Y. Zhang et al., Synthesis and self-assembly of a novel tetrapyrrole containing dipyrrin units linked at the 3,3 '-positions, TETRAHEDR L, 41(40), 2000, pp. 7717-7721
A novel ligand comprising two dipyrrin units linked by a CH2 spacer at the
3-position has been synthesized and used to prepare a double-stranded helic
al assembly. Its structure was confirmed by X-ray analysis. A new approach
to 3,3'-linked dipyrromethanes with CH2 as the spacer is also reported. (C)
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