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    AMINOPHOSPHINES DERIVED FROM 1-AMINO-4-METHYLPIPERAZINE: SYNTHESIS, OXIDATION AND COMPLEXATION REACTIONS
    (TAYLOR & FRANCIS LTD, 2012) Sarioz, Ozlem; Oznergiz, Sena
    Functionalized mono(amino)phosphines of the type Ph2PNHR (1) and bis (amino) phosphine of the type PhP(NHR)(2) (2) have been synthesized by treating Ph2PCl or PhPCl2 with 1-amino-4-methylpiperazine. Ligands react with aqueous hydrogen peroxide, elemental sulfur, or selenium to give the corresponding chalcogenides in good yields. The molybdenum complexes of the aminophosphines have been obtained. All of the new compounds were characterized by IR, H-1, and P-31-NMR spectroscopy and elemental analysis.
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    Aminophosphines Derived from N-Phenylpiperazine and N-Ethylpiperazine: Synthesis, Oxidation Reactions, and Molybdenum Complexes
    (WILEY-BLACKWELL, 2011) Sarioz, Ozlem; Oznergiz, Sena; Saracoglu, Hanife; Buyukgungor, Orhan
    Functionalized aminophosphine of the type Ph2PNR2 (1,2) have been synthesized by treating Ph2PCl with N-phenylpiperazine or N-ethylpiperazine. Oxidation of these ligands with aqueous hydrogen peroxide, elemental sulfur or selenium afforded the corresponding phosphine oxides 3,4, sulfides 5,6, and selenides 7,8 in good yields. The molybdenum complexes of the aminophosphines have been obtained. All new compounds were fully characterized by IR, NMR, and microanalysis, and the molecular structures of two representative compounds were determined by single-crystal X-ray crystallography. (C) 2011 Wiley Periodicals, Inc. Heteroatom Chem 22: 679-686, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.20733
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    Bis(4-methylpiperidinyl)-phenylphosphine and bis(4-benzylpiperidinyl)-phenylphosphine: Synthesis, derivatization, molybdenum complexes and DFT calculations
    (PERGAMON-ELSEVIER SCIENCE LTD, 2014) Sarioz, Ozlem; Kandemirli, Fatma; Oznergiz, Sena
    Functionalized bis(amino)phosphines of the type PhP(NR2)(2) have been synthesized by treating PhPCl2 with 4-methylpiperidine or 4-benzylpiperidine. The ligands react with aqueous hydrogen peroxide, elemental sulfur or selenium to give the corresponding chalcogenides in good yield. The molybdenum complexes of the bis(amino)phosphines have been obtained. All of the compounds were obtained in good yields and were characterized by IR, NMR and elemental analysis. Quantum chemical calculations, such as HOMO-LUMO energies, Mulliken charges etc., were carried out using B3LYP/6-31G(d,p), a version of the DFT method with the standard GAUSSIAN 09 software package program for the bis(amino)phosphines and their chalcogenides. The experimental and theoretical results show that PPh(NC5H9CH3)(2) (1) and PPh(NC5H9CH2C6H5)(2) (2) are strong sigma-donors and have similar electronic properties. (C) 2013 Elsevier Ltd. All rights reserved.
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    Bis(amino)phosphines Derived From N-phenylpiperazine and N-ethylpiperazine: Synthesis, Oxidation Reactions, and Molybdenum Complexes
    (TAYLOR & FRANCIS INC, 2013) Sarioz, Ozlem; Oznergiz, Sena; Kandemirli, Fatma
    Functionalized bis(amino)phosphines that are the type PhP(NR2)2 (1,2) have been synthesized by treating PhPCl2 with N-phenylpiperazine or N-ethylpiperazine. Ligands react with aqueous hydrogen peroxide, elemental sulfur, or selenium to give the corresponding chalcogenides (38) in good yield. The molybdenum complexes of the bis(amino)phosphines (9,10) have been obtained. All of the compounds obtained in good yields and they were characterized by IR, NMR, microanalysis, and also quantum chemical calculations such as HOMO-LUMO energies, Mulliken charges, and dipole moment for compounds 18 and complex 9 were carried out by using B3LYP/6-31G(d,p), a version of the DFT method with standard Gaussian 09 software package program.
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    Crystal structure, spectroscopic investigations. and quantum chemical calculational studies of N-diphenylphosphino-4-methylpiperidine sulfide
    (ELSEVIER SCIENCE BV, 2014) Saracoglu, Hanife; Sarioz, Ozlem; Oznergiz, Sena
    The title molecule, N-diphenylphosphino-4-methylpiperidine sulfide (I), has been synthesized and characterized by elemental analysis, H-1 NMR, P-31 NMR, IR and X-ray single-crystal determination. The molecular geometry from X-ray determination, vibrational frequencies and gauge, including atomic orbital (GIAO) H-1 NMR and P-31 NMR chemical shift values of the title compound (I) in the ground state have been calculated using the density functional theory with the 6-31G(d), 6-31G(d,p) and 6-311G(d,p) basis sets. The calculated results show that the optimized geometry can well reproduce the crystal structure, and theoretical vibrational frequencies and chemical shift values show good agreement with experimental values. The predicted nonlinear optical properties of the title compound are greater than those of urea. In addition, DFT calculations of the molecular electrostatic potentials, frontier molecular orbitals of the title compound were carried out at the B3LYP/6-31G(d) level of theory. (C) 2014 Elsevier B.V. All rights reserved.
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    Fabrication and Characterization of Dysprosium-Doped Bismuth Oxide Films for IT-SOFCs via Slurry Spin Coating Technique
    (WILEY, 2015) Ersoy, Ersay; Cakar, Soner; Yildiz, Esra; Yilmaz, Serdar; Turkoglu, Orhan; Sarioz, Ozlem
    The production and stabilization of the fcc-phase Bi2O3 solid solution (delta-DSB) in the binary system of (Bi2O3)(1-x)(Dy2O3)(x) have been investigated in the doping range of 0.10 <= x <= 0.25 by adding Dy2O3 into pure alpha-Bi2O3. All delta-DSB samples were stabilized and exhibited single d-phase at 800 degrees C. Thick film solid electrolytes were produced by the spin coating method. All of the coating and sintering parameters were optimized. Crystallographic, microstructural, and electrical characterizations were made for the produced films. The highest value of conductivity was similar to 1-10 Scm(-1) for 11-15 mol% delta-DSB film samples. The electrical conductivity curves of samples showed regular increase.
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    Heavy-metal extraction capability of chalcogenoic aminophosphines derived from 1-amino-4-methylpiperazine
    (VERSITA, 2013) Sarioz, Ozlem; Surme, Yavuz; Muradoglu, Vefa
    Aminophosphine of the type (Ph2PNHR) derived from 1-amino-4-methylpiperazine and its chalcogen derivatives (Ph2P(X)NHR X = S, Se) were used as ligands in solvent extraction of metal picrates such as Cu2+, Ni2+, and Pb2+ from the aqueous to the organic phase. Influence of parameters such as pH of the aqueous phase, ligand concentration in the organic phase, and concentration of the extractant extracted from the aqueous to the organic phase was investigated to determine the ligands' ability to extract metal ions. Metal picrate extraction was investigated at 25A degrees C using UV-VIS spectrophotometry in dichloromethane in the absence and in the presence of Ph2PNHR and chalcogenides. The extraction results revealed that the extraction percentage of Cu2+, Ni2+, and Pb2+ metals was much higher at lower pH values, indicating an acidity dependent complexation equilibrium.
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    STUDIES ON THE HEAVY METAL REMOVAL EFFICIENCY AND ANTIBACTERIAL ACTIVITY OF 2-(DIPHENYLPHOSPHINO)AMINOPYRIDINE
    (Soc Chemists Technologists Madeconia, 2018) Sarioz, Ozlem; Malgac, Burcu; Surme, Yavuz; Ilk, Sedef; Karaarslan, Muhsin
    The solvent extraction of metal picrates such as Ni2+, Cu2+, Co2+, Pb2+ and Cd2+ from the aqueous to the organic phase was studied using 2-(diphenylphosphino)aminopyridine (Ph(2)PNHpy). The effects of parameters including the pH of the aqueous phase and the ligand solution volume were investigated to determine the extraction ability of the ligand for metal ions. The results showed that the extraction percentages of metal ions were high at low pH values. The antibacterial activity of the aminophosphine was also screened against Escherichia coli (E. coli) ATCC 25922, Staphylococcus aureus (S. aureus) ATCC 25923, Pseudomonas syringae pv. tomato (P. syringae) DC300, Salmonella enterica serotype Typhmurium (S. typhmurium) SL 1344 and Streptococcus mutans (S. mutans) ATCC 25175. From the studies of antibacterial activity, it was observed that the ligand exhibited a potent inhibitory effect against all Gram-negative and Gram-positive bacteria with a diameter of inhibition zone ranging from 3.86 to 18.10 mm. The aminophosphine ligand (Ph(2)PNHpy) should be considered as a suitable bio-active molecule for antimicrobial material design and next-generation, non-toxic drug fabrication. The Ph(2)PNHpy obtained may have the potential for use as an antimicrobial additive for bioengineering applications.
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    Synthesis and Characterization of Aminophosphines, Bis(amino) phosphine Derivatives, and Their Molybdenum(0) Complexes
    (TAYLOR & FRANCIS LTD, 2009) Sarioz, Ozlem; Serindag, Osman; Abdullah, Meysun I.
    Functionalized bis(amino)phosphines of the type PhP(NHR)(2) (1a-c) and aminophosphines of the type Ph(2)PNHR (2a-c) have been synthesized by treating PhPCl(2) or Ph(2)PCl with corresponding primary amines of H(2)N-R where R = -CH(2)SO(3)H, -C(6)H(4)SO(3)H, and benzo-15-crown-5. The molybdenum(0) complex of the aminophosphine (3) has been obtained by reacting cis-[Mo(CO)(4)(bipy)] with aminophosphine (2c). The synthesized aminophosphines, bis(amino) phosphines, and the molybdenum(0) complex have been characterized by IR, (1)H NMR, (31)P NMR, and MS spectroscopic techniques and by elemental analysis.
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    Synthesis and Characterization of Monoaminophosphine, Bis(Amino) Phosphine Derivatives, and their Metal Complexes
    (TAYLOR & FRANCIS INC, 2011) Sarioz, Ozlem; Oznergiz, Sena
    Functionalized monoaminophosphine of the type Ph2PNR2 (1 and 3) and bis(amino) phosphine of the type PhP(NR2)(2) (2) have been synthesized by treating Ph2PCl or PhPCl2 with corresponding amines. Ligands react with aqueous hydrogen peroxide, elemental sulfur, or selenium to give the corresponding chalcogenides in good yield. The metal complexes of the aminophosphines have been obtained. All of the compounds were obtained in good yields and were characterized by IR, NMR, and microanalysis.
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    Synthesis and characterization of triethylammonium 2-(diphenylphosphinoamino)-5-methylbenzenesulfonate and use of it as a new complexing agent in solvent extraction of Ni (II) ions from water
    (TAYLOR & FRANCIS INC, 2013) Sarioz, Ozlem; Surme, Yavuz; Muradoglu, Vefa; Malgac, Burcu
    Triethylammonium 2-(diphenylphosphinoamino)-5-methylbenzenesulfonate (2) has been synthesized by treating Ph2PCl with 4-aminotoluene-3-sulfonic acid. The new compound was characterized by IR, H-1- and P-31-NMR, and elemental analysis. Liquid-liquid extraction of Ni (II) ions using synthesized aminophosphine derivative as new extractants was studied. The influence of critical parameters on the extraction properties of aminophosphine derivative such as solution pH and ligand mass were investigated. The liquid-liquid extraction ability of newly synthesized compound has also been compared another aminophosphine derivative (1). UV-vis spectrophotometry used to determine the liquid/liquid extraction efficiencies of Ni (II) metal ions at various conditions. Both of the extractant was found to be efficient for extraction of Ni (II) metal ions with recoveries of 84.8 and 81.5% for ligands 1 and 2 respectively.
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    SYNTHESIS, CHARACTERIZATION AND AB INITIO CALCULATIONS OF AMINOPHOSPHINE DERIVED FROM 4-BENZYLPIPERIDINE, ITS CHALCOGENIDE DERIVATIVES AND MOLYBDENUM(0) COMPLEX
    (TAYLOR & FRANCIS LTD, 2014) Sarioz, Ozlem; Cirak, Cagri; Muradoglu, Vefa; Oznergiz, Sena
    Functionalized monoaminophosphine PPh2NC5H9CH2C6H5 has been synthesized by treating Ph2PCl with 4-benzylpiperidine. The ligand reacts with aqueous hydrogen peroxide, elemental sulfur or selenium to give the corresponding chalcogenides in good yield. The molybdenum complex of the aminophosphine has been obtained. All of the new compounds were obtained in good yields and were characterized by IR, NMR, elemental analysis. Theoretical calculations were carried out by using the Hartree-Fock and density functional methods with the 6-31G(d) basis set. [Supplementary materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements for the following free supplemental files: Additional tables and figures.]
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    The worthy green heterogeneous Fenton degradation process for removal of E102 in foodstuffs and industrial waste-waters using Cypress arizonica leaves based magnetic nanocomposite (CA-Fe3O4-MNc)
    (Elsevier, 2024) Cetin, Fatma Gul; Solak, Hatice Gulsum; Erkan, Merve; Sarioz, Ozlem; Bisgin, Abdullah Taner
    A new, green magnetic nanocomposite (MNc) was synthesized based on framework of Cypress arizonica (CA) leaves and then used as Fenton catalyst for removal of tartrazine (E102) in foodstuffs and industrial wastewaters. Characterization of the synthesized magnetic nanocomposite (CA-Fe 3 O 4 -MNc) was performed with IR, EDX, FESEM, XRD and pH pzc analyses. The average particle size and pH pzc of the CA-Fe 3 O 4 -MNc were determined to be 24.36 nm and 6.8, respectively. CA-Fe 3 O 4 -MNc was composed of C (15.08 %), Fe (51.86 %), O (31.80 %) and Ca (1.26 %) elements. The parameters effecting heterogeneous Fenton dye removal process including pH, catalyst amount, reaction time, H 2 O 2 and initial dye concentrations were investigated to achieve the best removal efficiency for E102. Under optimal conditions, the matrix effect was investigated, the reusability of CA-Fe 3 O 4 -MNc was tested, degradation products and mechanism were elucidated, and green analytical procedure index (GAPI) and analytical eco-scale (AES) of the proposed Fenton degradation process were evaluated. E102 removal values were obtained between 93 and 99 % in the applications of some foodstuffs, water samples and artificial model dye solutions. Proposed heterogeneous Fenton removal process with using CA-Fe 3 O 4 -MNc catalyst exhibited quantitative removal efficiency for E102. E102 concentrations between 5 and 50 mg/L were removed successfully. It was observed that the synthesized CA-Fe 3 O 4 -MNc material could be used at least 5 times to obtain quantitative removal values. The percent removal efficiency value decreased to 93 after five uses. Defined GAPI parameters and calculated AES scores indicated that the proposed CA-Fe 3 O 4 -MNc based heterogeneous Fenton degradation process could be considered that a valuable green removal method.