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Homocarbaporphyrinoids: The m-o-m and p-o-p Terphenyl Embedded Expanded Porphyrin Analogues and Their RhI Complexes |
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| Authors: | Dr. B. Adinarayana Mainak Das Dr. Cherumuttathu H. Suresh Prof. A. Srinivasan |
| Affiliation: | 1. School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, 752050 Odisha, India;2. Inorganic & Theoretical Chemistry Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum, 695019 Kerala, India |
| Abstract: | Stable homocarbaporphyrinoids were successfully synthesized by incorporating the m-o-m and p-o-p terphenyl units into the porphyrin core. The distinct bonding modes of terphenyl in the macrocycle generated two structural isomers with two and four carbon atoms in the macrocyclic environment. The core was utilized to stabilize the RhI ion. The spectral and structural analyses revealed that the restricted (m-o-m) and allowed (p-o-p) conjugation in the macrocyclic core provide overall non-aromatic characteristics both to the free bases and their complexes. |
| Keywords: | coordination chemistry porphyrins porphyrinoids non-aromaticity |