نتایج جستجو برای: dimethyl formamide pulping

تعداد نتایج: 28423  

2008
Hapipah M. Ali Mohamed Ibrahim Mohamed Mustafa Mohd. Razali Rizal Seik Weng Ng

The Ni atom in the title compound, [Ni(C(17)H(15)N(2)O)(2)]·2C(3)H(7)NO, lies on a twofold rotation axis. It is N,O-chelated by the deprotonated Schiff base 2-[2-(1H-indol-3-yl)ethyl-imino-meth-yl]phenolate ligand in a square-planar coordination environment. The mol-ecule is linked to a solvent mol-ecule by an indole-dimethyl-formamide N-H⋯O hydrogen bond.

2012
Hon Man Lee Jing-Yao Zeng

In the imidazolium cation of the title compound, C19H19N4O2(+)·Cl(-)·C3H7NO, the dihedral angles between the imidazole ring and the phenyl rings are 85.86 (4) and 70.26 (5)°. In the crystal, N-H⋯Cl hydrogen bonds link the imdiazo-lium cations and chloride anions into zigzag chains along [110] and together with C-H⋯Cl and C-H⋯O hydrogen bonds, which involve also the dimethyl-formamide solvent mo...

2013
Kapil Bhesaniya Shipra Baluja

The acoustical parameters of some synthesized azomethines have been studied from ultrasonic velocity and density measurement at different concentration in methanol and dimethyl formamide at 303.15 K. The apparent adiabatic molar compressibilities and apparent molar volume were also evaluated. The results provide useful information about solute-solute and solute-solvent interactions and are of s...

2008
Hamid Khaledi Hapipah Mohd Ali Seik Weng Ng

In the title compound, [Ni(C(17)H(14)N(3)S(2))(2)]·2C(3)H(7)NO, the Ni atom (site symmetry ) is N,S-chelated by two deprotonated Schiff base anions in a distorted square-planar geometry. The dihedral angle between the aromatic ring planes within the ligand is 86.37 (13)°. In the crystal structure, an N-H⋯O hydrogen bond links the complex to the dimethyl-formamide solvent mol-ecule.

2008
Feigang He Yun Xi Jun Li Fengxing Zhang

In the crystal structure of the title compound, [Co(C(13)H(9)N(2)O)(2)]·2C(3)H(7)NO, the Co(II) ion is four-coordinated by two N atoms and two O atoms from two deprotonated 2-(1H-benzimidazol-2-yl)phenol ligands in a distorted tetra-hedral geometry. The dimethyl-formamide solvent mol-ecules are found inside a two-dimensional network structure formed by inter-molecular N-H⋯O hydrogen bonds linki...

2003

Sulfation is an important reaction in the biotransformation of steroid hormones, neurotransmitters, drugs, and other xenobiotics, yet little is known about the effects of organic solvents on sulfotransferase (SULT) activities in vitro. Initial experiments found that surprisingly low levels of solvent had dramatic effects on sulfotransferase activity. Consequently, we evaluated the effects of fi...

2014
Zhenghai Tang Qiuyan Wei Baochun Guo

Materials Butyllithium solution in hexane (1.6 M) and molybdenum disulfide (MoS2, 99.0% purity) with an average diameter of about 1 μm were purchased from Aladdin. Nitrile rubber (NBR) with acrylonitrile content 40%, was manufactured by Jilin Chemical Industry Company, Jilin, China. 1butyl-3-methyimidazolium chloride ionic liquid was supplied by Henan Lihua pharmaceutical Co., Ltd. The chemical...

2008
Bai-Yu Li Jun-Feng Tong Wen-Kui Dong Jian Yao Jian-Chao Wu

The mol-ecule of the title complex, [Cu(C(6)H(2)N(3)O(7))(2)(C(3)H(7)NO)(2)], is disposed about a crystallographic centre of symmetry. The Cu(II) cation is six-coordinated by two phenolate O atoms and two ortho-nitro O atoms of two picrate units and by two carbonyl O atoms from two coordinated dimethyl-formamide mol-ecules, forming a distorted octa-hedral geometry.

2011
Haiyang Wang Guangxin Xia Xuejun Liu Jingkang Shen

The title compound, C(24)H(30)N(2)O(4), was obtained by the reaction of (2R,6S)-4-(tert-but-oxy-carbon-yl)-6-methyl-morpho-line-2-carb-oxy-lic acid with diphenyl-methanamine in dimethyl-formamide solution. The morpholine ring is in a chair conformation. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into chains along the b axis.

2012
ANA SIMONOVIĆ MILANA TRIFUNOVIĆ M. RASPOR A. CINGEL MILICA BOGDANOVIĆ M. DRAGIĆEVIĆ

The expression of transgenes in a host plant may be low for a number of reasons. Both low expression and poor specificity of amplification were encountered during analysis of the expression of the Arabidopsis cytokinin oxidase/dehydrogenase (AtCKX1) gene in transgenic Centaurium erythraea. The optimization of the PCR protocol involved a gradient of annealing temperatures, as well as the applica...

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