Syntheses and structures of a four-co-ordinate monomeric dialkylaluminium complex and a cyclic trimeric alkylaluminium propeller complex with a bidentate amide ligand, Al(PhNCH2CH2NH2)Me2and [Al(µ-PhNCH2CH2NH)Me]3
- 1 January 1995
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 14,p. 2425-2429
- https://doi.org/10.1039/dt9950002425
Abstract
The reaction of AlMe3 with N-phenylethylenediamine in toluene at 0 °C yielded a mononuclear complex Al(PhNCH2CH2CH2NH2)Me21 as the major product and a trinuclear cyclic complex [Al(µ-PhNCH2CH2NH)Me]32 as a minor product. The trinuclear complex was obtained as the major product when the reaction was carried out at 25 °C. The crystal structure of 1 and a cis isomer of 2, where all three methyl groups on the aluminium centres occupy the cis-axial positions of a chair conformation, have been determined by single-crystal X-ray diffraction analysis. Compound 1 can be converted into 2 either by heating or by allowing the solution to stand at 23 °C for a few days. Crystal data: 1, orthorhombic, space group P212121, a= 10.304(3), b= 13.172(5), c= 8.552(3)Å, Z= 4; 2, trigonal, space group P(no. 147, hexagonal setting), a=b= 16.441(7), c= 11.184(3)Å, Z= 2.Keywords
This publication has 21 references indexed in Scilit:
- Strukturänderung beim Organoaluminiumkomplex [Al4(μ3‐8‐chinolylimido)2(CH3)8] durch Oxidation mit Sauerstoff zu [Al4(μ3‐8‐chinolylimido)2(CH3)7(μ‐OCH3)]Angewandte Chemie, 1994
- Neopentyl-based aminoalanes. Syntheses and molecular structures of [Neo2Al-N(H)R]2 (Neo = neopentyl (CH2CMe3); R = adamantyl, t-Bu, Ph(i-Pr)2, Ph' (2-biphenyl))Organometallics, 1992
- Syntheses, structures, and isomerization processes of dialkylaluminum silylamido complexesOrganometallics, 1992
- Reactions of trimethylaluminum or trimethylgallium with bulky primary amines: structural characterization of the thermolysis productsJournal of the American Chemical Society, 1991
- Synthesis, structure, and pyrolysis of organoaluminum amides derived from the reactions of trialkylaluminum compounds with ethylenediamine in a 3:2 ratioInorganic Chemistry, 1991
- N,N'-Bis(triethylaluminum)ethylenediamine- and N,N'-Bis(trimethylaluminum) ethylenediamine-derived organometallic precursors to aluminum nitride: syntheses, structures, and pyrolysesChemistry of Materials, 1990
- Formation and molecular structure of a novel six-coordinate aminoalane complex {[(CH3)3Si]2Al(NH2)2}3AlInorganic Chemistry, 1988
- An unusual trigonal-bipyramidal coordination of aluminum by an open-chain tetradentate amine. Synthesis and molecular structure of [Al(CH3)][C8H19N4][Al(CH3)2]Organometallics, 1988
- The organometallic coordination chemistry of aluminum. Synthesis and molecular structure of [(CH3)Al]2[C8H20N6][Al(CH3)2]2: a novel example of a neutral organoaluminum complex containing two five-coordinate aluminum atoms in square-pyramidal environmentsJournal of the American Chemical Society, 1987
- The chemistry and the stereochemistry of poly(N-alkyliminoalanes) : XVIII. The preparation and crystal structure of the pentamer {(HAlNi-Pr)2(H2AlNHi-Pr)2[HAlNCH(CH3)CH2N(CH3)2]} and the crystal structure of [HAlN(CH2)3N(CH3)2]6 · 2 LiHJournal of Organometallic Chemistry, 1981