Azumao Toyota

Violation of Hund's multiplicity rule in the electronically excited states of conjugated hydrocarbons

Shiro Koseki, Takeshi Nakajima, Azumao Toyota · Canadian Journal of Chemistry · 1985 · 64 citations

Natural Sciences, Chemistry, Physics +17

Symmetry Rule for Predicting Bond Distortions in Conjugated Hydrocarbons

Takeshi Nakajima, Azumao Toyota, Sadao Fujii · Bulletin of the Chemical Society of Japan · 1972 · 47 citations

Natural Sciences, Chemistry, Physics +17

The instabilities of the Hartree–Fock solutions and the lattice instabilities for conjugated hydrocarbons: The bond‐order and bond‐length alternations

Azumao Toyota, T. Tanaka, Takeshi Nakajima · International Journal of Quantum Chemistry · 1976 · 44 citations

Natural Sciences, Chemistry, Physics +13

Energy Component Analysis of the Pseudo-Jahn−Teller Effect in the Ground and Electronically Excited States of the Cyclic Conjugated Hydrocarbons:  Cyclobutadiene, Benzene, and Cyclooctatetraene

Shiro Koseki, Azumao Toyota · The Journal of Physical Chemistry A · 1997 · 37 citations

Natural Sciences, Chemistry, Physics +15

Violation of Hund's multiplicity rule in the lowest excited singlet–triplet pairs of cyclic bicalicene and its higher homologues

Azumao Toyota, Takeshi Nakajima · Journal of the Chemical Society Perkin Transactions 2 · 1986 · 36 citations

Natural Sciences, Chemistry, Physics +16