Makale Koleksiyonu: Recent submissions

Now showing items 21-40 of 753

The fundamental absorption edge and optical constants of some charge transfer compounds

Arslan, Mustafa (ELSEVIER SCIENCE BV, 2004)

A series of the charge-transfer compounds determined as 1:1 stochiometric ratio by job method has been prepared with the interaction of 7,7,8,8-tetracyanoquinodimethane (TCNQ) and anthracene, 9-methylanthracene, 9-bromanthracene ...
Hydrolysis of steroidal esters catalysed by tetracyanoethylene

Yıldırım, Kudret (1998)

Tetracyanoethylene has been shown to be a mild catalyst which possesses some stereoselectivity, for the hydrolysis of the esters of steroidal alcohols.
Determination of electrical conduction mechanism and optical band gap of a new charge transfer complex: TCNQ-PANT

Arslan, Mustafa (PERGAMON-ELSEVIER SCIENCE LTD, 2004)

A new charge-transfer compound PANT-TCNQ (PANT = 9-phenylanthracene, TCNQ = 7,7,8,8-tetracyanoquinodimethane) has been prepared from 7,7,8,8-tetracyanoquinodimethane (TCNQ) and 9-Phenylanthracene in dichloromethane at room ...
Selenium content of Turkish hazelnut varieties: Kara Findik, Tombul and Delisava

Dündar, Mustafa Şahin; Altundağ, Hüseyin (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004)

The selenium contents of three different varieties of hazelnut, namely Kara Findik, Tombul, and Delisava, which are cultivated in Sakarya, Turkey, were studied for variety and geographical region. The hazelnut kernels ...
Multivariate spectral calibration technique based on regression analysis for the quantitative multiresolution of a ternary mixture containing paracetamol, ascorbic acid and acetylsalicylic acid in effervescent tablets

Özdemir, Abdil (GOVI-VERLAG GMBH, 2004)

Multivariate spectral calibration techniques based on regression analysis were established for the quantitative multiresolution of a ternary mixture containing parecetamol (PAR) ascorbic acid (AA) and acetylsalicylic acid ...
Synthesis, characterization, biological evaluation, and molecular docking studies of some piperonyl-based 4-thiazolidinone derivatives

Genç Bilgiçli, Hayriye; Parham Taslimi; Busra Akyuz; Burak Tuzun; Ilhami Gulcin (WILEY-V C H VERLAG GMBH, 2020)

Heterocyclic compounds are of particular importance among pharmacologically active compounds. In this study, some piperonyl-based 4-thiazolidinone derivatives (2a-i) were synthesized and characterized by spectroscopic ...
Application of kinetic models to the sorption of disperse dyes onto alunite

Özacar, Mahmut; Şengil, İsmail Ayhan (ELSEVIER SCIENCE BV, 2004)

The sorption of three disperse dyes, namely, Disperse Blue 56 (DB56), Disperse Red 74 (DR74) and Disperse Yellow 119 (DY119), onto alunite has been studied in terms of pseudo-first- and second-order sorptions and intraparticle ...
Novel approach with polyfluorene/polydisulfide copolymer binder for high-capacity silicon anode in lithium-ion batteries

Bulut, Emrah; Güzel, Emre; Neslihan Yuca; Omer S. Taskin (WILEY, 2020)

In this study, as a novel design with the collaboration of a fluorene and sulfide-based copolymer for Li-ion battery application is presented. Polyfluorene-co-polydisulfide is prepared with desired functional groups to ...
A Photoelectrochemical Biosensor Fabricated using Hierarchically Structured Gold Nanoparticle and MoS2 on Tannic Acid Templated Mesoporous TiO2

Çakıroğlu, Bekir; Özacar, Mahmut (WILEY-V C H VERLAG GMBH, 2020)

In a tannic acid assisted synthesis of mesoporous TiO2, tannic acid was used as a cost effective and non-toxic template for pore formation. Meanwhile, a gold nanoparticles (Au NPs) deposited TiO2 nanocomposite was coated ...
Optoelectronic parameters of peripherally tetra-substituted copper(ii) phthalocyanines and fabrication of a photoconductive diode for various conditions

Günsel, Armağan; Ahmet T. Bilgicli; Hasan Piskin; Burak Tuzun; M. Nilufer Yarasir; Bayram Gunduz (ROYAL SOC CHEMISTRY, 2020)

In this study, the molecular structure of 4-(4-(trifluoromethoxy)phenoxy)phthalonitrile (1) has been elucidated and its supra-molecular dynamics have been revealed by the analysis of single crystal X-ray diffraction ...
rac- and meso-Cyclohexanoids: Their alpha-, beta-glycosidases, antibacterial, antifungal activities, and molecular docking studies

Emel Karakilic; Baran, Şule; Hatice Ogutcu; Atilla Akdemir; Baran, Arif (WILEY-V C H VERLAG GMBH, 2020)

An efficient and versatile synthesis method has been postulated for hydroxymethylated rac- and meso-cyclohexanoid derivatives. The synthesis of these stereoisomers was achieved easily with traditional methods using ...
Synthesis and biological evaluation of novel coumarin-chalcone derivatives containing urea moiety as potential anticancer agents

Belma Zengin Kurt; Nur Ozten Kandas; Aydan Dag; Sönmez, Fatih; Küçükislamoğlu, Mustafa (ELSEVIER, 2020)

The increasing interest on new drug discovery is constantly up to date as drugs do not increase survival adequately against increasing cancer cases worldwide. Based on the reported anticancer activity of coumarin, chalcone ...
Photophysical, photochemical and DNA binding studies of prepared phthalocyanines

Baran, Arif; Sumeyye Col; Emel Karakilic; Furkan Ozen (PERGAMON-ELSEVIER SCIENCE LTD, 2020)

Although the phthalocyanine compounds (3a, 3b and 3c) shoved low iron-containing iron chelating properties compared to EDTA, they can be said to have high metal chelating properties at the specified concentrations for this ...
A novel ANN-based four-dimensional two-disk hyperchaotic dynamical system, bifurcation analysis, circuit realisation and FPGA-based TRNG implementation

Sundarapandian Vaidyanathan; Pehlivan, İhsan; Leutcho Gervais Dolvis; Kengne Jacques; Murat Alcin; Tuna, Murat; Ismail Koyuncu (INDERSCIENCE ENTERPRISES LTD, 2020)

This paper describes the modelling, bifurcation analysis, circuit realisation and FPGA implementation of a novel ANN-based four-dimensional two-disk dynamical system exhibiting hyperchaos and hidden attractor. This paper ...
Novel carvacrol based new oxypropanolamine derivatives: Design, synthesis, characterization, biological evaluation, and molecular docking studies

Arlinda Bytyqi-Damoni; Ali Kestane; Parham Taslimi; Burak Tuzun; Zengin, Mustafa; Genç Bilgiçli, Hayriye; Ilhami Gulcin (ELSEVIER, 2020)

Carvacrol, as a natural product used for many years in the treatment of various diseases, therefore it was chosen as the starting compound for this study. Novel carvacrol based new oxypropanolamine derivatives were synthesized ...
Extraction of citric acid through an emulsion liquid membrane containing Aliquat 336 as carrier

Manzak, Aynur; Tutkun, Osman (MARCEL DEKKER INC, 2004)

The extraction of citric acid from aqueous solutions through an emulsion liquid membrane containing Aliquat 336 carrier was studied. For the emulsions to be functionally stable, it was necessary to select suitable combinations ...
Reinvestigations of the reactions of hexachlorocyclotriphosphazene with difunctional primary amines leading to novel dangler, ansa and bridged derivatives. Spectroscopic studies of the derived products

Sedat Ture; Hulya Silah; Tuna, Murat (ELSEVIER, 2020)

In an extension of the research on the nucleophilic substitution reactions of hexachlorocyclotriphosphazene (1) with linear aliphatic primary diamines, NH2-(CH2)(n) -NH2 (n = 3, 5, 6 and 8) are surveyed. In the presence ...
Phthalocyanines including 2-mercaptobenzimidazole analogs: Synthesis, spectroscopic characteristics, quantum-chemical studies on the relationship between electronic and antioxidant properties

Hasan Yakan; M. Serdar Cavus; Güzel, Emre; Baris S. Arslan; Temelkan Bakir; Halit Muglu (ELSEVIER, 2020)

In this study, peripherally tetra 2-mercaptobenzimidazole group substituted cobalt and indium phthalocyanine complexes (2 and 3) were prepared from 4-(benzo[d]imidazole-2-ylthio)phthalonitrile (1) for the first time. ...
Magnetically separable MnFe2O4/TA/ZnO nanocomposites for photocatalytic degradation of Congo Red under visible light

Belgassim Boutra; Güy, Nuray; Özacar, Mahmut; Mohamed Trari (ELSEVIER, 2020)

Recently, the use of carbon based materials and magnetic nanoparticles for supporting or coupling with metal oxides such as ZnO is a promising axis. The use of carbon materials enhances the photocatalytic performance of ...
Novel biologically active metallophthalocyanines as promising antioxidant-antibacterial agents: Synthesis, characterization and computational properties

Günsel, Armağan; Abdullah Kobyaoglu; Ahmet T. Bilgicli; Burak Tuzun; Busra Tosun; Arabacı, Gülnur; M. Nilufer Yarasir (ELSEVIER, 2020)

This study reports on the synthesis and characterization of non-peripherally tetrasubstituted zinc(II), copper(II) and cobalt(II) phthalocyanines with 4-(trifluoromethylthio)phenoxy substituents. Synthesized compounds were ...