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8449721 
Journal Article 
Syntheses and molecular structure of (C8H8)Ln(2,4-C7H11) · THF (Ln Nd, Er) 
Zhang, S; Jin, J; Wei, G; Chen, W; Liu, J 
1994 
Yes 
Journal of Organometallic Chemistry
ISSN: 0022-328X
EISSN: 1872-8561 
483 
1-2 
57-60 
English 
LnCl3 (LnNd, Er) reacts with K2C8H8 to yield the complex (C8H8)LnCl·2THF, which reacts with K(2,4-C7H11) (2,4-C7H11 = 2,4-dimethylpentadienyl) to form (C8H8)Ln(2,4-C7H11)·THF. The compound (C8H8)Nd(2,4-C7H11). THF(1) crystallizes from the mixed solvents hexane and THF in monoclinic space group P2 1, with a = 8.734(1), b = 10.915(4), c = 9.786(2) Å, β = 104.13(1)°, V= 904.8(4) Å3, Dc = 1.53 g cm-3 and Z = 2. The crystal of (C8H8)Er(2,4-C7H11). THF (2) belongs to monoclinic space group P21/m with a = 7.776(2), b = 13.030(5), c = 8.729(3) Å, β = 101.21(2)°, V = 867.59(0.46) Å3, Dc = 1.73 g cm-3 and Z = 2. Because of the difference between the radii of Nd and Er, 2 is not isostructural with 1. The THF molecule in 2 is situated against the open jaws of the pentadienyl ligand, and in compound 1, it is situated by the back of the pentadienyl ligand. © 1994. 
2,4-Dimethylpentadienyl; Crystal structure; Cycloooctatetraenyl; Erbium; Neodymium