Fen Edebiyat Fakültesi / Faculty of Letters and Sciences
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Publication Metadata only Solid-state vibrational spectroscopy: Part 11. An infrared and raman vibrational spectroscopic study of metal(II) halide aniline complexes(Elsevier, 1983) Davies, J. Eric D.; AKYÜZ, SEVİM; 10127Infrared (4000−200 cm−1) and Raman (3500−50 cm−1) spectra are reported for metal(II) halide aniline complexes of the following stoichiometries: (MX2an2) (M Co, Ni or Hg, X Cl; M Mn, X Cl or Br; M Zn or Cd, X Cl, Br or I); (MX2an3) (M Mn, X Cl or Br; M Ni, X Cl); (CdCl2an) and an assignment is proposed for all the observed bands. Low-temperature (83 K) IR spectra are also reported and it is noted that whilst the aniline ring and CH mode values are virtually insensitive to temperature, the NH2 rocking and metal-ligand stretching mode values increase with decreasing temperature, whilst the NH2 stretching mode values decrease with decreasing temperature.Publication Metadata only Mutagenic efficiency of gamma irradiation in two soybean varieties(1984) Özbek, N.; ATAK, ÇİMEN; 6653Efficiency of gamma irradiation on certain characteristics such as seedling height and dry weight of Amsoy-71 and Calland soybean varieties has been measured considering to use this mutagen effectively in mutation breeding. A greenhouse experiment was conducted using different doses of gamma irradiation (0 to 70 krad) and two soybean varieties. All treatments were carried out in 5 replications and consisted of 50 seeds. Seeds were sown in pots and plants were grown under climatically controlled conditions. Seedling height measurements were made 14 days after the emergence when the first leaf has stopped its growth and dry weights were measured after 5 weeks of growth. ED50 (Effective Dose) values were also calculated in order to find out the suitable irradiation doses to be used in mutation induction for both varieties. The results showed clearly that seedling height and dry weight were affected by γ-irradiation and, as compared with the control, both of them were reduced as the dose was increased with some differences between the varieties. The soybean varieties also showed differences in terms of ED50 (Effective Dose) values and this value was found for Amsoy-71 as 16 krad, whereas for Calland as 20 krad. These results were in agreement with the literature values.Publication Metadata only Laser microprobe mass analysis (LAMMA) of pyridine adsorbed on some clay minerals from Turkey(Kluwer Academic Publishers, 1985-06) Waele, J. K.; Adams, F. C.; AKYÜZ, ZEKİ TANIL; AKYÜZ, SEVİM; 10127Using laser microproble mass analysis (LAMMA), it is possible to characterize the inorganic composition of clays and to study adsorption phenomena. Natural sepiolite, (Na-sepiolite), montmorillonite and saponite samples from Anatolia (Turkey) have been investigated. All the clays gave different fingerprint mass spectra which allowed a quick estimation of the relative amounts of exchangeable cations as well as the trace contaminants and the homogeneity of their distribution. The adsorption behaviour of these clays for pyridine was also studied and it appeared that pyridine molecules penetrated the inner layers, as well as being adsorbed on the external surface.Publication Metadata only An Infrared and Raman Spectroscopic Study of Metal II Di 2 Methylpyridine Tetracyanonickelate Complexes(Kluwer Academic Publishers, 1985-12) AKYÜZ, SEVİM; 10127The results of an infrared and Raman spectroscopic study are reported for two new metal 2-methylpyridine tetracyanonickelate complexes, M(C6H7N)2Ni(CN)4, M=Ni or Cd. Their structure consists of corrugated polymeric layers of {M-Ni(CN)4}∞ with 2-methylpyridine molecules bound directly to the metal (M). These complexes can act as host lattices in the formation of inclusion compounds with dioxane guest molecules.Publication Metadata only Çukurovada Yetiştirilen Amsoy-71 ve Calland Soya Çeşitlerinde Verim ve Yağ Oranının Nükleer Teknikle Geliştirilmesi(TÜBİTAK Yayınları, 1986) Özbek, N.; Atilla, S.; ATAK, ÇİMEN; 6653Publication Metadata only An Infrared and Raman Spectroscopic Study of Metal II Diquinoline Tetracyanickelate Complexes(1986) Yurdakul, Şenay; Davies, JED; AKYÜZ, SEVİM; 8372; 10127Publication Metadata only Çukurovada Yetiştirilen Calland ve Amsoy 71 Soya Çeşitlerinde Verim ve Miktarının Nükleer Teknikle Geliştirilmesi(1986) Özbek, N.; Atilla, S.; Sağel, Z.; ATAK, ÇİMEN; 6653Publication Metadata only Publication Metadata only An Infrared and Raman Spectroscopic Investigation of Copper II Tetracyanonickelate Complexes ofalpha beta and gamma picoline(Kluwer Academic Publishers, 1986-09) AKYÜZ, SEVİM; 10127Copper(II) dipicoline tetracyanonickelate complexes, CuL2Ni(CN)4 (L=α,β- orγ-picoline), have been prepared for the first time and their infrared and Raman spectra are reported. Their structure consists of polymeric layers of {Cu-Ni(CN)4}∞ with picoline molecules bound directly to the copper. It is proposed that the Cu-NC bonds are in two nonequivalent pairs in trans positions. Low temperature (83K) IR spectra have also been recorded and it is noted that the Ni(CN)4 group frequencies increase with decreasing temperature while the picoline frequencies are insensitive to temperature.Publication Metadata only An Infrared Spectroscopic Studies of 4 4 Bipridyl Metal II Tetracyanonickelate Complexes and Their Clathrates(1987) Sungur, Arzu; Davies, JED; AKYÜZ, SEVİM; 10127Publication Metadata only Infrared Spectral Investigations of Adsorption and Oxidation of N,N-Dimethylaniline by Sepiolite, Loughlinite and Diatomite(Springer, Dordrecht, 1987) AKYÜZ, SEVİM; AKYÜZ, ZEKİ TANIL; 10127The adsorption behaviour of sepiolite,loughlinite (Na-sepiolite) and diatomite for N,N-dimethylaniline (DMA) and its catalytically formed oxidation products are studied using IR spectroscopy. It is found that sepiolite and loughlinite adsorb DMA and then react with it more easily than diatomite. The adsorption capacity sequence of DMA for the minerals studied is sepioliteandgt;loughliniteandgt;diatomite.Publication Metadata only An infrared and raman spectroscopic study on some 3,5-lutidine metal(II) tetracyanonickelate complexes(Elsevier, 1987-01) Yurdakul, S.; Davies, J. Eric D.; AKYÜZ, SEVİM; 10127The results of an infrared and Raman spectroscopic study are presented for seven new metal(II) 3,5-lutidine tetracyanonickelate complexes, ML2Ni(CN)4 [where L = 3.5-di-methylpyridine or 3,5-lutidine; M = Mn, Fe, Co, Ni, Cu, Zn or Cd]. Their structure consists of polymeric layers of [MNi(CN)4]∞ with the 3,5-lutidine molecules bound directly to the metal (M). The copper complex has spectral features different from the other six compounds. The effective magnetic moments of the complexes are also given.Publication Metadata only Les Représentation Irréductibles Complexes Des Groupes SL 3 q PSL 3 q(1988) Güzel, Erhan; 2127Publication Metadata only A numerical method for calculation of the equivalence volume in potentiometric titrations(1988-02) Çağlar, Süleyman Hikmet; Bozdoğan, Abdürrezzak Emin; Çağal, Behiç; 114368; 11739Publication Metadata only An infrared and raman spectroscopic study of transition metal (II) halide quinoline complexes(Elsevier, 1988-05) Yurdakul, S.; Davies, J. Eric D.; AKYÜZ, SEVİM; 10127In this study infrared (4000-200 cm−1) and Raman (3500-50 cm−1) spectra are reported for the metal (II) halide quinoline complexes of the following stoichiometries: Mq2Cl2(MMn, Fe, Co, Ni, Cu, Zn or Hg; qquinoline) MqX2 (MCd or Hg; XCl, Br, I); Mq2I2(MCd or Zn) and Mq2Br2(MCo, Ni, Cu or Zn). The MqX2, Hgq2Cl2 and Cdq2I2 complexes have been prepared for the first time. The analysis of the vibrational spectra indicates that there are some structure-spectra correlations.Publication Metadata only Infrared and raman spectroscopic investigations of cadmium tetracyanonickelate complexes of aminopyridines(Elsevier, 1988-05) AKYÜZ, SEVİM; 10127The infrared and Raman spectra of three new complexes of the formula CdL2Ni(CN)4 {L = 2-aminopyridine or 2-amino-4-methylpyridine} and Cd(L) (NH3)-Ni(CN)4 {L = 2-amino-3-methylpyridine} are reported. It is concluded that the ring nitrogen and not the amino nitrogen is involved in complex formation. Vibrational assignments for all the bands observed are proposed. The complexes are shown to have a structure consisting of two dimensional polymeric layers formed with Ni(CN)4 ions bridged by CdL2 {L = 2-aminopy or 2-amino-4-methylpy} or Cd(NH3)(L) {L = 2-amino-3-methylpy} cations. Several modes of coordinated aminopyridines have upward wavenumber shifts in comparison to those of the free molecules. These are thought to be due to the coupling of the internal modes of aminopyridines with the MN vibrations.Publication Metadata only Radiation Induced Mutations for Yield and Oil Content in Soybean(1990) Özbek, N.; Atilla, S.; Sağel, Z.; ATAK, ÇİMEN; 6653Publication Metadata only Vibrational spectroscopic studies of three dimensional host lattices formed by pyrazine bridges between tetracyanonickelate layers(Kluwer Academic Publishers, 1990-12) Davies, J. Eric D.; AKYÜZ, SEVİM; AKYÜZ, ZEKİ TANIL; 10127Three dimensional host lattices have been developed by forming bridges with bidentate pyrazine molecules between adjacent tetracyanonickelate polymeric layers of Ni(II) or Cd(II). The Fourier-transform IR and Raman spectra (4000-200 cm−1) of the compounds with the general formula M(pyz)Ni(CN)4, (where M = Ni or Cd) are reported. These host lattices can include benzene molecules but it is found that aniline molecules cannot be included in these structures. They, however, form complexes with the formula M(an)2Ni(CN)4, by replacing pyrazine ligands. A monodentate pyrazine complex of Cd(II) with the formula Cd(pyz)2Ni(CN)4 has also been prepared.Publication Metadata only Ruh Adam Romanı Üzerine Bir İnceleme(1991) Türk, Vahit; 9466Publication Embargo Sur le Groupe Des Unités De ZD4(1991) Güzel, Erhan; 2127En réduisant les conditions déterminées par Miiies ["] on obtient une caractérisation de V (ZZ)4). Cette caractérisation est utilisée pour démontrer que Z>4 a un complément normal torsion-libre dans V(ZiD4).