Some Reactions of Organoaluminum Compounds With Nitrogen-Containing Bases

Fetter, Neil R.; Bartocha, Bodo; Brinckman, F. E.; Moore, Donald W.

doi:10.1139/v63-186

Cited by 39 publications

(18 citation statements)

References 3 publications

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“…Several other workers have proposed chelate structures for complexes of this type (3,6,7, 1 I). However, in the present systems, it is felt that either an intramolecular rearrangement could alternate the coordinated nitrogen atom via a transition state involving the fivecoordinate arrangement proposed by Fetter et al (4), or, more likely, intermolecular exchange via a rapid dissociative mechanism could take place, which would better explain the observed n.m.r. spectra especially for those complexes involving acceptor atoms which show little tendency for five-coordination in this type of compound.…”

Section: Resultsmentioning

confidence: 62%

“…In all cases proton Table 1). Fetter et al (4) have prepared the aluminum compound Me,Al.Me,NCH,NMe, and report that it is associated in benzene solution (degree of association 1.38). On the basis of their n.m.r.…”

Section: Resultsmentioning

confidence: 99%

“…Fetter el al. (4,5 ) have investigated the formation of complexes between Me3A1 and the compounds Me,N(CH,),,NMe, (where n = 0, 1, 2, or 3). They proposed that 1 : 1 complexes are formed when the nitrogen atoms of the ditert~ary base are separated by one or no intervening methylene groups, while 2:l complexes are formed when the separation is by two or more methylene groups.…”

Section: Introductionmentioning

confidence: 99%

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Complexes of Group III trimethyls with diamines

Storr¹,

Thomas²

1970

Can. J. Chem.

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Direct combination of the Lewis acids, Me3M (where M = B, Al, Ga, or In), and the diamines, Me2N-(CH2).NMe2 (where n = 1 , 2 , or 3) has given two series of complexes. A range of 1 :I complexes can be isolated w~t h Me2NCH2NMe2 as ligand. With the other diam~nes, use of a 1 :I molar ratlo of reactants yields crystalline 2:1 complexes with two moles of Me3M per mole of I~gand. Excluding the reactlon between Me3B and Me2NCH2NMe2, 2:1 complexes can be isolated by reacting the varlous Lewrs acids with the appropriate molar quantlty of the diam~nes. The complexes have been charactenzed by i.r. and proton n.m.r. spectroscopy and molecular weight measurements.A number of complexes of Me3Ga w~t h methyl substituted ethylenediamines have been prepared and the effects of substitution on the n~trogen ligand atoms studied. Pyrolysis of these complexes has demonstrated the ready elimination of methane and has resulted in the formation of condensed Ga-N specles.

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Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Complexes of Group III trimethyls with diamines

Storr¹,

Thomas²

1970

Can. J. Chem.

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“…Although there has been no systematic study of trends in the properties of compounds based on the covalently bonded skeletal arrangements A-N-N and A-N-N-A, where A represents a metalloidal atom, and N-N the hydrazine moiety, a substantial number of such compounds are now known, viz. hydrazino boranes (12)(13)(14), alanes (15,16), silanes (17), phosphines (IS), phosphine oxides (19,20), and arsines (21).…”

Section: Discussionmentioning

confidence: 99%

Phosphinohydrazines. Reactions of hydrazine and alkylhydrazines with substituted phosphines

Peterson¹,

Wilson²

1968

Can. J. Chem.

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Reactions between hydrazine or N,N-dimethylhydrazine and (CF3)2PI, (CF3)2PCl, (CF3)3P, and (CF3)2PNMe2 have been further investigated as synthetic routes to phosphinohydrazine compounds. The new compound N,N-dimethyl,N′-bis(trifluoromethyl)phosphinohydrazine (m.p. 40.45°, b.p. 112° extrapolated) is described, and instability of [(CF3)2P]xN2H4−x systems with respect to elimination of fluoroform is inferred.

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“…This observation is in accordance with reports in the literature. 15,40 Reactions with N 2 H 4 should therefore be carried out with the greatest care.…”

Section: Forum Articlementioning

confidence: 99%

Aluminum, Gallium, and Indium Hydrazides and the Generation of Oligonuclear Element-Nitrogen Cages: Molecular Intermediates on the Way to Element Nitrides

2011

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Organoelement aluminum, gallium, and indium hydrazides, [R(2)ENHN(H)R'](2) (E = Al, Ga, In), are easily available from the corresponding trialkylelement compounds, ER(3), and hydrazines, H(2)NN(H)R', via elimination of the respective hydrocarbons. Their diverse molecular structures are derived from four-, five-, or six-membered element-nitrogen heterocycles. Their stepwise thermolysis under carefully controlled conditions was shown to proceed along one of several different well-defined routes. Cleavage of the N-N bonds afforded aluminum or gallium imides, [REN(H)](n), with up to eight metal atoms in a single molecule, while preservation of the N-N bonds led to interesting cages in which intact N-N bonds of formally dianionic hydrazinediides bridge the metal atoms via their two adjacent donor atoms. Further thermolysis yielded the amorphous element nitrides via the gradual degradation of the hydrazinediide groups. Several intermediates have been isolated and provided insight in the course of these reactions. A particularly interesting compound was one that features a hydrazinetetraide unit, [N-N](4-), that is stabilized by coordination to six gallium atoms.

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Some Reactions of Organoaluminum Compounds With Nitrogen-Containing Bases

Cited by 39 publications

References 3 publications

Complexes of Group III trimethyls with diamines

Complexes of Group III trimethyls with diamines

Phosphinohydrazines. Reactions of hydrazine and alkylhydrazines with substituted phosphines

Aluminum, Gallium, and Indium Hydrazides and the Generation of Oligonuclear Element-Nitrogen Cages: Molecular Intermediates on the Way to Element Nitrides

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