名称:
Bis(2,4,7-trimethylindenyl)cobalt(II) andrac-2,2′,4,4′,7,7′-hexamethyl-1,1′-biindene
摘要:
The crystal and molecular structures of bis(eta (5)-2,4,7-trimethylindenyl)cobalt(II), [Co(C12H13)(2)], (I), and rac-2,2',4,4',7,7' hexamethyl-1,1' -biindene, C24H26, (II), are reported. In the crystal structure of (I), the Co atom lies on an inversion centre and the structure represents the first example of a bis(indenyl)cobalt complex exhibiting an eclipsed indenyl conformation. The (1R,1'R) and(1S,1'S) enantiomers of the three possible stereoisomers of (II), which form as by-products in the synthesis of (I), cocrystallize in the monoclinic space group P2(1)/c. In the unit cell of (II), alternating (1R,1'R) and (1S,1'S) enantiomers pack in non-bonded rows along the a axis, with the planes of the indenyl groups parallel to each other and separated by 3.62 and 3.69 Angstrom.