نتایج جستجو برای: dimethyl formamide pulping

تعداد نتایج: 28423  

2010
Chun-Ting Yeh Hsin-Kuan Liu Chia-Jing Lin Chia-Her Lin

The title complex, [Mg(3)(CHO(2))(3)(C(9)H(3)O(6))(C(3)H(7)NO)(3)](n), exhib-its a two-dimensional structure parallel to (001), which is built up from the Mg(II) atoms and bridging carboxyl-ate ligands (3 symmetry). The Mg(II) atom is six-coordinated by one O atom from a dimethyl-formamide mol-ecule, two O atoms from two μ(6)-benzene-1,3,5-tricarboxyl-ate ligands and three O atoms from three μ(...

2009
Jinfang Zhang

In the title compound, [Cd(C(2)N(3))(2)(C(3)H(7)NO)(2)], the Cd(2+) ion lies on an inversion center and adopts an octa-hedral coordination geometry, in which four N atoms from four different dicyanamide ligands lie in the equatorial plane and two dimethyl-formamide O atoms occupy the axial positions. The Cd atoms are connected by two dicyanamide ligands, resulting in a neutral chain propagating...

Journal: :Molecules 2006
Yehya Mahmud Elkholy Mohamed Abdelhamed Morsy

2-Amino-4-phenyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile (3) was synthesized by treating cyclohexanone (1) with 2-benzylidenemalononitrile (2) in the presence of ammonium acetate. The reactivity of compound 3 towards dimethylformamide dimethyl acetal (DMF-DMA), carbon disulfide, urea, thiourea, formamide, formic acid, acetyl chloride and isothiocyanate were studied. In addition, the antimicr...

2008
Ruirui Yun Wei Ying Baoliang Qi Xuyang Fan Huilu Wu

In the title compound, [Cu(C(16)H(14)N(4)O)(2)](C(6)H(2)N(3)O(7))(2)·4C(3)H(7)NO, the Cu(II) ion is located on a crystallographic inversion center and is coordinated in a distorted octa-hedral environment by four N atoms and two O atoms forming two long Cu-O bonds. One of the unique dimethyl-formamide solvent mol-ecules is disordered over two sites with occupancies of 0.715 (6) and 0.285 (6). T...

2008
Hui-Liang Wen Dan-Dan Chen Chong-Bo Liu

In the title compound, C(16)H(9)BrO(5)·2C(3)H(7)NO, the chromene ring system is essentially planar. The two dimethyl-formamide solvent mol-ecules are linked by inter-molecular O-H⋯O hydrogen bonds to the 6-bromo-3-hydr-oxy-4-oxo-2-phenyl-4H-chromene-8-carboxylic acid molecules.

Journal: :international journal of nanoscience and nanotechnology 2008
b. sadeghi m. a. s. sadjadi a. pourahmad

in this study silver/poly vinyl alcohol (pva) and silver/poly vinyl pyrrolidone (pvp) nanocomposites were prepared via reduction of silver salt by employing dmf (n, n`- dimethyl formamide) as a reducing agent. effects of protective agents such as pva and pvp were also described here. we show that the acidic ph of pvp solution also affects the interaction between protective agents and silver nan...

2009
Quanfu Cao Dacheng Li

In the title complex, [Cd(C(15)H(11)N(5)O(8))(H(2)O)(2)]·2C(3)H(7)NO, the Cd(II) ion is located on a twofold rotation axis and is seven-coordinated in a distorted penta-gonal-bipyramidal manner. The asymmetric unit comprises one metal ion, one doubly deprotonated N,N'-bis-(3-carboxy-prop-2-eno-yl)pyridine-2,6-dicarbohydrazide ligand, two coordinating water mol-ecules and two dimethyl-formamide ...

2007
Shaomin Shi Xuegang Song Zongqiu Hu Xieqing Yu

The Schiff base ligand derived from the condensation of 3,5-dibromo-salicylaldehyde and 1,2-phenyl-enediamine, in the presence of dimethyl-formamide, forms the centrosymmetric title neutral binuclear distorted complex, [Cd(2)(C(20)H(10)Br(4)N(2)O(2))(2)(C(3)H(7)NO)(2)], with the two octa-hedral Cd atoms linked by two O atoms. All bond lengths and angles show normal values.

2008
Mehmet Akkurt Sema Öztürk Yıldırım Nihat Şireci Hasan Küçükbay Orhan Büyükgüngör

The title compound, C(25)H(30)N(4) (2+)·2Br(-)·H(2)O, was synthesized from 1,1'-propyl-enedibenzimidazole and (E)-1-bromo-but-2-ene in dimethyl-formamide solution. The two benzimidazole ring systems are essentially planar, with maximum deviations of 0.011 (4) and 0.023 (3) Å. The dihedral angle between these two ring systems is 25.87 (15)°. The crystal structure is stabilized by inter-molecular...

2010
Lauren A. Borkowski Debasis Banerjee John B. Parise

The structure of the title compound, [Mg(C(10)H(6)O(6)S(2))(C(3)H(7)NO)(2)](n), consists of MgO(6) octa-hedra ( symmetry) connected to naphthalene-1,5-disulfonate ligands ( symmetry) in the equatoral plane, forming a two-dimensional network propagating parallel to (010). The coordination sphere of the Mg atom is completed by the O atoms of two N,N-dimethyl-formamide (DMF) mol-ecules in the axia...

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