936928-63-1Relevant articles and documents
Iron(II) and zinc(II) monohelical binaphthyl-salen complexes with overlapping benz[a]anthryl sidearms
Wiznycia, Alexander V.,Desper, John,Levy, Christopher J.
, p. 1520 - 1527 (2007)
The synthesis of the polyaromatic aldehyde 1-hydroxybenz[a]anthracene-2- carboxaldehyde is reported via a seven step protocol from 9,10- dihydroanthracene, with an overall yield of 30%. Two equivalents of the aldehyde are condensed with (R)-1,1′-binaphthyl-2,2′-diamine to produce a new binaphthyl-salen ligand, which is subsequently complexed to iron(ii) and zinc(ii) ions. The ligand and complexes are characterized by single-crystal X-ray crystallography. The complexes have distinct helical structures with overlapping benz[a]anthryl sidearms, and only M-helices are observed. The ligand and complexes are further characterized by solution 1H and 13C NMR spectroscopy as well as UV-visible and ECD spectroscopies. These studies indicate that there is a single component in solution, consistent with the solid state characterization. The Royal Society of Chemistry 2007.
