Tetrathia Macrocycle-bridged Dimeric with Hexakis (alkylthio) Substituents and Network Polymer Phthalocyanines

1997 ◽  
Vol 01 (03) ◽  
pp. 227-237 ◽  
Author(s):  
A. G. GÜREK ◽  
Ö. BEKARO ĞLU
Keyword(s):  
Electrical Conductivity ◽  
Thermogravimetric Analysis ◽  
Chemical Doping ◽  
Organic Base ◽  
Network Polymer ◽  
Thermal Stabilities ◽  
H Nmr ◽  
Elemental Analyses ◽  
New Compounds ◽  
C Nmr

1,4,7,10-Tetrathia (12-crown-4)-bridged new polymeric phthalocyanines 9 and 10 have been synthesized by the reaction of tetracyanodibenzo[1,4,7,10-tetrathia (12-crown-4)] in the presence of a strong organic base or Zn ( OAc )2 respectively. Furthermore, 1,4,7,10-tetrathia (12-crown-4)-linked peripherally octa-substituted dimeric phthalocyanine 12, which contains a combination of hexakis(alkylthia) side chains was synthesized by the reaction of subphthalocyanine 11 with the iminoisoindoline derivative 8. The new compounds have been characterized by elemental analyses, IR, UV/vis, mass, 1 H NMR and 13 C NMR spectroscopy. The thermal stabilities of the compounds were determined by thermogravimetric analysis. The electrical conductivity of the polymeric, 9 and 10, and dimeric phthalocyanines, 12 and 13, are in the semiconductor range; chemical doping with NOBF 4 increases the d.c. conductivity of 10 by a factor of four.

Dioxa-dithia Macrocycle-bridged Dimeric with Hexakis(alkylthio) Substituents and Network Polymer Phthalocyanines

1997 ◽  
Vol 01 (01) ◽  
pp. 67-76 ◽  
Author(s):  
A. G. GÜREK ◽  
Ö. BEKARO ĞLU
Keyword(s):  
Electrical Conductivity ◽  
Nmr Spectroscopy ◽  
Chemical Doping ◽  
The Novel ◽  
Conductivity Measurements ◽  
Network Polymer ◽  
Network Polymers ◽  
H Nmr ◽  
Elemental Analyses ◽  
C Nmr

1,7-dithia (12-crown-4)-bridged phthalocyanine network polymers were prepared from tetracyanodibenzo-[1,7-dithia(12-crown-4)]. In addition, the synthesis of two 1,7-dithia (12-crown-4) linked peripherally octa-substituted dimeric phthalocyanines, which contain a combination of hexakis(alkylthia) side chains, is described. These extremely soluble compounds were prepared by the condensation of an iminoisoindoline derivative and a subphthalocyanine. The novel compounds are characterized by elemental analyses, UV/vis, IR, mass, 1 H NMR and 13 C NMR spectroscopy. The electrical conductivity measurements of three of the four network polymers were unsuccessful; however chemical doping with NOBF 4 could be increased to a measurable value. The electrical conductivity of the dimeric phthalocyanines are in the semiconductor range.

scholarly journals Synthesis of Some Novel Fused Imidazo [2, 1-b] [1, 3] Thiazole and Imidazo [2, 1-b] Thiazolo [5, 4-d] Isoxazole Derivatives

2012 ◽  
Vol 9 (3) ◽  
pp. 1518-1525 ◽  
Author(s):  
Hamid Reza Jaberi ◽  
Hadi Noorizadeh
Keyword(s):  
Acetic Acid ◽  
Sodium Acetate ◽  
Carbon Disulphide ◽  
Thiazole Derivatives ◽  
H Nmr ◽  
Nmr Data ◽  
Elemental Analyses ◽  
New Compounds ◽  
Isoxazole Derivatives ◽  
C Nmr

In this work we describe the synthesis of some novel fused imidazo [2, 1-b] [1, 3] thiazole derivatives. The reaction of 1, 2-diaminoethane 1 with carbon disulphide in H2O/ETOH as solvent furnishes 4, 5-dihydro-1H-imidazol-2-thiol 2 under reflux condition. the reaction of 4,5-dihydro-1H-imidazol-2-thiol on treatment with ethylchloro acetate and aromatic aldehyde in presence of anhydrous sodium acetate and acetic acid as solvent to give (Z)-2-(arylidene)-5,6-dihydroimidazo [2,1-b] [1,3] thiazol-3(2H)-one 3a-j. Compounds 3a-j was condensed with hydroxylamine to give 3-(aryl)-2, 3, 6, 7-tetrahydroimidazo [2, 1-b] [1,3] thiazolo [5, 4-d] isoxazole 4a-j. The structures of the new compounds were established by elemental analyses, IR,1H NMR and13C NMR data.

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.

Übergangsmetall-Carbin-Komplexe, XC. Synthese neuer, siebenfach-koordinierter, kationischer Carbin-Komplexe des Wolframs in einer höheren Oxidationszahl / Transition Metal Carbyne Complexes, XC. Synthesis of New, Seven Coordinated, Cationic Tungsten Carbyne Complexes in a Higher Oxidation State

1988 ◽  
Vol 43 (6) ◽  
pp. 654-657 ◽  
Author(s):  
Alexander Constantin Filippou ◽  
Ernst Otto Fischer ◽  
Helmut Guido
Keyword(s):  
Electrical Conductivity ◽  
Nmr Spectroscopy ◽  
Transition Metal ◽  
Carbonyl Group ◽  
Oxidation State ◽  
Ionic Character ◽  
H Nmr ◽  
Elemental Analyses ◽  
Carbyne Complexes ◽  
C Nmr

The reaction of (I)3(CO)L2W≡CNEt2 (L2 = 2.2'-bipyridyl(2.2'-bipy); 1.10-phenanthroline (ophen)) (1, 2) with two equivalents of tert-butylisonitrile results in the elimination of the carbonyl group and the displacement of one iodine ligand from the coordination sphere, leading to the new, cationic carbyne complexes [(I)2(t-C4H9NC)2L2W≡CNEt2]+I- (3, 4). The ionic character and composition of 3 and 4 was confirmed by the electrical conductivity of their solutions as well as by elemental analyses, IR, 1H NMR and 13C NMR spectroscopy.

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.

Synthesis and aggregation behaviour of phthalocyanines substituted with flexible crown ether

2000 ◽  
Vol 04 (06) ◽  
pp. 621-626 ◽  
Author(s):  
I. GÜROL ◽  
V. AHSEN
Keyword(s):  
Solvent Extraction ◽  
Crown Ether ◽  
Alkali Metal Ions ◽  
Thermal Stabilities ◽  
Metal Free ◽  
Aggregation Behaviour ◽  
Elemental Analyses ◽  
Band Transition ◽  
New Compounds ◽  
C Nmr

The synthesis of metal-free and metallo derivatives ( Ni , Zn ) of tetrasubstituted phthalocyanines (Pcs) obtained from 4-[methyleneoxy(15-crown-5)]phthalonitrile is described. The new compounds have been characterized by elemental analyses, IR, 1 H and 13 C NMR , MS and UV-vis. The thermal stabilities of the compounds were determined by thermogravimetric analysis. The alkali metal ions bound to crown ether groups force dimerization of the phthalocyanine units in solution, as observed in the electronic spectra by the broadening of the Q band transition at 675 nm. The highest affinity for potassium ion was observed in the case of the NiPc derivative in solvent extraction experiments.

Synthesis and Antioxidant Properties of Some New 3-(4-Chlorophenyl)-5- (pyridin-4-yl)-4H-1,2,4-triazole Derivatives

2008 ◽  
Vol 63 (5) ◽  
pp. 548-554 ◽  
Author(s):  
Olcay Bekircan ◽  
Tevfik Özen ◽  
Nurhan Gümrükcüoğlu ◽  
Hakan Bektaş
Keyword(s):  
Spectral Data ◽  
Antioxidant Properties ◽  
Triazole Derivatives ◽  
H Nmr ◽  
Elemental Analyses ◽  
New Compounds ◽  
C Nmr

A series of new 3-(4-chlorophenyl)-5-(pyridin-4-yl)-4-(arylmethyleneamino)-4H-1,2,4-triazole derivatives 3 were prepared in good yields by treatment of 4-amino-3-(4-chlorophenyl)-5-(pyridine- 4-yl)-4H-1,2,4-triazole (2) with selected aldehydes. Compounds 3 were reduced with NaBH4 to afford the corresponding 3-(4-chlorophenyl)-5-(pyridin-4-yl)-4-(arylmethylamino)-4H-1,2,4-triazole derivatives 4. Eighteen new compounds were synthesized and characterized by elemental analyses, IR, 1H NMR and 13C NMR spectral data. The compounds were screened for their antioxidant and antiradical activities.

Synthesis, Characterization and Complexation Studies with K + and Ca2+ Cations of trans-1.2-Cyclohexanedioxydiacetamides

1988 ◽  
Vol 43 (2) ◽  
pp. 165-170 ◽  
Author(s):  
Whei Oh Lin ◽  
Maria C. B. V. de Souza ◽  
Helmut G. Alt
Keyword(s):  
Nmr Spectroscopy ◽  
Mass Spectroscopy ◽  
H Nmr ◽  
Coordination Sites ◽  
Complexation Studies ◽  
Ir And Nmr Spectroscopy ◽  
Elemental Analyses ◽  
C Nmr

The synthesis of trans-1.2-cyclohexanedioxydiacetamides starting with trans-1.2-cyclohexane-diol is described. Eleven of these compounds are characterized by IR, 1H NMR, 13C NMR and mass spectroscopy as well as elemental analyses. Most of these compounds are suitable ionophors for the cations K+ and Ca2+. The coordination sites of these ligands in the 1:2 complexes were determined by IR and NMR spectroscopy

Sulphonated Poly(ethylene terephthalate)/Poly(3-hydroxy butyrate) Blends: Miscibility, Thermal Behavior, and Specific Interactions

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Rafael Silva ◽  
Gizilene M. Carvalho ◽  
Edvani C. Muniz ◽  
Gentil J. Vidotti ◽  
Adley F. Rubira
Keyword(s):  
Carbonyl Group ◽  
Specific Interaction ◽  
Thermal Stabilities ◽  
Immiscible Blends ◽  
H Nmr ◽  
Miscible Blends ◽  
Poly Ethylene Terephthalate ◽  
Concentration Changes ◽  
Poly Ethylene ◽  
C Nmr

AbstractPETs/PHB blends with different compositions were produced by “casting” method. The blends were investigated by TGA, DSC, 1H and 13C NMR and FTIR. Phase separation occurred during blend preparation. PETs and PHB were present in both formed phases. The phases presented different thermal stabilities unrelated to phase component concentration changes. The miscibility study by DSC showed that PHB-phase rich blends are immiscible, whereas the PETs-rich phase blends are miscible. The 1H NMR spectra of the miscible blends exhibited a peak close to the PHB methylene signal, which is in accordance with the interaction between the PETs SO3 - groups and the PHB carbonyl groups. This interaction result in a shift of the PHB carbonyl group absorption band in the FTIR spectra and a variation in the chemical shift of the PHB carbonyl group resonance peak in solid state 13C NMR. No specific interaction was observed for the immiscible blends.

scholarly journals Synthesis of cis, cis-1,3,5-trisubstituted cyclohexane based chelators with polyfunctional pendant arms

2005 ◽  
Vol 2005 (1) ◽  
pp. 43-45 ◽  
Author(s):  
Minati Baral ◽  
B.K. Kanungo ◽  
Peter Moore
Keyword(s):  
Schiff Base ◽  
Nmr Spectroscopy ◽  
Organic Compounds ◽  
Elemental Analysis ◽  
H Nmr ◽  
Benzenetricarboxylic Acid ◽  
New Compounds ◽  
Pendant Arms ◽  
C Nmr

Some novel organic compounds of the type: cis, cis-1,3,5-tris(X)cyclohexane, where X= –CONH(CH2)2NH2, –CONH(CH2)3NH2, –CONH(CH2)2NCH –C6H4OH, CONH(CH2)3NCHC6H4OH, which are expected to function as potential polydentate chelators have been synthesised from 1,3,5-benzenetricarboxylic acid through multi-steps reactions. 1,3,5-benzenetricarboxylic acid was reduced to cis, cis-1,3,5-tris(ethylcarboxylate)cyclohexane, which on reaction with excess of 1,2-diaminoethane and 1,2-diaminopropane afforded two new compounds. Condensation of the obtained derivatives with three equivalents of salicylaldehyde resulted the formation of two new Schiff base compounds. All the compounds were characterised by a combination of elemental analysis, mass, IR, UV-Vis, 1H NMR and 13C NMR spectroscopy.

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