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'31 P NMR Spectra' in keywords
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1Author    Samuel0. Grim, LarryC. Satek, J.Dale MitchellRequires cookie*
 Title    Polydentate Ligands Containing Phosphorus, III [1] Synthesis and Nuclear Magnetic Resonance Studies of Some Unsymmetrical Potentially Tridentate Phosphine Chalcogenide Ligands  
 Abstract    The synthesis via the useful lithium reagent intermediate, (CeH5)2P(S)CH2Li, is reported for eight compounds of the type [(C6Hs)2P(X)][R2P(X)]2CH, where R is methyl or phenyl and X is an electron pair, oxygen, or sulfur in various combinations. Two related com-pounds with three and four phosphorus atoms, respectively, per molecule have also been prepared from the same lithium reagent. Tris(diphenylthiophosphoryl)methane has three equivalent phosphorus atoms as indicated by the room temperature phosphorus-31 NMR spectrum, but at reduced temperature a favored conformation exists which has two equivalent phosphorus atoms and a unique one. Other phosphorus-31 and proton NMR data are reported. 
  Reference    Z. Naturforsch. 35b, 832—837 (1980); received March 12 1980 
  Published    1980 
  Keywords    Polydentate Ligands, Phosphorus Chalcogenides, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0832.pdf 
 Identifier    ZNB-1980-35b-0832 
 Volume    35 
2Author    Abdel-Fattah Shihada, Rehab MajedRequires cookie*
 Title    Darstellung und spektroskopische Untersuchungen von Me3SiOP(S)Cl2, Me3SiOP(S)Br2 sowie Me3Si0P(0)Br2 Preparation and Spectroscopic Properties of Me3SiOP(S)Cl2, Me3SiOP(S)Br2 and Me3Si0P(0)Br2  
 Abstract    Trimethylsilyl dichlorothiophosphate (Me3SiOP(S)Cl2) and trimethylsilyl dibromothio-phosphate (Me3SiOP(S)Br2) are prepared by reactions of (Me3Si)2S with P0C13 and POBr3, respectively. The reaction of POBr3 with Me3SiOCOCH3 in the mol ratio 1:1 gives Me3Si0P(0)Br2, a molar ratio of 1:3 leads to (Me3SiO)3PO. The vibrational spectra have been used to elucidate the structures of the compounds. It was found that -0P(S)C12 as well as -OP(S)Br2 are linked to the trimethylsilyl group through the oxygen atom. 
  Reference    Z. Naturforsch. 35b, 976—980 (1980); eingegangen am 7. März 1980 
  Published    1980 
  Keywords    Preparation, Properties, Vibrational Spectra, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0976.pdf 
 Identifier    ZNB-1980-35b-0976 
 Volume    35 
3Author    M. Biddlestone, R. Keat, H. Rose, D. S. Rycroft, R. A. ShawRequires cookie*
 Title    Stereospecific Four-Bond Phosphorus-Phosphorus Spin Couplings in Phosphazenyl-Phosphazenes  
 Abstract    Four-bond phosphorus-phosphorus cou-pling constants have been measured from the 
  Reference    (Z. Naturforsch. 31b, 1001—1002 [1976]; received March 4 1976) 
  Published    1976 
  Keywords    31 P NMR Spectra, Four-Bond Phosphorus-Phosphorus Coupling, Conformation, Phosphazenylcyclophosphazenes 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-1001_n.pdf 
 Identifier    ZNB-1976-31b-1001_n 
 Volume    31 
4Author    HerbertW. Roesky, Habibollah Djarrah, Mathias Noltemeyer, GeorgeM. SheldrickRequires cookie*
 Title    Über Reaktionen von Pyrrolidinium-bis(diethylphosphoryl)phosphinidin mit Chromcarbonylkomplexen Reaction of Pyrrohdinium-bis(diethylphosphoryl)phosphinidine with Chromiumcarbonyl Complexes  
 Abstract    The reaction of [H2NC4H8]P[P(0)(0C2H5)2]2 with Cr(CO)5THF and Cr(CO)4C7H8 results in the formation of the 1: 1 and 1:2 chromium pentacarbonyl complexes. The 1: 1 complex was characterized on the basis of an X-ray analysis. It crvstallizes in the space group P I with a = 1091.9(10), 6=1164.1(12), c ='l356.4(9) pm, a = 108.89(6), ß= 97.57(7), y = 116.24(6), and Z — 2. The average P-P bond length was found to be 215.8 pm. 
  Reference    Z. Naturforsch. 37b, 1580—1583 (1982); eingegangen am 9. August 1982 
  Published    1982 
  Keywords    Crystal Structure, 31 P NMR Spectra, Phosphorus-Phosphorus Bonds, Chromium 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1580.pdf 
 Identifier    ZNB-1982-37b-1580 
 Volume    37 
5Author    Wilfried Peters, Gerhard HageleRequires cookie*
 Title    Kernresonanzspektroskopische Untersuchungen an Organophosphorverbindungen - Thiophosphorylbromide RR P(S)Br: R,R =CH3, C2H5, f-C3H7, t-C4H9 NMR Studies on Organophosphorous Compounds -Thiophosphorylbromides RR'P(S)Br  
 Abstract    NMR spectra of dialkylthiophosphoryl bromides RR'P(S)Br are analyzed. Methods are demonstrated for C2H5(t-C3H7)P(S)Br. A correlation between <53ip in the 31 P NMR spectra and the number of y3-methyl groups is discussed. 
  Reference    (Z. Naturforsch. 38b, 96—102 [1983]; eingegangen am 23. August 1982) 
  Published    1983 
  Keywords    Dialkylthiophosphoryl Bromides, NMR Spectra, X H NMR Spectra, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0096.pdf 
 Identifier    ZNB-1983-38b-0096 
 Volume    38 
6Author    HerbertW. Roesky, Habib Djarrah, Manfred Thomas, Berat Krebs, Gerald HenkelRequires cookie*
 Title    Oxidationsreaktionen von Phosphanen mit Schwefeldioxid Oxidation Reactions of Phosphanes with Sulfur Dioxide  
 Abstract    Sulfur dioxide can be used as an oxidizer in the reaction of Zn(S02)re(AsFe)2 and tetra-phenyldiphosphane. The resulting product is the tetraphenyldiphosphane dioxide complex of composition Zn[02P2(C6H5)4]3(AsF6)2 (1)-The same compound is formed by the direct reaction of the zinc salt with 02P2(C6Hs)4-When Zn(S02)«(AsF6)2 is treated with P[0 = P(0C2H5)2]3 in liquid S02, Zn{P[0 = P(0C2H5)2]3}2(AsF6)2 (2) is formed. The struc-ture of 2 was investigated by means of an X-ray single crystal analysis. 2 crystallizes in space group P~31c with a = b= 11.967(3) and c = 21.202(4) Ä. 
  Reference    Z. Naturforsch. 38b, 168—171 (1983); eingegangen am 25. Oktober 1982 
  Published    1983 
  Keywords    Zinc and Tungsten Complexes, X-ray Structure, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0168.pdf 
 Identifier    ZNB-1983-38b-0168 
 Volume    38 
7Author    Hidenari Inoue, Takashi Nakagome, Takeshi Kuroiwa, Tsuneo Shirai, Ekkehard FluckRequires cookie*
 Title    Infrared, 57 Fe Mössbauer, and 31 P NMR Spectroscopic Characterization of Fe(CO) 4 L (L = Phosphine and Phosphite)  
 Abstract    A series of trigonal bipyramidal Fe(CO) 4 L complexes has been prepared and characterized by infrared, 57 Fe Mössbauer and 31 P NMR spectroscopy. A linear correlation, with a negative slope, between the CO stretching frequencies and the isomer shifts demonstrates that the triple bond nature of the carbonyl ligands is strengthened with increasing iron-to-phosphorus back donation. The linear dependence of the quadrupole splittings on the isomer shifts with a positive slope has revealed that the cr-donor capability of the phosphine or phosphite ligand is offset by the ^ • -acceptor capability. The formation of Fe(CO) 4 L complexes from the corresponding free ligands is accompanied by a downfield shift of 31 P NMR chemical shifts. The coordination shifts are linearly correlated with the Mössbauer isomer shifts. 
  Reference    Z. Naturforsch. 42b, 573—578 (1987); eingegangen am 8. Januar 1987 
  Published    1987 
  Keywords    Phosphinetetracarbonyliron, Phosphitetetracarbonyliron, IR Spectra, 31 P NMR Spectra, 57 Fe Mössbauer Spectra 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0573.pdf 
 Identifier    ZNB-1987-42b-0573 
 Volume    42 
8Author    Rolf Appel, Ulrich BaumeisterRequires cookie*
 Title    Darstellung Diorganylamino-substituierter Carbodiphosphorane [1] Synthesis of Diorganylamino Substituted Carbodiphosphoranes [1]  
 Abstract    Aminolysis of the P-chlorofunctional carbodiphosphorane Ph3P = C = PPI12CI (1) affords the diorganylamino substituted phosphonium salts PI13P—CH—PPh2(NR2)] + Cl~ (3a-e, R = alkyl), which can be dehydrohalogenated in good yield by NaH to give the neutral compounds Ph3P = C — PPli2(NR2) (4a-e). The structure of the hitherto unknown amino-carbodiphosphoranes has been confirmed by 31 P{ 1 H} and 13 C{ 1 H} NMR data as well as by hydrolysis to give 5, hydrochlorination to 6b, e and methylation to 7 a, e. 
  Reference    Z. Naturforsch. 35b, 513—516 (1980); eingegangen am 7. Dezember 1979 
  Published    1980 
  Keywords    Carbodiphosphoranes, Diorganylamino Substitution, Base Reaction, 13 C NMR Spectra, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0513.pdf 
 Identifier    ZNB-1980-35b-0513 
 Volume    35 
9Author    Helmut Behrens, Jochen Ellermann, EwaldF. HohenbergerRequires cookie*
 Title    Dicarbonyl-, Carbamoyl-carbonyl-und Carbomethoxo-carbonyl-Komplexe des Rhodiums mit tri-und tetratertiären Phosphinliganden [1] Dicarbonyl-, Carbamoyl-carbonyl-and Carbomethoxo-carbonyl Complexes of Rhodium with Tri-and Tetratertiary Phosphine Ligands [1]  
 Abstract    The cationic dicarbonyl complexes [Rh(CO)2(R2PCH2)3CR']PF6 (R = C6H5; R' = CH3, -CH2PR2), formed by high pressure synthesis from RhCl3(H20)3, CO and (R2PCH2)3CR' react with liquid ammonia at 20 °C to give the carbamoyl complexes Rh(CO)(CONH2)(R2PCH2)3CR'. At 100 °C in liquid ammonia the carbamoyl-carbonyl complexes Rh(CO)(CONH2)(R2PCH2)3CR' form the CO-bridged, dinuclear compounds (^-CO)2[Rh(R2PCH2)3CR']2. Upon treatment of Rh(CO)(CONH2)(R2PCH2)3CR' with CH3OH the carbomethoxo carbonyl complexes Rh(CO)(COOCH3)(R2PCH2)3CR' are obtained. The new compounds were characterised, as far as possible, by their IR, Raman and 31 P NMR spectra. 
  Reference    Z. Naturforsch. 35b, 661—668 (1980); eingegangen am 10. Dezember 1979/30. Januar 1980 
  Published    1980 
  Keywords    Rhodium Complexes, Polytertiary Phosphines, IR Spectra, Raman Spectra, 31 P NMR Spectra 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0661.pdf 
 Identifier    ZNB-1980-35b-0661 
 Volume    35 
10Author    Gerhard Hägele, Detlef Wendisch, ++, Reiner Luckenbach, Hans-H BechtolsheimerRequires cookie*
 Title    Kernresonanzspektroskopische Untersuchungen an t-Butyl-phenyl-phosphinsäure-(—)-menthylester, II [1] 1 H-, 13 C-und 31 P-NMR-Analyse der absoluten Konfiguration am Phosphoratom NMR Spectroscopic Investigations on £-Butyl-phenyl-phosphinic Acid(—)-Menthyl Ester, II [1] 1 H, 13 C and 31 P NMR Analysis of Absolute Configuration at the Phosphorus Center  
  Reference    Z. Naturforsch. 35b, 1182—1190 (1980); eingegangen am 19. Mai 1980 
  Published    1980 
  Keywords    (—)-Menthol, Diastereomeric Menthylesters of Phosphinic Acids, 31 P NMR Spectra, 13 C NMR Spectra, Double Resonance 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-1182.pdf 
 Identifier    ZNB-1980-35b-1182 
 Volume    35 
11Author    Rolf Appel, Karl WaidRequires cookie*
 Title    Darstellung symmetrisch bisaminierter Carbodiphosphorane R2NPh2P=C=PPh2NR2 [1] Synthesis of Symmetrical Diaminocarbodiphosphoranes R2NPh2P=C=PPh 2 NR2 [1]  
 Abstract    The hitherto unknown symmetrical diamino carbodiphosphoranes R2NPh2P = C — PPh2NR2 (5 a-d (R = CH3, Et, nPr, nBu) are obtained in good yield by NaH dehydrohalogenation of the corresponding aminophosphonium salts R2NPh2P^CH^PPh2NR2-i+Cl-(3a-d). 3 a-d can be prepared by aminolysis of C(PPh2Cl)2 (1) or, more conveniently, directly in the three component reaction ditertiary phosphine/amine/CCU (31 P{ 1 H} and 13 C{ 1 H} NMR). 
  Reference    Z. Naturforsch. 36b, 131—134 (1981); eingegangen am 22. Mai 1980 
  Published    1981 
  Keywords    Carbodiphosphoranes, Diorganylamino Substitution, Ylid Reaction, 31 P NMR Spectra, 13 C NMR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0131.pdf 
 Identifier    ZNB-1981-36b-0131 
 Volume    36 
12Author    Michael Morr, Ludger Ernst, Lutz GrotjRequires cookie*
 Title    2' ,3' -Dideoxy-3' -C-(phosphonomethyl)adenosine, the Phosphonate Analogue of 2'-Deoxyadenosine 3'-Phosphate  
 Abstract    The title compound 7 is prepared in a five-step synthesis starting from l,2-di-0-acetyl-5-0-benzoyl-3-deoxy-3-0-(diethoxyphosphonomethyl)-/3-D-ribofuranose (2). The preferred conformation of 7 is derived from its X H and 13 C NMR data. 
  Reference    Z. Naturforsch. 38b, 1665—1668 (1983); received July 6 1983 
  Published    1983 
  Keywords    Nucleotide Analogue, Phosphonate, !H NMR Spectra, 13 C NMR Spectra, 31 P NMR Spectra, Conformation 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1665.pdf 
 Identifier    ZNB-1983-38b-1665 
 Volume    38