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Licensed Unlicensed Requires Authentication Published by De Gruyter June 2, 2014

Darstellung und spektroskopische Charakterisierung von Methylnitro-closo-hexaboraten sowie Kristallstrukturen von cis-(Ph4As)2[B6H4(CH3)(NO2)],fac-(Ph4As)2[B6H3(CH3)(NO2)2] · CH3CN und mer-(Ph4P)2[B6H3(CH3)(NO2)C2] / Synthesis and Spectroscopic Characterization of Methylnitro-closo-hexaborates and Crystal Structures of cis -(Ph4As)2[B6H4(CH3)(NO2)],fac-(Ph4As)2[B6H3(CH3)(NO2)2] · CH3CN and mer-(Ph4P)2[B6H3(CH3)(NO2)C2]

  • C. Drewes and W. Preetz
From the journal Zeitschrift für Naturforschung B
https://doi.org/10.1515/znb-1999-0310

By electrochemical oxidation of (n-Bu4N)[B6H6(CH3)] in the presence of nitrite ions and of the base DBU in dichloromethane solution cis- and trans-[B6H4(CH3)(NO2)]2- , fac- [B6H3(CH3)(NO2)2]2- and mer-[B6H3(CH3)(NO2)c2]2- are formed. X-ray diffraction analyses have been performed on single crystals of cis-(Ph4As)2[B6H4(CH3O)(NO2)] (1) (monoclinic, space group P21/a, a = 20.063(2), b = 10.858(1), c =21.384(2) Å, β = 105.818(9)°, Z = 4), fac-(Ph4As)2[B6H3(CH3)(NO2)2] ·CH3CN (2) (triclinic, space group P1̄, a = 10.333(3), b = 10.695(3), c = 22.833(6) Å, α = 93.91(3), β = 96.79(3), γ = 104.56(2)°, Z = 2), and mer-(Ph4P)2[B6H3(CH3)(NO2)c2] (3) (triclinic, space group P1̄, a - 10.100(1), b = 10.402(3), c = 22.923(3) Å, α = 96.328(18), β = 89.928(12), γ = 107.963(16)°, Z = 2). The 11B NMR spectra and the vibrational spectra of the methylnitro compounds are discussed and compared with those of the monomethyl- and mononitro-closo-hexaborates.

Keywords : Methylnitrotetrahydro-closo-hexaborate(2-); Methyldinitrotrihydro-closo-hexaborate(2 -); Crystal Structure; 11B NMR Spectra; Vibrational Spectra
Received: 1998-11-11
Published Online: 2014-6-2
Published in Print: 1999-3-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

From the journal
Zeitschrift für Naturforschung B
Zeitschrift für Naturforschung B
Volume 54 Issue 3

Journal and Issue

Articles in the same Issue

Synthese, Struktur und Reaktivität von 3-Triorganostannyl-N-diphenylmethylen-alaninestern / Synthesis, Structure and Reactivity of 3-Triorganostannyl-N-diphenylmethylenealanine Esters
Metal Complexes of Biologically Important Ligands, CX. Orthopalladation of N-(Diphenylmethylene) Schiff Bases from Peptide Esters - C,N versus C,N,O Coordination - Crystal Structure of ClPd[C6H4(C6H5)C=N(Gly-L-Pro -L-Ala-OMe)-C,N,O] with cis/trans Peptide Bonds
Tris(ethyldimethylphenylammonium) nonahalogenodibismuthates(III)
2.4.6-Tri-tert-butylphenylaminofluorsilane und Lithium-bis(2,4,6-tri tert- butylphenyldifluorsilyl)amid - im Kristall ein Polymer / 2.4.6-Tri-tert-butylphenylaminofluorosilanes and Lithium-bis(2,4,6-tri-tert-butylphenyldifluorosilyl) amide - in the Crystal a Polymer
Komplexe zweier vierzehngliedriger Tetraazadibenzo-Makrocyclen. Strukturen eines freien Liganden und von Nickel(II)-, Kupfer(II)- und Zink(II)-Komplexen / Complexes of Two 14-Membered N4 Dibenzo Macrocycles. Crystal Structures of a Free Ligand and of Nickel(II), Copper(II) and Zinc(II) Complexes
Metallkomplexe mit 2,2'-Dipyridylamin als Liganden: Kristallstrukturen der Komplexe mit CdX2 (X = Cl, Br, I) und CuCN / Metal Complexes with 2,2'-Dipyridylamine as Ligand: Crystal Structures of the Complexes with CdX2 (X = Cl, Br, I) and CuCN
Copper Complexes with the Ligand [Cp2MoH2]
Synthesis and Spectroscopic Properties of 1,2-Diiminetricarbonylrhenium( I)chloride Complexes with Aliphatic Diimines (or 1,4-Diaza-1,3-butadienes) as Ligands
Hexahydro-closo-hexaborate as a Ligand in Coordination Compounds: A Second Polymorph of [Au2(μ-bis-η3-B6H6)(PPh3)2]
Darstellung und spektroskopische Charakterisierung von Methylnitro-closo-hexaboraten sowie Kristallstrukturen von cis-(Ph4As)2[B6H4(CH3)(NO2)],fac-(Ph4As)2[B6H3(CH3)(NO2)2] · CH3CN und mer-(Ph4P)2[B6H3(CH3)(NO2)C2] / Synthesis and Spectroscopic Characterization of Methylnitro-closo-hexaborates and Crystal Structures of cis -(Ph4As)2[B6H4(CH3)(NO2)],fac-(Ph4As)2[B6H3(CH3)(NO2)2] · CH3CN and mer-(Ph4P)2[B6H3(CH3)(NO2)C2]
Kristallstrukturen, Schwingungsspektren und Normalkoordinatenanalyse von cis- und trans-[ReCl4 (NCSe)(SeCN)]2- / Crystal Structures, Vibrational Spectra, and Normal Coordinate Analysis of cis- and trans-[ReCl4 (NCSe)(SeCN)]2-
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Kristallstruktur und thermische Phasenumwandlung von Tetramethylammoniumcyanid, (CH3)4N+CN- / Crystal Structure and Thermal Phase Transition of Tetramethylammonium Cyanide, (CH3)4N+CN-
Kristallstruktur von Hydrogenoxonium-Hexachloroantimonat-Bisacetonitril / Crystal Structure of Hydrogenoxonium Hexachloroantimonate-Bisacetonitrile
Synthese und Kristallstruktur von [Au(AuNCO)(AuPPh3)8]Cl / Synthesis and Crystal Structure of [Au(AuNCO)(AuPPh3)8]Cl
Metallkomplexe mit biologisch wichtigen Liganden, CXV. Addition von α-Aminosäureestern an [CpFe(CO)3]+: Carbamoylkomplexe Cp(OC)2Fe-C(O)NHCHRCO2R’ und Kristallstruktur von Cp(OC)2Fe-C(O)NHCH2CO2Et / Metal Complexes of Biologically Important Ligands, CXV. Addition of α-Amino Acid Esters to [CpFe(CO)3]+: Carbamoyl Complexes Cp(OC)2Fe-C(O)NHCHRCO2R' and Crystal Structure of Cp(OC)2Fe-C(O)NHCH2CO2Et
Structure of a Cs(18-crown-6)N(CN)2 · H2O Complex: Assembly of the Dimeric 2:2 Anion Paired Encapsulate by Means of μ2-Bridging Water Molecules
Direct Oxidative Deprotection of Trimethylsilyl and Tetrahydropyranyl Ethers Using Alumina-Supported lodobenzene Diacetate under Non-Aqueous Conditions
Untersuchungen zur Trifluoracetylierung der Methylderivate von Tryptamin und Serotonin mit verschiedenen Derivatisierungsreagentien: Synthesen, Spektroskopie sowie analytische Trennungen mittels Kapillar-GC / Trifluoroacetylation of Methylated -Derivatives of Tryptamine and Serotonine by Different Reagents: Synthesis, Spectroscopic Characterizations, and Separations by C apillary-Gas-Chromatography
Isoperadione: A New Triterpenoid from Salvia bucharica
Synthese von muscarinanalogen Epoxiden aus Campholenund Fencholenverbindungen / Synthesis of Muscarin Analogue Epoxides from Campholenic and Fencholenic Compounds
2.2..5.5,-Tetra-tert-butyl-3,3’-bis(trimethylsilyl)-1,1’-diazacobaltocen / 2.2..5.5,-Tetra-tert-butyl-3,3’-bis(trimethylsilyl)-1,1’-diazacobaltocene
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