| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1304261 | Inorganic Chemistry Communications | 2012 | 4 Pages |
New chiral Schiff-base ligand l-H2vap, derived from the condensation of o-vanillin and l-2-amino-3-phenyl-1-propanol, reacts with Cu(Ac)2·H2O and Gd(NO3)3·6H2O in the presence of triethylamine to produce a chiral tetranuclear complex l-[Cu4(Hvap)2(vap)2(MeOH)2](NO3)2·MeOH (1). The single-crystal X-ray diffraction analyses reveal that complex 1 crystallizes in the chiral monoclinic space group P21 with Z = 2. Four copper(II) atoms are held together by two alkoxide μ3-O2 − atoms and two phenoxide μ2-O2 − atoms from four individual ligands to form a boat-shaped {Cu4O4} unit. The solid-state CD spectra confirm the chiral nature of complex 1. Magnetic studies indicate that there are strong antiferromagnetic interactions between the adjacent copper(II) ions in complex 1.
Graphical abstractA chiral tetranuclear complex, l-[Cu4(Hvap)2(vap)2(MeOH)2](NO3)2·MeOH (1), has been synthesized and structurally characterized. The solid-state CD spectra and magnetic property of complex 1 were also investigated.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new chiral Schiff-base ligand l-H2vap was reported. ► The synthesis, structure and CD spectra of a tetranuclear complex were investigated. ► The magnetic studies reveal strong antiferromagnetic interactions between copper(II) ions.
