Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Chemistry |
Creator |
Stang, Peter J. |
Other Author |
Chi, Ki-Whan; Park, Joo-Yeon; Hwang, Ho Yun; Lee, Young Min |
Title |
Self-selected formation of single discrete supramolecules with flexible, bidentate ligands in the coordination-driven self-assembly |
Date |
2008 |
Description |
Flexible donor ligands like 1,2-bis(3-pyridyl)ethyne or 1,4-bis(3-pyridyl)-1,3-butadiyne selfassemble into discrete 2-D supramolecules instead of infinite networks upon combination with organoplatinum 90, 120, and 180 degree acceptor units. These systems are unique examples of versatile pyridine donors adjusting their bonding directionality to accommodate rigid platinum acceptors in the formation of closed macrocycles. Discrete, nanoscopic 3-D cages are also prepared in high yield via coordination-driven self-assembly from bidentate 3-substituted pyridines and tripod organoplatinum acceptors. Flexible, bidentate 3-substituted pyridine donors and a rigid organopalladium acceptor are also exclusively selfassembled into discrete 2-D macrocycles. Moreover, discrete supramolecules are successfully prepared from ambidentate donor ligands and platinum containing acceptors. Despite the possibility of forming more than one product, ambidentate ligands prefer to self-assemble predominantly into one species. Flexible, ambidentate pyridyl-carboxylate based donor ligands like sodium 3-(3-pyridyl)benzoate, sodium 4-(3-pyridyl)benzoate and potassium 4-(3-pyridyl)ethynylbenzoate self-assemble into discrete [2+2] macrocyclic species instead of infinite networks when combined with a 90 degree organoplatinum acceptor. In each case only one isomeric ensemble is selectively formed in high yield. All products are characterized by electrospray ionization mass spectrometry (ESI-MS), 31P{1H} and 1H NMR spectroscopy. They are the first examples of discrete supramolecules incorporating flexible, bidentate donor ligands. Despite their potential versatility, these flexible donors adjust their bonding directionality to accommodate a rigid acceptor in the formation of one discrete ensemble. |
Type |
Text |
Publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
First Page |
205 |
Last Page |
208 |
Subject |
Bidentate ligands; Flexible donor ligands; Supramolecules; Coordination-driven self-assembly |
Subject LCSH |
Ligands (Biochemistry); Macromolecules; Self-assembly (Chemistry) |
Language |
eng |
Bibliographic Citation |
Chi, K.-W., Park, J.-Y., Hwang, H. Y., Lee, Y. M., & Stang, P. J. (2008). Self-selected formation of single discrete supramolecules with flexible, bidentate ligands in the coordination-driven self-assembly. Proceedings of IFOST-2008 - 3rd International Forum on Strategic Technologies, art. no. 4602976, 205-8. |
Rights Management |
(c) 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
Format Medium |
application/pdf |
Format Extent |
244,056 bytes |
Identifier |
ir-main,8642 |
ARK |
ark:/87278/s60s06v4 |
Setname |
ir_uspace |
ID |
705539 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s60s06v4 |