Yazar "Kabak, M." seçeneğine göre listele

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  • [ X ]
    Öğe
    (3, 3-Dichloro-1, 4-Diphenyl-2-Azetidinone)
    (Int Union Crystallography, 1999) Guven, K.; Durlu, T. N.; Kabak, M.; Guner, V.
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  • [ X ]
    Öğe
    (3,3-Dichloro-4-(P-Methoxyphenyl)-1-(P-Chlorophenyl)-2-Azetidinone)
    (Int Union Crystallography, 1999) Durlu, T. N.; Guven, K.; Kabak, M.; Guner, V.
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  • Küçük Resim
    Öğe
    Crystal and molecular structures of 1-[3-(3,4-dimethoxyphenyl)-2-propenoyl]pyrrolidine
    (Japan Soc Analytical Chemistry, 2003) Tarimci, C.; Karamustafa, A.; Güven, K.; Kabak, M.; Yesilada, A.
    The crystal structure of 1-[3-(3,4-dimethoxyphenyl)-2-propenoyl]pyrrolidine (C15H19NO3) (I) has been determined by X-ray analysis. It crystallizes orthorhombic space group Pbca with a = 24.295(3), b = 15.086(3), c = 7.552(3)A, V = 2768(1)Angstrom(3), Z = 8, D-calc = 1.254 g/cm(3), mu = (Mo K-alpha) = 0.87 cm(-1). The title compound has analgesic activity of cycloaliphatic amine part. The molecule is deviated from planar configuration.
  • [ X ]
    Öğe
    Crystal structure and tautomerism of 1-[N-(4-iodophenyl)]aminomethylidene-2(1H)naphthalenone
    (Verlag Z Naturforsch, 2001) Ünver, H.; Kabak, M.; Zengin, D.M.; Durlu, T.N.
    1-[N-(4-Iodophenyl)]aminomethylidene-2(1H)naphthalenone (1) (C17H12NOI) has been studied by X-ray analysis, IR, H-1 NMR, UV and AM1 semi-empirical quantum mechanical methods. It crystallises in the monoclinic space group P2(1)/n with a=4.844(3), b=21.428(2), C=13.726(2) Angstrom, beta =93.07(2)degrees (R1=0.032 for 4132 reflections [I>2 sigma (I)]). The title compound is not planar and an intramolecular hydrogen bond connects O1 and N1 [2.530(4) Angstrom]. Complementary IR, H-1 NMR and UV measurements in the solution and solid states were carried out. Tautomerism and conformations of the title compound were also investigated by AM1 semi-empirical quantum mechanical calculations and the results are compared with the X-ray data.
  • Küçük Resim
    Öğe
    Crystal structure of 3,3-dichloro-N-p-methoxyphenyl-4-(2-phenyistryl)-2-azetidinone
    (Japan Soc Analytical Chemistry, 2003) Kabak, M.; Guner, V.; Elerman, Y.I.; Durlu, T.N.
    3.3-Dichloro-N-p-methoxyphenyl-4-(2-phenylstryl)-2-azetidinone (C22H15Cl2NO2) was studied by X-Ray analysis, which indicated a monoclinic space group, P2(1)/c, with a = 9.619(5), b = 13.879(4), c = 14.161(5)Angstrom, beta = 100. 16(3)degrees, V = 1860.8(13)Angstrom(3), Z = 4, D-c = 1.414 g cm(-3), mu(Mo K-a) = 0.366 mm(-1) and F-000 = 816. The structure was solved by direct methods and refined to R = 0.041 for 4026 reflections [I > 2sigma(I). The beta-lactam ring (2-azetidinone) has antimicrobial affects. The substituents of the methoxyphenyl and phenyl substituents do not change the activity property of the betalactam ring, and the activity properties depend on the planarity of the beta-lactam ring.
  • Küçük Resim
    Öğe
    Keto-enol tautomerism, conformations, and structure of 1-[N-(4-chlorophenyl)]aminomethylidene2(1H)naphthalenone
    (Springer/Plenum Publishers, 2001) Ünver, H.; Kabak, M.; Zengin, D.M.; Durlu, T.N.
    1-[N-(4-chlorophenyl)]aminomethylidene-2(1H)naphthalenone (C17H12NOCl) (1) was synthesized and the crystal structure was determined. Compound I crystallizes in the monoclinic space group P2(1)/n with a = 4.761(3) Angstrom, b = 20.347(1) Angstrom, c = 13.773(2) Angstrom, beta = 92.89(3)degrees, V = 1332.4(3) Angstrom(3), Z = 4, D-c = 1.404 g cm(-3), mu(Mo Kalpha) = 0.28 mm(-1), and R = 0.036 for 2680 reflections [I > 2sigma(I)]. Molecule I is not planar, and the dihedral angle between the naphthaldeyde plane A [Cl-C11, 01] and the 4-chloroaniline plane B [C12-C17, C11, N1] is 20.1(3)degrees. An intramolecular hydrogen bond occurs between the hydroxyl oxygen and imine nitrogen atoms [2.528(3) Angstrom]. IR, H-1 NMR, and UV measurements and AM1 semiempirical quantum mechanical calculations support the keto form found in the X-ray structure.