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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Inorganic Chemistry Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Schiff base ligand,N3O2S donor,Unsymmetrical ligand,Thioether ligand,2-Aminoethanethiol
- چکیده:
- چکیده انگلیسی: A new unsymmetric thioether diamine N - ( 2 - ( 2 - aminophenylthio) ethyl) benzene - 1 , 2 - diamine was prepared through the nucleophilic substitution of cysteaminium chloride with 1 - chloro - 2 - nitrobenzene and then the nitro groups of prepared compuond converted to the amine by zinc powder and ammonium chloride. Then, unsymmetric Schiff bass ligand 2 - ((( 2 - (( 2 - (( 2 - (( 2 - hydroxybenzylidene) amino)phenyl) amino) ethyl) thio) phenyl )imino) methyl )phenol [H2L] was synthesized via [2 + 1] condensation of 2-hydroxybenzaldehyde with this unsymmetric thioether diamine and the corresponding Schiff base complexes of this ligand were prepared by adding metal salts of Zn(II), Cu(II), Ni(II) and Mn(II). The thioether diamine, ligand and unsymmetric Schiff base complexes are characterized by FT - IR, UV - Vis, 1H NMR, 13C NMR spectroscopy, molar conductivity, microanalysis and mass spectrometry
- انتشار مقاله: 15-05-1396
- نویسندگان: Ahmad Ali Dehghani-Firouzabadi,Seyed Hossein Mirmohammadi
- مشاهده
- جایگاه : پژوهشی
- مجله: Inorganic Chemistry Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Schiff base complex,Zn(II) complex,Pentadentate ligand,Binuclear complex,N2O2S donor
- چکیده:
- چکیده انگلیسی: The reactions of 1 - chloro - 2 - nitro benzene with 2 - Amino thio phenol yield the 2 - ( ( nitro phenyl ) thio ) aniline and then 2 , 2' - thio dianiline of this compound was prepared . Also the symmetrical potentially pentadentate N 2 O 2 S Schiff base ligand 2 , 2' - ( ( ( thio bis (1 , 2 - phenylene ) ) bis ( azanilidene ) ) bis ( methenilidene ) ) diphenol ( H 2 L ) obtain by added salicylaldehyde . These compound have been characterized by FT - IR , 1 H NMR and Mass Spectrometry . Bi - nuclear Zn ( II ) complex of this ligand was prepared and structurally characterized by X - ray crystallography . The coordination geometry around Zn ( II ) is intermediate between trigonal bipyramidal and square pyramidal , τ = 0.54.
- انتشار مقاله: 24-08-1395
- نویسندگان: Ahmad Ali Dehghani-Firouzabadi,Tahereh Alizadeh
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Otorhinolaryngology
- نوع مقاله: Journal Article
- کلمات کلیدی: Interleukins,Pediatrics,Inflammatory cytokines,Otitis media with effusion
- چکیده:
- چکیده انگلیسی: Introduction:
To evaluate the role of allergic-type and infectious-type cytokines in children with chronic otitis media with effusion (OME)
Materials and Methods:
We investigated serum levels of interleukins (IL)-4, IL-5, and IL-13, along with interferon-gamma (IFN-γ) and tumor necrosis factor-alpha (TNF-α), by enzyme-linked immunosorbent assay (ELISA) in 35 children with OME and 28 healthy controls.
Results:
Children with OME had significantly higher levels of IL-5 in comparison with the control group, ranging from 1 pg/ml in cases to 0.04 pg/ml in controls (P=0.009). However, after adjusting for confounding variables, there was no significant difference in serum levels of IL-13, IL-4, IFN-γ, or TNF-α between the two groups (P=0.287, P=0.627, P=0.793, and P=0.217, respectively)
Conclusions:
The findings of this study suggest that in comparison with the control group, serum IL-5 levels were elevated in OME cases.- انتشار مقاله: 25-11-1394
- نویسندگان: Saba Arshi,Fatemeh Dehghani-Firouzabadi,Babak Ghalehbaghi,Ali Dehghani-Firouzabadi,Farhad Jalali,Mehdi Shekarabi,Reza Sirous,Mohammad Dehghani-Firouzabadi
- مشاهده
- جایگاه : پژوهشی
- مجله: Inorganic Chemistry Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Schiff base ligand,N3O2S donor,Unsymmetrical ligand,Thioether ligand,2-Aminoethanethiol
- چکیده:
- چکیده انگلیسی: A new unsymmetric thioether diamine N - ( 2 - ( 2 - aminophenylthio) ethyl) benzene - 1 , 2 - diamine was prepared through the nucleophilic substitution of cysteaminium chloride with 1 - chloro - 2 - nitrobenzene and then the nitro groups of prepared compuond converted to the amine by zinc powder and ammonium chloride. Then, unsymmetric Schiff bass ligand 2 - ((( 2 - (( 2 - (( 2 - (( 2 - hydroxybenzylidene) amino)phenyl) amino) ethyl) thio) phenyl )imino) methyl )phenol [H2L] was synthesized via [2 + 1] condensation of 2-hydroxybenzaldehyde with this unsymmetric thioether diamine and the corresponding Schiff base complexes of this ligand were prepared by adding metal salts of Zn(II), Cu(II), Ni(II) and Mn(II). The thioether diamine, ligand and unsymmetric Schiff base complexes are characterized by FT - IR, UV - Vis, 1H NMR, 13C NMR spectroscopy, molar conductivity, microanalysis and mass spectrometry
- انتشار مقاله: 15-05-1396
- نویسندگان: Ahmad Ali Dehghani-Firouzabadi,Seyed Hossein Mirmohammadi
- مشاهده
- جایگاه : پژوهشی
- مجله: Inorganic Chemistry Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Schiff base complex,Zn(II) complex,Pentadentate ligand,Binuclear complex,N2O2S donor
- چکیده:
- چکیده انگلیسی: The reactions of 1 - chloro - 2 - nitro benzene with 2 - Amino thio phenol yield the 2 - ( ( nitro phenyl ) thio ) aniline and then 2 , 2' - thio dianiline of this compound was prepared . Also the symmetrical potentially pentadentate N 2 O 2 S Schiff base ligand 2 , 2' - ( ( ( thio bis (1 , 2 - phenylene ) ) bis ( azanilidene ) ) bis ( methenilidene ) ) diphenol ( H 2 L ) obtain by added salicylaldehyde . These compound have been characterized by FT - IR , 1 H NMR and Mass Spectrometry . Bi - nuclear Zn ( II ) complex of this ligand was prepared and structurally characterized by X - ray crystallography . The coordination geometry around Zn ( II ) is intermediate between trigonal bipyramidal and square pyramidal , τ = 0.54.
- انتشار مقاله: 24-08-1395
- نویسندگان: Ahmad Ali Dehghani-Firouzabadi,Tahereh Alizadeh
- مشاهده