PYRIMIDIN-2-YL)-3-METHYL-PYRAZOLIN-5-ONE AND AROMATIC DIAZONIUM SALTS. Authors: IOAN PANEA, ADINA GHIRIȘAN, FLORIN IURA, RADU GROPEANU, IOAN ALEXANDRU SILBERG.3. AZOCOUPLING PRODUCTS. PART IV. THE STRUCTURE OF DYES OBTAINED BY AZO-COUPLING REACTION OF 1-(4-HYDROXY-6-METHYLPYRIMIDIN-2-YL)-3-METHYLPYRAZOLIN-5-ONE WITH AROMATIC DIAZONIUM SALTS. Authors: IOAN PANEA, ADINA GHIRIȘAN, I. BALDEA, IOAN SILAGHI-DUMITRESCU, LILIANA CRĂCIUN, IOAN ALEXANDRU SILBERG.4. POLYMETHINE DYES. PART II*. THE PHOTOCHROMIC BEHAVIOUR OF SOME CATIONIC DIMETHINE DYES. Authors: IOAN BÂLDEA, IOAN PANEA, ADRIAN CONSTANTIN APETRI.5. POLYMETINE DYES. PART III*. THE CATIONIC 1-H-INDOLO-3-DIMETHINE DYES. Authors: IOAN PANEA, IOAN BÂLDEA.6. SPECTROSCOPIC AND ATOMIC FORCE MICROSCOPY STUDY OF A NEW HEMICYANINE DYE. Authors: IOAN PANEA, MARIA TOMOAIA-COTISEL, OSSI HOROVITZ, COSTINELA LAURA GÁSPÁR, AURORA MOCANU, CSABA NAGY.7. SYNTHESIS AND SPECTROSCOPIC INVESTIGATION OF METAL COMPLEXES WITH AN AZO-DYE AS LIGAND. Authors: CARMEN BÂTIU, IOAN PANEA, MIRELA PELEA, ANCA MARCU, LEONTIN DAVID.8. THE COMPARATIVE STUDY OF THE INFLUENCES OF THE EXTERNAL FACTORS ON THE UV-VIS ABSORPTION SPECTRA OF SOME POTENTIALLY TAUTOMERIC AZOCOUPLING PRODUCTS. Authors: IOAN PANEA, MIRELA PELEA, LUMINIŢA SILAGHI-DUMITRESCU, IOAN BÂLDEA, MARIA COROŞ.