Synthesis and structure of Fe[C 5(CH 2Ph) 5] 2 and Lu(C 8H 8)[C 5(CH 2Ph) 5

Abstract

The crystal structures of decabenzylferrocene, Fe[C 5(CH 2Ph) 5] 2 ( 1), obtained from FeCl 2 and LiC 5(CH 2Ph) 5 at low temperature and (cyclooctatetraenyl)(pentabenzylcyclopentadienyl)lutetium, Lu(C 8H 8)[C 5(CH 2Ph) 5] ( 2), obtained from (C 8H 8)LuCl(thf) and KC 5(CH 2Ph) 5 ( 3), have been determined. 1 crystallizes in the space group P2 1/ c with a 1388.5(2), b 2213.1(6), c 2373.0(3) pm, β 103.50(1)°, and V = 7.0905 × 10 6 pm 3. Solution of the structure led to final values of R = 0.043 (unit weights) for 11181 observed reflections with F o ≥ 6σ( F o). Crystals of 2 belong to the space group P2 1/ a. The unit-cell parameters for 2 are a 1799.0(2), b 1030.2(1), c 1902.3(2) pm, β 97.41(1)°, V = 3.4962 × 10 6 pm 3 with final values of R = 0.021 and R w = 0.030 for 7453 observed reflections with F o ≥ 3σ( F o.