Photoreactivity of polymorphs of a ladder polymer with criss-cross and parallel orientations of C![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
C bonds†
Abstract
Two polymorphic forms of a ladder coordination polymer [Zn2(μ-O2C-p-Tol)2(O2C-p-Tol)2(bpe)2] have parallel and criss-cross alignments of the CC bond pairs. Both polymorphs undergo 100% [2+2] cycloaddition reaction but the one with a parallel orientation of CC bonds (thermodynamic product) retains its single crystallinity after the reaction.
![Graphical abstract: Photoreactivity of polymorphs of a ladder polymer with criss-cross and parallel orientations of C [[double bond, length as m-dash]] C bonds](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C3CC47816E&imageInfo.ImageIdentifier.Year=2014)
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![[double bond, length as m-dash]](https://www.rsc.org/images/entities/h2_char_e001.gif)
C bonds
