Synthesis and crystal structure of a four-coordinate aryloxo samarium complex [Sm(OAr)3(THF)](THF) (OAr=2.6-ditertbutyl-4-methylphenoxo)

Article abstract of DOI:10.1016/0277-5387(94)00251-9

The aryloxo samarium complex [Sm(ArO)3(THF)](THF) has been prepared by the reaction of SmCl3 with 3 equiv. of NaOAr in THF. An X-ray crystallographic analysis shows the complex to be a four-coordinate aryloxide complex. Three oxygen atoms of aryloxo and one oxygen atom of THF coordinate to the samarium to form a distorted tetrahedron. The average Sm-O(Ar) distance is 2.151(7) ?.