U.S. state | Georgia (U.S. state) | São Paulo (state) | Secretary of State | Washington (U.S. state) | state | United States Department of State | Moscow State University | United States Secretary of State | Ohio State University | Michigan State University | New York State Assembly | State Senator | New York State Senate | Rio de Janeiro (state) | Louisiana State Legislature | Iowa State University | Pennsylvania State University | Louisiana State University | Santa Catarina (state) | Florida State University | Paraná (state) | Vienna State Opera | Oregon State University | California State Assembly | Arizona State University | University at Buffalo, The State University of New York | Wayne State University | Tyrol (state) | Washington (state) |
It was pointed out by Henry Rzepa that the conversion of intermediate 5 to 6 can proceed by either a Hückel or a Möbius transition state.