Abstract
Reaction of the ligands 2-(5-methyl-3-phenyl-1H-pyrazol-1-yl)ethanol (L1) and 2-(3-methyl-5-phenyl-1H-pyrazol-1-yl)ethanol (L2) with [MCl2(CH3CN)2] (M=Pd(II), Pt(II)) gave the complexes trans-[MCl2L2] (M=Pd(II) and Pt(II), L=L1, L2).The new complexes were characterised by elemental analyses, conductivity measurements, mass spectrometry, IR, 1H and 13C{1H} NMR spectroscopies. The crystal and molecular structures of the ligand L2 and the complexes trans-[PdCl2L2] (L=L1, L2) were resolved by X-ray diffraction. Both palladium complexes consisted on monomeric trans-[PdCl2L2] (L=L1, L2) species and molecular packing is determined by intermolecular hydrogen bonding interactions.The NMR spectra of the complexes [PdCl2L2] (L=L1, L2) in CDCl3 solution, is consistent with a very slow rotation of the pyrazolic ligands around the Pd–N bond, so that two conformational isomers can be observed in solution (syn and anti). Different behaviour was observed for complexes [PtCl2L2] (L=L1, L2), for which only the anti isomer was detected in CDCl3 solution at room temperature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
