Alkynyl Compounds of the Rare-earth Metals

Nieland A, Lamm J-H, Mix A, Neumann B, Stammler H-G, Mitzel NW (2014)
Zeitschrift für anorganische und allgemeine Chemie 640(12-13): 2484-2491.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Conversion of the rare-earth tetramethylaluminates [Ln(AlMe4)(3)] with phenylacetylene afforded the homoleptic alkynylaluminates [Ln{(mu-C CPh)(2)AlMe2}(3)] [Ln = Ce (1), Er(2)]. The reaction of five equivalents of phenylacetylene with the yttrium aluminate [Y(AlMe4)(3)] afforded [Y{(mu-C CPh)AlMe3}{(mu-C CPh)(2)AlMe2}(2)] (3). The cationic yttrium complex [(TMTAC)(2)YMe2][AlMe4] (4) (TMTAC = 1,3,5-trimethyl-1,3,5triazacyclohexane) was reacted with phenylacetylene to give the product [(TMTAC)(2)Y(C CPh)(2)][Me2Al(C CPh)(2)] (5), in which two methyl groups of each, the cation and the anion, were substituted by phenylacetylide groups. Under the same conditions as for the synthesis of compound 5, the holmium analogue reveals different reactivity in forming a neutral alkynyl complex [(TMTAC)(2)Ho(C CPh)(3)] (6). The introduction of 1,8-diethynylanthracene to 4 leads to a structural very similar complex [(TMTAC)(2)Ho(mu-1,8-diethynylanthracene)(3)] (7) and offers the same reactivity as observed for the synthesis of 6. All compounds were characterized by X-ray diffraction experiments. Compounds 1-3 and 5 were also characterized by NMR and elemental analyses.
Stichworte
ligands; Nitrogen; Cations; Tetramethylaluminates; Rare-earth metals; Acetylides
Erscheinungsjahr
2014
Zeitschriftentitel
Zeitschrift für anorganische und allgemeine Chemie
Band
640
Ausgabe
12-13
Seite(n)
2484-2491
ISSN
0044-2313
Page URI
https://pub.uni-bielefeld.de/record/2707890

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Nieland A, Lamm J-H, Mix A, Neumann B, Stammler H-G, Mitzel NW. Alkynyl Compounds of the Rare-earth Metals. Zeitschrift für anorganische und allgemeine Chemie. 2014;640(12-13):2484-2491.
Nieland, A., Lamm, J. - H., Mix, A., Neumann, B., Stammler, H. - G., & Mitzel, N. W. (2014). Alkynyl Compounds of the Rare-earth Metals. Zeitschrift für anorganische und allgemeine Chemie, 640(12-13), 2484-2491. doi:10.1002/zaac.201400158
Nieland, A., Lamm, J. - H., Mix, A., Neumann, B., Stammler, H. - G., and Mitzel, N. W. (2014). Alkynyl Compounds of the Rare-earth Metals. Zeitschrift für anorganische und allgemeine Chemie 640, 2484-2491.
Nieland, A., et al., 2014. Alkynyl Compounds of the Rare-earth Metals. Zeitschrift für anorganische und allgemeine Chemie, 640(12-13), p 2484-2491.
A. Nieland, et al., “Alkynyl Compounds of the Rare-earth Metals”, Zeitschrift für anorganische und allgemeine Chemie, vol. 640, 2014, pp. 2484-2491.
Nieland, A., Lamm, J.-H., Mix, A., Neumann, B., Stammler, H.-G., Mitzel, N.W.: Alkynyl Compounds of the Rare-earth Metals. Zeitschrift für anorganische und allgemeine Chemie. 640, 2484-2491 (2014).
Nieland, Anja, Lamm, Jan-Hendrik, Mix, Andreas, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. “Alkynyl Compounds of the Rare-earth Metals”. Zeitschrift für anorganische und allgemeine Chemie 640.12-13 (2014): 2484-2491.