Synthesis and Molecular Structure of Tris(pentamethylphenyl)aluminum, (C6Me5)3Al, and the Magnesium Cluster [Mg6(μ3-OH)2(μ3-Br)2(μ2-Br)8(OEt2)8]
Tóm tắt
The synthesis and molecular structures of tris(pentamethylphenyl)aluminum, (C6Me5)3Al, (I), and the magnesium cluster [Mg6(μ
3-OH)2(μ
3-Br)2(μ
2-Br)8(OEt2)8] (II), are reported. Both compounds were isolated from the same system. The aluminum atom in (I) resides in an almost idealized trigonal planar environment. The dihedral angles of the pentamethylphenyl rings relative to the AlC3plane in (I) are 67.2, 62.4, and 61.2°. The neutral magnesium cluster, (II), is interesting in that contains six magnesium atoms each of which resides in octahedral environments.
Tài liệu tham khảo
J. F. Garst and F. Ungvary, in H. G. Richey, Jr. (ed.), Grignard Reagents New Developments (Wiley, New York, 2000), Chap. 7.
S. C. Watson and J. F. Eastham (1967). J. Organomet. Chem. 9, 165.
J. F. Garst, K. E. Lawrence, R. Batlaw, J. R. Boone, and F. Ungvary (1994). Inorg. Chim. Acta 222, 365.
G. M. Sheldrick, SHELXTL 6.1, Crystallographic Computing System (Bruker Analytical X-Ray Systems, Madison, WI, 2000).
J. J. Jerius, J. M. Hahn, A. F. M. M. Rahman, O. Mols, W. H. Ilsley, and J. P. Oliver (1986). Organometallics 5, 1812.
J. F. Malone and W. S. McDonald (1967). Chem. Comm. 444.
J. F. Malone and W. S. McDonald (1972). J. Chem. Soc., Dalton Trans. 2646.
J. K. Vohs, E. Downs, M. E. Barfield, S. D. Goodwin, and G. H. Robinson (2002). Polyhedron 21, 531.
Q. Wu, Y. Zhang, and S. Wang (2000). J. Cluster. Sci. 11, 253.