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1Author    Horst Sabrowsky, Alfred Thimm, Petra Vogt-M, ErtensRequires cookie*
 Title    NaLiS: Ein weiteres Interalkalimetallsulfid NaLiS: A nother Inter Alkaline M etal Sulphide  
 Abstract    The colourless com pound NaLiS has been prepared and its structure determ ined by single crystal X-ray diffraction techniques. The very hygroscopic NaLiS crystallizes in the tetragonal space group P4/nmm (Z = 2) with the cell parameters a = 402.6(1), c = 649.5(2) pm. The structure was solved from 720 counter reflections (216 symmetry independent re­ flections) by differential Fourier syntheses. Refining gives a least squares residue of 0.024. The a«/z'-PbFCl-type structure is characterized by layers o f LiS4/4-tetrahedra connected by their edges in two dim ensions and 2 interspersed layers of sodium. 
  Reference    Z. Naturforsch. 40b, 1759 (1985); eingegangen am 19. A ugust 1985 
  Published    1985 
  Keywords    Sodium Lithium Sulphide, Crystal Structure, X -R ay 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-1759_n.pdf 
 Identifier    ZNB-1985-40b-1759_n 
 Volume    40 
2Author    Requires cookie*
 Title    On the Nonexistence of a Simple  
 Abstract    ^-O xo-diphosphorane Involving two 1,3.5.7-Tetram ethyl-1.3.5.7-tetra-aza-4A''-phospha-spiro[3.3]heptane-2.6-dione Groupings: Preparation and Structure of a A5P —O —A5P D iphosphorane Doubly Bridged with N .N '-D im ethylurea D ietm ar Schomburg3 +, Ulrich W erm uthb und Reinhard Schmutzlerb * a G esellschaft für B iotechnologische Forschung mbH, M ascheroder W eg The reaction between the spiro-chlorophosphorane, [ 0 = C (N M e)2]2PX (X = C l), and the related trimethylsiloxy com pound (X = O SiM e3) was expected to give rise to the formation o f a ^-oxo-bis(spirophosphorane), [ [ 0 = C (N M e)2]2P]20 . Instead, an isom er o f the expected com ­ pound, with two N.N '-dim ethylurea bridges across a A5P —O —A5P bond system was obtained. The identity o f the product was established by spectroscopic means (IR , N M R . mass spectroscopy), and by a single crystal X-ray diffraction study. 
  Reference    Z. Naturforsch. 41b, 207 (1986); eingegangen am 8. Juli/17. O ktober 1985 
  Published    1986 
  Keywords    Penta-co-ordinate Phosphorus, X -R ay, Crystal Structure 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0207.pdf 
 Identifier    ZNB-1986-41b-0207 
 Volume    41 
3Author    D. Ieter Fenske, Kurt MerzweilerRequires cookie*
 Title    Ein Beitrag zur Synthese neuer chiraler Phosphanliganden Synthesis of a New Chiral Phosphine Ligand  
 Abstract    The new chiral diphosphine 2 was synthesized from mucochloric acid. The structure o f the NiL-com plex 7 was determ ined by single crystal X-ray analysis. 7 crystallizes in the orthorhom bic space group P 2 ,2 |2 |. The lattice constants (at 180 K) are: a — 914.1(2); b = 1422.0(3); c — 4112.5(10) pm. 
  Reference    Z. Naturforsch. 44b, 879 (1989); eingegangen am 6. März 1989 
  Published    1989 
  Keywords    X -R ay, Chiral Phosphine, Nickel-Phosphine Complex 
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 TEI-XML for    default:Reihe_B/44/ZNB-1989-44b-0879.pdf 
 Identifier    ZNB-1989-44b-0879 
 Volume    44 
4Author    PeterG. Jones, G. Raham Bodwell, Henning HopfRequires cookie*
 Title    Preparation and X-Ray Structure of [2.2](5,6)Indanocyclophane  
 Abstract    The title compound 3 was prepared by pyroly­ sis o f the corresponding bis-sulfone 2 and subject­ ed to X-ray structural analysis; space group P I, a = 477.0(1), b = 625.6(2), c = 1363.6(3) pm, a = 82.79(2), ß = 83.43(2), y = 78.18(3)°, Z = 1, R = 0.058 for 900 reflections. The molecule contains a crystallographic symmetry centre, thus confirm­ ing the anti configuration. 
  Reference    Z. Naturforsch. 45b, 1213—1215 (1990); received February 20 1990 
  Published    1990 
  Keywords    C yclophane, Indanocyclophane, Configuration, X -R ay 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1213_n.pdf 
 Identifier    ZNB-1990-45b-1213_n 
 Volume    45 
5Author    Dieter Seilmann, Peter Lechner, M. Atthias, Moll, Falk KnochRequires cookie*
 Title    Synthese des offenkettigen Thioetherthiols S8' -H 2 und der Kronenthioether S 8 , B zo2-12 S 4, B zo4-24 S 8 und B zo6-3 6 S 12; Röntgenstrukturanalyse von Bzo4-2 4 S 8 [1] Syntheses o f the Open-Chain Thioetherthiol 'S8'-H 2 and the Crown Thioethers 'S8', Bzo2-12 S 4, Bzo4-24 S 8 and Bzo6-36 S 12; X-Ray Structure o f Bzo4-24 S 8  
 Abstract    The octadendate thioetherthiol 'S8' -H 2 was synthesized by alkylation o f the tetradendate thioetherthiol 'S4' -H 2. Further products were the disulfide 'S8', resulting from the oxidation o f 'S8' -H 2, and the crown thioethers Bzo2-1 2 S 4 , Bzo4-24S 8 and Bzo6-36S 12. Bzo4-24S 8 was characterized by X-ray structure determination. 
  Reference    Z. Naturforsch. 46b, 209 (1991); eingegangen am 30. Juli 1990 
  Published    1991 
  Keywords    Open-Chain Thioetherthiols, Crown Thioethers, X -R ay 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0209.pdf 
 Identifier    ZNB-1991-46b-0209 
 Volume    46 
6Author    Anja Edelmann, Sally Brooker, N. Orbert Bertel, M. Athias Noltemeyer, H. Erbert, W. Roesky, GeorgeM. Sheldrick, FrankT. EdelmannRequires cookie*
 Title    Strukturuntersuchungen an Diaryldichalkogeniden: Die Molekülstrukturen von |2  
 Abstract    ,4,6-(CF3)3C6H 2S]2,12,4,6-M e3C6H 2TeI2 und |2-M e2N-4,6-(CF3)2C6H 2Te]2 Structural Investigations of Diaryl Dichalcogenides: The Molecular Structures o f [2,4,6-(CF3)3C6HiS],, [2,4,6-Me3C6H ?Te]2 and [2-Me2N-4,6-(CF3)2C6H 2Te]2 The molecular structures o f [2,4,6-(CF3)3C6H 2S]2 (1), [2,4,6-M e3C6H 2Te]2 (2) and [2-Me2N -4,6-(C F 3)2C6H2Te]2 (3) have been determined by X-ray diffraction. Crystal data: 1: orthorhombic, space group P 2,2,2,, Z = 4, a = 822.3(2), b = 1029.2(2), c = 2526.6(5) pm (2343 observed independent reflexions, R = 0.042); 2: orthorhom bic, space group Iba2, Z = 8, a = 1546.5(2), b = 1578.4(2), c = 1483.9(1) pm (2051 observed independent reflexions, R = 0.030); 3: m onoclinic, space group P 2,/c, Z = 4, a = 1118.7(1), b = 1536.5(2), c = 1492.6(2) pm, ß = 98.97(1)° (3033 observed independent reflexions, R = 0.025). 
  Reference    Z. Naturforsch. 47b, 305 (1992); eingegangen am 12. Ju li/9. September 1991 
  Published    1992 
  Keywords    Sulfur, Tellurium, Disulfides, Ditellurides, X -R ay 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0305.pdf 
 Identifier    ZNB-1992-47b-0305 
 Volume    47 
7Author    Joachim Fuchs, Rosemarie PalmRequires cookie*
 Title    Struktur und Schwingungsspektrum der Heteropolyverbindung K13[KP2W2o0 7 2 ]' jcH20 Structure and Vibrational Spectrum of the Heteropoly Com pound K 13[KP2W 20O 72]-.x:H2O  
 Abstract    The title com pound crystallizes m onoclinicly in the space group P 2 1/c with lattice parameters a = 13.522 Ä, b = 22.379 Ä, c = 15.071 Ä und ß = 95.95°. In the polyanion two a-PW 9034 
  Reference    Z. Naturforsch. 39b, 757 (1984); eingegangen am 19. Januar 1984 
  Published    1984 
  Keywords    X -R ay, Tungstophosphate, Preparation, H eteroatom Potassium, Vibrational Spectrum 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0757.pdf 
 Identifier    ZNB-1984-39b-0757 
 Volume    39 
8Author    Prostereogenic Mo-Centers, Dieter Sellmann+, Franz Grasser, Falk Knoch, M. Atthias, MollRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden, LXV  
 Abstract    Diastereospeziflsche Alkylierung von [M o(NO)2(S2')2]2 zu chiralen |M o(N O)2(/RS4')l-Komplexen mit chirotopen und prostereogenen Mo-Zentren** Transition Metal Complexes with Sulfur Ligands, LXV* Diastereospecific Alkylation o f [M o(NO)2('S2')2]2" to Chiral [M o(NO)2('RS4')] Complexes with Chirotopic In order to investigate how chirotopicity and stereogenicity o f metal centers influence the enantioselectivity o f metal centered reactions the stereogenic properties o f metal centers in chiral complexes have to be varied without changing their electronic character. Diastereospe­ cific alkylation o f [M o(N O)2('S2')2]2~ by racemic 1,2-dibromopropane and 1,2-dibromobutane yields the title complexes [M o(N O)2('M eS4')] and [M o(N O)2('EtS4')] that differ from the parent compound [M o(N O)2('S4')] with respect to the stereogenicity o f the metal center and allow fu­ ture investigations o f the question raised above. 
  Reference    Z. Naturforsch. 46b, 1343—1348 (1991); eingegangen am 21. März 1991 
  Published    1991 
  Keywords    M olybdenum Nitrosyl Sulfur Complexes, X -R ay, Diastereospecific Alkylation, Stereochemistry 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1343.pdf 
 Identifier    ZNB-1991-46b-1343 
 Volume    46 
9Author    Alfred Gieren, Viktor Lamm, RobertC H Addon, M. Artin, L. Kaplan, M.John Perkins, Peter FlowerdayRequires cookie*
 Title    Vergleichende Röntgenstrukturanalysen von Naphthothiadiazinen und isovalenzelektronischen Naphthotriazinen-I-nstitut für B iochem ie, A bt. Strukturforschung I, D-8033 Martinsried  
 Abstract    Röntgenstrukturanalysen von Acenaphthyleno[5,6-cd][l,2,6]-thiadiazin, 2-Methyl-2 H-acenaphthyleno[5,6-de]-l,2,3-triazin und Naphtho[l,8-de]thiadiazin Comparison of Naphthothiadiazines and Isoelectronic Naphthotriazines by X-Ray Structural Analysis X-Ray Structural Analyses of A cenaphthyleno[5,6-cd][l,2,6]thiadiazine, 2-M ethyl-2H -acenaphthyleno[5,6-de]-l,2,3-triazine and N ap h th o [l,8-de]thiadiazine We have performed an X-ray structural analysis of the sulphur diimide 1 and the isoelectronic triazine 2. In addition we found two crystal m odifications o f the sulphur diimide 3, which is an analogue o f the previously characterized 4, but the m odification suitable for X-ray analysis (tetra­ gonal, ß) was disordered. From the bond lengths o f 1 and 2 results, that in both cases there is only 
  Reference    Z. Naturforsch. 39b, 975 (1984); eingegangen am 27. D ezem ber 1983 
  Published    1984 
  Keywords    Sulphur D iim ides, 1, 2, 3-Triazines, X -R ay, Bonding Relationships 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0975.pdf 
 Identifier    ZNB-1984-39b-0975 
 Volume    39 
10Author    H. Ildebert, W. Agner, M. Anfred, F. Ischer, H. Erm AnRequires cookie*
 Title    Kalanchoe daigremontiana H am et et Perr. ( Crassulaceae)  
  Reference    Z. Naturforsch. 40b, 1226 (1985); received April 30 1985 
  Published    1985 
  Keywords    Kalanchoe daigremontiana, B ufadienolides, X -R ay, Daigrem ontianin, Daigredorigenin, Bersaldegenin Derivatives 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-1226_n.pdf 
 Identifier    ZNB-1985-40b-1226_n 
 Volume    40 
11Author    Siegfried Lochschmidta, G. Erhard, M. Üllerb, BrigitteH. Uberh, Alfred SchmidpeteraRequires cookie*
 Title    ,2-Diphosphonio-diphosphirane 1,2-Diphosphonio-diphosphiranes  
  Reference    Z. Naturforsch. 41b, 444—454 (1986); eingegangen am 27. N ovem ber 1985 
  Published    1986 
  Keywords    Am inosubstituted Triphosphenium Ions, Diphosphiranes, Tetraphosphane-1, 4-diium Ions Phosphoniophosphinidene Transfer, X -R ay 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-0444.pdf 
 Identifier    ZNB-1986-41b-0444 
 Volume    41 
12Author    M. Veith, R. RosierRequires cookie*
 Title    Alkoxistannate, II [1] Tri(te/*-butoxi)alkalistannate(II): Darstellung und Strukturen Alkoxistannate, II [1] Tri(rerr-butoxi)alkalistannates(II): Synthesis and Structures  
 Abstract    Tri(terf-butoxi)alkalistannates (M (O rBu)3Sn, M = Li, Na, K, Rb, Cs) are obtained by reaction of alkali-fert-butanolates with tindi-terf-butoxide. If M equals Li or Na (1, 2) molecular com ­ 
  Reference    Z. Naturforsch. 41b, 1071 (1986); eingegangen am 12. F eb ru ar/17. März 1986 
  Published    1986 
  Keywords    Synthesis, Polycyclic C om pounds, Crystal Structure, M olecular Structure, X -R ay 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-1071.pdf 
 Identifier    ZNB-1986-41b-1071 
 Volume    41 
13Author    Joseph Grobe, Anita Krummen, Bernt Krebs, Mechtild LägeRequires cookie*
 Title    Alternativ-Liganden XXVIII [1]  
 Abstract    Neue Komplexe M (CO)4L mit Dipodliganden des Typs R2M (O C H 2PM e2)*(CH2CH2PM e2)2_x (M = Cr, M o, W; M = Si, Ge; R = M e, Ph; x = 0 -2) Alternative Ligands XXVIII [1] Novel Complexes M (CO)4L with Dipod Ligands of the Type R2M '(O C H 2PM e2)v(C H 2C H 2PM e2)2_x (M = Cr, Mo, W; M' = Si, Ge; R -Me, Ph; jc = 0 -2) The coordinating properties o f dipod ligands o f the type R2M (O C H 2PM e2)T (CH 2CH 2PM e2)2_r (R = Me, Ph; M' = Si, Ge; x = 0 -2) have been investigated by the preparation o f the novel rä-M (C O)4L complexes (M = Cr, M o, W). They are obtained under mild conditions in cyclo­ hexane or «-hexane solution by the reaction o f the norbornadiene precursors M (CO)4N B D with the corresponding ligands. In case o f the Ge containing ligands the dilution principle was used to improve the yields o f the mononuclear derivatives. The rate o f the N B D replacement is mainly determined by the central atom M (M o > W > Cr) and only little by R, M' or x . The new com pounds have been characterized by analytical (C, H) and spectroscopic investigations ('H, 3IP N M R , IR, MS). The ligand properties are discussed on the basis o f spectroscopic data (in particular coordination effects) and the molecular structure o f the complexes Cr(CO)4[Ph2Si(OCH 2PM e2)2] (12) and M o(CO)4[Me2G e(C H 2C H 2PM e2)2] (28) obtained by X-ray diffraction studies. 
  Reference    Z. Naturforsch. 47b, 310 (1992); eingegangen am 5. August 1991 
  Published    1992 
  Keywords    D ipod Phosphane Ligands, 'H N M R Spectra, 31P N M R Spectra, X -R ay 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0310.pdf 
 Identifier    ZNB-1992-47b-0310 
 Volume    47 
14Author    Dieter Sellmann+, Werner Prechtel, Falk Knoch, M. Atthias, MollRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden, XC* Synthese, Säure/Base-und Redoxreaktionen von [Ni(/N 2 H2 S2 /)1: auf der Suche nach Modellkomplexen für die Nickelzentren in Hydrogenasen und CO- Dehydrogenasen. ('N2 H2 S2'2_ = l,2-Ethandiamin-N,N'-bis(2-benzolthiolat)(2-)) Transition Metal Complexes with Sulfur Ligands, XC* Synthesis, Acid Base and Redox Reactions of [Ni('N2H 2S2')]: A Search for Model Complexes for the Nickel Sites in Hydrogenases and CO-Dehydrogenases. ('N 2H 2S2'2_ = 1,2-Ethanediamine-N,N'-bis(2-benzenethiolate)(2 -) )  
  Reference    Z. Naturforsch. 47b, 1411 (1992); eingegangen am 27. März 1992 
  Published    1992 
  Keywords    Nickel Thiolate-Amine Complexes, Reactions, Thioether-Am ine Ligands, Palladium and Platinum Derivatives, X -R ay 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1411.pdf 
 Identifier    ZNB-1992-47b-1411 
 Volume    47 
15Author    Michael Farkens, ThomasG. Meyer, Ion Neda, R.Alf Sonnenburg, Christian Müller, AxelK. Fischer, PeterG. Jones, Reinhard SchmutzlerRequires cookie*
 Title    Zur Chemie der l,3,5-Triaza-2-phosphinan-4,6-dione. Teil VI*. Darstellung von l,3>5-Triaza-2 A3  
 Abstract    , l,3,5-Triaza-2 A4-und 1,3,5-T riaza-2 A5-phosphinan-4,6-dionen Chemistry o f the l,3,5-Triaza-2-phosphinane-4,6-diones. Part VI. Synthesis o f l,3,5-Triaza-2^3-, 1,3,5-Triaza-2A4-and l,3,5-Triaza-225-phosphinane-4,6-diones The reactions o f 1,3,5-trimethylbiuret with dicyclohexylam inodichlorophosphine and with pyrrolidinodichlorophosphine furnished the triazaphosphinane-diones 1 and 2. Oxidation 
  Reference    Z. Naturforsch. 49b, 145—164 (1994); eingegangen am 29. Juli 1993 
  Published    1994 
  Keywords    1, 3, 5-Triorgano-Substituted l, 3, 5-Triaza-2-phosphinan-4, 6-diones, Oxidation Reactions, N M R Spectra, M ass Spectra, X -R ay 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0145.pdf 
 Identifier    ZNB-1994-49b-0145 
 Volume    49