Synthesis of new phthalocyanines substituted with four 1H-benzoimidazol-2-ylsulfanyl and 2-(1H-benzo[d]imidazol-2-ylthioetoxy) groups

2006 ◽  
Vol 10 (02) ◽  
pp. 117-121 ◽  
Author(s):  
M. Salih Ağırtaş ◽  
Ümit Yıldıko ◽  
Ayfer Yılan
Keyword(s):  
Nmr Spectra ◽  
H Nmr ◽  
Elemental Analyses ◽  
Uv Visible

The synthesis of new two phthalonitrile derivatives is described. Using these starting materials, metallophthalocyanines substituted with four 1 H -benzoimidazol-2-ylsulfanyl and 2-(1 H -benzo[d]imidazol-2-ylthioetoxy) have been synthesized, respectively. The newly synthesized compounds have been characterized by elemental analyses, UV-visible, IR and 1 H NMR spectra.

scholarly journals Metallkomplexe mit Tetrapyrrol-Liganden, XXXVIII [1]. Zur Kenntnis der Alkyl- und Arylimidovanadium(IV)-Porphyrine / Metal Complexes with Tetrapyrrole Ligands, XXXVIII [1]. On the Knowledge of Alkyl- and Arylimidovanadium(IV) Porphyrins

1985 ◽  
Vol 40 (10) ◽  
pp. 1362-1370 ◽  
Author(s):  
Johann W. Buchler ◽  
Stefan Pfeifer
Keyword(s):  
Mass Spectra ◽  
Nmr Spectra ◽  
Primary Amines ◽  
Reactive Intermediate ◽  
H Nmr ◽  
Vanadyl Complex ◽  
Elemental Analyses ◽  
Paramagnetic Metal ◽  
Paramagnetic Complexes ◽  
Proton Resonances

A series of novel alkyl or aryiimidovanadium(IV) 5,10,15,20-tetra(p-tolyl)porphyrinates, VNR(TTP) (4a-4g), is described. They are obtained from the vanadyl complex, VO(TTP) (2a) via the reactive intermediate VCl2(TTP) (3b) which undergoes aminolysis with the respective primary amines RNH2 (R = tBu, Ph, pTol, pClPh, pAnis, pBiph, ptBuPh)**. The formulae are proved by elemental analyses and mass spectra. The paramagnetic complexes are stable to water and may thus be purified by chromatography but are hydrolyzed to give 2 a on treatment with acetic acid. The UV/VIS and 1H NMR spectra of 4a-4g are of the same type as 2a, but the former are slightly hypsochromically shifted, and the latter do not show the proton resonances of the organylimide ligands due to the proximity of the paramagnetic metal center.

Reaction of Ester Ethoxycarbonylhydrazones with Aliphatic Diamines

1995 ◽  
Vol 60 (5) ◽  
pp. 903-909 ◽  
Author(s):  
Aykut A. Ikizler ◽  
Kemal Sancak
Keyword(s):  
Nmr Spectra ◽  
H Nmr ◽  
Elemental Analyses ◽  
Aliphatic Diamines

Reaction of esters of (N-ethoxycarbonyl)alkanehydrazonic acids with aliphatic diamines were prepared α,ω-bis(3-alkyl-4,5-dihydro-1H -1,2,4-triazol-5- one-4-yl)alkanes. All compounds were characterized by elemental analyses, IR and 1H NMR spectra.

scholarly journals Synthesis and Antimicrobial Screening of Novel 4-Substituted Phenyl-5-[1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-yl]-2H-1,2,4-triazole-3-thiones

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Namratha Bhandari ◽  
Santosh L. Gaonkar
Keyword(s):  
Convenient Method ◽  
Nmr Spectra ◽  
Spectral Studies ◽  
Antimicrobial Screening ◽  
Antifungal Activities ◽  
H Nmr ◽  
Antibacterial And Antifungal Activities ◽  
Elemental Analyses ◽  
Antibacterial And Antifungal ◽  
C Nmr

The paper describes a convenient method for the preparation of 4-substituted phenyl-5-[1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-yl]-2H-1,2,4-triazole-3-thiones. The structures of the synthesized compounds are established by the results of LCMS, 1H NMR, 13C NMR, and IR and elemental analyses. The mercaptotriazoles are indicated to be in thione form by 1H NMR spectra. All the synthesized compounds have been screened for antibacterial and antifungal activities. Compounds 12d and 12h exhibit encouraging results, while the remaining compounds show moderate activities. On the basis of spectral studies, formation of 2-amino-1,3,4-thiadiazoles from the isobenzofuran acyl thiosemicarbazides 11(a–h) is ruled out.

scholarly journals Structural characterization and DNA-binding properties of Sm(III) complex with ofloxacin using spectroscopic methods

2009 ◽  
Vol 23 (2) ◽  
pp. 103-111 ◽  
Author(s):  
Changyun Chen ◽  
Kai Chen ◽  
Qi Long ◽  
Meihua Ma ◽  
Fei Ding
Keyword(s):  
Binding Sites ◽  
Nmr Spectra ◽  
Uv Spectroscopy ◽  
Binding Constants ◽  
Binding Properties ◽  
H Nmr ◽  
Elemental Analyses ◽  
Displacement Experiments ◽  
Ct Dna ◽  
Dna Binding Properties

A novel complex Sm(III) complex with ofloxacin was synthesized and characterized on the basis of elemental analyses, molar conductivities, IR spectra, thermal analysis (TG-DSC),1H-NMR spectra. Then, spectrometric titration, ethdium bromide displacement experiments by UV spectroscopy, ionic influence, viscosity measurements and Circular Dichroism (CD) spectroscopic measurements were conducted to characterize the interaction between the complex and CT-DNA. Results obtained indicate that the complex bound with CT-DNA via an intercalation mechanism. The binding constants and binding sites number of the Sm(III) complex with CT-DNA were 1.80×105l·mol−1and 1, respectively.

scholarly journals Synthesis and Antimicrobial Activity of Pyrimidine Salts with Chloranilic and Picric Acids

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
C. Mallikarjunaswamy ◽  
D. G. Bhadregowda ◽  
L. Mallesha
Keyword(s):  
Antimicrobial Activity ◽  
The Other ◽  
Spectral Studies ◽  
H Nmr ◽  
Antibacterial And Antifungal Activities ◽  
Elemental Analyses ◽  
Ft Ir ◽  
Uv Visible ◽  
Antibacterial And Antifungal

Pyrimidine salts such as 2-methyl-5-nitro-phenyl-(4-pyridin-3-yl-pyrimidin-2-yl)-amine (1) and 4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-yl-amino)-phenyl-amine (2) with chloranilic and picric acids were synthesized, and theirin vitroantibacterial and antifungal activities were evaluated. The synthesized compounds were characterized by elemental analyses, UV-visible, FT-IR, and1H NMR spectral studies. Compound2aexhibited good inhibition towards antimicrobial activity compared to the other compounds.

scholarly journals Structural and Surface Characterization of Newly Synthesized D-π-D Type Schiff Base Ligand: (1E,2E)-3-[4-(Dimethylamino)phenyl]prop-2-en-1-ylidene)phenylamine

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Gulsah Gumrukcu ◽  
Serkis Garikyan ◽  
Gulnur Keser Karaoglan ◽  
Dolunay Sakar
Keyword(s):  
Schiff Base ◽  
Surface Properties ◽  
Schiff Base Ligand ◽  
Mass Spectra ◽  
Surface Characterization ◽  
Acid Base ◽  
H Nmr ◽  
Elemental Analyses ◽  
Uv Visible

A new Schiff base with D-π-D type, (1E,2E)-3-[4-(dimethylamino)phenyl]prop-2-en-1-ylidene)phenylamine, has been successfully synthesized using the reaction of (2E)-3-[4-(dimethylamino)phenyl]acrylaldehyde with aniline. The Schiff base ligand has been characterized by FTIR, UV-visible, and1H NMR as well as TG/DTA, SEM, BET, and elemental analyses and mass spectra. Surface properties and acid-base constants of Schiff base ligand were determined by IGC measurements.

Synthesis of Substituted Furo[2',3':4,5]pyrrolo[1,2-d][1,2,4]triazolo[3,4-f][1,2,4]triazines

1995 ◽  
Vol 60 (4) ◽  
pp. 709-714 ◽  
Author(s):  
Vladimír Bobošík ◽  
Alžbeta Krutošíková ◽  
Miloslava Dandárová
Keyword(s):  
Nmr Spectra ◽  
H Nmr ◽  
Elemental Analyses

The title compounds were prepareed by reaction of 1,2-dihydrofuro[2',3':4,5]pyrolo[1,2-d][1,2,4]-1-hydrazones by cyclization with triethyl orthoformiate or triethyl orthoacetate. All compounds were characterized by elemental analyses, UV and 1H NMR spectra.

scholarly journals Synthesis, Characterization, and Antimicrobial Activity Studies of Ni(II) Complex with Pyridine as a Ligand

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Faridul Islam ◽  
Md. Amran Hossain ◽  
Nur Mostaq Shah ◽  
Hridika Talukder Barua ◽  
Md. Alamgir Kabir ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Nmr Spectra ◽  
Conductivity Measurement ◽  
Molar Conductivity ◽  
Molecular Formula ◽  
H Nmr ◽  
Square Planar ◽  
Elemental Analyses ◽  
Prepared Complex ◽  
C Nmr

We represent a metal complex which has been synthesized by the simple reaction with Ni(II) chloride and pyridine (as a lignd) affording a complex having the molecular formula [NiC5H5N2Cl2], characterized on the basis of elemental analyses, electronic, infrared,1H NMR,13C NMR spectra, magnetic susceptibility, and also aid of molar conductivity measurement. Conductivity measurement reveals nonelectrolytic nature of the complex. IR and13C NMR spectra reveal the presence ofcis- andtrans-structure. On the basis of above analyses the square planarcis- andtrans-structures are proposed for the prepared complex.

New Polymer Synthesis 99. Hyperbranched Poly(Ester-Imide)S Derived from 4,5-Dichlorophthalic Acid

1998 ◽  
Vol 10 (3) ◽  
pp. 217-229 ◽  
Author(s):  
Hans R Kricheldorf ◽  
Oliver Bolender ◽  
Thomas Wollheim
Keyword(s):  
Nmr Spectra ◽  
Variable Degree ◽  
Carboxylic Group ◽  
Degree Of Branching ◽  
Glass Transition Temperatures ◽  
Oh Groups ◽  
H Nmr ◽  
Hyperbranched Poly ◽  
Elemental Analyses ◽  
Phenolic Oh Groups

A new trifunctional monomer was prepared from ethyl-4-(4,5-dichlorophthalimido) benzoate and 4-mercaptophenol. The phenolic OH groups were acetylated, and the carboxylic group was silylated to reduce the melting temperature. A successful homopolycondensation yielding a completely soluble hyperbranched poly(ester-imide) was only obtained when the silylated monomer was used. This branching monomer was polycondensed with a difunctional imide monomer to yield co(polyester-imide)s having a variable degree of branching. Furthermore, copolycondensations with 3-acetoxybenzoic acid or 3,5-bisacetoxybenzoic acid (and their trimethylsilyl esters) were studied. The composition of the resulting copolyesters were checked by elemental analyses and 1H NMR spectra. The glass transition temperatures ( T g s) showed a systematic variation between the values of the parent homopolyesters.

Porphyrazines with annulated diazepine rings 4: Synthesis and properties of MgII tetradiazepinoporphyrazine carrying exocyclic styryl fragments

2012 ◽  
Vol 16 (07n08) ◽  
pp. 968-976 ◽  
Author(s):  
Pavel A. Stuzhin ◽  
Pavel Tarakanov ◽  
Svetlana Shiryaeva ◽  
Anna Zimenkova ◽  
Oscar I. Koifman ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Spectral Data ◽  
Nmr Spectra ◽  
Intermolecular Hydrogen Bonding ◽  
Monomeric Form ◽  
Monomeric Species ◽  
Fluorescence Response ◽  
H Nmr ◽  
Uv Visible

A novel tetradiazepinoporphyrazine MgII complex bearing eight peripheral styryl substituents, [St8TDzPAMg(H2O)] ( St = -CH=CHAr , where Ar = 4-methoxyphenyl ) was prepared by template cyclotetramerization of the corresponding precursor — 5,7-distyryl substituted diazepino-2,3-dicarbonitrile — in the presence of MgII butoxide in n-butanol. UV-visible and 1H NMR spectral data indicate that the complex is strongly aggregated in non-coordinating solvents (dichloromethane, chloroform, benzene), it is dimeric in pyridine, whereas it is predominantly monomeric in dimethylsulfoxide and dimethylformamide. The fluorescence response is high for solutions in which the monomeric form is prevalent, but it is strongly quenched as the content of the dimer is increased. Evidence was obtained that dimerization occurs due to intermolecular hydrogen bonding between acidic CH2 groups in the diazepine ring (6H form) of one molecule with meso- and/or diazepine N atoms of another molecule, dimerization being also contributed by the presence of chlatrated water. In the presence of fluoride anions the dimer is destroyed with formation of the monomeric species, which is changed to the 1H form upon heating, as indicated by 1H NMR spectra.

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