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The syntheses of new ball-type dinuclear Si(IV)(CH(3)COO)(2) and Ti(IV)O phthalocyanines and two different mononuclear Zn(II) and Ti(IV)O phthalocyanines containing four 1,1'-binaphthyl-8,8'-diol substituents on the peripheral positions are described. The structures of these compounds were characterized using the elemental analyzes, UV-Vis, FT-IR, (1)H NMR and mass spectroscopies. The Φ(F) values are 0.14, 0.10, 0.04, 0.02, 0.07; Φ(T) values are 0.69, 0.71, 0.85, 0.33, 0.71 for 7-11, respectively. All complexes showed very long triplet lifetimes with τ(T) 7510, 3190, 2880, 2370, 9470 μs for 7-11 in DMSO, respectively. 相似文献
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Mevlüt Bayrakci ?eref Ertul Mustafa Yilmaz 《Journal of inclusion phenomena and macrocyclic chemistry》2012,74(1-4):293-303
This study presents the selective chloromethylation of calix[4](aza)crown ethers 2a–c, using chloromethyl n-octyl ether and SnCl4 in chloroform at room temperature in good yield for the first time. Chloromethylated products 2a–c are used as key intermediates to synthesize new water-soluble p-phosphonato calix[4](aza)crown ethers 5a–c. Liquid–liquid phase extraction and phase solubility studies with poor water soluble drug molecules such as nifedipine, niclosamide and furosemide are performed to evaluate their binding properties. Among the studied drugs, furosemide was the most effectively dissolved drug by p-phosphonato calix[4](aza)crown ethers 5a–c in water. 相似文献
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New macrocyclic polyethers, 2,3,5,6-bis-[5′(5′)-chlorobenzo]-1,7,10-trioxacyclododeca-2,5-diene (I), 2,3,5,6-bis-[5′(5′)-chlorobenzo]-1,7,10,13-tetra oxacyclo pentadeca-2,5-diene (II), and 2,3,5,6-bis-[5′(5′)-chlorobenzo]-1,7,10,13,16-penta oxa cyclo octadeca-2,5-dien (III), and macrocylic lactones 2,3,5,6-bis-[5′(5′)-chlorobenzo]-1,7,10,13-tetraoxacyclopentadeca-2,5-diene-8,15-dione (IV) and 2,3,5,6-bis[5′(5′)-chlorobenzo]-1,7,10,13,16-pentaoxacyclooctadeca-2,5-diene-8,18-dione (V) were synthesized. Complexes of ligands III and V with metal cations were prepared. Furthermore, their metal-picrate extraction with some metal salts was attempted. Structures
of the ligands and complexes were confirmed using spectroscopic techniques. 相似文献
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Mevlüt Tunç 《Mediterranean Journal of Mathematics》2014,11(4):1047-1059
In this study, the author establishes some inequalities of Hadamard-like based on convex and s-convexity in the second sense. Some applications to special means of positive real numbers are also given. 相似文献
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Mevlüt Bayrakc? ?eref Ertul Mustafa Y?lmaz 《Journal of inclusion phenomena and macrocyclic chemistry》2012,74(1-4):415-423
This article reports the solubilization of the practically water insoluble drug molecules such as nifedipine, niclosamide and furosemide by guest:host inclusion complexation with p-phosphonates calix[n]arenes as drug soluble agent. This complexation studies were carried out by using the phase solubility technique. From the obtained results, it was observed that the solubility of drug molecules was significantly increased in the presence of calix[n]arene host molecules. The increase in solubility of drugs by the calix[n]arene was most probably due to inclusion complexation between drug molecules and cavities of the calixarene skeleton similar to drug:cyclodextrin complexes. 相似文献
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Fadime Güllü Mevlüt Bayrakcı Ahmed Nuri Kursunlu Şengül Yiğiter Şeref Ertul 《Journal of inclusion phenomena and macrocyclic chemistry》2014,80(3-4):303-312
This study is the first report on the design, synthesis and photophysical properties of three new macrocyclic receptors based receptors containing two amide bridges. Their binding properties towards trivalent lanthanide ions such as La3+, Gd3+, Tb3+, Dy3+, Er3+ and Yb3+ were investigated by using spectroscopic techniques. With respect to emission intensity changes upon trivalent lanthanide ion complexation, macrocyclic receptors based lactam ionophores showed higher selectivity towards Yb3+ and/or Er3+ ion over other ions. Presence of proximal two amide groups in macrocyclic lactam receptors having different cavity size were observed to play an important role in exhibiting its lanthanide ion binding. 相似文献