The Experts below are selected from a list of 108 Experts worldwide ranked by ideXlab platform
Marcus Warchhold - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of the phosphorus Halide Boron Halide complexes x3pby3 x cl br i y br i by 31p mas nmr ir and raman spectroscopy and the crystal structure of br3pbbr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
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Synthesis and Characterization of the Phosphorus Halide−Boron Halide Complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) by 31P MAS NMR, IR, and Raman Spectroscopy and the Crystal Structure of Br3PBBr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
Christoph Aubauer - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of the phosphorus Halide Boron Halide complexes x3pby3 x cl br i y br i by 31p mas nmr ir and raman spectroscopy and the crystal structure of br3pbbr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
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Synthesis and Characterization of the Phosphorus Halide−Boron Halide Complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) by 31P MAS NMR, IR, and Raman Spectroscopy and the Crystal Structure of Br3PBBr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
Thomas M Klapotke - One of the best experts on this subject based on the ideXlab platform.
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on the bonding structure and thermodynamics of phosphorus Halide Boron Halide complexes x 3 p by 3 x y cl br i
Journal of Molecular Structure-theochem, 2001Co-Authors: Ch Aubauer, Thomas M Klapotke, A SchulzAbstract:Abstract Donor–acceptor complexes X 3 P·BY 3 (X, Y=Cl, Br, I) and their fragments have been studied using density functional (B3LYP) and ab initio methods (MP2, CCSD(T)) with effective core potentials. The bonding, charge transfer and structure of all X 3 P·BY 3 is discussed on the basis of natural bond orbital (NBO) analysis. The estimated free molecular enthalpies of dissociation indicate that all X 3 P·BY 3 represent thermodynamically labile species which are stabilized by the lattice energies in the solid state. The total distortion energy increases in accordance with the decreasing complex dissociation enthalpy. With regard to halogen exchange between the PX 3 and BY 3 moiety in X 3 P·BY 3 (g) adducts, only the complexes where Y=X and where X represents a heavier halogen than Y are thermodynamically stable.
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synthesis and characterization of the phosphorus Halide Boron Halide complexes x3pby3 x cl br i y br i by 31p mas nmr ir and raman spectroscopy and the crystal structure of br3pbbr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
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Synthesis and Characterization of the Phosphorus Halide−Boron Halide Complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) by 31P MAS NMR, IR, and Raman Spectroscopy and the Crystal Structure of Br3PBBr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
Heinrich Noth - One of the best experts on this subject based on the ideXlab platform.
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Behavior of 1,3-Di(tert-butyl)-2,4-bis(tetramethylpiperidino)-1,3,2,4-diphospha- diboretane towards Boron Halides and Adduct Formation of a Bicyclo[1.1.0]diphosphadiboretane with Tris(pentafluorophenyl)borane [1]
Zeitschrift für Naturforschung B, 2006Co-Authors: Klaus Knabel, Heinrich Noth, Robert T. PaineAbstract:While the diphosphadiboretane (tBuP=Btmp) 2 , 1, reacts with Boron triHalides BX 3 (X = Cl, Br, I) with BN cleavage producing a number of unidentifiable products, a new tricyclic BP ring system 2, containing B 3 P 3 , PB 2 C 2 and C 6 rings, results from the combination of PhBCl 2 and 1. B-Chlorocatecholborane and 1 give access to the diborylphosphane 3, tmpBCl-PtBu-cat (cat = C 6 H 4 O 2 B). This shows that the selectivity of the reactions increases as the Lewis acidity of Boron Halide decreases. The structure of compounds 2 and 3 were determined by X-ray structure analysis. The bicyclic (tmpBP) 2 4 forms no adducts with Mel, CF 3 SO 2 Me or Ph 3 C(SnCl 5 ). However, it adds B(C 6 F 5 ) 3 to give 10, the first BX 3 adduct of this bicycle that is fully characterized including its molecular structure.
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Boron-metal compounds. IX dialkylamino borine iron tetracarbonyls
Inorganica Chimica Acta, 2001Co-Authors: Günter Schmid, Wolfgang Petz, Heinrich NothAbstract:Abstract The reaction of Fe2(CO)9 with Boron bromide or Boron iodide yields Fe(CO)5, Fe(CO)4X2 and [Fe(CO)4BX]n (X Br, J). The same type of products is formed if R2NBBr2 (R CH3, C2H5) is employed as the Boron Halide; the dialkylamino group remains attached to the Boron. Besides nonvolatile [Fe(CO)4BNR2]n, volatile monomeric (CO)4FeBNR2 is obtained in low yields, containing the unusual ligand R2NB. Some spectroscopic properties of the novel coordination compounds are reported and some of heir chestry is discussed.
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synthesis and characterization of the phosphorus Halide Boron Halide complexes x3pby3 x cl br i y br i by 31p mas nmr ir and raman spectroscopy and the crystal structure of br3pbbr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
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Synthesis and Characterization of the Phosphorus Halide−Boron Halide Complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) by 31P MAS NMR, IR, and Raman Spectroscopy and the Crystal Structure of Br3PBBr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
Gunter Engelhardt - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of the phosphorus Halide Boron Halide complexes x3pby3 x cl br i y br i by 31p mas nmr ir and raman spectroscopy and the crystal structure of br3pbbr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.
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Synthesis and Characterization of the Phosphorus Halide−Boron Halide Complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) by 31P MAS NMR, IR, and Raman Spectroscopy and the Crystal Structure of Br3PBBr3
European Journal of Inorganic Chemistry, 2000Co-Authors: Christoph Aubauer, Gunter Engelhardt, Thomas M Klapotke, Heinrich Noth, Axel Schulz, Marcus WarchholdAbstract:The phosphorus Halide−Boron Halide complexes X3PBY3 (X = Cl, Br, I; Y = Br, I) were prepared and characterized by Raman and IR spectroscopy. Density functional theory (B3LYP) was applied to calculate structural and vibrational data. Assignments of the vibrational normal modes for these Lewis acid−base adducts were made on the basis of their Raman and IR spectra in comparison with computational results. The compounds Cl3PBBr3, Br3PBBr3, I3PBBr3, and I3PBI3 were also studied by solid-state 31P MAS NMR spectroscopy. Second-order 31P−79,81Br dipolar coupling effects were observed in the 31P MAS NMR spectrum of Br3PBBr3. The molecular structure of Br3PBBr3 was determined by X-ray diffraction.