Nanometer-scale ordering in cast films of columnar metallomesogen as revealed by STM observations

摘要

STM observations were performed on a cast film of a columnar metallomesogen ([Cr(5C(8))(3)]; 5C(8) = 1-(3,4,5-trioctyloxyphenyl)3-( 3,4-dioctyloxyphenyl)propane-1,3-dionate anion) on a graphite surface, revealing the nanometer-scale surface ordering into an oblique lattice (a = 10.5 nm, b = 11.5 nm, α = 55°) possibly due to the &UDelta;&UDelta;-chiral interactions.