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21	Author	S. Alunni, G. Giulietti	Requires cookie*
	Title
	Abstract	Alkoxides, Decomposition, /3-Phenylethylphosphonium Salts Styrene Kinetics /?-Phenylethylphosphonium salts in RO _ /ROH give styrene in amount depending on the steric requirements of the nucleophile and of the salt. The % of styrene formed increases from 22.9 with leaving group PPI13 to 85.0 with leaving group P(<-BU)3 in t-BuOK/t-BuOH.. Second order rate constants at 30 °C in Z-BuOK/£-BuOH are 1.1 • 10 _2 lm-1 s~ 1 with leaving group P(w-Bu)3 and 0.96-10~ 2 lm _1 s _1 with leaving group P (cyclohexyl)3. The data are consistent with a mechanism of ^-elimination.
	Reference	(Z. Naturforsch. 38b, 115—116 [1983]; received June 23 1982)
	Published	1983
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0115_n.pdf
	Identifier	ZNB-1983-38b-0115_n
	Volume	38

22	Author	Atta-Ur -Rahman, Nader Daulatabadi, D. Smith+, H.E J	Requires cookie*
	Title	C-13 NMR of Hecubine and Voaphylline, and a Study of Mass Spectral Fragmentation of Hecubine by Linked Scan Measurements
	Abstract	The C-13 NMR of hecubine and voaphylline are reported. The mass spectrum of hecubine has been studied by high resolution mass meas-urements, and the fragmentation patterns fol-lowed by a study of metastable ion transitions as determined by linked scan measurements.
	Reference	(Z. Naturforsch. 38b, 117—119 [1983]; received July 20 1982)
	Published	1983
	Keywords	13 C NMR Spectra, Hecubine, Voaphylline
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0117_n.pdf
	Identifier	ZNB-1983-38b-0117_n
	Volume	38

23	Author	Marianne Baudler, Siegfried Klautke	Requires cookie*
	Title	Beiträge zur Chemie des Phosphors, 124 [1, 2]
	Abstract	Tri-terJ-butyl-diphosphastiba-cyclopropan, (f-BuP)2Sb(t-Bu) Contributions to the Chemistry of Phosphorus, 124 [1, 2] Tri-ferf-butyl-diphosphastiba-cyclopropane, (£-BuP)2Sb(£-Bu)
	Reference	(Z. Naturforsch. 38b, 121—124 [1983]; eingegangen am 18. Oktober 1982)
	Published	1983
	Keywords	Tri-Zer£-butyl-diphosphastiba-cyclopropane, Tri-feri-butyl-diphosphastibirane, Cyclostibaphosphanes, Heterocyclophosphanes
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0121.pdf
	Identifier	ZNB-1983-38b-0121
	Volume	38

24	Author	HansJoachim Breunig, Ditmar Müller	Requires cookie*
	Title
	Reference	(Z. Naturforsch. 38b, 125—129 [1983]; eingegangen am 27. September/22. November 1982)
	Published	1983
	Keywords	Tetraethyldibismutane, Tetrapropyldibismutane, Tetraisopropyldibismutane, Tetrabutyldibismutane, Triisopropylbismutane
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0125.pdf
	Identifier	ZNB-1983-38b-0125
	Volume	38

25	Author	Jürgen Köhler, Rudolf Hoppe	Requires cookie*
	Title	Ein neues kationenreiches Oxogallat [1] Zur Kenntnis von K2Li3Ga04 A New Cation Rich Oxogallate [1] About K2Li3Ga04
	Abstract	The new compound K^LißGaC^ was prepared from binary oxides (powder) and from LiGa02/KOo.48 (colourless transparent single crystals) in a closed Ag cylinder at 600 °C. It crystallizes in the monoclinic space group P2i/c with the constants a = 553.6(2) 6 = 880.4(3) c = 1093.1(4) pm ß = 111.52(3)°. Z — 4, drö = 3.OI7 and dpyk = 2.97 g-cm -3 . [4-circle diffractometer data, 1333 Io (hkl), Mo-Ka, R = 4.95 and i?w = 5.04%, anisotropic refinement.] The new structure type is complicated. The characteristical features are shown using Schlegel projections of the coordination polyhedrons. Extended Schlegel Diagrams, a novel application of graph theory, are used. They describe bijective how the coordination polyhedra are three-dimensionally combined.
	Reference	(Z. Naturforsch. 38b, 130—138 [1983]; eingegangen am 31. August 1982)
	Published	1983
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	Identifier	ZNB-1983-38b-0130
	Volume	38

26	Author	R. Blachnik, H. A. Dreisbach, B. Engelen	Requires cookie*
	Title	Das Zustandsdiagramm ThalBum(I)iodid-Thallium(I)selenid und die Kristallslruktur der Verbindungsklasse T16X4Y [1] The System Thallous Iodide -Thallous Selenide and the Structure of the TI6X4Y Compounds
	Abstract	The system TlI-T^Se was investigated by DTA, X-ray and metallographic methods. At the T^Se corner of the system a solid solution up to 25 mol% Til is observed, which decomposes peritectically at 681 K. Two new compounds TlsISe2 and TlßLjSe were found. The latter is isotypic to a class of compounds found in the TIX-TI2S systems [2]. The crystal structure of TlßCUS was determined. It is based on the T1C1 structure (CsCl-type) in which 1/5 of the T1 or Cl atoms, resp., are substituted by T12S in a regular manner. The coordination of the anions (Cl, S) is very similar to the coordination of Cl in T1C1 or S in T12S resp.
	Reference	Z. Naturforsch. 38b, 139—142 (1983); eingegangen am 24. September 1982
	Published	1983
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0139.pdf
	Identifier	ZNB-1983-38b-0139
	Volume	38

27	Author	S. Blösl, W. Schwarz, A. Schmidt	Requires cookie*
	Title	Dimethylphosphinatotrichloroantimon(V)-Verbindiingeii Dimethylphosphinatotrichloroantimony(V) Compounds
	Abstract	Trichloroantimony(V) Compounds d,h-/^-Dimethylphosphinato-e-/u-methoxo-f-//-oxo-bis[trichloroantimony(Y)] (1) and bis-(^-dimethylphosphinato)-ia-oxo-bis[trichloroantimony(V)] (2) were prepared by reaction of bis(//-dimethylphosphinato-0,0')-bis[tetrachloroantimony(V)] with antimony(V)-chlo-ride/water 1:1 and antimony(V)-chloride/water/methanol 1:1:1, resp. The crystal and molecular structure of 2 was determined by X-ray analysis. The vibrational spectra of 1 and 2 are discussed. The mass spectrum of 2 was measured and the fragmentation classified.
	Reference	Z. Naturforsch. 38b, 143—148 (1983); eingegangen am 21. Oktober 1982
	Published	1983
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	Identifier	ZNB-1983-38b-0143
	Volume	38

28	Author	U. Ensinger, W. Schwarz, A. Schmidt	Requires cookie*
	Title	Alkylammonium-chloroantimonate(III) Struktur und Schwingungsspektren Alkylammoniumchloroantimonates(III). Structure and Vibrational Spectra
	Abstract	Chloroantimonates (III) The crystal and molecular structures of triethylammonium tetrachloroantimonate(III) (1) and tris[methylammonium] hexachloroantimonate(III) (2) were determined by X-ray analysis. In compound 1, SbCl3 molecules are bridged by Cl ions to form chains. The coordination of Sb by Cl atoms yields a distorted tetragonal-pyramidal structure. In compound 2 there are chains of SbCLr ions, again through bridging by Cl ions. One Cl ion has no contacts to Sb. The cations of 1 and 2 form hydrogen bonds with the anionic com-ponents.
	Reference	Z. Naturforsch. 38b, 149—154 (1983); eingegangen am 6. September 1982
	Published	1983
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0149.pdf
	Identifier	ZNB-1983-38b-0149
	Volume	38

29	Author	Klaus-Jürgen Range, Heinz-Joachim Hübner	Requires cookie*
	Title	Hochdrucksynthese quaternärer Chalkogenidhalogenide AB2X3Y (A = Cu, Ag; B = In; X = S, Se, Te; Y = Cl, Br, I) High Pressure Synthesis of Quaternary Chalcogenide Halogenides AB2X3Y
	Abstract	Quaternary compounds AB2X3Y (A = Cu, Ag; B = In; X = S, Se, Te; Y = Cl, Br, I) could be synthesized at high pressures and temperatures. The crystal structures found are defect-zincblende (AgIn2Se3l, AgIn2Te3l, CuIn2Se3Br, CuIn2Se3I, CuIn2Te3Cl, CuIn2Te3Br, CuInTesI), spinel (AgIn2S3Cl, AgIn2S3Br, AgIn2Se3Cl, AgIn2Se3Br, AgIn2Se3l) and defect-rocksalt (AgIn2Te3Cl, AgIn2Te3Br). A second form of CuIn2Se3l is intermediate between the zincblende and spinel structure. A survey of the different reaction pathways of AB-B2X3 mixtures at high pressures and temperatures is given.
	Reference	Z. Naturforsch. 38b, 155—160 (1983); eingegangen am 25. Oktober 1982
	Published	1983
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	Identifier	ZNB-1983-38b-0155
	Volume	38

30	Author	Karl Schlosser, Helge Willner	Requires cookie*
	Title	Photochemisches Verhalten von (CF3S)2CS in Inertgasmatrix Photochemical Behavior of (CFsS^CS in Rare Gas Matrix
	Abstract	Infrared spectra have been recorded of (CFsS^CS in the gas and solid phase as well as isolated in noble gas matrix; the Raman spectra of the liquid have also been taken. The analyses of the spectra show that this compound consists of a complex mixture of con-formers. By photolysis in a matrix with light of wavelength > 300 nm the distribution of the conformers changes and with light of wavelength > 530 nm this change can be reversed. The threshold for photochemical decomposition in the matrix is about 300 nm. The decomposition products consist of an equimolar mixture of CF3SCF3 and CS2.
	Reference	Z. Naturforsch. 38b, 161—167 (1983); eingegangen am 23. September/15. November 1982
	Published	1983
	Keywords	Bis(trifluormethyl)trithiocarbonate, Vibrational Spectra, Conformers, Rare Gas Matrix, Photochemical Behaviour
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0161.pdf
	Identifier	ZNB-1983-38b-0161
	Volume	38

31	Author	HerbertW. Roesky, Habib Djarrah, Manfred Thomas, Berat Krebs, Gerald Henkel	Requires 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

32	Author	Doris Bodenstein, William Clegg, Gerhard Jäger, PeterG. Jones, Horst Rumpel, Einhard Schwarzmann, GeorgeM. Sheldrick	Requires cookie*
	Title	Darstellung und Kristallstrukturen einiger MSb5013-Verbindungen (M = H30, Na, K) Preparation and Crystal Structure of Some MSbö0i3 Compounds (M = H3O, Na, K)
	Abstract	Crystal Structure, Antimonate(V) The compounds MSbsOi3 (M = H3O, Na, K) have been prepared and characterised by chemical analysis and X-ray structure determination. They are isostructural, space group Cmem, with a = 657.7(2), 657.3(2), 658.4(2); b = 887.3(3), 888.7(2), 888.2(2); c = 1682.6(5), 1651.5(3), 1677.0(3) pm for M = H30, Na, K, respectively. The polymeric structures consist of SbOß octahedra linked via edges and vertices to form an Sb50i3 framework, in which the univalent cations occupy holes. Because these ions display severe disorder, X-ray methods alone would not be sufficient to establish the chemical constitutions.
	Reference	Z. Naturforsch. 38b, 172—176 (1983); eingegangen am 6. Oktober 1982
	Published	1983
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	Identifier	ZNB-1983-38b-0172
	Volume	38

33	Author	Moisés Morán, Miguel Gayoso	Requires cookie*
	Title	Reactions of Dicyanogen and Cyanogen Halides with the Biscyclopentadienyls of Vanadium and Chromium
	Abstract	The oxidative addition of dicyanogen, (CN)2, and of the cyanogen halides, XCN (X = Cl, Br or I), to the biscyclopentadienyl compounds of vanadium and chromium, (/y-C^Hs^M (M = V or Cr), leads to the formation of (/?-C5H5)2MX(CN) (X = CN, Cl, Br, I; M = V or Cr). The synthesized compounds have been characterized by elemental analyses, IR and EPR spectra, and determinations of the magnetic moments.
	Reference	Z. Naturforsch. 38b, 177—180 (1983); received July 9/September 29 1982
	Published	1983
	Keywords	Cyanogen Halides, Vanadium, Chromium
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0177.pdf
	Identifier	ZNB-1983-38b-0177
	Volume	38

34	Author	Hans-Jörg Deiseroth, Han Fu-Son	Requires cookie*
	Title	Cs6Ga2Se6, ein ternäres Selenogallat(III) mit isolierten [Ga2Se6] 6 --Ionen Cs6Ga2Se6, a Ternary Selenogallate(III) with Isolated [Ga2Se6] 6_ Ions
	Abstract	Cs6Ga2Se6 can be prepared from mixtures of Cs2Se and Ga2Se3. The transparent single crystals of the moisture sensitive compound (m.p. 685 °C) crystallize in the monoclinic system with a = 848.0(5), b = 1364.4(5), c = 1111.5(5) pm, ß = 126.22(5)° (T = —150 °C, Z — 2, space group P2i/c). The gallium atoms pairwisely occupy selected tetrahedral holes between layers formed by the cesium and selenium ions. This structural principle leads to the formation of double tetrahedral isolated [Ga2Se6] 6-ions.
	Reference	Z. Naturforsch. 38b, 181—182 (1983); eingegangen am 15. Oktober 1982
	Published	1983
	Keywords	Cesium Selenogallate, Crystal Structure, Thermal Properties
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0181.pdf
	Identifier	ZNB-1983-38b-0181
	Volume	38

35	Author	W. Preetz, H. Schulz	Requires cookie*
	Title	Die Schwingungsfeinstruktur der elektronischen Absorptionsspektren von [0s02(ox)2] 2 -und [0s02(mal)2] 2 - Vibrational Fine Structure on the Electronic Absorption Spectra of [0s02(ox)2] 2 -and [0s02(mal)2] 2
	Abstract	Bisoxalato-osmate(VI), Bismalonato-osmate(VI), UV-VIS Spectra, Vibrational Fine Structure The complexes (TBA)2[Os02(ox)2] and (TBA)2[0s02(mal)2] have been prepared and characterized. The IR and Raman frequencies are assigned according to point group D2h. The electronic absorption spectra measured on thin films of the solid complex salts on silica discs at 10 K show well resolved vibrational fine structure. Two very weak bands (e: 4-58) in the visible region are assigned to d-d transitions from the singlet ground state ag 2 (dxy) to a triplet and singlet term of the equivalent ji* orbitals b2g/b3g (dxz, dyz). The two more intense band systems (e: 500-1500) in the UV region are attributed to CT transitions from b2u/b3u n orbitals of tbe oxo ligands to the lowest unoccupied orbitals b2g/b3g of the central ion. These electronic transitions couple with vs(0s — 0) as indicated by the main progression of about 700 cm -1 . In comparison to the vibrational ground state this lowered frequency is caused by population of antibonding n levels. The loosening of the 0s = 0 bonds in the excited state is demonstrated by high anharmonic constants (—2.5 to —10.5 cm -1) and the estimated bond lengthening of about 12 pm. Moreover the vibrational fine structure of the malonato complex shows many combination modes of i's(0s = 0) with other symmetric fundamentals. Due to lower site symmetry in the solid state the CT transitions of the malonato compound are split into 2 components with a spacing of about 200 cm-1 .
	Reference	Z. Naturforsch. 38b, 183—189 (1983); eingegangen am 11. Oktober 1982
	Published	1983
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0183.pdf
	Identifier	ZNB-1983-38b-0183
	Volume	38

36	Author	Reinhold Tacke, Hartwig Lange, Anke Bentlage, WilliamS. Sheldrick, Ludger Ernst	Requires cookie*
	Title	2.2.5.5-Tetraorganyl-1.4-dioxa-2.5-disilacyclohexane 2,2,5,5-Tetraorganyl-l,4-dioxa-2,5-disilacyclohexanes
	Abstract	The 2,2,5,5-tetraorganyl-l,4-dioxa-2,5-disilacyclohexanes 2a-2c were prepared by condensation of the corresponding (hydroxymethyl)diorganylsilanes 1 a-1 c. The constitu-tion of the heterocycles was confirmed by elemental analyses, cryoscopic measurements, mass spectrometry, and NMR-spectroscopic (X H, 13 C) investigations. The molecular struc-ture of 2 b was determined by X-ray diffraction analysis.
	Reference	Z. Naturforsch. 38b, 190—193 (1983); eingegangen am 11. Oktober 1982
	Published	1983
	Keywords	l, 4-Dioxa-2, 5-disila-cyclohexane Ring System, Synthesis, Structure
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0190.pdf
	Identifier	ZNB-1983-38b-0190
	Volume	38

37	Author	JaapN. Louwen, RonaldR. Andréa, DerkJ. Stufkens, Ad Oskam	Requires cookie*
	Title	He(I) and He(II) Photoelectron Spectra of Some L3MCo(CO)4 Complexes (M = Si, Ge, Sn, Pb and L = Cl, Br and CH3)
	Abstract	The He(I) and He(II) photoelectron spectra of L3MCo(CO)4 complexes (M = Si, Ge, Sn, and Pb and L = Cl, Brand CH3) are reported. Bands attributable to the metal-cobalt bond, cobalt 3d and CO orbitals are assigned in agreement with a qualitative MO model. Rela-tivistic effects and He(I)/He(II) intensity ratios prove to be important in assigning these ultraviolet photoelectron spectra.
	Reference	Z. Naturforsch. 38b, 194—202 (1983); received October 3 1982
	Published	1983
	Keywords	Metal-Metal Bond, UPS, Cobalt Complexes, Relativistic Effects, Ionization Potentials
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	Identifier	ZNB-1983-38b-0194
	Volume	38

38	Author	Herbert Binder, Wassilios Diamantikos	Requires cookie*
	Title	Die Reaktion zwischen Schwefel bzw. Kohlenstoflfdisulfid und Natriumboranat in Aminen. Zwei neue Darstellungsmethoden für Alkylaminborane, Ra_nHnN-BH3 The Reaction between Sulfur or Carbon Disulfide Respectively, and Sodium Borohydride in Amines Two New Methods for the Preparation of Alkylamine Boranes, R3_nH"N-BH3
	Abstract	Amine Boranes Sodium borohydride reacts with sulfur in ammonia, primary, secondary or tertiary amines with hydrogen evolution to give the corresponding amine boranes, R3_nH"N-BH3. The reaction of sodium borohydride with carbon disulfide in the presence of a tertiary amine yields compounds R3N-BH3. The formulation of these reactions has been established by HB and m NMR.
	Reference	Z. Naturforsch. 38b, 203—207 (1983); eingegangen am 3. September/26. Oktober 1982
	Published	1983
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0203.pdf
	Identifier	ZNB-1983-38b-0203
	Volume	38

39	Author	Dieter Weber, Karl Peters, Hans Georg, Schnering, Ekkehard Fluck	Requires cookie*
	Title	Kristallstruktur yon Pyrrolidinium-bis(diisopropylphosphinoyl)phosphid, einem System mit zweifach koordiniertem Phosphor Crystal Structure of Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide, a System with Bicoordinated Phosphorus
	Abstract	Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide crystallizes triclinically in the space group Pi with a = 1019.6(8), b = 1271.5(4), c = 999.5(7) pm, a = 100.90(5)°, ß = 91.24(5)°, y = 99.10(5)° and Z = 2 formula units. The mean P-P bond length is 212.2 pm and hence shorter than in derivates in which the electron pairs of the bicoordi-nated phosphorus atom are bonded to one or two M(CO)5-groups. Additional p.-z-d* bonding explains the shortening of the P-P bond.
	Reference	Z. Naturforsch. 38b, 208—211 (1983); eingegangen am 13. Oktober 1982
	Published	1983
	Keywords	Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide, Crystal Structure, NMR Spectra
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	Identifier	ZNB-1983-38b-0208
	Volume	38

40	Author	Eberhard Bothe, Nien Man, Dietrich Schuchmann, Schulte-Frohlinde, Clemens Von Sonntag	Requires cookie*
	Title	Hydroxyl Radical-Induced Oxidation of Ethanol in Oxygenated Aqueous Solutions. A Pulse Radiolysis and Product Study
	Abstract	y-Radiolysis of N20-saturated water or photolysis of aqueous H2O2 provided a source of OH radicals. These radicals react with ethanol by preferentially abstracting an H atom at C-l. In the presence of oxygen these radicals are converted into the corresponding peroxyl radicals. The a-hydroxyethylperoxyl radicals decay by first order kinetics (k = ki + k2 [OH -]) acetaldehyde and H02/H+ + 01 being the products (ki (20 °C) = 50 ± 10 s" 1 , Ea = 66 ± 7 kJ-mol -1 , k2= (4± 1) X 10 9 M -1 s -1). In competition (favoured by low pH, low tem-perature and high dose rate) they also decay by second order kinetics (2k3 = (7 ^ 2) x 10 8 M~ 1 s _1). The most important route in the bimolecular decay leads to acetaldehyde, acetic acid and oxygen (ca. 75%). This route might largely be concerted (Russell mech-anism), but there might also be a contribution from the disproportionation of oxyl radicals within the solvent cage. There is also a concerted route that leads to two molecules of acetic acid and to hydrogen peroxide (ca. 10%). Another pathway (ca. 15%) yields two oxyl radicals and oxygen. The former may either decompose into formic acid and methyl radicals (ca. 5%) or rearrange into 1,1-dihydroxyethyl radicals (ca. 10%). These radicals add oxygen and the resulting peroxyl radicals rapidly decompose into acetic acid and HO2. The reaction of a-hydroxyethylperoxyl radicals with H02/02 radicals appears to be slow (k» 10 7 M-is-i).
	Reference	Z. Naturforsch. 38b, 212—219 (1983); received September 28 1982
	Published	1983
	Keywords	Pulse Conductometry, Peroxyl Radicals, Oxyl Radicals, Radical Rearrangements, Radiation Chemistry
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	Identifier	ZNB-1983-38b-0212
	Volume	38

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