Rhodium complexes with N-phenyl anthranilic acid ligands as catalysts for hydrogenation

Abstract

The complexes of rhodium with N-phenyl anthranilic acid and anthranilic acid were synthesised and their structure was investigated with infrared spectroscopy. It appears that rhodium interacts with N-phenyl anthranilic acid via the carboxyl and the amine groups. With anthranilic acid, the bond with the amine could not be unambiguously established. X-ray diffraction and elemental analysis data suggest that the complexes are not pure and that the presence of Rh (0) is likely. Catalytic hydrogenation results and mercury poisoning experiments confirm the presence of Rh(0).

Direct and continuous hydrothermal flow synthesis of thermochromic phase pure monoclinic VO2 nanoparticles

“…An additional broad feature observed in these patterns at 2y B 51 was due to the silicone-based matrix used during the sample preparation. 26 This is in direct contrast to previous CHFS works, which resulted in a mixture of VO 2 phases and required heat treatment to 600 1C to produce the phase-pure VO 2 (M). 18 It is suggested that the higher reaction temperature (ca.…”

Synthesis, structural analysis, and docking studies with SARS-CoV-2 of a trinuclear zinc complex withN-phenylanthranilic acid ligands

“…NPA can also bind either through one carboxylate O atom, as in the motif Zn(Hdmpz) 2 (L 2 ) 2 (Hdmpz is 3,5-dimethylpyrazole and L 2 is N-phenylanthranilate), or through both carboxylate O atoms, as in the dinuclear motif [Cu 2 (C 6 H 5 NHC 6 H 4 COO) 4 (CH 3 CH 2 OH) 2 ] (Jin & Wang, 2014;Tas ¸et al, 2010). NPA ligands were reported to coordinate to rhodium for synthesizing hydrogenation catalysts, as seen in RhPAA (PAA is N-phenylanthranilic acid) (Ros et al, 2002). Here, NPA was found to interact with the rhodium center via both the amine and carboxyl groups.…”

“…NPA is reported to act as a chelating ligand for metals, with potential for coordination through both the N atom of the amino group (N) and the O atoms of the carboxyl group (-COO À ) (Ros et al, 2002). NPA can also bind either through one carboxylate O atom, as in the motif Zn(Hdmpz) 2 (L 2 ) 2 (Hdmpz is 3,5-dimethylpyrazole and L 2 is N-phenylanthranilate), or through both carboxylate O atoms, as in the dinuclear motif [Cu 2 (C 6 H 5 NHC 6 H 4 COO) 4 (CH 3 CH 2 OH) 2 ] (Jin & Wang, 2014;Tas ¸et al, 2010).…”

Synthesis, characterization, thermal analysis and biological study of new thiophene derivative containing o-aminobenzoic acid ligand and its Mn(II), Cu(II) and Co(II) metal complexes

“…Mixed-ligand complexes included anthranilic acid can inhibit the DNA interactions, and cytotoxicity [4]. The literature survey show that the complexes of rhodium with anthranilic acid and N-phenyl anthranilic acid can act as catalysts for hydrogenation [5], terbium(III) complexes of anthranilic acid can appear the photoluminescence properties [6], a model into a peroxidase inhibitor complex [7]. The complexes of metals ion with two differences kinds of bioligands, as a hetero-aromatic nitrogen bases may be present the importing biochemical interactions in different ways [8].…”