Conjugated double helices via self-dimerization of α,α′-dianilinotripyrrins †Electronic supplementary information (ESI) available: CCDC 1849984, 1849988, 1849990–1849996, 1850011–1850013, 1850022 and 1850026. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8sc02

A new motif for artificial double helices was developed on the basis of α,α′-disubstituted tripyrrin.

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