H. Schumann et al., ORGANOMETALLIC COMPOUNDS OF THE LANTHANID ES .93. TETRAMETHYLCYCLOPENTADIENYL COMPLEXES OF SELECTED 4F-ELEMENTS, Zeitschrift fur anorganische und allgemeine Chemie, 621(3), 1995, pp. 341-345
Citations number
31
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur anorganische und allgemeine Chemie
The trichlorides of lanthanum, neodymium, samarium, and terbium react
with Na(C(5)Me(4)H) in THF to yield the homoleptic complexes Ln(C(5)Me
(4)H)(3) [Ln = La (1a), Nd (1b), Sm (1c), Tb (1d)]. On the other hand
the reactions of HoCl3, TmCl3, and LuCl3, with Na(C(5)Me(4)H) result o
nly with formation of the dicyclopentadienyl complexes (C(5)Me(4)H)(2)
LnCl(THF) [Ln = Ho (2e), Tm (2f), Lu (2h)]. The metallocenes (C(5)Me(4
)H)(2)Ln(THF)(2) [Ln = Sm (3c), Yb (3g)] are obtained by the reactions
of LnI(2) (Ln = Sm, Yb) with Na(C(5)Me(4)H). The H-1- and C-13-NMR sp
ectra as well as the X-ray crystal structure of the triscyclopentadien
yl complexes 1a and 1c are discussed.