Martin R. Johnston, Ronald N. Warrener and Maxwell J. Gunter
The rigid bis-porphyrinic host 2 forms 1:1 complexes with rigid 5,15-bis(4-pyridyl)porphyrins and both 1:1 and 2:1 complexes with tetrapyridylporphyrin 4, with the latter complex providing a new example of a self-assembled system containing an enclosed molecular environment.