Sodium–Potassium Alloy for the Reduction of Monoalkyl Aluminum(III) Compounds

The Clusters [Ma(ECp*)b] (M=Pd, Pt; E=Al, Ga, In): Structures, Fluxionality, and Ligand Exchange Reactions

“…The final H 2 O content in all solvents used was checked by Karl-Fischer-titration and did not exceed 5 ppm. [Pd 2 (dvds) 3 ], [30] AlCp*, [31,32] and GaCp* [33] were prepared according to recent literature methods. Elemental analyses were performed by the Microanalytical Laboratory of the Ruhr-Universität Bochum.…”

Transition Metal Chemistry of Low Valent Group 13 Organyls

“…Furthermore, the reactivity of homoleptic complexes M a (E I R) b is discussed, outlining the use of these new complex types in bond activation reactions. ( Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004) stabilised by coordination of Cp* [1Ϫ3] and the subsequent development of convenient synthetic procedures for AlCp* [4,5] and GaCp* [6,7] by H. Roesky and P. Jutzi, much work has been devoted to the coordination of these compounds to transition metal centres. [8,9] The E I R fragment is isolobal with CO and PR 3 , i.e.…”

Organometallic Access to Intermetallic θ‐CuE2 (E = Al, Ga) and Cu1–xAlx Phases

“…Elemental analyses were obtained by using Elementar Vario III atomic absorption spectrometer (AAS). The compounds [{Cu(mesityl) 5 }], [32] [CpCu(PMe 3 )], [43] [(quinuclidine)GaH 3 ], [44] and [(AlCp*) 4 ] [42] were synthesized according to literature reports. [(Me 3 N)AlH 3 ] was prepared by a modification of the procedure published by Jouet et al [41] from Me 3 NHCl (Aldrich) and LiAlH 4 (Acros) in toluene, and the product was purified by crystallization from a saturated toluene solution.…”

“…[41] the low-valent Al I compound is synthesized in four reaction steps, including the synthetically delicate reduction of Al III to Al I by the Na/K alloy. [42] However, in contrast, the alane is highly reactive and the reactions are very vigorous and less controlled. Attempts to prepare a colloidal solution of Al nanoparticles by using either gives the apparently pure θ-CuAl 2 phase, the products are contaminated with, thus far, an unidentified phosphane-based side product, which is quite difficult to remove.…”

“…[6,7] El-Boragy et al synthesized the hexagonal Cu 0.58 Al 0. 42 phase as well as the monoclinic Cu 0.51 Al 0.49 phase by heat treatment. [8] Gulay and Harbrecht investigated the phase changes in α-CuAl structures, for example, the orthorhombic ζ 1 -and ζ 2 -Cu 4 Al 3 phases.…”