1,720,995 research outputs found
Synthesis and structure of an anionic aluminium-nitrogen compound containing a ladder-shaped core
No full textAn X-ray crystallographic study of the aluminum-nitrogen compound C52H78Al4Li2N4 showed it to possess a ladder-shaped (AIN)(4) core. The mesityl ligands of the inner nitrogen atoms are each metallated by one of their neighbouring aluminium atoms, while on the outer negative charge is localised. The reported structure is the first tetrameric anionic Al-N compound
Derivatives of Group 4 metal amide chlorides and fluorides: Synthesis, structure and characterization of novel dimethyl and fluoro-chloro complexes
No full textReaction of MgMeBr with [MCl(2)L(2)] and [MCl(2)(eta-C(5)Me(5))L] [L = (2,6-(Pr2C6H3)-C-1)N(SiMe(3)), M = Zr or Hf] gave the corresponding dimethyl complexes [MMe(2)L(2)] (M = Zr 1a or Hf 1b) and [MMe(2)(eta-C(5)Me(5))L] (M = Zr 2a or Hf 2b). Reaction of [ZrF(2)L(2)] with AlMe(3) also yielded 1a. The structures of 1a and 2a have been determined by single-crystal X-ray crystallography. Upon reaction of 1 molar equivalent of SnMe(3)F with [MCl(2)L(2)] and [MCl(2)(eta-C(5)Me(5))L] mixed fluoro-chloro complexes, [MCl(F)L(2)] (M = Zr 3a or Hf 3b) and [MCl(F)(eta-C(5)Me(5))L] (M = Zr 4a or Hf 4b) were formed, via elimination of SnMe(3)Cl. The structure of 4a has been determined by single-crystal X-ray analysis
Convenient Access to Monosilicon Epoxides with Pentacoordinate Silicon
No full textGhadwal R, Sen SS, Roesky HW, et al. Convenient Access to Monosilicon Epoxides with Pentacoordinate Silicon. Angewandte Chemie International Edition. 2010;49(23):3952-3955
Synthesis and Structure of [{PhC(N<i>t</i>Bu)<sub>2</sub>}<sub>2</sub>Ge<sub>2</sub>(μ-S)<sub>2</sub>Cl<sub>2</sub>] and a Germanium Dithiocarboxylate Analogue
No full textSen SS, Ghadwal R, Kratzert D, Stern D, Roesky HW, Stalke D. Synthesis and Structure of [{PhC(NtBu)2}2Ge2(μ-S)2Cl2] and a Germanium Dithiocarboxylate Analogue. Organometallics. 2011;30(5):1030-1033
Ambiphilicity of Dichlorosilylene in a Single Molecule
No full textGhadwal R, Roesky HW, Merkel S, Stalke D. Ambiphilicity of Dichlorosilylene in a Single Molecule. Chemistry - A European Journal. 2010;16(1):85-88
Lewis Base Stabilized Dichlorosilylene
No full textGhadwal R, Roesky HW, Merkel S, Henn J, Stalke D. Lewis Base Stabilized Dichlorosilylene. Angewandte Chemie International Edition. 2009;48(31):5683-5686
Neutral Pentacoordinate Silicon Fluorides Derived from Amidinate, Guanidinate, and Triazapentadienate Ligands and Base-Induced Disproportionation of Si Cl to Stable Silylenes
No full textGhadwal R, Pröpper K, Dittrich B, Jones PG, Roesky HW. Neutral Pentacoordinate Silicon Fluorides Derived from Amidinate, Guanidinate, and Triazapentadienate Ligands and Base-Induced Disproportionation of Si Cl to Stable Silylenes. Inorganic Chemistry. 2011;50(1):358-364
Aminodimethylalanes (R(1)R(2)NAlMe(2)) as useful synthetic precursors of aminoalane difluorides using trimethyltin fluoride: Crystal structures of (2,6-i-Pr2C6H3)N(SiMe(3))AlMe(2) and (2,6-i-Pr2C6H3)N(SiMe(3))AlF2
No full textAminodimethylalanes R(1)R(2)NAlMe(2) (R(1) = 2,6-i-Pr2C6H3, 2,6-Me(2)C(6)H(3); R(2) = SiMe(3), Si(i-Pr)Me(2), Si(t-Bu)Me(2), Si(2,4,6-Me(3)C(6)H(2))Me(2)) are prepared in high yield via reaction of the respective amine R(1)R(2)NH with trimethylaluminum in n-hexane. Further reaction of (2,6-i-Pr2C6H3)N(SiMe(3))AlMe(2) with 2 equiv of trimethyltin fluoride in toluene affords the aminoalane difluoride (2,6-i-Pr2C6H3)N(SiMe(3))AlF2. An X-ray structural determination of (2,6-i-Pr2C6H3)N(SiMe(3))AlMe(2) shows it to be dimeric with bridging methyl and terminal amino groups. The aminoalane difluoride (2,6-i-Pr2C6H3)N(SiMe(3))AlF2 is trimeric with a six-membered alternating aluminum-fluorine ring. Terminal fluorine atoms are located above and below the ring. Reactions of aminoalanes R(1)R(2)NAlMe(2) with 2 equiv of trimethyltin fluoride in THF yield the monomeric THF adducts R(1)R(2)NAlF(2) . THF
Reactions of Stable N-Heterocyclic Silylenes with Ketones and 3,5-Di-tert-butyl-o-benzoquinone
No full textAzhakar R, Ghadwal R, Roesky HW, Hey J, Stalke D. Reactions of Stable N-Heterocyclic Silylenes with Ketones and 3,5-Di-tert-butyl-o-benzoquinone. Organometallics. 2011;30(14):3853-3858
N-Heterocyclic Carbene Stabilized Dichlorosilylene Transition-Metal Complexes of V(I), Co(I), and Fe(0)
No full textGhadwal R, Azhakar R, Pröpper K, Holstein JJ, Dittrich B, Roesky HW. N-Heterocyclic Carbene Stabilized Dichlorosilylene Transition-Metal Complexes of V(I), Co(I), and Fe(0). Inorganic Chemistry. 2011;50(17):8502-8508
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