97240-82-9Relevant academic research and scientific papers
CHEMICAL AND THEORETICAL STUDIES OF TAUTOMERISM IN MESO-AZA- AND MESO-TETRA-AZA-PORPHYRINS. CRYSTAL STRUCTURE OF 5-AZA-13,17-DIETHYL-2,3,7,8,12,18-HEXAMETHYLPORPHYRINATOCOBALT(II)
Abeysekera, Ajita M.,Grigg, Ronald,Malone John F.,King, Trevor J.,Morley, John O.
, p. 395 - 402 (2007/10/02)
Meso-azoporphyrins exist in the meso-imino tautomeric form.Attempts to trap or generate the meso-amino tautomer were unsuccessful.STO-3G and CNDO/2 calculations indicate the meso-imino tautomer to lie >/= 22 kcal mol- below the meso-amino tautomer in both meso-monoaza- and meso-tetra-aza-porphyrins.The crystal structure of a meso-monoazaocta-alkylporphyrinatocobalt(II) complex is reported.
