1,2,4,5-Tetrazines vs. Carboxylic Acid Dimers: Molecular Chemistry vs. Supramolecular Chemistry

✍ Scribed by Lourdes Infantes; Mary F. Mahon; Louise Male; Paul R. Raithby; Simon J. Teat; Jürgen Sauer; Nadine Jagerovic; José Elguero; Sam Motherwell

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: German
• Weight: 299 KB
• Volume: 86
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200390104

✦ Synopsis

Abstract

The structures of six new tetrazines have been determined and their molecular packing has been compared to the supermolecular architecture observed in related carboxylic acid dimers. In the tetrazines, covalent NN bonds are considered to replace the intermolecular OH⋅⋅⋅O hydrogen bonds of the carboxylic acids. In the systems investigated, it is apparent that, in the majority of cases, the covalent six‐membered ring of the tetrazine is an appropriate replacement for the carboxylic acid synthon. This apparent interplay between molecular and supramolecular units may have applications in the crystal engineering of new materials.