In the asymmetric unit of the title compound, [CuBr(C18H18N4)]Br, there are three crystallographically independent cations. One of the cations exhibits positional disorder of the pyridin-2-yl-methyl groups over two sets of sites with refined occupancies of 0.672 (8) and 0.328 (8). The outer-sphere bromine counter-ion is severely disordered over multiple sites. In each cation, the Cu(II) ion is ...

An alternative strategy for the synthesis of 1-aryl- and 1-alkyl-2-methylsulfanyl-4-(4-fluorophenyl)-5-(pyridin-4-yl)imidazoles as potential p38α mitogen-activated protein kinase inhibitors is reported. The regioselective N-substitution of the imidazole ring was achieved by treatment of α-aminoketones with different aryl or alkyl isothiocyanates. In contrast to previously published synthesis ro...

In the title compound, [Cu(C₇H₇N₂O)(C₇H₈N₂O)(H₂O)]ClO₄·H₂O, the Cu(II) ion is five-coordinated by the N atoms from the 1-(pyridin-2-yl)ethanone oximate and 1-(pyridin-2-yl)ethan-one oxime ligands and by the water O atom in a distorted square-pyramidal geometry. The two organic ligands are linked by an intra-molecular O-H⋯O hydrogen bond. In the crystal, mol-ecules and ions are linked by O-H⋯O h...

The new polynucleating tripodal proligand H 6 tren(dpa) 3 , containing thirteen nitrogen donors of four different types, was designed, synthesized, and isolated in good yield (∼60%) via a transition-metal-free triple N-arylation tren with HXdpa (X = Br or F), using K 2 CO Cs as base (H tris(2-aminoethyl)amine, 6-halogeno-N-(pyridin-2-yl)pyridin-2-amine). HFdpa prepared excellent (90–92%) by rea...

In the title compound, C(23)H(19)N(8)O(+)·BF(4) (-), one pyridine N atom is protonated. Two intra-molecular N-H⋯N hydrogen bonds occur. In the crystal, inter-molecular N-H⋯N hydrogen bond links neighboring C(23)H(19)N(8)O(+) units into cyclic supra-molecular dimers while C-H⋯O hydrogen bonds link the C(23)H(19)N(8)O(+) units into a two-dimensional supra-molecular network structure.

In the title complex, [MnCl(2)(C(13)H(13)N(3))]·H(2)O, the Mn(II) atom is in a distorted square-pyramidal environment, with an Addison τ parameter of 0.037. The coordination geometry is defined by three N-atom donors from the tridentate 2-(pyridin-2-yl)-N-(pyridin-2-yl-methyl-idene)ethanamine ligand and two terminal Cl atoms. Although the H atoms of the lattice water molecule were not located, ...

In the title compound, [Ir(C11H8N)2(C18H14N)], the IrIII ion adopts a distorted octa-hedral coordination environment defined by three C,N-chelating ligands, one stemming from a 2-(4-phenyl-5-methyl-pyridin-2-yl)phenyl ligand and two from 2-(pyridin-2-yl)phenyl ligands, arranged in a facial manner. The IrIII ion lies almost in the equatorial plane [deviation = 0.0069 (15) Å]. In the crystal, int...

The title compound, C(15)H(17)N(3), was prepared by reaction of benzoyl-pyridine and hexahydropyrimidine. The 1,3-diazinane ring adopts a chair conformation with one N-H group axial and the other equatorial. The axial N-H group participates in very weak hydrogen bonding to the lone pair of electrons of the N atom with the equatorial H atom producing a very weakly hydrogen-bonded dimer. The pyri...