Premium
Synthesis and Structure of Triphenylscandium‐bis(tetrahydrofuran)
Author(s) -
Putzer Markus A.,
Bartholomew Glenn P.
Publication year - 1999
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199911)625:11<1777::aid-zaac1777>3.0.co;2-j
Subject(s) - tetrahydrofuran , chemistry , phenyllithium , trigonal bipyramidal molecular geometry , molecule , crystallography , yield (engineering) , metathesis , ab initio , coplanarity , stereochemistry , crystal structure , materials science , organic chemistry , geometry , polymer , solvent , mathematics , metallurgy , polymerization
Metathesis reaction of ScCl 3 (THF) 3 with 3 equiv. of phenyllithium in THF/Et 2 O solution affords ScPh 3 (THF) 2 ( 1 ) in good yield. The crystallographically determined molecular structure of 1 reveals a trigonal‐bipyramidal coordination sphere with the THF molecules in the axial positions and Sc–C bonds of 2.245(4)–2.266(4) Å. The σ‐bound phenyl groups are only slightly twisted (0, 8, 18°) with respect to the ScC 3 plane. Ab initio calculations suggest that the THF molecules play some direct role in the moderate coplanarity of the phenyl rings.