نتایج جستجو برای: 2 bipyridine

تعداد نتایج: 2526784  

Journal: :Chinese Journal of Catalysis 2021

1-Butanol is a potential bio-based fermentation product obtained from cellulosic biomass. As value-added chemical, 2-ethyl-1-hexanol (2-EH) can be produced by Guerbet conversion 1-butanol. This work reports the enhanced catalytic reaction of 1-butanol to 2-EH series Cp*Ir complexes (Cp*: 1,2,3,4,5-pentamethylcyclopenta-1,3-diene) coordinated bipyridine-type ligands bearing an ortho-hydroxypyrid...

2008
Ge Song Er-Jun Hao Wei Li

Crystals of the title adduct, C(10)H(8)N(2)·2C(3)H(3)NO(2), were obtained from a methanol/water solution of cyano-acetic acid and 4,4'-bipyridine at room temperature. In the crystal structure, cyano-acetic acid and centrosymmetric 4,4'-bipyridine mol-ecules are linked by O-H⋯N hydrogen bonds to form three-component supra-molecular adducts. The acidic H atom is almost midway between the O and N ...

2012
Jie Li Ke-Wei Lei Dong-Guo Xia

In the title complex, {[Ni(2)(C(14)H(4)N(2)O(8))(H(2)O)(6)]·2H(2)O}(n), the two Ni(II) atoms are located in different special positions (one on a twofold rotation axis and the second on a centre of symmetry) and have different distorted octa-hedral environments (one by two N atoms from a bipyridine unit, two O atoms from two water mol-ecules and two O atoms from two carboxyl-ate groups, and the...

2008
Hong Cui Wen-Juan Li Ruo-Jie Tao

In the title compound, [Zn(2)(C(14)H(8)O(5))(2)(C(12)H(12)N(2))(2)]·2H(2)O, the Zn(II) atom exhibits a distorted octa-hedral coordination geometry, defined by two N atoms from one 4,4'-dimethyl-2,2'-bipyridine ligand and four O atoms from two bridging 2,2'-oxydibenzoate ligands. The mol-ecule is a centrosymmetric dimer. π-π Stacking inter-actions are observed between the 4,4'-dimethyl-2,2'-bipy...

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

2012
Ya-Feng Li Yue Xu Xiao-Lin Qin Yong-Peng Yuan Wen-Yuan Gao

In the crystal structure of the title compound, {[Cu(C(6)H(2)O(5))(C(10)H(8)N(2))(H(2)O)]·2H(2)O}(n), an infinite chain parallel to [110] is formed by the linking of Cu(H(2)O)(2,2'-bipyridine) units through a furan-2,5-dicarboxyl-ate bridge. The Cu(II) atom shows a square-pyramidal geometry, with one furan-2,5-dicarboxyl-ate O atom in the apical position. The dihedral angle between the planes o...

2011
Qihui Wu Fuxiang Wang Nanqing Jiang Li Cao Qinhe Pan

The title compound, {[Cu(C(12)H(6)N(2)O(4))(H(2)O)(3)]·H(2)O}(n), was synthesized under hydro-thermal conditions. The Cu(2+) ion is six-coordinated by three water O atoms, and two N atoms and one O atom of the 2,2'-bipyridine-3,3'-dicarboxyl-ate bridging ligand in a sligthly distorted octa-hedral environment. The 2,2-bipyridine-3,3'-dicarboxyl-ate bridges link the Cu(2+) ions into chains along ...

2008
Anna Dołęga Katarzyna Baranowska

The title compound, [Zn(2)(C(12)H(27)O(3)SSi)(4)(C(10)H(8)N(2))(CH(4)O)], is a binuclear complex with the two Zn(II) atoms linked via a bridging 4,4'-bipyridyl ligand. One of the Zn(II) atoms is penta-coordinated by two O,S-chelating tri-tert-butoxy-silanethiol-ate units and one N atom of a 4,4'-bipyridine ligand, and the other Zn(II) atom is tetra-hedrally coordinated by two tri-tert-butoxy-si...

2008
Joseph H. Nettleman Robert L. LaDuca

In the title compound, {[Co(C(10)H(8)N(2))(H(2)O)(4)](ClO(4))(2)·2C(10)H(8)N(2)·2H(2)O}(n), slightly distorted octa-hedrally coordinated Co(II) ions situated on inversion centers are linked into polycationic chains through 4,4'-bipyridine tethering ligands. These are connected into supra-molecular layers by hydrogen bonding involving aqua ligands, perchlorate anions and uncoordinated water mol-...

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