Jump to main content
Jump to site search

Issue 30, 2012
Previous Article Next Article

Double stranded polymeric ladderphanes with 16-π-electron antiaromatic metallocycle linkers

Author affiliations

Abstract

Three double stranded polymeric ladderphanes with 16-π-electron antiaromatic metallocycle linkers are synthesised by ring opening metathesis polymerisation of the corresponding bisnorbornene monomers. Scanning tunnelling microscopic (STM) images indicate that these polymers can assemble nicely on a graphite surface to form a highly ordered pattern which has been observed in other ladderphanes with different kinds of aromatic linkers. Little change in 1H NMR, absorption spectra and electrochemical oxidation potential between these polymers and the corresponding monomers suggest that there would be no interactions between adjacent antiaromatic linkers in these polymeric ladderphanes. Presumably, the distance between two antiaromatic rings in these ladderphanes (5–6 Å) is far too long in comparison with that between two rings in methylene-bridged antiaromatic superphanes (2.5 Å<), where stabilisation is predicted by theoretical calculations.

Graphical abstract: Double stranded polymeric ladderphanes with 16-π-electron antiaromatic metallocycle linkers

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Jan 2012, accepted on 20 Feb 2012 and first published on 21 Feb 2012


Article type: Paper
DOI: 10.1039/C2OB25114K
Org. Biomol. Chem., 2012,10, 5948-5953

  •   Request permissions

    Double stranded polymeric ladderphanes with 16-π-electron antiaromatic metallocycle linkers

    H. Huang, C. Chao, S. Lee, H. Wu, C. Chen and T. Luh, Org. Biomol. Chem., 2012, 10, 5948
    DOI: 10.1039/C2OB25114K

Search articles by author

Spotlight

Advertisements