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1982 (310)
101Author    H. P. Beck, A. LimmerRequires cookie*
 Title    Zur Kenntnis von Hydridhalogeniden MHX der Seltenen Erden Eu, Yb und Sm (X = Cl, Br, I) A Study on Hydride Halide Compounds MHX of the Rare Earths Eu,Yb, and Sm (X = Cl,Br,I)  
 Abstract    New hydride halide compounds MHX (M = Eu, Yb, Sm; X = Cl, Br, I) of divalent rare earths have been prepared by solid-state reactions. Lattice parameters and X-ray diffrac-tion patterns are presented for these compounds. All compounds are isostructural with tetragonal PbFCl. Refined lattice parameters of alkaline earth hydride halides are given. The crystal chemistry of MHX and MFX is compared and the geometric variations in the structure of these compounds are interpreted on the basis of changes in covalency. 
  Reference    Z. Naturforsch. 37b, 574—578 (1982); eingegangen am 7. Dezember 1981 
  Published    1982 
  Keywords    Rare Earth Hydride Halide Compounds, Alkaline Earth Hydride Halide Compounds, Covalency Effects in Hydride Compounds 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0574.pdf 
 Identifier    ZNB-1982-37b-0574 
 Volume    37 
102Author    W. Preetz, G. RimkusRequires cookie*
 Title    Darstellung und Schwingungsspektren von Chloro-Bromo-Platinaten(IV) einschließlich der Stereoisomeren Preparation and Vibrational Spectra of Chloro-Bromo-Platinates(IV) Including Stereoisomers  
 Abstract    The mixed chloro-bromo complexes [PtClnBr6-n] 2_ > n = 1-5, are separated by ion exchange chromatography on diethylaminoethylcellulose. The separation of corresponding stereoisomers for n — 2, 3, 4 is not possible. Due to the stronger trans-effect of Br compared with Cl, on treatment of [PtBrß] 2-with Cl -in the presence of Br2 nearly pure cis-isomers, and by reaction of [PtClsBr] 2-and cis-fPtC^Bro] 2-with Br~/Br2 completely pure trans-isomers are formed. The stereoselectivity of the successive ligand exchange reactions is better than in corresponding series of Re, Os and Ir. The highly resolved vibrational spectra allow the distinction of the mixed ligand complexes as well as the estimation of purity of the isomers. All allowed stretching frequencies are observed and assigned according to point groups D4h, C4V, C3V and C2V-Especially in the i>(Pt-Br) region it is possible to distinguish bands arising either from symmetric Br-Pt-Br or asymmetric Cl-Pt-Br axes. The UV/VIS spectra exhibit systematic hypsochromic shifts on the successive exchange of Br-ligands by Cl. A critical discussion of the literature concerning chloro-bromo-platinates-(IV) shows the importance of effective separation processes for the isolation of pure mixed ligand complexes. 
  Reference    Z. Naturforsch. 37b, 579—586 (1982); eingegangen am 21. Dezember 1981 
  Published    1982 
  Keywords    Chloro-Bromo-Platinates(IV), Stereoisomers, ^rans-Effect 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0579.pdf 
 Identifier    ZNB-1982-37b-0579 
 Volume    37 
103Author    Joachim Fuchs, Reinhard Loederich, Joachim PickardtRequires cookie*
 Title    Struktur und Schwingungsspektrum des Tetraguanidiniumditellurats  
 Abstract    , [C(NH2)3]4Te206(0H)4 Structure and Vibrational Spectrum of Guanidiniumditellurate, [C(NH2)3]4Te206(0H)4 Ditellurate, X-ray, Vibrational Spectra Guanidiniumditellurate obtained from aqueous solution at room temperature forms triclinic crystals of space group P 1 with lattice parameters a = 17.486(4) A, b = 8.459(7) A, c = 7.134(8) A; a = 107.42(2)°, ß = 83.95(2)° and y = 103.14(2)°. The unit cell contains two crystallographically independent anions with symmetry centers at 0, 0, 0 and 1/2, 0, 1/2. They consist of two octahedral Te04(0H)2 units which share two common oxygen atoms. The guanidinium ions are connected over an irregular network of bridging hydrogens and terminal oxygen atoms of the anions, in similar manner as ditellurate ions are joined by water molecules in aqueous solutions: the Raman spectrum of the guanidinium salt is nearly identical with the solution spectrum of a ditellurate, but exhibits pronounced differ-ences regarding the spectrum of the solid potassium salt K4Te206(0H)2 • 7 H2O. 
  Reference    Z. Naturforsch. 37b, 587—593 (1982); eingegangen am 6. Oktober 1981/13. Januar 1982 
  Published    1982 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0587.pdf 
 Identifier    ZNB-1982-37b-0587 
 Volume    37 
104Author    Dieter Weber, Ekkehard Fluck, Hans-Georg Von Schnering, Karl PetersRequires cookie*
 Title    Ein-und zweikernige, anionische Komplexe mit dem Bis(diethoxyphosphinoyl)phosphido-Liganden One and Two Nuclear Anionic Complexes with the Bis(diethoxyphosphinoyl)phosphido Ligand  
 Abstract    Bis(diethoxyphosphinoyl)phosphido Pentacarbonyl Tungstate, /i-Bis(diethoxypliosphinoyl)phosphido Bis(pentacarbonylmolybdate), Crystal Structure, NMR Spectra The central phosphorus atom of the anion 2 in piperidinium bis(diethoxyphosphinoyl)-phosphide acts as an electron donor towards one or two M(CO)s groups (M — Mo, W) forming the crystalline coordination compounds 4 and 5. The NMR and IR spectra as well as the X-ray diffraction data are presented. 
  Reference    Z. Naturforsch. 37b, 594—600 (1982); eingegangen am 30. Oktober 1981 
  Published    1982 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0594.pdf 
 Identifier    ZNB-1982-37b-0594 
 Volume    37 
105Author    Wolfgang Malisch, Hans-Ulrich Wekel, Irmgard Grob, FrankH. Köhler, Frau Prof, M. Dr, BaudlerRequires cookie*
 Title    Synthese und Reaktivität von Silicium-Übergangsmetallkomplexen, XIV [1] Umsetzung von Cp(CO)2Fe-substituierten Silieium-Wasserstoff-Verbindungen mit DicobaJtoctacarbonyl: Synthese von Siliciumverbindungen mit zwei, drei und vier Übergangsmetall -Liganden Synthesis and Reactivity of Silicon Transition Metal Complexes, XIV [1] Reaction of Cp(C0)2Fe-Substituted Silanes with Dicobaltoctacarbonyl: Synthesis of Silicon Compounds with Two, Three and Four Transition Metal Ligands  
 Abstract    The reaction of Cp(CO)2Fe-SiHCl2 with Co2(CO)s yields the heteronuclear complex Cp(CO)2Fe-SiCl2-Co(CO)4 (1) and HCo(CO)4.1 is degradated by AgBF4 to Cp(CO)2Fe-SiF3. PMe3 transforms 1 to Cp(CO)2Fe-SiCl2-Co(CO)3PMe3 (2). L"M-SiH2Me reacts with Co2(CO)8 to give L"M-SiMe-Co2(CO)7 [L"M = Cp(CO)2Fe (3a), Cp(CO)2PMe3W (3b)]. Starting with Cp(CO)2Fe-SiH3, // 3 -Cp(CO)2Fe-SiCo3(CO)9 (4), the second example of a /^-metallosilylidine tricobalt cluster is obtained in high yield, which is cleaved by acetic acid to Cp(C0)2Fe-Si[0C(0)Me]3 (5). The composition and structure of the silicon transi-tion metal complexes 1-5 is proved by NMR, IR and mass spectroscopy. 29 Si NMR shifts are determined for the first time for a tri-and tetra-metalated silicon species. 
  Reference    Z. Naturforsch. 37b, 601—609 (1982); eingegangen am 5. November 1981 
  Published    1982 
  Keywords    Metalation of Silicon Hydrides, Silicon Transition Metal Complexes, Heteronuclear Cluster Compounds 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0601.pdf 
 Identifier    ZNB-1982-37b-0601 
 Volume    37 
106Author    Hartwig Schäfer-Stahl, Josef Schneider, Gottfried HuttnerRequires cookie*
 Title    57 Fe-Mößbauer-Messungen an //3-RP-verbrückten heterometallischen Clustern ^3-RP  
 Abstract    (C5H5(CO)2Mn)Fe2(CO)6Ln (n = 0,1, 2; L -CO, R3X mit X = P, As, Sb und R = Ph, OPh, OMe) 57 Fe Mößbauer Spectra of //3-RP-Bridged Heterometallic Clusters iu3-RP-(C5H5(CO)2Mn)Fe(CO)6Lra (n = 0, 1, 2; L = CO, R3X with X = P, As, Sb and R = Ph, OPh, OMe) 57 Fe-Mössbauer Spectra, ^3-RP-Bridged Heterometallic Clusters Room-temperature Mössbauer spectra are reported for //3-RP-bridged heterometallic iron clusters of the type yu3-RP-(C5H5(CO)2Mn)Fe2(CO)6Ln. The Mössbauer parameters of these clusters show that the structures are in agreement with the lattice constants of low-spin hetero manganese-iron clusters. 
  Reference    Z. Naturforsch. 37b, 610—613 (1982); eingegangen am 16. November 1981 
  Published    1982 
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 Identifier    ZNB-1982-37b-0610 
 Volume    37 
107Author    Max Herberhold, Herbert TrampischRequires cookie*
 Title    Spektroskopische Untersuchungen an Cyclopentadienyl-dinitrosylvanadium-Komplexen CpV(NO)2L (L = Lewis-Base) Spectroscopic Studies with Cyclopentadienyl Dinitrosylvanadium Complexes CpV(NO)2L (L = Lewis Base)  
 Abstract    Displacement of the CO ligand in CpV(NO)2CO (Cp = rf>-cyclopentadienyl) by various Lewis bases (L) in solution leads to a series of (28) complexes CpV(NO)2L which were characterised by the 51 V NMR chemical shift, the 13 C and *H NMR chemical shifts of the cyclopentadienyl ring, and by the NO stretching frequencies of the two nitrosyl ligands. The chemical shift <5(51 V) varies over the range of ca. -1300 and -500 ppm depending on the nature of L, whereas f5(13 C) of the cyclopentadienyl ring varies only between 98 and 102 ppm. The shielding of the 51 V and 13 C nuclei decreases as the electronegativity of the ligand atom bound to the metal increases in the order P < S < N < O. 
  Reference    Z. Naturforsch. 37b, 614—619 (1982); eingegangen am 13. November 1981 
  Published    1982 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0614.pdf 
 Identifier    ZNB-1982-37b-0614 
 Volume    37 
108Author    Günter Schmid, Richard Greese, R. BoeseRequires cookie*
 Title    G. Schmid-R. Greese * Tetraschwefeltetraimid als Ligand in Übergangsmetallkomplexen 644 Tetrasulfur Tetraimide as Ligand in Transition Metal Complexes  
 Abstract    Tetrasulfur tetraimide reacts with (THF)M(CO)s (M = Cr, W) to form isolable complexes of the type (S4N4H4)M(CO)5 (1) and (S4N4H4)[M(CO)5]2 (2) respectively, m NMR and X-ray investigations show the metal to be coordinated to sulfur atoms. In solution partially dissociation of M(CO)s moieties is observed leading to different equilibria. They are studied by !H NMR. 
  Reference    Z. Naturforsch. 37b, 620—626 (1982); eingegangen am 16. Oktober 1981 
  Published    1982 
  Keywords    Tetrasulfur Tetraimide, Pentacarbonyl Chromium, Pentacarbonyl Tungsten, Synthesis, m NMR Spectra 
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 Identifier    ZNB-1982-37b-0620 
 Volume    37 
109Author    ErnstOtto Fischer, Paul RustemeyerRequires cookie*
 Title    Übergangsmetall-Carben-Komplexe, CXXIII [1] Dicarbenoktacarbonyldirhenium-Komplexe Transition Metal Carbene Complexes, CXXIII [1] Dicarbeneoctacarbonyldirhenium Complexes Transition Metal Carbene Complexes, Oktacarbonyl-Re 1 -ax-Re 2 -eq-dicarbene Dirhenium Complexes  
 Abstract    The reaction of Re2(CO)io with LiSi(C6H,5)3 and subsequent alkylation by (C2H5)30BF4 yields not only (CO)9Re2C(OC2H5)Si(C6H5)3 but also Re 1 -ax,Re 2 -eq-[C(OC2H5)Si(C6H5)3]2(CO)8Re2 (1). The analogous isomeric complexes Re 1 -ax-[C(OC2H 5)C6H4CH3]-Re 2 -eq-[C(OC2H5)Si(C6H 5)3](CO)8Re2 (2) and Re 1 -ax-[C(OC2H5)Si(C 6 H5)3]-Re 2 -eq-[C(OC2H5)C6H 4 CH3](CO)8Re2 (3) are obtained by treatment of eq-or ax-(CO)9Re2C(OC2H5)Si(C6H5)3 with LiCßlUCHs and subsequent alkylation by (C2Hs)30BF4. Reaction conditions, and properties and spectroscopic data of the new compounds are reported. 
  Reference    Z. Naturforsch. 37b, 627—630 (1982); eingegangen am 23. Dezember 1981 
  Published    1982 
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 Identifier    ZNB-1982-37b-0627 
 Volume    37 
110Author    Dieter Rehder, Hans-Christoph Bechthold, Ahmet Keçeci, Hartwig Schmidt, Michael SiewingRequires cookie*
 Title    A Comparative Study of Metal Shielding in Low Valent Vanadium, Niobium and Manganese Complexes  
 Abstract    Variations of the metal chemical shifts <5(51 V), <5(55 Mn) and <S(93 Nb) with the para-magnetic deshielding contribution to the overall shielding are discussed in terms of influences imposed by the ligand field splitting, the nephelauxetic effect and the covalency of the metal-to-ligand bond. Complexes under investigation are isoelectronic and/or iso-structural series [M(CO)6_nL"]<i (M = V, Nb: q = —1; M = Mn: q = + 1; n = 0-6), 7? 5 -C5H5M(CO)4-KLn (M = V, Nb; n = 0-4) and r? 5 -C5H5M(L /)2L (M = V, L' = NO; M = Mn, L' = CO). L is a monodentate or l/n oligodentate phosphine. <5 varies with the point symmetry of the complex, and with ligand parameters of primarily electronic or steric origin. Generally, for weak to medium ^-interaction, there is a decrease of shielding with decreasing yr-acceptor power of the ligand, increasing ligand bulkiness, increasing ring strains in chelate structures and increasing degree of substitution. For strong ^-inter-action, the trends may be interconverted. PF3 is shown to be a slightly weaker 7r-acceptor than CO. Selected results on nuclear-spin spin coupling constants, 13 C and 31 P shielding are also presented. 
  Reference    Z. Naturforsch. 37b, 631—645 (1982); eingegangen am 25. November 1981 
  Published    1982 
  Keywords    Carbonylphosphinevanadium, Carbonylphosphineniobium, Carbonylphosphinemanganese, NMR Spectra 
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 Identifier    ZNB-1982-37b-0631 
 Volume    37 
111Author    S. P. Perlepes, ThF. Zafiropoulos, A. K. Anagnostopoulos, A. G. GalinosRequires cookie*
 Title    Compounds of Complex Halo and Pseudohalo Acids of the Group IIB Metals, Part V [1] Preparative and Spectroscopic Studies of the [Hg2I5]-, [Hg2I6]2-and [Hg3I8] 2 -Ions  
 Abstract    The preparations of new compounds, containing the complex anions [Hg2ls] -, [Hg2le] 2-and [Hg3I8] 2 -, are reported. Distorted iodine-bridged configurations are proposed for the complexes in the solid state, utilising analyses, X-ray powder patterns, molar conductance measurements and spectral (IR, UV) data. 
  Reference    Z. Naturforsch. 37b, 646—648 (1982); received November 9 1981 
  Published    1982 
  Keywords    Mercury, Iodomercurates, 3-Picoline, Quinoline, IR Spectra 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0646.pdf 
 Identifier    ZNB-1982-37b-0646 
 Volume    37 
112Author    N. Miyoshi, M. Ueda, K. Fuke, Y. Tanimoto, M. Itoh, G. TomitaRequires cookie*
 Title    Lifetime of Singlet Oxygen and Quenching by NaN3 in Mixed Solvents  
 Abstract    Singlet Oxygen, Thermal Lensing Technique, Mixed Solvents Singlet oxygen was generated by the photosensitization of erythrosine. The lifetime of singlet oxygen and the quenching rate constant for singlet oxygen by NaN3 were measured by a thermal lensing method in MeOH-H^O mixed solvents. The reciprocal of the lifetime increased linearly with the increase of the H2O mole fraction. Semi-log plot of the quenching constant against the reciprocal of the solvent polarity exhibited a linear relation. The quenching of the singlet oxygen by NaN3 may proceed through a partial charge-transfer intermediate. The activation energy for the quenching reaction of N3~ + 1 02 ->-[N3---1 02 _ ] increased with the increase of the solvent polarity. The lifetime was also measured in MeOH-ethyleneglycol mixed solvents, and its relation with viscosity was obtained. 
  Reference    Z. Naturforsch. 37b, 649—652 (1982); received October 29 1981 
  Published    1982 
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 Identifier    ZNB-1982-37b-0649 
 Volume    37 
113Author    WilliamS. SheldrickRequires cookie*
 Title    Preparation and Structure of Zinc(II) Complexes of Purine and 7-Azaindole  
 Abstract    Trichloro(purinium)zinc(II), Dichloro-bis-(7-azaindole)zinc(II), X-ray Trichloro(purinium)zinc(II) (1) and dichloro-bis-(7-azaindole)zinc(II) (2) have been prepared from respectively 1:1 (in acid solution) and 2:1 aqueous solutions of the parent base and zinc(II) chloride. In the latter case the salt di-[7-azaindolium]zinc(II) tetra-chloride (3) is isolated under acid conditions. The structures of 1-3 have been established by X-ray structural analyses. Zinc coordinates the purine nitrogen N(7) in 1 and N(3) of 7-azaindole in 2. N(l) is protonated in 1. The bond length distribution of the cations 3 suggests a significant contribution from a resonance form in which N(9) carries the positive charge. 
  Reference    Z. Naturforsch. 37b, 653—656 (1982); received November 16 1981 
  Published    1982 
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 Identifier    ZNB-1982-37b-0653 
 Volume    37 
114Author    Manfred Gerlach, Peter Jutzi, Johannes-Peter Stasch, Horst PrzuntekRequires cookie*
 Title    Synthese und pharmakologische Eigenschaften von 4.4-Diphenyl-4-sila-piperidinen Synthesis and Pharmalogical Properties of 4,4-Diphenyl-4-sila-piperidines  
 Abstract    4,4-Diphenyl-4-sila-piperidines, Syntheses and Properties, Neuropharmaca 4,4-Diphenyl-4-sila-piperidines 3 a-d and their hydrochlorides 4 a-d could be synthesized by two different methods starting from diphenyldivinylsilane (Scheme 1). Some properties of these compounds are described. They are the silicon analogues of the well known neuro-pharmaca 10. Preliminary pharmacological investigations show that the sila-compounds 4a-c have interesting affects concerning to the content of neurotransmitter in the homogenate of rat brains and to the bonding to different receptors. 
  Reference    Z. Naturforsch. 37b, 657—662 (1982); eingegangen am 27. November 1981 
  Published    1982 
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 Identifier    ZNB-1982-37b-0657 
 Volume    37 
115Author    Willy Friedrichsen, Ingo Schwarz, Tony DebaerdemaekerRequires cookie*
 Title    Thermische Umlagerung eines [TT4-|-7r4]-Cycloaddukts Reactions of Five-Membered Mesoionic Heterocycles with o-Quinonoid Compounds, VI [1] Thermal Rearrangement of a [ti4-\-7i4]-Cycloadduct  
  Reference    Z. Naturforsch. 37b, 663—668 (1982); eingegangen am 25. September 1981 
  Published    1982 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0663.pdf 
 Identifier    ZNB-1982-37b-0663 
 Volume    37 
116Author    Hans Möhrle, Hans-Joachim NovakRequires cookie*
 Title    Aminomethylierung von 3-Amino-inden-l-onen Aminomethylation of 3-Amino-indene-l-ones  
 Abstract    Aminomethylation, Enaminones, Tetrahydropyrimidines N-mono-and N-di-substituted 3-amino-indene-l-ones with free secondary amines yield no Mannich products, but the corresponding 2,2'-methylene biscompounds. C-Amino-methylation is possible with hydrochlorides of secondary amines, aminals or methylene iminium salts. With primary amines and two equivalents of formaldehyde indeno-pyrimidines are available. 
  Reference    Z. Naturforsch. 37b, 669—674 (1982); eingegangen am 1. Dezember 1981 
  Published    1982 
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 Identifier    ZNB-1982-37b-0669 
 Volume    37 
117Author    S. Holle, P. W. Jolly, R. Mynott, R. SalzRequires cookie*
 Title    ^ 3 -Allyl-Stabilized 'Ate Complexes of Nickel, Palladium and Platinum  
 Abstract    Organolithium compounds react with the bis-(^ 3 -allyl)metal complexes of nickel, palladium and platinum by addition to give ionic 'ate complexes in which one allyl group has been converted into the rj 1 -allyl form. 
  Reference    Z. Naturforsch. 37b, 675—676 (1982); received November 16 1981 
  Published    1982 
  Keywords    ?? 3 -Allyl Complexes, Nickelate, Palladate, Platinate Complexes 
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 Identifier    ZNB-1982-37b-0675_n 
 Volume    37 
118Author    Hubert Schmidbaur, Thomas CostaRequires cookie*
 Title    Synthese eines Doppel-Carbodiphosphorans und seiner Vorstufen Synthesis of a Double-Carbodiphosphorane and its Precursors  
 Abstract    The reaction of 1,4-dibromobutane with bis(diphenylphospliino)methane (1) yields two products, one of which is identified as butane-l,4-bis[diphenyl(diphenylphosphinomethyl)-phosphonium bromide] (3 a). Transylidation of this bis-phosphonium salt using two equiv-alents of (CH3)3P = CH2 affords the bis-ylide [CH2CH2P(C6H5)2 = CH-P(C6H5)2]2 (4) in high yields. This conversion can be reversed on treatment of 4 with etheral HCl (to give 3b). Methylation of 4 with CH3I occurs at phosphorus, however, and produces the bis-semiylide salt (5), [CH2CH2P(C6H5)2CHP(C6H5)2CH3]2 2e 2Iö. Transylidation of 5 (again with (CH3)3P = CH2) leads to the bis-carbodiphosphorane (6), [CH2CH2P(C6H5)2 = C = P(C6H5)2CH3]2. All compounds were characterized by elemental and detailed NMR analyses. The second product of the above quaternisation reaction is a cyclic bis-phosphonium salt (2) with a seven-membered ring structure. 
  Reference    Z. Naturforsch. 37b, 677—79 (1982); eingegangen am 9. Februar 1982 
  Published    1982 
  Keywords    1, 4-Dibromobutane, Transylidation, Carbodiphosphorane, Bis-carbodiphosphorane, Ylides 
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 Identifier    ZNB-1982-37b-0677 
 Volume    37 
119Author    Karl Wieghardt, Wolfgang Holzbach, Johannes WeissRequires cookie*
 Title    ^-Koordination eines Hydroxylamid(2-)Anions  
 Abstract    Die Kristallstruktur von [Mo(NO)(terpy)(CN)(HNO>] 2H20 r/ 2 -Coordination of a Hydroxylamido(2-) Anion: The Crystal Structure of [Mo(N0)(terpy)(CN)(HX0)]2H20 Crystal Structure, Hydroxylamido(2-)Anion The red, diamagnetic complex [Mo(NO)(terpy)(CN)(HNO)] • 2 H20 crystallizes in the triclinic space group pT(CJ-No2) with cell constants a = 867.1(3), b = 1008.4(4), c = 1095.6(3) pm, a = 73.64(3) ü , ß = 83.54(3)°, y = 83.16(3)°, and Z = 2. The final R value of the single crystal X-ray analysis is 0.063 for 1922 unique reflections. The structure consists of neutral complexes of [Mo(NO)(terpy)(CN)(HNO)]. The geometry about the molybdenum is a distorted pentagonal bipyramid with a linear NO and CN group in the axial positions, a triclentate terpyridine ligand and an 0,N-coordinated HNO 2-ligand in equatorial positions. 
  Reference    Z. Naturforsch. 37b, 680—683 (1982); eingegangen am 26. Januar 1982 
  Published    1982 
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 Identifier    ZNB-1982-37b-0680 
 Volume    37 
120Author    Horst Elias, Michael Dreher, Sabine Neitzel, Harald VolzRequires cookie*
 Title    Characterization of Alcohol Solvents by the Empirical Polarity Parameters AN, Z, and Ex(30)  
 Abstract    Solvent Polarity Scales, Polarity of Alcohols, Acceptor Number AN, Polarity Parameter Z and Ex(30) The acceptor number AN and the polarity parameters Z and ET(30) were determined for a series of alcohols applied as media in the study of kinetic solvent effects. The alcohols thus characterized are methanol, ethanol, 1-propanol, 1-butanol, 2-butanol, 2-methyl-2-butanol, 3-pentanol, 2-chloroethanol, 2-methoxyethanol, 2-phenylethanol, 2-cyanoethanol, benzyl alcohol, 3-ethyl-3-pentanol, 2,4-dimethyl-3-pentanol, and 3-ethyl-2,4-dimetliyl-3-pentanol. In addition, AN was determined for 1,2-dichloroethane and Z for the binary solvent mixtures methanol/2-methyl-2-butanol, ethanol/2,2,2-trifluoroethanol. and methanol/pyridine. The data obtained are correlated and the parameters AN, Z, and ET(30) are critically compared. 
  Reference    Z. Naturforsch. 37b, 684—687 (1982); received February 1 1982 
  Published    1982 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0684.pdf 
 Identifier    ZNB-1982-37b-0684 
 Volume    37 
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