In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 48, No. 12 ( 1993-12-1), p. 1753-1759
Abstract:
The reactions of (η 5 -C 5 Me 5 ) 2 Ln(μ-Cl) 2 ML 2 (Ln = Y, La, Lu; M = Li, K; L = Et 2 O, dme) 3a-c with the sodium iminoacetylacetonates 2a-b yield monomeric metallocene chelate complexes , (Ln = Y, La, Lu; R = C 6 H 5 , C 6 H 4 -4-Me) 4a-d which have been characterized by IR, NMR and mass spectrometry. In the case of the lanthanum complex 4c, the chelating structure was confirmed by an X-ray structure analysis. 4c crystallizes monoclinically in space group P2 1 /c with a = 10.232(3), b = 10.216(1), c = 29.047(7)Å, α = γ = 90.0°, β = 97.76(3)°, Ζ = 4, and R = R w = 0.0378 for 4026 observed reflections. The new complexes are sensitive to oxygen and moisture and soluble in all common organic solvents.
Type of Medium:
Online Resource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1993-1210
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
1993
detail.hit.zdb_id:
2078109-X
detail.hit.zdb_id:
124635-5
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