In the heteromolecular title compound, C(15)H(10)O(5)·C(10)H(8)N(2), the two components are linked by O-H⋯N hydrogen bonds to form four-component ring supra-molecular assemblies. These are further inter-connected with neighbouring mol-ecules by weak inter-molecular C-H⋯π inter-actions and C-H⋯O hydrogen bonds to generate a three-dimensional network.

In the acid mol-ecule of the title complex, C(10)H(8)N(2)·C(8)H(8)O(3), the acetyl C-C-C-O torsion angle is -32.1 (3)°, and in the mol-ecule of the base, the dihedral angle between the two pyridine rings is 23.41 (10)°. In the crystal structure, inter-molecular O-H⋯N hydrogen bonds link the acid and the base mol-ecules into a one-dimensional triple-helix framework extended along the b axis.

Three new heteroleptic cationic iridium(III) complexes (1-3) bearing 5,5'-bis(7-benzothiazolylfluoren-2'-yl)-2,2'-bipyridine (N^N) and 2-(7-R-fluoren-2'-yl)pyridine (R = H, naphthalimide, NPh2) (C^N) ligands were synthesized and characterized. Their photophysical properties were investigated systematically by UV-vis absorption, emission, and transient absorption spectroscopy, and the UV-vis abs...

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...

In the title co-crystal, C(10)H(8)N(2)·C(8)H(7)NO(4)S, the formate group is coplanar with the pyridyl ring of the acid [dihedral angle = 6.2 (7)°], while the carb-oxy-methyl-sulfanyl group makes a C-S-C-C torsion angle of 70.2 (1)° with the pyridine ring. The dihedral angle between the pyridyl rings of the 4,4'-bipyridine mol-ecule is 27.4 (1)°. The acid and the 4,4'-bipyridine mol-ecules are i...

4,4'-Bis(dihexylaminocarbonyl)-2,2'-bipyridine (BDC-Bipy) was synthesized and studied systematically as a chelating reagent for metal ions extraction in supercritical CO(2). The compound showed high extraction efficiency for Co(2+) (100%), Cu(2+) (100%), Cd(2+) (98.2%), and Zn(2+) (100%) ions and good extraction efficiency for Sr(2+) (79.4%) and Pb(2+) (89.8%) when the extraction was performed ...

Tow new compound of type [(chelate)2Cu-OH-Cu(chelate)2] X3.nH2O, where chelate=1,10-phenanthroline; X=Cl¯(n=3.5) and chelate=4,4'-dimethyl-2,2'-bipyridine;  (n=5) have been synthesized and their properties investigated. The complexes show room temperature magnetic moment order of 1.0 B.M. per copper atom. The X-band ESR spectrum of powdered sample...