Chemistry is traditionally divided into organic and inorganic chemistry. Recommanded Product: Tris(2-pyridylmethyl)amine. The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent,Which mentioned a new discovery about 16858-01-8
Rhenium(III), (IV) and (V) complexes with 6-hydroxypicolinic acid
The reaction of trans-[ReOBr3(PPh3)2] with 6-hydroxypicolinic acid (H2hpa) in ethanol led to the isolation of the ReIVReIV dimer (mu-O)(mu-hpa)2[Re2Br(OEt)(PPh3)2] (1). Each hpa2- anion acts as a bridging ligand with the coordination of a neutral pyridol oxygen to one rhenium ion, and the coordination of a carboxylate oxygen and a pyridinate nitrogen to the other rhenium ion. By using [ReOCl3(PPh3)2] as precursor in ethanol, two products were isolated, i.e. (mu-Cl)(mu-O)(mu-hpa)[ReIV2Cl2(OEt)(PPh3)2] (2) and [ReIIICl2(Hhpa)(PPh3)2] (3). The complexes cis-[ReOX2(Hhpa)(PPh3)] (X = Br (4); Cl (5)) were the only products formed by the reaction of [ReOX3(PPh3)2] with H2hpa in acetonitrile. The bromide equivalent of 3, i.e. [ReIIIBr2(Hhpa)(PPh3)2] (6), was obtained from the reaction of [ReOBr3(PPh3)2] with H2hpa in 2-propanol. Coordination of Hhpa- in 3-6 occurs through the carboxylate oxygen and neutral pyridyl nitrogen. In addition to the X-ray crystal structures, infra-red, 1H NMR, electrochemical and electronic properties are also reported.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Recommanded Product: Tris(2-pyridylmethyl)amine, you can also check out more blogs about16858-01-8
Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI