نتایج جستجو برای: Ethylenediamine

تعداد نتایج: 2122  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
mohammad rahimizadeh ghadir rajabzadeh

kinetic parameters of the ammonolysis reaction of dichloroethane in nonaqueous media are studied and the optimum reaction conditions are reported. a suitable reactor for running the reaction under high pressure in the range of 50 to 500 °c is designed. kinetic behaviours of the system is studied and other reaction parameters such as rate constant, kinetic order, and activation energy are determ...

Journal: :Dalton transactions 2014
Ke-Zhao Du Mei-Ling Feng Xing-Hui Qi Zu-Ju Ma Long-Hua Li Jian-Rong Li Cheng-Feng Du Guo-Dong Zou Xiao-Ying Huang

Two mixed-valent thioarsenates, namely (enH2)(4.5)[In(As(V)S4)3][As2(III)(μ-S2)S3]Cl (1) and (enH2)MnAs(III)As(V)S6 (2) (en = ethylenediamine), have been solvothermally synthesized and characterized. Thermal stability, magnetic and mixed-valent optical properties, as well as theoretical band structures and DOSs, of 1 and 2 have also been studied.

Journal: :The Journal of biological chemistry 1989
S N Gacheru P C Trackman S D Calaman F T Greenaway H M Kagan

The observation that aliphatic diamines become poor substrates as the carbon chain length decreases and that ethylenediamine, the shortest diamine, is an irreversible inhibitor of lysyl oxidase led to the investigation of the mechanism of inhibition by ethylenediamine. The cis but not the trans isomer of 1,2-diaminocyclohexane was also a potent irreversible inhibitor of lysyl oxidase, consisten...

Journal: :Nucleic acids research 1993
R I Hogrefe M M Vaghefi M A Reynolds K M Young L J Arnold

Deprotection of methylphosphonate oligonucleotides with ethylenediamine was evaluated in a model system. Methylphosphonate sequences of the form 5'-TTTNNTTT, where N was either N4-bz-dC, N4-ibu-dC, N2-ibu-O6-DPC-dG, N2-ibu-dG, N6-bz-dA, or T, were used to determine the extent of modifications that occur during deprotection. Up to 15% of N4-bz-dC was found to transaminate at the C4 position when...

Journal: :Chemical communications 2003
Xiang Ouyang Tsung-Yen Tsai Dong-Hwang Chen Qi-Jie Huang Wu-Hsun Cheng Abraham Clearfield

The solvothermal reaction of elemental zinc with sulfur in ethylenediamine (en) as solvent yields [ZnS-0.5(NH2CH2CH2NH2)], 1, an unprecedented ethylenediamine pillared ZnS layered compound, containing two dimensional (2-D) boat-type 6-membered rings, which was characterized by ab initio structure solution from powder diffraction data (SDPD).

2013
Pradeep Yadav Neetu Kumari Shalini Saingar Yogesh C. Joshi

A series of novel 1,4diazepines have been synthesized from β-diketones / β-ketoesters of 4acetylaminobenzene sulphonyl chloride. Desired compounds were prepared by the reaction of novel βdiketone / β-ketoester derivatives of [N4-(4acetylamino) benzene sulphonyl piperazinylN1-1bromopropane] with ethylenediamine to get 1, 4dizapines. All the newly synthesized compounds were characterized with IR ...

Journal: :Dalton transactions 2014
Yuji Mikata Saaya Takeuchi Hideo Konno Satoshi Iwatsuki Sakiko Akaji Ikuko Hamagami Masato Aoyama Keiko Yasuda Satoshi Tamotsu Shawn C Burdette

Molecular hybrids of TQEN (N,N,N',N'-tetrakis(2-quinolylmethyl)ethylenediamine) and EDTA (ethylenediamine-N,N,N',N'-tetraacetic acid) were examined as fluorescent Zn(2+) sensors. Upon the addition of Zn(2+), N,N-BQENDA (N,N-bis(2-quinolylmethyl)ethylenediamine-N',N'-diacetic acid, 1a) exhibits a 30-fold emission enhancement at 456 nm (λex = 315 nm, ϕZn = 0.018) in buffer (HEPES, pH = 7.5, 100 m...

Journal: :National Cancer Institute carcinogenesis technical report series 1979
J. H. Weisburger E. K. Weisburger L. W. Thomas P. Walker

A bioassay for the possible carcinogenicity of N-(1-naphthyl)ethylenediamine dihydrochloride was conducted using Fischer 344 rats and B6C3F1 mice. N-(1-Naphthyl)ethylenediamine dihydrochloride was administered in the feed, at either of two concentrations, to groups of 50 male and 50 female animals of each species. Twenty-five rats of each sex and 50 mice of each sex were placed on test as contr...

2017
Xinghua Wu Chao Tan Qingkai Wang Yanyan Guo Dianyuan Wang Yongqian Wang Dawei Meng

Two-dimensional Bi₂Se₃ nanosheets with hexagonal shape are synthesized by a solution synthetic route. The Bi₂Se₃ nanosheets are 120 nm in edge width and 7 nm in thickness. The size of the Bi₂Se₃ nanosheets can be controlled by choosing different kinds of reducing agents including hydroxylamine and ethylenediamine. Subsequently, we demonstrate a configuration of two-color all-optical switching b...

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