Dipyrrin‐Bis(N‐Confused Porphyrin) Conjugate: Synthesis,Synergetic Ligation and Chirality Sensing |
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Abstract: | A fully conjugated system 4 consisting of two 2‐aza‐21‐carbaporphyrin (NCP) subunits bridged by dipyrrin was synthesized by a highly selective condensation of 3‐pyrrole‐NCP 2 with aryl aldehydes. The free base 4 as well as its silver(III) complex 5 exhibited flexibility of the bridge allowing synergetic binding of AgI, thus leading to a mixed‐valence tetraporphyrinic assembly consisting of eight silver atoms which was characterized both in the solid state and in solution. Binding of chiral acid by 4 and 5 was shown by observation of an induced optical activity of the adducts. |
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Keywords: | dimerization dipyrrin porphyrinoids self-assembly silver complexes |
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