Search results

Development of the Synthesis of Chromium and Molybdenum – Amino acid Complexes: A Green Chemistry Approach Kun Sri Budiasih1,2*, Chairil Anwar2, Sri Juari Santosa3, Hilda Ismail4 1) Chemistry Education Dept, Yogyakarta State University, Yogyakarta,, Indonesia 2) 3) Chemistry Dept, Universitas Gadjah Mada,Yogyakarta, Indonesia 4)Faculty of Pharmacy, Universitas Gadjah Mada,Yogyakarta, Indonesia ks_budiasih@yahoo.co.uk;irilwar@yahoo.com:s.juari@yahoo.com;hld_ismail@yahoo.com Keywords: green chemistry, synthesis, Cr(III), Mo(V), complexes Abstract: Some concepts of green chemistry were applied on the Synthesis of Chromium(III) and Mo(V) complexes with amino acids.
Green chemistry concept approach suggest the safer solvent, less energy and shorter process in order to get the appropriate product to this aim.
A structural model with OH- bridge give a proposed molecular structure based on the previous reference [15].
References [1] E Ochiai, Bioinorganic Chemistry, John Willey & Sons, New York, p.235, 2008
,-Calogovic Synthesis and Crystal Structures of Two Novel Molybdenum (V) Complexes with Glycine and D,L-Valine., Acta Chim.

Industrial Electrocatalytic Oxidation - The Future of «Green Chemistry» I.Yu.
Introduction Selective oxidation of alcohols to carbonyl compounds or acids is a transformation of paramount importance in synthetic organic chemistry for the production of intermediates or target products of organic and pharmaceutical chemistry, for the production of odoriferous substances and polymeric materials [1].
But since, the effect of the addition of pyridine bases and other amines on the rate and selectivity of the indirect electrochemical conversion of alcohols of various structures into carbonyl compounds or functional derivatives of carboxylic acids was not systematically studied.
Pagliaro, Electrochemical Alcohol Oxidation Mediated by TEMPO like Nitroxyl Radicals, Chemistry Open. 6 (2017) 5–10
Kelly, Oxoammonium salt oxidations of alcohols in the presence of pyridine bases, Journal of organic chemistry, Vol. 79, 3 (2014) 1055-1067

The impact of enzymatic refining on wet-end chemistry and bleachability of pulp were studied.
The pulp wet-end chemistry properties play an important role in the paper production.
Second Refining and Determination of Wet-end Chemistry Properties.
Results and Discussion Effect of Enzymatic Refining on Wet-end Chemistry.
Yu: Chemistry and Industry of Forest Products, Vol. 22(2002) No.4, p.43.

Adsorption of Hydrogen Sulfide, Carbondioxide and Methane by Zeolite (Ferrierite; H-FER): Computational Chemistry Method Narisara Suthanyawatchai1, a and Usa Onthong1, b 1Computatoinal Chemistry Research Unit, Faculty of Science, Thaksin University, Patthalung, Thailand, 93110 as_narisara@hotmail.com, busa@tsu.ac.th Keywords: Zeolite, Computational Chemistry, Hydrogen sulfide Abstracts The adsorption of hydrogen sulfide (H2S), carbondioxide (CO2) and methane (CH4) on H-FER zeolite was investigated under computational chemistry using ONIOM (HF/6-31G (d,p):UFF) and ONIOM (B3LYP/6-31G (d,p):UFF) method.
Adsorption of H2S, CO2 and CH4 on H-FER zeolite structure size 5T The optimized structures of adsorption complexes of H2S, CO2 and CH4 molecules on the H-FER 5T zeolite clusters are illustrated in Figs. 1.
The optimized structures of the adsorption complexes of (A) H2S, (B) CO2 and (C) CH4 on H-FER zeolite structure size 5T.
The optimized structures of the adsorption complexes of (D) H2S, (E) CO2 and (F) CH4 on H-FER zeolite structure size 12T.
Rabo (Ed.), Zeolite Chemistry and Catalysis, ACS Monograph 171, American Chemical Society, Washington, DC, 1976

A method for structuring and optimizing the content of chemistry courses on the basis of quantitative methods is proposed in this article.
The structuring of the chemistry content with the help of information models of intra-subject and inter-subject links allows to offer new educational technologies with the purpose to develop a whole idea of the world.
We can see how complex is the configuration of the structure.
General Chemistry: the academic handbook for universities. - 24th edition., Revised / Edited by Rabinovich V.A. - L.: Chemistry, (1985) 704 pp
The method of semantic structures in educational process. // Chemistry at School.

Improving Chemistry Supply Chain with Business Intelligence Architecture updates Tiago Vieira de Carvalho 1, a, Renato José Sassi 1,b 1 Nove de Julho University, Pos Graduation in Industrial Engineering – Avenue Francisco Matarazzo 612 –, São Paulo SP – Brazil atiagovc@gmail.com, brjsassi@gmail.com Keywords: Business Intelligence, Supply Chain Management, Rework, Process standardization, Chemistry Industry.
In 2007 it started an important Project that made a chemistry company drastically review the way it used to measure results and to conduct its business units and processes.
In reality, modern supply chain is liable to be affected by the unfavorable factors both from the outside environment and from the entities in the chain due to its characteristics of multi-entity, cross-region and complex structure [5].
The project goal was to standardize several figures and process in a worldwide level helping on the company results follow up and consolidation The chemistry industry that had the project applied, is divided into several business units.
Results BP project was a successful project that brought several advantages to the chemistry industry where it was implemented.

It has an inverse spinel structure with large initial saturation magnetization and coercive force.
One is the solid state reaction and the other is wet chemistry synthesis.
The wet chemistry methods Co-precipitation method represents a simple wet chemistry method to produce nan˚Crystalline NF.
EDTA not only acted as a structure directing template, but also a hexadentate ligand and chelating agent.
As a result, highly crystalline spinel ferrites with desired composition, structure and morphology were obtained.

The results show the micellar structure could be effectively cross-linked via click chemistry and also be dissociated at reduction condition, which may realize it's potential application as novel drug delivery carriers.
To address above problem, cross-linked strategy has been utilized to fix the micellar structure via covalent bonding[4], and stimuli-responsive copolymers were used from amphiphilic diblock copolymers extended to double hydrophiphilic triblock copolymer.
To date, several methods have been used for the fabrication of SCL micelles including carbodiimide coupling[5-6], amidation[7-8], or Michael addition[9-11], bifunctional alkyl iodide 1,2-bis(2-iodoethoxy)ethane(BIEE) [12], and click chemistry[13].
The bis-(hydroxyethyl)disulfide was added to the self-assembled micellar solution at pH 10 for fixed the micellar structures via click chemistry.
After shell cross-linking via click chemistry, a new characteristic signal at 8.5 ppm of the 1,2,3-triazole ring was detected by 1H NMR analysis (Fig. 2c, d), and the absorbance peak characteristic of the alkynyl group at ~2120 cm-1 completely disappeared from the FT-IR spectra of SCL micelle with PDEA core, suggesting the click groups were fully reactive for the quantitative click reaction and the degree of crosslinking could be controlled by click chemistry.

China e-mail: hongqili@dhu.edu.cn Keywords: Coumarin, 1,2,3-Triazole, Click chemistry, Synthesis.
A new coumarin-1,2,3-triazole diad was designed and synthesized by Pechmann-Duisberg reaction and click chemistry.
The structures of the synthesized compounds were characterized by 1H NMR, 13C NMR, IR and mass spectrum.
All of the data in the very clean spectra were in good accordance with the structure.
The structures of the synthesized new compounds were characterized by 1H NMR, 13C NMR, IR and mass spectrum.

Kohn got 1998 Nobel Prize in Chemistry [5-7] as proposed DFT.
DFT is a powerful tool in theoretical chemistry [9-11].
When Na + dominates the holes in the C3A lattice, three kinds of stable solid solution structures can be formed, one of them is Ca8.5 NaAl6O18 whose structure is similar to Al6O18 which has a ring structure.
Yang: Progress in Chemistry Vol. 17 (2005), p. 192.
Du, et al: Journal of Fuel Chemistry Technology Vol. 36 (2008), p. 12 (In Chinese) [19] Y.S, M.F.