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Molecular associations between indolizines and tetracyanoethylene
Author(s) -
Bruni Paolo,
Conti Carla,
Giorgini Elisabetta,
Iacussi Marco,
Maurelli Eziana,
Tosi Giorgio
Publication year - 1994
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570310502
Subject(s) - tetracyanoethylene , chemistry , adduct , kinetic energy , infrared , computational chemistry , ion , molecule , photochemistry , complex formation , organic chemistry , inorganic chemistry , physics , quantum mechanics , optics
Spectroscopic, thermodynamic and kinetic properties of molecular interactions between indolizines and tetracyanoethylene are reported. The interactions involved in the complexes are weak as evidenced by the low formation constants. The kinetic behaviour indicates the initial formation of a pI‐complex that is rapidly transformed into a σ‐complex and thereafter into the final adduct(s). Apart from the results obtained by other techniques, infrared data clearly evidence vibrational contributes characteristic of the complexes, the tricyanovinyl derivatives and the tetracyanoethylene radical anion.