SCHEDULED MAINTENANCE:
Addition of polyglycol dimethyl ethers or macrocyclic polyethers to a solution of sodium tetraphenylboron ion-pairs in tetrahydrofuran strongly broadens the 23Na n.m.r. line, indicating that the tetrahydrofuran solvation shell is replaced by the complexing agent.
A. M. Grotens, J. Smid and E. de Boer, J. Chem. Soc. D, 1971, 759 DOI: 10.1039/C29710000759
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