Arene Selectivity by a Flexible Coordination Polymer Host |
| |
| Authors: | Dr James S Wright Dr Iñigo J Vitórica‐Yrezábal Dr Stephen P Thompson Prof Lee Brammer |
| |
| Institution: | 1. http://www.sheffield.ac.uk/chemistry/staff/profiles/lee brammer;2. Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, UK), Fax: (+44)?114-2229346;3. School of Chemistry, University of Manchester, Oxford Road, Manchester, UK;4. Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, UK |
| |
| Abstract: | The coordination polymers Ag4(O2CCF3)4(phen)3] ? phen ? arene ( 1? phen ? arene) (phen=phenazine; arene=toluene, p‐xylene or benzene) have been synthesised from the solution phase in a series of arene solvents and crystallographically characterised. By contrast, analogous syntheses from o‐xylene and m‐xylene as the solvent yield the solvent‐free coordination polymer Ag4(O2CCF3)4(phen)2] ( 2 ). Toluene, p‐xylene and benzene have been successfully used in mixed‐arene syntheses to template the formation of coordination polymers 1? phen ? arene, which incorporate o‐ or m‐xylene. The selectivity of 1? phen ? arene for the arene guests was determined, through pairwise competition experiments, to be p‐xylene>toluene≈benzene>o‐xylene>m‐xylene. The largest selectivity coefficient was determined as 14.2 for p‐xylene:m‐xylene and the smallest was 1.0 for toluene:benzene. |
| |
| Keywords: | arene separation coordination polymer crystal engineering powder diffraction xylenes |
|
|
