Browsing by Author "Celik, Ismail"
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1,4-Bis(methylsulfanyl)naphthalene
Celik, Ismail; Akkurt, Mehmet; Senocak, Ayseguel; Cakmak, Osman; Torre-Fernandez, Laura; Garcia-Granda, Santiago (WILEY-BLACKWELL, 2009)The molecule of the title compound, C(12)H(12)S(2), is close to planar, with the methyl C atoms deviating by 0.019 (1) and 0.221 (2) angstrom from the naphthalene mean plane. In the crystal structure, the shortest S center ... -
1-Benzyl-3-[(trimethylsilyl)methyl]benzimidazolium chloride monohydrate
Akkurt, Mehmet; Celik, Ismail; Kucukbay, Hasan; Sireci, Nihat; Buyukgungor, Orhan (WILEY-BLACKWELL, 2010)The title compound, C(18)H(23)N(2)Si(+)center dot Cl(-)center dot H(2)O, was synthesized from 1-[(trimethylsilyl)methyl]benzimidazole and benzyl chloride in dimethylformamide. The benzimidazole ring system is approximately ... -
2-[2-(2,6-Dichloroanilino)phenyl]-N '-(4-propylcyclohexylidene)acetohydrazide
Akkurt, Mehmet; Nassozi, Mebble; Capan, Gueltaze; Kocabalkanli, Ayse; Celik, Ismail; Buyukgungor, Orhan (WILEY-BLACKWELL, 2010)The asymmetric unit of the title compound, C(23)H(27)Cl(2)N(3)O, contains two crystallographically independent molecules in which the dihedral angles between the benzene rings are 70.1 (3) and 63.8 (3)degrees. In each ... -
3,6,8-Tribromoquinoline
Celik, Ismail; Akkurt, Mehmet; Okten, Salih; Cakmak, Osman; Garcia-Granda, Santiago (WILEY-BLACKWELL, 2010)The title molecule, C(9)H(4)Br(3)N, is almost planar, the maximum deviation being 0.110 (1) angstrom. The crystal structure is stabilized by weak aromatic pi-pi interactions [centroid-centroid distance = 3.802 (4) angstrom] ... -
4-(9-Anthryl)-1-(3-bromophenyl)spiro[azetidine-3,9 '-xanthen]-2-one
Celik, Ismail; Akkurt, Mehmet; Jarrahpour, Aliasghar; Ebrahimi, Edris; Buyukgungor, Orhan (WILEY-BLACKWELL, 2009)In the title molecule, C35H22BrNO2, the four-membered ring of the beta-lactam unit is nearly planar [maximum deviation = 0.003 (3) angstrom] and makes dihedral angles of 87.07 (15), 59.80 (16) and 20.81 (19)degrees, ... -
4-(9-Anthryl)-1-phenylspiro[azetidine-3,9 '-xanthen]-2-one
Celik, Ismail; Akkurt, Mehmet; Jarrahpour, Aliasghar; Ebrahimi, Edris; Buyukgungor, Orhan (INT UNION CRYSTALLOGRAPHY, 2009)The beta-lactam ring of the title compound, C35H23NO2, is nearly planar with a maximum deviation of 0.003 (3) angstrom from the mean plane. It makes dihedral angles of 17.4 (2), 85.22 (17) and 65.39 (16)degrees, respectively, ... -
4-(Methylamino)benzoic acid
Celik, Ismail; Akkurt, Mehmet; Necefoglu, Hacali; Aybirdi, Oezguer; Garcia-Granda, Santiago (WILEY-BLACKWELL, 2009)The asymmetric unit of the title compound, C8H9NO2, contains three crystallographically independent molecules, which are essentially planar, the carboxyl O atoms deviating by 0.091 (3), 0.101 (2) and 0.164 (3) angstrom ... -
4-{3-[Hydroxy(phenyl)methyl]-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-4-yl}benzenesulfonamide
Akkurt, Mehmet; Celik, Ismail; Cihan, Goekce; Capan, Gueltaze; Buyukgungor, Orhan (WILEY-BLACKWELL, 2010)In the title compound, C(15)H(14)N(4)O(3)S(2), the hydroxy group is disordered over two positions with occupancies of 0.619 (5) and 0.381 (5). The benzene ring attached to the heterocycle makes a dihedral angle of 86.92 ... -
5-Fluoro-N '-[(E)-4-methoxybenzylidene]-3-phenyl-1H-indole-2-carbohydrazide
Akkurt, Mehmet; Celik, Ismail; Cihan, Goekce; Capan, Gueltaze; Buyukgungor, Orhan (WILEY-BLACKWELL, 2010)In the title molecule, C(23)H(18)FN(3)O(2), the mean plane of the indole system forms dihedral angles of 44.23 (8) and 14.54 (7)degrees, respectively, with the phenyl and benzene rings. In the crystal, intermolecular N-H ... -
6,8-Dibromoquinoline
Celik, Ismail; Akkurt, Mehmet; Cakmak, Osman; Okten, Salih; Garcia-Granda, Santiago (WILEY-BLACKWELL, 2010)The title molecule, C9H5Br2N, is almost planar, with an r.m.s. deviation of 0.027 angstrom. The dihedral angle between the aromatic rings is 1.5 (3)degrees. In the crystal, pi-pi stacking interactions are present between ... -
Clinical Features and Prognostic Factors of Hodgkin's Lymphoma: A Single Center Experience
Kilickap, Saadettin; Barista, Ibrahim; Ulger, Sukran; Celik, Ismail; Selek, Ugur; Yildiz, Ferah; Kars, Ayse; Ozisik, Yavuz; Tekuzman, Gulten (AVES YAYINCILIK, 2013)Background: Hodgkin's lymphoma (HL) is a B cell lymphoma characterized by the presence of Reed-Sternberg cells. HL comprises 1% of all cancer cases and 14% of all lymphoma cases. Aims: We designed a retrospective study to ... -
Crystal structure and computational study of 3,4-dihydroxy-3-hydroxymethyl-9-methyl-6-methylidene-3a, 4,5,6,6a, 9,9a, 9b-octahydroazuleno[4,5-b]furan-2,8(3H,7H)-dione
Celik, Ismail; Akkurt, Mehmet; Aksit, Huseyin; Erenler, Ramazan; Garcia-Granda, Santiago (INT UNION CRYSTALLOGRAPHY, 2015)In the molecule of title compound, C15H20O6, also known as cynarinin A, the cyclopentane ring having twist conformation and a gamma-lactone ring assuming an envelope conformation are trans-and cis-fused, respectively, to ... -
Crystal structure and Hirshfeld surface analysis of 2-oxo-13-epi-manoyl oxide isolated from Sideritis perfoliata
Celik, Ismail; Atioglu, Zeliha; Aksit, Huseyin; Demirtas, Ibrahim; Erenler, Ramazan; Akkurt, Mehmet (INT UNION CRYSTALLOGRAPHY, 2018)The title compound, C20H32O2 (systematic name: 3-ethenyl-3,4a,7,7,10a-pentamethyldodecahydro-9H-benzo[f]chromen-9-one), was isolated from Sideritis perfoliata. In the crystal, molecules pack in helical supramolecular chains ... -
Crystal structure of 2-[(3S, 4S)-4-(anthracen-9-yl)-1-(4-methoxyphenyl)-2-oxoazetidin-3-yl]-2-aza-2H-phenalene-1,3-dione unknown solvate
Celik, Ismail; Akkurt, Mehmet; Jarrahpour, Aliasghar; Rad, Javad Ameri; Celik, Omer (INT UNION CRYSTALLOGRAPHY, 2015)The central beta-lactam ring of the title compound, C36H24N2O4, is almost planar (r.m.s. deviation = 0.003 angstrom) and makes dihedral angles of 17.17 (19), 89.76 (17) and 78.44 (17)degrees with the benzene ring, the ... -
Crystal structure of 2-[4-(4-chlorophenyl)-1-(4-methoxyphenyl)-2-oxoazetidin-3-yl]benzo[de]isoquinoline-1,3-dione dimethyl sulfoxide monosolvate
Celik, Ismail; Akkurt, Mehmet; Jarrahpour, Aliasghar; Rad, Javad Ameri; Celik, Omer (INT UNION CRYSTALLOGRAPHY, 2015)In the title solvated compound, C28H19N2O4 center dot C2H6OS, the central beta-lactam ring is almost planar (r.m.s. deviation = 0.002 angstrom). It makes dihedral angles of 1.92 (11), 83.23 (12) and 74.90 (10)degrees with ... -
Crystal structure of 3,4a, 7,7,10a-pentamethyl-3-vinyldodecahydro-1H-benzo[f]chromen-9-ol isolated from Sideritis perfoliata
Celik, Ismail; Ersanli, Cem Cuneyt; Koseoglu, Rahmi; Aksit, Huseyin; Erenler, Ramazan; Demirtas, Ibrahim; Akkurt, Mehmet (INT UNION CRYSTALLOGRAPHY, 2016)The asymmetric unit of the title compound, C20H34O2, contains two crystallographically independent molecules (1 and 2) with similar conformations. In both molecules, the cyclohexane rings adopt a chair conformation, while ... -
Crystal structure of racemic [(1R,2S,3R,4S,6S)-2,6-bis(furan-2-yl)-4-hydroxy-4-(thiophen-2-yl)cyclohexane-1,3-diyl]bis(thiophen-2-ylmethanone)
Celik, Ismail; Ersanli, Cem Cuneyt; Akkurt, Mehmet; Gezegen, Hayrettin; Koseoglu, Rahmi (INT UNION CRYSTALLOGRAPHY, 2016)In the title compound, C28H22O5S3, the central cyclohexane ring adopts a chair conformation. The atoms of the furan ring attached to the 6-position of the central cyclohexane ring are disordered over two sets of sites with ... -
FREQUENCY OF CANCER TYPES IN PATIENTS AGED 65 AND OLDER: RESULTS FROM CANCER REGISTRY DATABASE OF HACETTEPE UNIVERSITY HOSPITALS
Arslan, Cagatay; Kilickap, Saadettin; Dede, Didem Sener; Hayran, Kadir Mutlu; Erman, Mustafa; Celik, Ismail; Kutluk, Tezer (GUNES KITABEVI LTD STI, 2011)Introduction: Elderly population is increasing in our country as in all over the world. We aimed to investigate the frequency of the leading cancer types in patients aged 65 and older. Materials and Method: Data of cancer ... -
IS METHOTREXATE-INDUCED TESTICULAR DAMAGE PREVENTABLE USING NETTLE SEED EXTRACT: A HISTOPATHOLOGICAL, IMMUNOHISTOCHEMICAL, BIOCHEMICAL AND SPERMATOLOGICAL EXAMINATION
Uyar, Ahmet; Yaman, Turan; Dogan, Abdulahad; Uslu, Sema; Keles, Omer Faruk; Yener, Zabit; Celik, Ismail (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2018)In the study 32 Wistar albino rats were divided into four group as control (Group Control, n=8), methotrexate (Group MTX, n=8), MTX + UDS (Group MTX+UDS, n=8) and Urtica dioica seed extract (UDS) (Group UDS, n=8). After ...
