biostudies-literatureZhao Mthe Scientific Research and Innovation Fund Project of Shandong Energy Research InstituteGuangxi Science and Technology ProjectLinyi UniversityTaishan Scholars Program of Shandong Province3612https://www.ebi.ac.uk/biostudies/studies/S-EPMC9459928biostudies-literatureUnknown14(17)Iron complexes of the types [Fe(HL)₂Cl₂] (<b>Fe1</b>: HL¹ = pyridine-2-aldoxime; <b>Fe2</b>: HL² = 6-methylpyridine-2-aldoxime; <b>Fe3</b>: HL³ = phenyl-2-pyridylketoxime; <b>Fe4</b>: HL⁴ = picolinaldehyde O-methyl oxime) were prepared and characterized by elemental analysis and IR spectroscopy. The crystal structure of <b>Fe2</b>, determined by single-crystal X-ray diffraction, featured a distorted octahedral coordination of the iron center binding with two ligands of HL². The X-ray structure and infrared spectral data indicated that pyridine-oxime ligands act as unionized bidentate ligand by coordinating with N_pyridine and N_oxime. The catalytic performance for isoprene polymerization, catalPolymersSynthesis, Characterization and Catalytic Property Studies for Isoprene Polymerization of Iron Complexes Bearing Unionized Pyridine-Oxime Ligands.PMC9459928SEI S202101LYDX2020BS012tsqn201812112Grant No. AB21196038；Talent No. AD21238015Zhao MWang QZhang XMa YZhu GWang LfalseSynthesis, Characterization and Catalytic Property Studies for Isoprene Polymerization of Iron Complexes Bearing Unionized Pyridine-Oxime Ligands.Iron complexes of the types [Fe(HL)₂Cl₂] (<b>Fe1</b>: HL¹ = pyridine-2-aldoxime; <b>Fe2</b>: HL² = 6-methylpyridine-2-aldoxime; <b>Fe3</b>: HL³ = phenyl-2-pyridylketoxime; <b>Fe4</b>: HL⁴ = picolinaldehyde O-methyl oxime) were prepared and characterized by elemental analysis and IR spectroscopy. The crystal structure of <b>Fe2</b>, determined by single-crystal X-ray diffraction, featured a distorted octahedral coordination of the iron center binding with two ligands of HL². The X-ray structure and infrared spectral data indicated that pyridine-oxime ligands act as unionized bidentate ligand by coordinating with N_pyridine and N_oxime. The catalytic performance for isoprene polymerization, catal2022-01-01T00:00:00Z2022 Sep2025-04-19T07:09:08.014Z2025-04-19T07:09:08.014ZS-EPMC94599283608068510.3390/polym14173612