نتایج جستجو برای: phenylen diisothiocyanate
تعداد نتایج: 42 فیلتر نتایج به سال:
new two nano- sized schiff base complexes [m(l)], where l= 2, 2'-((1e, 1e')-(1, 2 phenylen bis (azanylylidene)) bis (methanylylidene)) bis (4-bromo phenolato) and m=cu or zn, (a, b complexes) were synthesized by ultrasonic irradiation. these complexes were characterized by elemental analysis, molar conductivity, ft-ir, fluorescence emission, 1h nmr, field emission scanning electron sp...
While it is well established that stroke and cerebral hypoperfusion are both significant risk factors for Alzheimer's disease, the molecular link between ischemia and amyloid precursor protein processing has only been recently established. Specifically, hypoxia significantly increases beta-site APP cleaving enzyme (BACE1) gene transcription through the over-expression of hypoxia inducible facto...
N,N'-bis (1-naphthylmethyl)-diaza-18-crown-6 (1) showed weak emissions, suggesting that photoinduced electron transfer (PET) from the amine group to the excited naphthalene occurs. The PET fluoroionophore (1) was found to display unique photophysical properties in the presence of a guest cation. Single crystals of the HNCS salt of 1 were grown from 1 and NH(4)SCN. The crystal structure of the H...
A new kind of polybenzoylthiourea polymer (PBTU) was synthesized through a polycondensation reaction between 3,5-diamino-1,2,4-triazole and tereftaloyl diisothiocyanate inpoly(ethyleneglycol)dimethylether (PEG) as the phase transfer catalyst. Obtained highly soluble in organic solvents including dimethyl formamide (DMF) dimethylsulfoxide (DMSO) contrast to insoluble nature similar benzoylthiour...
New two nano- sized Schiff base complexes [M(L)], where L= 2, 2'-((1E, 1E')-(1, 2 phenylen bis (azanylylidene)) bis (methanylylidene)) bis (4-bromo phenolato) and M=Cu or Zn, (a, b complexes) were synthesized by ultrasonic irradiation. These complexes were characterized by elemental analysis, molar conductivity, FT-IR, fluorescence emission, 1H NMR, field emission scanning electron spectroscopy...
یک کمپلکس باز شیف اورانیل جدید با فرمول [uo2(l)(dmf)] که در آن ( (azanylylidene)) bis (methanylylidene)) bis (4-bromo phenol ) l= 2, 2'-((1e, 1e')-(1, 2 phenylen bis می باشد از واکنش لیگاند h2l و نمک (ch3coo)2uo2·2h2o تهیه شد. ساختار شیمیایی کمپلکس به دست آمده توسط دستگاه های طیف سنجی مادون قرمز فوریر ، پروتون انمار ، طیف سنجی فرا بنفش-مریی ، لومینسانس و طیف سنجی بکمک اشعه ای...
A method for fabricating biomimetic surfaces from intact cell membranes is described. A monolayer of alkanethiol on gold is covered by a second layer derived from the components of erythrocyte membranes either by self-assembly or by Langmuir-Blodgett methods. The resulting asymmetric hybrid layer was characterized by ellipsometry, surface plasmon resonance (SPR), contact angle, capacitance, vol...
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