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Donor-stabilisierte Trisalkinylborane. Kristallstruktur von H5C5N–B(C≡CH)3 und Elektronenstruktur von B(C≡CH)3 / Donor-Stabilized Trisalkinylboranes. Crystal Structure of H5C5N–B (C≡CH)3 and Electronic Structure of B(C≡CH)3

  • Andreas Madema , Hans Pritzkow , Walter Siebert , Thomas Sommerfeld and Lorenz S. Cederbaum
From the journal Zeitschrift für Naturforschung B
https://doi.org/10.1515/znb-1997-1106

The synthesis and properties of donor-stabilized trisethinylborane compounds 1 - 3 (donor = pyridine, tetrahydrothiophene, tetrahydrofuran) and of the tris(trimethylsilylethinyl)boranediethylether adduct 4 are reported. Attempts to obtain donor-free trisorganylethinylboranes have failed. 11B NMR data of 1 - 4 and the X-ray structure analysis of 1 and 3 reveal that the boron atoms are four-coordinated. The B-C bonds in 1 are somewhat longer and the C≡C bonds shorter than in diborylacetylenes.

: Trisethinylborane Adducts; Substituted Trisethinylboranes; ab initio Calculations
Received: 1997-8-11
Published Online: 2014-6-2
Published in Print: 1997-11-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

From the journal
Zeitschrift für Naturforschung B
Zeitschrift für Naturforschung B
Volume 52 Issue 11

Journal and Issue

Articles in the same Issue

Oxotitan-Addukte mit Dimethylsulfoxid: [TiO(OSMe2)5]Cl2 und [Ti4O6(OSMe2)12]Cl4 · 5Me2SO · 1/2 H2O / Oxotitanium Compounds with Dimethylsulfoxide: [TiO(OSMe2)5]Cl2 and [Ti4O6(OSMe2)12]Cl4 · 5Me2SO · 1/2 H2O
Reaktionen von Cadmium-und Quecksilber(II)halogeniden und -pseudohalogeniden mit Kronenethern: Kristallstrukturen der Komplexe von Benzo-18-krone-6 mit CdX2 und HgX2 (X = CI, Br) und von Dibenzo-18-krone-6 mit Hg(CN)2 / Reactions of Cadmium and Mercury(II) Halides and Pseudohalides with Crown Ethers: Crystal Structures of the Complexes of Benzo-18-crown-6 with CdX2 and HgX2 (X = Cl, Br) and of Dibenzo-18-crown-6 with Hg(CN)2
[H2⊂(Mov2O4)6O4(μ2-OH)12(MoVIO3)4]6- and [Na⊂{(MoV2O4)3(μ2-OH)3H(PhP03)4}2]7-: A Further Example for the Validity of the Concept of Unit Construction in Polyoxometalate Chemistry
Kristallstruktur von Bromnitrat BrONO2 / Crystal Structure of Bromine Nitrate BrONO2
Crystal Structure of an Ammonium Dithiocyanatocuprate(I) Complex with 18-Crown-6, [NH4(18-Crown-6){Cu(NCS)2}] Obtained from Zero Valent Metal
Donor-stabilisierte Trisalkinylborane. Kristallstruktur von H5C5N–B(C≡CH)3 und Elektronenstruktur von B(C≡CH)3 / Donor-Stabilized Trisalkinylboranes. Crystal Structure of H5C5N–B (C≡CH)3 and Electronic Structure of B(C≡CH)3
Synthese und Kristallstruktur der Benzyltriphenylphosphonium-bromide: [C6H5-CH2P(C6H5)3]+Br-CH2Cl2 und [C6H5-CH2P(C6H5)3]+Br3- / Synthesis and Crystal Structures of (Benzyl)triphenylphosphonium Bromides, [C6H5-CH2P(C6H5)3]+Br-CH2Cl2 and [C6H5-CH2P(C6H5)3]+Br3-
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Planare CuO4-Polygone und eine einseitig offene Te4+O3-Koordination in SrCuTe2O6 / Planar CuO4 Polygons and a One-Sided Open Te4+O3 Coordination in SrCuTe2O6
Contribution to the Chemistry of Boron, 241. Improved Synthesis of 2,4,6-Trichloroborazine
Die Kristallstrukturen der isotypen Erdalkalimetall-Nitridowolfra- mat(VI)-Nitrid-Oxide Ca51[WN4]12N8O3 und Sr51[WN4]12N8O3 / The Crystal Structures of the Isotypic Alkaline Earth-Nitridotungstate(VI)- Nitride-OxidesCa51[WN4]12N8O3 and Sr51[WN4]12N8O3
Oxyfunctionalization of Allyl Thioether Ruthenium Complexes with Dimethyldioxirane
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Synthesis of N-(2-Phenyl-cyclopropyI)-Substituted Nucleoside Analogues
Syntheses of Anomeric Pairs of New C-Nucleosides via 1,3-Dipolar Cycloaddition Reaction, Part I
Syntheses of Anomeric Pairs of New C-Nucleosides via 1,3-Dipolar Cycloaddition Reaction, Part II
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Rb[B2P2O8(OH)] und Cs[B2P2O8(OH )]: Die ersten Borophosphate mit dreidimensional vernetzter Anionenteilstruktur /Rb[B2P2O8(OH)] and Cs[B2P2O8(OH )]: The First Borophosphates with a Threedimensional Anionic Tetrahedral Structure
Asymmetrische Katalysen, 116. Triaza-und Tetraaza-Makrocyclen mit chiralen "pendant arms" in der enantio- selektiven Cyclopropanierung / Asymmetrie Catalyses, 116. Triaza and Tetraaza Macrocycles with Chiral Pendant Arms in the Enantioselective Cyclopropanation
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