Crystal structure of 1,1-diacetylferrocene dihydrazoneстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:The title compound, [Fe(C7H9N2)2], crystallizes with two crystallographically independent molecules in the unit cell. These represent the chiral atropoisomers distinguished by the mutual arrangement of the two acetyl-hydrazone groups with a cis conformation of the C=N bonds. The two cyclopentadienyl (Cp) rings are planar and nearly parallel, the tilt between the two rings being 3.16(16)° [4.40(18)° for the second independent molecule]. The conformation of the Cp rings is close to eclipsed, the twist angle being 0.1(2)° [3.3(2)°]. The two acetyl-hydrazone substituents are also planar and are inclined at 13.99(15)/9.17(16)° [6.83(17)/14.59(15)°] relative to the Cp rings. The Fe - C bond lengths range from 2.035(3) to 2.065(2)Å, with an average of 2.050(3)Å [2.036(3) to 2.069(2), average 2.046(3)Å], which agrees well with those reported for most ferrocene derivatives. In the crystal, the molecules form dimers via two strong N - H⋯N hydrogen bonds. The dimers are linked into a three-dimensional framework by weak N - H⋯N hydrogen bonds.