scholarly journals Synthesis and characterization of vinyl derivatives of naphthalene-2,7-diol as a photoluminescent dopant useful in optical materials

2017 ◽  
Vol 89 (1) ◽  
pp. 111-123 ◽  
Author(s):  
Małgorzata Gil ◽  
Beata Podkościelna ◽  
Barbara Gawdzik ◽  
Andrzej Bartnicki ◽  
Wiesław Podkościelny ◽  
...  
Keyword(s):  
Optical Materials ◽  
Dimethyl Sulfate ◽  
Synthesis And Characterization ◽  
Chemical Structures ◽  
Epoxide Compound ◽  
Three Stages ◽  
Vinyl Derivatives ◽  
Derivatives Of ◽  
C Nmr

AbstractIn this study synthesis and characterization of the new methacrylic derivatives of naphthalene-2,7-diol are presented. This reaction was performed in the three stages. In first stage 2,7-NAF was reacted with dimethyl sulfate in the NaOH solutions at 0°C. Next, the obtained 2,7-NAF.Me was modified by epichlorohydrine leading to epoxide compound (2,7-NAF.Me.EP). Finally, the reaction of opening oxirane rings by methacrylic acid was carried out. The chemical structures of all derivatives were confirmed by 1H and 13C NMR. Next, copolymerization reaction with methyl methacrylate (MMA), styrene (St) or divinylbenzene (DVB) was carried out. New monomer (2,7-NAF.MePM) possesses only one double bond and it can be used as a dopant in optical materials technology. The studies of their thermal properties were investigated by means TG/DTG/QMS coupled method. The influence of photoluminescence dopant on thermal stability of the obtained copolymers was also discussed.

Synthesis and characterization of N-glucosylated dithiadiazepine derivatives through carbon-sulfur bond formation

2015 ◽  
Vol 21 (5) ◽  
pp. 269-272 ◽  
Author(s):  
Snehal A. Chavan ◽  
Avinash G. Ulhe ◽  
Baliram N. Berad
Keyword(s):  
Bond Formation ◽  
Synthesis And Characterization ◽  
Mass Spectral ◽  
H Nmr ◽  
Chemical Structures ◽  
Elemental Analyses ◽  
New Compounds ◽  
Sulfur Bond ◽  
C Nmr

AbstractNew 4,7-bis(arylamino)-2-tetra-O-acetyl-β-d-glucopyranosylimino-1,3,5,6-dithiadiazepines were synthesized via reaction of N-tetra-O-acetyl-β-d-glucopyranosyl isocyanodichloride with 1,6-diaryl-2,5-dithio-bis-ureas without using any catalyst. Thus, the synthesis of 7-membered heterocycles containing two sulfur and two nitrogen atoms through carbon-sulfur bond formation was explored. The chemical structures of these new compounds were elucidated by IR, 1H NMR, 13C NMR, mass spectral, and elemental analyses.

scholarly journals Synthesis and Characterization of Zinc(II)-Complexes with S-Alkyl Derivatives of Thiosalicylic Acid

2018 ◽  
Vol 19 (2) ◽  
pp. 113-117 ◽  
Author(s):  
Milos V. Nikolic ◽  
Marina Z. Mijajlovic ◽  
Dusan Lj. Tomovic ◽  
Andriana M. Bukonjic ◽  
Verica V. Jevtic ◽  
...  
Keyword(s):  
Nmr Spectra ◽  
Ethanol Solution ◽  
Alkyl Halides ◽  
Synthesis And Characterization ◽  
Direct Reaction ◽  
Thiosalicylic Acid ◽  
Alkyl Derivatives ◽  
Derivatives Of ◽  
C Nmr

Abstract New zinc(II)-complexes with S-alkyl derivatives of thiosalicylic acid (alkyl = benzyl-(L1), methyl-(L2), ethyl-(L3), propyl-(L4), butyl-(L5)) have been synthesized and characterized by elemental microanalysis, IR spectroscopy, and 1H and 13C NMR spectroscopy. The S-alkyl derivatives of thiosalicylic acid were prepared by alkylation of thiosalicylic acid by adding alkyl halides to an alkaline water-ethanol solution, while the corresponding zinc(II)-complexes were obtained via the direct reaction of ZnCl2 with S-alkyl derivatives of thiosalicylic acid in water. Based on the microanalysis results and the IR and NMR spectra of the S-alkyl derivatives of thiosalicylic acid and the corresponding zinc(II)-complexes, we concluded that the ligands are bidentately coordinated to the zinc(II)-ion.

Synthesis and characterization of novel metal-free and metallophthalocyanines peripherally fused to four 24-membered tetraoxatetraaza macrocycles

2001 ◽  
Vol 05 (04) ◽  
pp. 367-375 ◽  
Author(s):  
S. ZEKİ YILDIZ ◽  
HALTİ KANTEKİN ◽  
YAŞAR GÖK
Keyword(s):  
Elemental Analysis ◽  
Metal Salt ◽  
Synthesis And Characterization ◽  
Organic Base ◽  
Metal Free ◽  
H Nmr ◽  
New Compounds ◽  
Derivatives Of ◽  
C Nmr

New metal-free 5 and metallophthalocyanines 6-11( M = Cu , Ni , Co , Pb , Zn ) fused in peripheral positions with four 24-membered tetraoxatetraaza macrocycles were prepared by cyclotetramerization of 24,25-dicyano-4,10,13,17-tetra(toluene-p-sulfonyl)-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22-didicontinehydrobenzo[y][3,9,12,18]tetraaza[1,7,16,22]tetraoxatetradicontine in the presence of the corresponding metal salt or a strong organic base. While the N-tosylated derivatives of the phthalocyanines are soluble in common organic solvents, the detosylated derivative of copper phthalocyaninate is soluble in water. The aggregation properties of the phthalocyanines were also investigated as a function of concentration, solvent and oxidative medium. The new compounds are characterized by a combination of elemental analysis and 1 H NMR, 13 C NMR, IR, UV-vis and MS spectral data.

The synthesis and characterization of new aminoadamantane derivatives of hexachloro-cyclo-triphosphazene

Polyhedron ◽  
2008 ◽  
Vol 27 (9-10) ◽  
pp. 2077-2082 ◽  
Author(s):  
Radka Kočí Voznicová ◽  
Jan Taraba ◽  
Jiří Příhoda ◽  
Milan Alberti
Keyword(s):  
Synthesis And Characterization ◽  
Derivatives Of

Synthesis and characterization of novel 2,5-diphenyl-1,3,4-oxadiazole derivatives of anthracene and its application as electron transporting blue emitters in OLEDs

2011 ◽  
Vol 161 (9-10) ◽  
pp. 869-880 ◽  
Author(s):  
M. Ananth Reddy ◽  
G. Mallesham ◽  
Anup Thomas ◽  
Kola Srinivas ◽  
V. Jayathirtha Rao ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Oxadiazole Derivatives ◽  
Blue Emitters ◽  
Derivatives Of
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