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Abstract
Single crystals of Ag(I) and Cu(II) complexes with 4-pyridin-4-yl-(1,3) dithiol-2-one (PYDO), [Ag(PYDO)2]ClO4, [Ag(PYDO)2(NO3)], and [Cu(PYDO)2(NO3)2] have been prepared and characterized. PYDO displays excellent coordination to Cu(II) and Ag(I). The 1,3-dithiol five-member ring is an electron donor that enhances the coordination ability of the py group. HOMO-1 σ coordination and d–π electron back-donating from metal to ligand (LUMO) are suggested based on the calculation. Weak interactions and secondary bonds from the anion to cation play an important role in the molecular assembly.
Acknowledgments
This work was supported by the National NSF (20371033), the NSF of the Education Committee of Jiangsu Province (Grant 06KJB150102) and the Doctoral Foundation of Suzhou University.
