DSpace Home
→
Fakülteler / Faculties
→
Fen-Edebiyat Fakültesi
→
Fizik / Physics
→
Browsing Fizik / Physics by Subject

Browsing Fizik / Physics by Subject "Crystallography"

Now showing items 1-20 of 26

1-Ethyl-N '-[(E)-4-hydroxybenzylidene]-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carbohydrazide

Delibaş, Nagihan (WILEY-BLACKWELL PUBLISHING, INC, 2009)

In the crystal structure of the title compound, C(19)H(18)N(4)O(3), the fused-ring system is essentially planar [maximum deviation is 0.031 ( 2) angstrom] while the dihedral angle between the ring system and the benzene ...
2-(1H-Benzimidazol-1-yl)-1-(2-furyl)-3-phenylpropan-1-one

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2007)

In the molecule of the title compound, C20H16N2O2, the planar benzimidazole system is oriented with respect to the furan and phenyl rings with dihedral angles of 87.41 (10) and 61.65 (5)degrees, respectively. In the crystal ...
2-(1H-Benzimidazol-1-yl)-1-(furan-2-yl)-ethanone O-2,4-dichlorobenzyloxime

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2007)

In the title compound, C20H15Cl2N3O2, intramolecular C-H...O hydrogen bonding causes the formation of a planar six-membered ring, which is also coplanar with the adjacent furan ring. The benzimidazole ring system is also ...
2-(1H-benzimidazol-1-yl)-1-phenylethanone oxime

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2007)

In the molecule of the title compound, C15H13N3O, intramolecular C-H center dot center dot center dot O hydrogen bonding causes the formation of a planar five-membered ring. The oxime unit has an E configuration. In this ...
3a,4,10,10b-tetrahydro-2H-furo[2,3-a]carbazol-5(3H)-one

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2007)

The asymmetric unit of the title compound, C14H13NO2, contains two independent molecules. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, the dihedral angles being 0.48 (17) and 1.26 (17)degrees. ...
A combined crystallographic, spectroscopic, antimicrobial, and computational study of novel dipicolinate copper(II) complex with 2-(2-hydroxyethyl)pyridine

Tamer, Ömer; Bahtiyar Sariboga; Ibrahim Ucar (SPRINGER/PLENUM PUBLISHERS, 2012)

Novel dipicolinate complex of copper(II) ion, [Cu(hepy)(dpc)H2O] [hepy: 2-(2-hydroxyethyl)pyridine; dpc: dipicolinate or pyridine-2,6-dicarboxylate], was prepared and fully characterized by single crystal X-ray structure ...
Ab initio HF and DFT calculations on an organic non-linear optical material

Avcı, Davut; Başoğlu, Adil; Atalay, Yusuf (SPRINGER/PLENUM PUBLISHERS, 2010)

The molecular geometric optimization, vibrational frequencies, and gauge-including atomic orbital (GIAO) (1)H and (13)C chemical shift values of 3-[(1E)-N-ethylethanimidoyl]-4-hydroxy-6-methyl-2H-pyran-2-one have been ...
Bias field induced impedance relaxation of TlGaSe2 semiconducting layered crystal at room temperature

Şentürk, Erdoğan (WILEY-V C H VERLAG GMBH, 2007)

Complex Impedance Spectroscopy has been employed for the study of absorption kinetics at TIGaSe2 layered crystal under Bias voltage at room temperature. Two relaxations mechanisms have been observed. The crystal has "slow" ...
Bis(4-fluorobenzoato-kappa O-2,O ')bis-(nicotinamide-kappa N-1)zinc(II)monohydrate

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2008)

The title compound, [Zn(C7H4FO2)(2)(C6H6N2O)(2)]center dot H2O, is a monomeric complex. It contains two 4-fluorobenzoate and two nicotinamide ligands and one uncoordinated water molecule. The 4-fluorobenzoates act as ...
Bis(mu-3-hydroxybenzoato)-kappa O-3(1),O-1 ':O-1;kappa O-3(1):O-1,O-1 '-bis[(3-hydroxybenzoato-kappa O-2,O ')(isonicotinamide-kappa N-1)cadmium] tetrahydrate

Delibaş, Nagihan (WILEY-BLACKWELL, 2012)

In the title centrosymmetric binuclear Cd-II compound, [Cd-2(C7H5O3)(4)(C6H6N2O)(2)]center dot 4H(2)O, the six-coordinated Cd-II atom is chelated by the carboxylate groups of the two 3-hydroxybenzoate (HB) anions; the two ...
Crystal structure and Hirshfeld surface analysis of (E)-2-(2,4,6-trimethylbenzylidene)-3,4-dihydronaphthalen-1(2H)-one

Cemile Baydere; Merve Tasci; Necmi Dege; Mustafa Arslan; Atalay, Yusuf; Irina A. Golenya (INT UNION CRYSTALLOGRAPHY, 2019)

A novel chalcone, C20H20O, derived from benzylidenetetralone, was synthesized via Claissen-Schmidt condensation between tetralone and 2,4,6-trimethyl-benzaldehyde. In the crystal, molecules are linked by C-H center dot ...
Diaquabis(4-bromobenzoato-kappa O-2,O ')-zinc(II)

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2008)

The monomeric title Zn-II complex, [Zn(C7H4BrO2)(2)(H2O)(2)], contains two 4-bromobenzoate ( BB) ligands and two coordinated water molecules around a Zn-II atom on a twofold rotation axis. The BB ions act as bidentate ...
Diaquabis(4-bromobenzoato-kO)-bis(nicotinamide-kappa N-1)cobalt(II)

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2007)

The title complex, [Co(C7H4BrO2)(2)(C6H6N2O)(2)(H2O)(2)], is monomeric and centrosymmetric, and contains two water molecules, two 4-bromobenzoate (BB) anions and two nicotinamide (NA) ligands, all acting as monodentate ...
Diaquabis(4-chlorobenzoato-kappa O)bis(N,N-diethylnicotinamide-kappa N-1)manganese(II)

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2008)

The title compound, [Mn(C7H4ClO2)(2)(C10H14N2O)(2)(H2O)(2)], is a monomeric complex with the Mn-II atom lying on an inversion center. It contains two 4-chlorobenzoate and two diethylnicotinamide ligands and two water ...
Diaquabis(N,N-diethylnicotinamide-kappa N)-bis(4-fluorobenzoato-kappa O)zinc(II)

Delibaş, Nagihan (INT UNION CRYSTALLOGRAPHY, 2007)

The title compound, [Co(C7H4FO2)2(C6H6N2O)2(H2O)2], is a three-dimensional hydrogen-bonded supramolecular complex. The CoII ion resides on a centre of symmetry and is in an octahedral coordination environment comprising ...
Dielectric characteristics of Ce3+ doped Sr0.61Ba0.39Nb2O6 with Cole-Cole plots technique

Şentürk, Erdoğan (WILEY-V C H VERLAG GMBH, 2004)

In this paper, we have investigated two-relaxator mechanism and dielectric characteristics of Ce3+ doped Sr0.61Ba0.39Nb2O6 with dielectric spectroscopy measurements. The crystal undergoes a ferroelectric phase transition ...
Dielectric properties of thallium gallium diselenide layered crystal in the incommensurate phase

Şentürk, Erdoğan (WILEY-V C H VERLAG GMBH, 2005)

The dielectric measurements of the layered crystal were studied in temperature range of successive phase transitions. The measurements revealed that the phase transition occurred in 242 K is an incommensurate phase transition. ...
Dielectric relaxation in ferroelectric TlInS2 layered crystals within metastable chaotic state

Şentürk, Erdoğan (WILEY-V C H VERLAG GMBH, 2007)

The results of investigations low frequency dielectric relaxation in layered ferroelectric TlInS2 crystals are presented. The measurements were performed in the temperature range of 180-230 K and in the frequency range of ...
Effects of different GIAO and CSGT models and basis sets on 2-aryl-1,3,4-oxadiazole derivatives

Avcı, Davut; Atalay, Yusuf (SPRINGER/PLENUM PUBLISHERS, 2009)

The direct molecular structure implementations of the gage-including atomic orbital (GIAO), individual gages for atoms in molecules (IGAIM) and continuous set of gage transformations (CSGT) methods for calculating nuclear ...
Incommensurate phase properties of TlGaSe2 layered crystals

Şentürk, Erdoğan (WILEY-V C H VERLAG GMBH, 2005)

The frequency and time dependence of the ac conductivity were measured within incommensurate phase in the frequency range 10(1)-10(7) Hz and analyzed. The electrical conductivity decreases with decreasing temperature, then ...