Remarkably Robust Group 4 Metal Half-Sandwich Complexes Containing Two Higher Alkyl Ligands:  X-ray Structure and Reactivity of the Di-<i>n</i>-butyl Complex [Hf(η<sup>5</sup>:η<sup>1</sup>:η<sup>1</sup>-C<sub>5</sub>Me<sub>4</sub>SiMe<sub>2</sub>NCH<sub>2</sub>CH<sub>2</sub>OMe)<sup>n</sup>Bu<sub>2</sub>]
                                
                                    
                                        作者:Francisco Amor、Thomas P. Spaniol、Jun Okuda                                    
                                    
                                        DOI:10.1021/om970446x
                                    
                                    
                                        日期:1997.10.1
                                    
                                    The reaction of LiR with M(eta(5):eta(1):eta(1)-C5Me4SiMe2NCH2CH2OMe)Cl-2 (1, M = Zr (a), Hf (b)) gives the isolable, thermally stable complexes M(eta(5):eta(1):eta(1)-C5Me4SiMe2NCH2CH2OMe)R-2 (R = Et(2), Pr-n (3), Bu-n (4)), which contain two alkyl ligands with beta-hydrogen atoms.