A Series of Mononuclear Complexes Constructed from Transition Metals and Amino Acid Derived Ligands: Syntheses, Structures and Photoluminescence |
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| Authors: | LI Xin-Fa CAO Rong |
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| Institution: | State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, China |
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| Abstract: | Eight neutral mononuclear complexes constructed from transition metals (M = Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ), Zn(Ⅱ), Cd(Ⅱ)) and ligands N-(2-pyridylmethyl)-L-phenylalanine (L-Hpmpa) and N-(2-pyridylmethyl)-L-tyrosine (L-Hpmtyr) have been synthesized by both hydrothermal and conventional room temperature reactions. Four of them have been structurally characterized by single-crystal X-ray diffractions. They are:Co(L-pmpa)_2·2H_2O] 1, Ni(L-pmpa) _2·2H_2O] 2, Cu(L-pmpa) _2·2H_2O] 3 and Cu(L-pmtyr) _2·2H_2O] 4. Single-crystal X-ray analysis, IR and elemental analysis revealed that complexes 1, 2 and 3 are isostructural. Powder X-ray diffraction, IR and elemental analysis revealed that complexes 4, 5 (ZnL-pmtyr] _2·2H_2O), 6 (CdL-pmtyr] _2·2H_2O), 7 (CoL-pmtyr] _2·2H_2O) and 8 (NiL-pmtyr] _2·2H_2O) are isostructural. The photoluminescence pro-perties of L-Hpmtyr ligand, compounds 5 and 6 were also investigated. |
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| Keywords: | amino acid zinc complex cadmium complex photolumineseenee |
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