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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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    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, 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.]