Stable meso-Aryl β-Alkyl Hybrid Sapphyrin with a Warped π-Conjugation Circuit and Neo-Confused Sapphyrin-Silver(I) Complex.
A meso-aryl and β-alkyl substituted sapphyrin and its rhodium(I) and silver complexes were synthesized. This sapphyrin was so stable that the non-inverted and warped structure could be analyzed by X-ray crystallography even in its neutral state. Its bis-rhodium(I) complex has a more planar structure than the sapphyrin with enhanced aromaticity over the conjugation circuit. On the other hand, silver metalation of the sapphyrin caused a marked core rearrangement into a neo-confused sapphyrin derivative with a C(α)-N bond and a twisted macrocycle.
['Mori|Daiki|D|', 'Yoneda|Tomoki|T|http://orcid.org/0000-0002-9804-0240', 'Hoshino|Tyuji|T|', 'Neya|Saburo|S|']
sapphyrins π-conjugation aromaticity rearrangement neo-confused porphyrinoid