Exclusive Hydrophobic Self-Assembly of Adaptive Solid-State Networks of Octasubstituted 9,9'-Spirobifluorenes

Org Lett. 2015 Jul 17;17(14):3494-7. doi: 10.1021/acs.orglett.5b01576. Epub 2015 Jul 7.

Abstract

An easy and powerful access to 3,3',6,6'-tetrasubstituted 9,9'-spirobifluorene derivatives with tetrahedral orientation of the peripheral groups (i.e., -I, -CN, -NO2, -CH═O, -COOH, -C≡CH, -4-Py) was developed. The NMR and HRMS results are in agreement with the proposed formula and the solid-state molecular structures obtained by single-crystal X-ray diffraction. They form molecular solids self-assembled via exclusive hydrophobic interactions. Solid-state selection and adaptation can be obtained on the basis of variable compact packing of functional groups present on the 9,9'-spirobifluorene backbone.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallography, X-Ray
  • Fluorenes / chemical synthesis*
  • Fluorenes / chemistry
  • Hydrogen Bonding
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Spiro Compounds / chemical synthesis*
  • Spiro Compounds / chemistry

Substances

  • Fluorenes
  • Spiro Compounds