Molecular structures of host-guest complexes with Rebek's Diacid
✍ Scribed by Robert A. Pascal Jr.; Douglas M. Ho
- Book ID
- 104203232
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 824 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4020
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## Abstract A chiral molecular tweezer obtained from (+)‐usnic acid placed in solution in the presence of various aromatic compounds afforded complexes with low association constants. Thus, the X‐ray structure of assembly **3i** is presented, where the guest is sandwiched between the two pincers of
## Abstract The dynamics in the host–guest complexes of the molecular tweezers **1 a,b** and clips **2 a,b** with 1,2,4,5‐tetracyanobenzene (TCNB, **3**) and tropylium tetrafluoroborate (**4**) as guest molecules were analyzed by temperature‐dependent ^1^H NMR spectroscopy. The TCNB complexes of tw