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A Lead (II) 3D Coordination Polymer Based on a Marine Cyclic Peptide Motif
Department of Chemistry, National Dong-Hwa University, Hualien 974, Taiwan
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
* Author to whom correspondence should be addressed.
Received: 26 March 2013; in revised form: 16 April 2013 / Accepted: 24 April 2013 / Published: 26 April 2013
Abstract: The crystal structure of a naturally occurring cyclic tetrapeptide cyclo(Gly-L-Ser-L-Pro-L-Glu) [cyclo(GSPE)] was obtained. The conformation of synthesized cyclo(GSPE) fixes the coordination to lead ion in a 1:1 ratio. This cyclo(GSPE)-Pb complex was constructed as an asymmetric 3D network in the crystalline state. The polymerization of a heavy metal ion with a rigid asymmetric cyclic tetrapeptide represents the first example of a new class of macrocyclic complexes.
Keywords: natural product; cyclic peptide; lead; coordination polymer; crystal structures; macrocyclic chemistry
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Chakraborty, S.; Tyagi, P.; Tai, D.-F.; Lee, G.-H.; Peng, S.-M. A Lead (II) 3D Coordination Polymer Based on a Marine Cyclic Peptide Motif. Molecules 2013, 18, 4972-4985.
Chakraborty S, Tyagi P, Tai D-F, Lee G-H, Peng S-M. A Lead (II) 3D Coordination Polymer Based on a Marine Cyclic Peptide Motif. Molecules. 2013; 18(5):4972-4985.
Chakraborty, Subrata; Tyagi, Pooja; Tai, Dar-Fu; Lee, Gene-Hsiang; Peng, Shie-Ming. 2013. "A Lead (II) 3D Coordination Polymer Based on a Marine Cyclic Peptide Motif." Molecules 18, no. 5: 4972-4985.