نتایج جستجو برای: 2 bipyridine

تعداد نتایج: 2526784  

Journal: :Angewandte Chemie 2022

Synthesizing H2O2 from water and air via a photocatalytic approach is ideal for efficient production of this chemical at small-scale. However, the poor activity selectivity 2 e− oxidation reaction (WOR) greatly restricts efficiency production. Herein we prepare bipyridine-based covalent organic framework photocatalyst (denoted as COF-TfpBpy) air. The solar-to-chemical conversion (SCC) 298 K 333...

Reactions of equemolar amounts of lead (II) nitrate and 2,2'- bipyridine o r l , 10- phenanthroline in aqueous methanolicsolution yield crystals of Pb (bipy)(H O)(NO ) (1) or Pb (phen) (H O) (NO ) (2) respectively. Their structures were determined by X-ray crystallography. The method and structure determination is described

Journal: :Journal of the American Chemical Society 2010
Eric D Bloch David Britt Chain Lee Christian J Doonan Fernando J Uribe-Romo Hiroyasu Furukawa Jeffrey R Long Omar M Yaghi

Reaction of AlCl(3)·6H(2)O with 2,2'-bipyridine-5,5'-dicarboxylic acid (H(2)bpydc) affords Al(OH)(bpydc) (1, MOF-253), the first metal-organic framework with open 2,2'-bipyridine (bpy) coordination sites. The material displays a BET surface area of 2160 m(2)/g and readily complexes metals to afford, for example, 1·xPdCl(2) (x = 0.08, 0.83) and 1·0.97Cu(BF(4))(2). EXAFS spectroscopy performed on...

2011
Yan-Lin Zhang

The asymmetric unit of the title coordination polymer, {[Gd(2)(C(8)H(4)O(5))(3)(C(10)H(8)N(2))(2)(H(2)O)(2)]·3H(2)O}(n), contains two Gd(III) cations, one of which is surrounded by three 5-hy-droxy-isophthalate anions, one 2,2'-bipyridine ligand and two water mol-ecules in a distorted N(2)O(7) tricapped trigonal-prismatic coordination geometry. The other Gd cation is coordinated by four 5-hy-dr...

2010
Juan Yang Jun Dai Xiaohan Wang

In the title coordination polymer, [Pb(C(7)H(5)O(2))(NO(3))(C(10)H(8)N(2))](n), the Pb(II) ion is eight-coordinated by two N atoms from one 2,2'-bipyridine ligand, two O atoms from one benzoate anion and four O atoms from three nitrate groups (one chelating, two bridging) in a distorted dodecahedral geometry. Adjacent Pb(II) ions are linked by bridging nitrate O atoms through the central Pb(2)O...

2009
Reda F. Mahmoud Christoph Janiak

In the title complex, [Cu(C(5)H(3)O(2)S)(2)(C(10)H(8)N(2))(H(2)O)], the Cu(II) atom is in a distorted square-pyramidal environment, with an Addison τ parameter of 0.07. The coordination geometry is defined by two nitro-gen donors from the 2,2'-bipyridine ligand, two O atoms from two monodentate thio-phene-2-carboxyl-ate ligands and one O atom from the aqua ligand. The latter occupies the elonga...

Journal: :Dalton transactions 2004
Jennifer A Zampese F Richard Keene Peter J Steel

The first metal complexes of 2,5-di(2-pyridyl)thiazolo[5,4-d]thiazole (5) are described. X-Ray crystal structures are reported for the free ligand 5, a dinuclear copper complex 6 and the two diastereoisomers, 7meso and 7rac, of the dinuclear bis(2,2'-bipyridine)ruthenium complex. The two diastereoisomers of 7 and the 4,4'-dimethyl-2,2'-bipyridine analogue 8 are readily separated by cation excha...

2012
Ling Zeng Qinglin Wang

The asymmetric unit of the title compound, [Zn(2)(C(2)O(4))(C(10)H(8)N(2))(2)(H(2)O)(4)](C(8)H(6)N(3)O(2))(2)·6H(2)O, contains one half of the centrosymmetric binuclear cation, one anion and three water mol-ecules. In the cation, the oxalate ligand bridges two Zn(II) ions in a bis-bidentate fashion, so each Zn(II) ion is coordinated by two O atoms from the oxalate ligand, two N atoms from two 2...

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