Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Haiko Beckmann"'
1
Synthesis, crystal structure, and NMR spectroscopy of a 1,3,2?5,4?5-oxathiadiphosphetane
Autor: Klaus Klostermann, Gisbert Gromann, Gisela Ohms, Volker Kaiser, Kerstin Krger, Haiko Beckmann
Publikováno v: Heteroatom Chemistry. 7:111-118
From the crude product of the synthesis of the dithiadiphosphetane [RP(S)S]2 (with R = 2,4,6-iPr3C6H2), the trans-oxathiadiphosphetane has been isolated, C30H40OP2S3. X-ray structure analysis and mass spectroscopic investigations give unequivocal evi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f17e434bd385a41d033a03a2e89709c7
https://doi.org/10.1002/(sici)1098-1071(199603)7:2<111::aid-hc2>3.0.co
Zobrazit plný text záznamu
2
Crystal structure, nuclear magnetic resonance spectroscopy and individual gauge for localised orbitals (IGLO) calculations of C6H4P2S6, a new tetrathiadiphosphorinane, and comparison with related P–S compounds
Autor: Gisbert Grossmann, Kerstin Krüger, Haiko Beckmann, Otto Rademacher, Gisela Ohms
Publikováno v: J. Chem. Soc., Dalton Trans.. :2797-2803
The reaction of 1,2-diphosphinobenzene with sulfur yielded a new constitution of a tetrathiadiphosphorinane ring: 4,6-(1,2-phenylene)-4,6-dithioxo-1,2,3,5,4λ5,6λ5-tetrathiadiphosphorinane the crystal structure of which has been determined, orthorho
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45e22e4769aec7ec53342c1f95bac3bb
https://doi.org/10.1039/dt9950002797
Zobrazit plný text záznamu
3
New perthiophosphonic acid anhydrides and the direct indication of the dimer-monomer equilibrium. NMR and X-Ray Studies
Autor: Haiko Beckmann, Gisela Ohms, Joachim Sieler, Gisbert Großmann
Publikováno v: Heteroatom Chemistry. 5:73-83
New perthiophosphonic acid anhydrides (R-PS2)n with R = 2,4,6-tri-iso-propylphenyl and 2,4-di-tert-butyl-6-methylphenyl have been prepared. For the latter case, the isolation of the monomer (n = 1), the 2,4-di-tertbutyl-6-methylphenyl-dithioxophospho
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3dee5c77afba7739e754b593353b382b
https://doi.org/10.1002/hc.520050113
Zobrazit plný text záznamu
4
ChemInform Abstract: Dithiadiphosphetanes. NMR Studies in Solution and Solid State
Autor: Haiko Beckmann, G. Ohms, Gisbert Grossmann
Publikováno v: ChemInform. 23
Solid state NMR spectra and solution spectra of dithiadiphosphetanes [RP(S)S]2 are compared and discussed with respect to configuration and conformation of these compounds.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d2b2058dac018e60f979d2f2e76f083d
https://doi.org/10.1002/chin.199224225
Zobrazit plný text záznamu
6
31P13C shift correlated 2D NMR spectra of the AA'X spin system: Determination of PP coupling constants and their relative signs in symmetrical diphosphonates
Autor: Gisela Ohms, Gisbert Grossmann, Haiko Beckmann
Publikováno v: Magnetic Resonance in Chemistry. 30:860-864
The indirect determination of P-P coupling constants and their relative signs in some symmetrical diphosphonates by 31 P- 13 C 2D NMR is introduced. Advantages and disadvantages of this method and others for the determination of the coupling constant
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41cfe2f7c3b70401a542b4427580476c
https://doi.org/10.1002/mrc.1260300912
Zobrazit plný text záznamu
7
Dithiadiphosphetanes. NMR Studies in Solution and Solid State
Autor: Haiko Beckmann, Gisbert Grossmann, G. Ohms
Publikováno v: Phosphorus, Sulfur, and Silicon and the Related Elements. 65:127-130
Solid state NMR spectra and solution spectra of dithiadiphosphetanes [RP(S)S]2 are compared and discussed with respect to configuration and conformation of these compounds.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c45520682bd6fa35bc3208683fef4cb2
https://doi.org/10.1080/10426509208055335
Zobrazit plný text záznamu
9
Chalcogeno Methylene Phosphoranes 2,4,6-tBu3C6H2-P(=X)=C(Sime3)2, X = O, S, Se Crystal Structure, 31P CP Mas NMR and IGLO Calculations
Autor: M. Niegeri, Edgar Niecke, V. Von Der Gönna, Haiko Beckmann, Gisela Ohms, Kerstin Krüger, Gisbert Grossmann
Publikováno v: Phosphorus, Sulfur, and Silicon and the Related Elements. 111:16-16
Chalcogeno methylene phosphoranes 2,4,6-tBu3C6H2P(=X)=C(SiMe3)2 with X = O, S or Se were synthesized and their crystal structures characterized by means of X-ray structure analysis. 31P CP MAS NMR measurements and IGLO calculations of model compounds
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ba3eaf069fb1443a7025376fc055e84
https://doi.org/10.1080/10426509608054645
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje