- Synthesis and structural characterisation of zinc complexes bearing furanylmethyl and thiophenylmethyl derivatives of (R,R)-1,2-diaminocyclohexanes for stereoselective polymerisation of poly(rac-lactide)
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Novel dichloro zinc complexes based on enantiopure N,N-diamine ligands bearing furanylmethyl and thiophenylmethyl pendent groups were synthesised, and their crystal structures were determined using X-ray crystallography. The isopropoxide derivatives (gene
- Kwon, Kyuong Seop,Nayab, Saira,Lee, Hyosun,Jeong, Jong Hwa
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- Synthesis and structural characterisation of copper complexes containing methylthiophene and methylfuryl derivatives of (R,R)-1,2-diaminocyclohexane as precatalysts for polymerisation of rac-lactide
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A series of Cu(II) complexes supported by methylthiophenyl- and methylfuryl-based (R,R)-1,2-diaminocyclohexane frameworks were synthesised. The synthesised complexes were characterised using infrared spectroscopy, elemental analysis, and single-crystal X-ray diffraction studies. The isopropoxide derivatives of the complexes were employed in the ring-opening polymerisation (ROP) of rac-lactide (rac-LA), yielding polylactides with high number-averaged molecular weight. The catalytic species in this study effectively mediated the stereoselective ROP of rac-LA in a physiological manner (Pr up to 0.92 at room temperature), with ROP activity being mainly dependent on steric hindrance and geometric constraints imposed by methyl substituents attached to the methylthiophenyl and methylfuryl ligands.
- Ham, Ji-Hye,Cho, Juhyun,Nayab, Saira,Jeong, Jong Hwa
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