Аннотация:Magnetic strings: Single-molecule-magnet-like [Mn3IIIO] units are strung into two chain compounds along the magnetic easy axis with formate and azide anions, respectively, as bridges (see picture). The enhanced uniaxial anisotropy and intrachain coupling of these two chain compounds mean that they act as single-chain magnets with a high energy barrier for magnetization relaxation. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z702648_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.