exo-binding of Na+ between two fused calixarenes and endo binding of Na+ within the calixarene cones in the disodium salt of 1,3-dimethyl ether p-tert-butylcalixarene
- Reaction of 1,3-dimethyl ether p-tert-butylcalixarene (H2L) with sodium hydride in tetrahydrofuran affords the dimeric metallocalixarene species [Na2L]2 which possesses a novel structure in which the Na+ ions are coordinated in two very different environments.
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