Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2)

Jutzi P, Dahlhaus J, Neumann B, Stammler H-G (1996)
ORGANOMETALLICS 15(2): 747-752.

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Abstract
Several new group 13 element compounds containing the 1-[2-(dimethylamino)ethyl] 2,3,4,5-tetramethylcyclopentadienyl ligand (Cp boolean AND) are described. Reaction of the respective element halide with Cp^Li leads to the compounds 2-8 of the type (C(5)Me(4)CH(2)CH(2)NMe(2))-MX(2) [2, M = Al, X = CH3; 3, M = Al, X = C2H5; 4, M = Al, X = Cl; 5, M = Al, X = Br; 6, M = Al, X = I; 7, M = Ga, X = Cl; 8, M = In, X = Cl]. All compounds feature monomeric structures with intramolecularly coordinated dimethylamino groups. The dynamic behavior in solution is based on fast haptotropic shifts in a ''windscreen-wiper'' type process. In the reaction of 5 with H3Al . NMe(3), the compound (C(5)Me(4)CH(2)CH(2)NMe(2))Al(H)Br (9) is formed. The known correlation of the Al-27 NMR shift with the coordination number at aluminum can be extended to cyclopentadienyl compounds. The structures of 2, 4, and 8 were established by X-ray crystallography.
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Jutzi P, Dahlhaus J, Neumann B, Stammler H-G. Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2). ORGANOMETALLICS. 1996;15(2):747-752.
Jutzi, P., Dahlhaus, J., Neumann, B., & Stammler, H. - G. (1996). Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2). ORGANOMETALLICS, 15(2), 747-752.
Jutzi, P., Dahlhaus, J., Neumann, B., and Stammler, H. - G. (1996). Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2). ORGANOMETALLICS 15, 747-752.
Jutzi, P., et al., 1996. Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2). ORGANOMETALLICS, 15(2), p 747-752.
P. Jutzi, et al., “Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2)”, ORGANOMETALLICS, vol. 15, 1996, pp. 747-752.
Jutzi, P., Dahlhaus, J., Neumann, B., Stammler, H.-G.: Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2). ORGANOMETALLICS. 15, 747-752 (1996).
Jutzi, Peter, Dahlhaus, J, Neumann, B, and Stammler, Hans-Georg. “Synthesis and properties of group 13 element compounds (Al,Ga,In) with the polydentate 1-[2-(dimethylamino)ethyl]-2,3,4,5-tetramethylcyclopentadienyl ligand. X-ray crystal structures of (C(5)Me(4)CH(2)CH(2)NMe(2))MX(2) (MX(2)=AlMe(2), AlCl2, InCl2)”. ORGANOMETALLICS 15.2 (1996): 747-752.
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