Communication: Unsaturated ladder polymers consisting of a perfect sequence of all‐carbon six‐membered rings (polycatafusenes) are predicted to exhibit intrinsic electrical conductivity and high optical nonlinearity. One step towards this goal, the chemically induced unfolding of a coiled ladder polymer (see Figure), where the geometries of the carbons marked “B” regulates the overall structure, is reported. magnified image
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Godt et al. (1991) studied this question.
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