STM images of individual porphyrin hexamers; meso–meso singly linked orthogonal hexamer and meso–meso, β–β, β–β triply-linked planar hexamer on Cu(100) surface

Abstract
Geometrical structures of chain porphyrin arrays adsorbed on Cu(100) are observed by STM: a bridge-like bent structure for mesomeso singly linked orthogonal hexamer, whereas a rigid planar and one-dimensionally stacked structure for mesomeso, β–β, β–β triply-linked hexamer.