The crystal and molecular structures of dichloro [N,O-(D,L)-diaminopropionic acid] platinum(II) and Dichloro [N,O-(L)-lysine] platinum(II) monohydrate |
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| Institution: | 1. Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4010 Debrecen, P.O. Box 21, Hungary;2. Department of Physical Chemistry, University of Debrecen, H-4010 Debrecen, P.O.Box 7, Hungary;3. HAS Wigner Research Centre for Physics, 1121 Budapest, Konkoly Thege Miklós u. 29-33, Hungary;4. Department of Biophysics, Faculty of Science, Palacky University, 17. Listopadu 12, 77146 Olomouc, Czech Republic;5. Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i. Kralovopolska 135, 61565 Brno, Czech Republic |
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| Abstract: | K2PtCl4 reacts with L-lysine and with D,L-diaminiopropionic acid (Dap) forming the neutral complexes PtCl2(N,O-Lys)]·H20 (1) and PtCl2(N,O-Dap)], (2) respectively.Compound 1 is monoclinic, space group P21 with a = 11.262(3), b = 11.041(2), c = 9.690(2) Å, β = 102.07(5)°, V = 1178(1) Å3 and Z = 4. Compound 2 is monoclinic, space group P21/n with a = 8.777(1), b = 10.615(2), c = 7.947(1) Å, β = 94.98(3)°, V = 738(1) Å3 and Z = 4. In both compounds, the zwitterionic ligands form an N,O-five membered chelate with the platinum atom. Structures 1 and 2 were refined to R values of 3.3% and 6.3% respectively. |
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