Journal
POLYHEDRON
Volume 95, Issue -, Pages 24-29Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2015.04.006
Keywords
Iron complex; Tridentate ligand; X-ray structure; Ring opening polymerization; Polylactide
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [2014R1A1A1002224]
- National Research Foundation of Korea [2014R1A1A1002224] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Dimeric iron(III) complexes bearing acetylacetonate (acac) ligands and tridentate chiral Schiff base ligands, which were synthesized from condensation reactions between salicylaldehyde and aminoindanol, were prepared and characterized by various methods, including infrared spectroscopy and mass spectrometry. X-ray analysis revealed that two iron centers are each coordinated octahedrally within the complexes, but are situated in different coordination environments; one is attached to two tridentate ligands with meridional isomerization, while the other is coordinated to two acac molecules and two of the oxygen atoms of the indanol moieties of the Schiff bases. The complexes showed higher activity than Fe(acac)3 for the ring opening polymerization of lactide. (c) 2015 Elsevier Ltd. All rights reserved.
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