A phosphorous ylide with a secondary P…O bond. The crystal structure of a-[6-furazano][3,4-b]-quinoxalinyl-a-carbethoxymethylenetriphenylphosphorane(butene-2,3,4-dimethylhexene-3)solvate
Abstract
The crystal structure of the title compound (FQTP hereafter) was determined from three-dimensional data of 2733 independent reflections. The cell constants, are a = 10.148(2) Å, b = 11.049(2) Å, c = 13.352(2) Å, α = 76.07(2)°, β = 82.98(2)°, γ = 78.18(2)°, V = 1418.05 Å3, Z = 2, space group P[unk], μ = 1 cm−1.
The structure was solved by direct methods and the positional and thermal parameters were refined by full-matrix least-squares calculations. The final R value was 0.064.
The furazanoquinoxalinyl group is planar with bonds and angles falling within the expected ranges. The carbanion atom has an sp2 hybridization and the bond length P = Csp2 (1.75 Å) indicates a major contribution of the resonance form Ph3[unk] – [unk] [unk] to the structure of this ylide. The triphenylphosphorane group has a distorted tetrahedral conformation around the P atom.
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- A phosphorous ylide with a secondary P…O bond. The crystal structure of a-[6-furazano][3,4-b]-quinoxalinyl-a-carbethoxymethylenetriphenylphosphorane(butene-2,3,4-dimethylhexene-3)solvate
- New data for 2-thiophenecarboxylic acid
- Elastic and thermoelastic properties of twelve adducts of betaine, (CH3)3NCH2COO, with H2O, HCl, HBr, HI, HNO3, H2SO4, H3PO3, H3PO4, 1,4-toluene sulfonic acid, MnCl2 and KBr
Articles in the same Issue
- Limits of isomorphous substitution of CnH2n + 2 chains in paraffins as a function of temperature
- Crystal structure analysis from powder diffraction data
- Intensitätsstatistik für Strukturen mit Überstruktureffekten
- Crystal and molecular structure of 10-methoxy-8, 8-dimethyl 2H,8H-benzo (1,2-b:5,4-b′-dipyron-2-one) (Luvangetin)
- Crystal structure of a complex of glycine with zinc chloride
- Ratio image seeking with multiple-wavelength X-ray diffraction data
- Verfeinerung der Kristallstruktur von Anthophyllit vom Ochsenkogel/Gleinalpe, Österreich
- Präzisionsbestimmung des Skalierungsfaktors für Relativwerte von Strukturamplituden mit Messung von Absolutintensitäten an Pulverpräparaten
- The X-ray revised stereochemistry of the hydroperoxide of atractyligenin
- Crystal structures of N-benzylcarbonyl-α-aminoisobutyric acid mono- and tripeptide methyl ester derivatives
- The crystal structure of U4Ni5Al18
- The crystal structure of Cs2Nd(N3)5
- The crystal structure of Tl5Te3 and its relationship to the Cr5B3 type
- A phosphorous ylide with a secondary P…O bond. The crystal structure of a-[6-furazano][3,4-b]-quinoxalinyl-a-carbethoxymethylenetriphenylphosphorane(butene-2,3,4-dimethylhexene-3)solvate
- New data for 2-thiophenecarboxylic acid
- Elastic and thermoelastic properties of twelve adducts of betaine, (CH3)3NCH2COO, with H2O, HCl, HBr, HI, HNO3, H2SO4, H3PO3, H3PO4, 1,4-toluene sulfonic acid, MnCl2 and KBr
