نتایج جستجو برای: tmu 16 nh2

تعداد نتایج: 341266  

Nowadays metal-organic frameworks with multiple luminescent centers are very fascinating as multifunctional luminescent material because of their luminescence properties, which could be systematically tuned by deliberate use of organic ligands and metal ions. In this research, we explored a microporous mixed-ligand MOF for highly selective and sensitive detection of metal ions. A two-fold inter...

Journal: Nanochemistry Research 2018

Dyes are the most abundant hazardous components existing in the environment because of their extensive use in industries. So, in the present study, two isoreticular Zn(II)-MOFs, TMU-16 and TMU-16-NH2, were used for the adsorptive removal of harmful cationic dyes from aquatic medium. In order ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم پایه 1392

در این تحقیق جاذب مزوپروس سیلیکاتی sba-16 به منظور یون کروم سنتز شده است. سپس این جاذب با گروه آمینی (aptes) و با روش پوست – گرافت عامل دار شده است جاذبهای سنتز شدهsba-16 وnh2-sba-16 به ترتیب دارای سطح ویژه 618 و 790 متر مربع بر گرم، حجم حفره 26/1 و 5156/0 سانتیمتر مکعب بر گرم و شعاع پراکندگی 05/4 و 74/2 نانومتر می باشند. نتایج نشان میدهدکه ph، زمان تماس، غلظت جاذب و غلظت یون فلزی بهینه برای جا...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2001
Y Inada N Hotta H Kuwabara S Funahashi

The ligand substitution reaction of [Co(an)6]2+ (an = acetonitrile) with 1,1,3,3-tetramethylurea (TMU) in the noncoordinating solvent, nitromethane, was spectrophotometrically investigated by titration. The observed spectral changes were analyzed using a model with the four steps of ligand substitution. The component complexes involved in the substitution were found to be 6-coordinate [Co(an)6]...

Journal: :Chemistry and physics of lipids 2002
Ying Feng Zhi Wu Yu Peter J Quinn

The phase behavior of dioleoylphosphatidylethanolamine in aqueous solutions of urea, N,N'-dimethylurea (DMU), and N,N,N',N'-tetramethylurea (TMU) has been characterized by synchrotron X-ray diffraction and differential scanning calorimetry. All three solutes stabilize the lamellar liquid-crystalline phase at the expense of lamellar-gel phase and inverted hexagonal phase of the phospholipid when...

2007
CHRISTIAN S. JENSEN DAN LIN BENG CHIN OOI

The Bx-tree [1] is a query and update efficient B+-tree11 based index structure for moving objects which are rep12 resented as linear functions. The Bx-tree uses a lineariza13 tion technique to exploit the volatility of the data values 14 being indexed i. e., moving-object locations. Specifically, 15 data values are first partitioned according to their update 16 time and then linearized within ...

2012
Hannelore Jäckel

Dedicated to Professor Joachim Knabe on the occasion o f his 65th birthday Z. Naturforsch. 41b, 1461 — 1470 (1986); received July 14, 1986 Formation Constants of Molecular Complexes, Face-to-Face Complexes, Tetramethyluric Acid Complexes, A renes, ‘H NMR Spectra The complexation of tetram ethyluric acid (TM U) with the donors (D) benzene (B), biphenyl (BP), naphthalene (N), and phenanthrene (P)...

2017
Usman Iqbal Chia-Hui Wang Suleman Atique Nai-Wen Kuo

Taipei Medical University (TMU) healthcare system has a very significant role in the development and promotion of healthcare services across Taiwan, serving the nation since its inception in 1960, and we believe it can play an important role in health security as well. Currently, TMU has 10 colleges dealing with various fields of healthcare sciences, catering to more than 6,000 students—includi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1393

در این کار تحقیقاتی 11 چارچوب فلز-آلی (mofs) جدید بر پایه لیگاند اکسیژن دهنده دی کربوکسیلاتی 4و?4- اکسی بیس بنزوئیک اسید (oba) و استفاده از لیگاندهای نیتروژن دهنده خطی به عنوان پل سنتز شدند. هم چنین دو پلیمر کوئوردیناسیونی هم ساختار از فلزات روی(ii) و کادمیم(ii) به دست آمد. در ادامه mof های سنتزی، با استفاده از روش های سونوشیمی و مدولاتور در ابعاد میکرو و نانو نیز تهیه شدند. این ترکیبات با استف...

Journal: :Journal of mass spectrometry : JMS 2006
Eduardo C Meurer Marcos N Eberlin

We have already shown that the in-vacuum gas-phase Meerwein reaction of (thio)acylium ions is general in nature and useful for class-selective screening of cyclic (thio)epoxides. Herein we report that this gas-phase reaction can also be performed efficiently at atmospheric pressure under both electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) conditions. This alte...

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