i have tried to prepare metal free macro cyclic schiff base ligand number of times but i could not get it ,i m getting only polymeric type compound that is not dissolving in any solvent ,give me some suggestion to isolate this and their synthesis ?
what type of linkers are used ?
diformyl methyl phenol and diaminopropane
Do you have access to this? http://pubs.acs.org/doi/abs/10.1021/cr0683616?journalCode=chreay
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