Synthesis of Gallane‐Amine adducts as potential precursors for GaAs and (AlGa)as MOVPE processes and the crystal structure of the {gallane · 1,3‐bis(dimethylamino)propane} adduct H3Ga · N(CH3)2(CH2)3N(CH3)2

Lorberth, Jörg; Dorn, R.; Wočadlo, Sigrid; Massa, Werner; Göbel, E. O.; Marschner, T.; Protzmann, H.; Zsebök, O.; Stolz, W.

doi:10.1002/adma.19920040911

Cited by 19 publications

(10 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sole gallane complex featuring an unequivocally penta-coordinated metal atom and for which the crystal structure has been determined is that formed by N,N,NЈ,NЈ-tetramethylpropylenediamine; this has a polymeric structure of the type C and features much longer Ga-N distances averaging 2.36 Å. 42 As in the case of 1, the molecules of 2 are packed so as to form a layered structure; Fig. 4 affords a view of one such layer.…”

Section: Resultsmentioning

confidence: 99%

Oligomeric structures of the crystalline dimethylamine adducts Me2(H)N·MH3 (M = Al or Ga) and the dimethylamido derivative [Me2NGaH2]3

Tang

Coxall

Downs

et al. 2001

J. Chem. Soc., Dalton Trans.

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Oligomeric structures of the crystalline dimethylamine adducts Me2(H)N·MH3 (M = Al or Ga) and the dimethylamido derivative [Me2NGaH2]3

Tang

Coxall

Downs

et al. 2001

J. Chem. Soc., Dalton Trans.

View full text Add to dashboard Cite

“…Zig-zag chain polymers with 1,3-bis-(dimethylamino)propane were previously reported for AlH 3 17 and GaH 3 . 18 Other 1D polymers include catena complexes of AlCl 3 and GaCl 3 with the O-containing bidentate donor dioxane. 19,20 Interestingly, the complex AlCl 3 ·2diox adopts the polymeric structure (AlCl 3 ·diox) ∞ ·diox with "free" dioxane solvate molecules in between the polymeric chains.…”

Section: Papermentioning

confidence: 99%

Structural and thermodynamic properties of molecular complexes of aluminum and gallium trihalides with bifunctional donor pyrazine: decisive role of Lewis acidity in 1D polymer formation

et al. 2013

View full text Add to dashboard Cite

Solid state structures of group 13 metal halide complexes with pyrazine ( pyz) of 2 : 1 and 1 : 1 composition have been established by X-ray structural analysis. Complexes of 2 : 1 composition adopt molecular structures MX 3 ·pyz·MX 3 with tetrahedral geometry of group 13 metals. Complexes of AlBr 3 and GaCl 3 of 1 : 1 composition are 1D polymers (MX 3 ·pyz) ∞ with trigonal bipyramidal geometry of the group 13 metal, while the weaker Lewis acid GaI 3 forms the monomeric molecular complex GaI 3 ·pyz, which is isostructural to its pyridine analog GaI 3 ·py. Tensimetry studies of vaporization and thermal dissociation of AlBr 3 ·pyz and AlBr 3 ·pyz·AlBr 3 complexes have been carried out using the static method with a glass membrane null-manometer. Thermodynamic characteristics of vaporization and equilibrium gas phase dissociation of the AlBr 3 ·pyz complex have been determined. Comprehensive theoretical studies of (MX 3 ) n ·( pyz) m complexes (M = Al, Ga; X = Cl, Br, I; n = 1, 2; m = 1-3) have been carried out at the B3LYP/ TZVP level of theory. Donor-acceptor bond energies were obtained taking into account reorganization energies of the fragments. Computational data indicate that the formation of (MX 3 ·pyz) ∞ polymers with coordination number 5 is only slightly more energetically favorable than the formation of molecular complexes of type MX 3 ·pyz for X = Cl, Br. It is expected that on melting (MX 3 ·pyz) ∞ polymers dissociate into individual MX 3 ·pyz molecules. This dovetails with low melting enthalpies of the (MX 3 ·pyz) ∞ complexes.Polymer stability decreases in the order AlCl 3 > AlBr 3 > GaCl 3 > AlI 3 > GaBr 3 > GaI 3 . For MI 3 ·pyz complexes computations predict that the monomeric structure motif is more energetically favorable compared to the catena polymer. These theoretical predictions agree well with the experimentally observed monomeric complex GaI 3 ·pyz in the solid state. Thus, the Lewis acidity of the group 13 halides may play a decisive role in the formation of 1D polymeric networks.

show abstract

“…Previously reported reaction of H 3 Ga(NMe 3 ) with a symmetric diamine, Me(H)NCH 2 CH 2 N(H)Me, afforded a gallane-rich compound, H 5 Ga 3 {[N(Me)CH 2 ] 2 } 2 , due to elimination of all the protons of the amine groups . Tertiary diamines, Me 2 NCH 2 CH 2 NMe 2 or Me 2 NCH 2 CH 2 CH 2 NMe 2 , reacted with H 3 Ga(NMe 3 ) to give gallane adducts, H 3 GaNMe 2 CH 2 CH 2 N(Me 2 )GaH 3 11,21 and H 3 GaNMe 2 CH 2 CH 2 CH 2 NMe 2 . Another group of gallane derivatives containing symmetric diamido ligands are those derived from 1,4-dialkyl-1,4-diazabutadiene (RNCHCHNR). ,, Compounds with oxygen−nitrogen or sulfur−nitrogen ligands, including [MeN(CH 2 CH 2 O) 2 GaH] 2 , (Me 2 NCH 2 CH 2 OGaH 2 ) 2 , and HGa(SCH 2 CH 2 NEt 2 ) 2 are known.…”

Section: Introductionmentioning

confidence: 99%

Gallane Complexes with Amido−Amine Ligands

2000

View full text Add to dashboard Cite

Gallane complexes bearing amido-amine ligands -N(R)CH2CMe2CH2NMe2 [R = H or SiMe3 (TMS)], (H2Ga[N(H)CH2CMe2CH2NMe2])2, 1, H2Ga[N(TMS)CH2CMe2CH2NMe2], 2, (H(Cl)Ga[N(H)CH2CMe2CH2NMe2])2, 3, ([(TMS)2N](H)Ga[N(H)CH2CMe2CH2NMe2])2, 4, and HGa[N(TMS)CH2CMe2CH2NMe2]2, 5, were synthesized from the reactions of the quinuclidine adducts of mono- and dichlorogallane with the corresponding lithium amides. Structural determinations of compounds 1, 3, and 4 showed all were dimeric with bridging amido groups. Rather than bond to gallium the tertiary amine groups in 1 and 4 were hydrogen-bonded to the amino N-H. In the structure of compound 3 the amine group occupied an axial position in the trigonal bipyramidal geometry of the five-coordinate gallium. The results were rationalized in terms of the steric and electronic properties of gallium ligands.

show abstract

Synthesis of Gallane‐Amine adducts as potential precursors for GaAs and (AlGa)as MOVPE processes and the crystal structure of the {gallane · 1,3‐bis(dimethylamino)propane} adduct H₃Ga · N(CH₃)₂(CH₂)₃N(CH₃)₂

Cited by 19 publications

References 16 publications

Oligomeric structures of the crystalline dimethylamine adducts Me2(H)N·MH3 (M = Al or Ga) and the dimethylamido derivative [Me2NGaH2]3

Oligomeric structures of the crystalline dimethylamine adducts Me2(H)N·MH3 (M = Al or Ga) and the dimethylamido derivative [Me2NGaH2]3

Structural and thermodynamic properties of molecular complexes of aluminum and gallium trihalides with bifunctional donor pyrazine: decisive role of Lewis acidity in 1D polymer formation

Gallane Complexes with Amido−Amine Ligands

Contact Info

Product

Resources

About