Modular Synthesis of Linear Bis‐ and Tris‐monodentate Fused [6]Polynorbornane‐Based Ligands and their Assembly into Coordination Cages |
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| Authors: | Mark D. Johnstone Eike K. Schwarze Prof. Dr. Guido H. Clever Dr. Frederick M. Pfeffer |
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| Affiliation: | 1. Research Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, Geelong, Victoria 3217 (Australia) http://www.deakin.edu.au/profiles/fred‐pfeffer;2. Institute for Inorganic Chemistry, Georg‐August University G?ttingen, Tammannstrasse 4, 37077 G?ttingen (Germany) http://www.clever‐lab.de |
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| Abstract: | A modular approach has been developed for the synthesis of rigid linear di‐ and tritopic ligands based on a fused [6]polynorbornane scaffold. The design provides up to three sites for installing functionality, including both “ends” and a “central” position with the advantage that each region can be independently addressed during synthesis. To illustrate the utility of the approach, both pyridyl and picolyl units were incorporated to provide six new ligands, with centers and ends either matched or mismatched. Indeed, both [M2L4] cages with endohedral functionality and [M3L4] complexes were cleanly produced from these ligands with assembled structures confirmed by using 1H NMR spectroscopy, HRMS, and molecular modelling. |
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| Keywords: | coordination cages endohedral functionalization metallosupramolecular architectures self‐assembly supramolecular chemistry |
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