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Facet   section ZfN Section B:Volume 046  [X]
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1991 (265)
81Author    HansW. Rauwald, Karsten Lohse, JanW. BatsRequires cookie*
 Title    Neue Untersuchung über Inhaltsstoffe aus Aloe-und Rhamnus-Arten, XIII [1] Konfigurations-und Konformationsbestimmung der diastereomeren Oxanthron-C-glucosyle 10-Hydroxyaloin A und B A New Investigation on Constituents o f Aloe and Rham nus Species, XIII [1] Determ ination of Absolute Configurations and Conform ations of the Two Diastereomeric Oxanthrone-C-glucosyls 10-Hydroxyaloin A and B  
  Reference    Z. Naturforsch. 46b, 551—5 (1991); eingegangen am 15. Oktober 1990 
  Published    1991 
  Keywords    Rhamnus purshianus D C, 10-H ydroxyaloins A /B, Oxanthrone Glucosyls, Quinonoids, Anthranoids 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0551.pdf 
 Identifier    ZNB-1991-46b-0551 
 Volume    46 
82Author    L. Jayabalan, P. ShanmugamRequires cookie*
 Title    N O T IZ E N Synthesis of 5-Methoxycarbonyl- 1 l-methylfuro(2,3-c)acridan-6( 11 H)ones  
 Abstract    Furoacridanone A lkaloids, 1 -M ethyl-2-chloro-3(1 -methoxycarbonyl-2(furo-2-yl)-1 -ethenyl)quinolin-4(1 H)ones, 5-M ethoxycarbonyl-l l-methylfuro(2,3-c)-acridan-6(11H)ones 
  Reference    Z. Naturforsch. 46b, 558 (1991); received October 23 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0558_n.pdf 
 Identifier    ZNB-1991-46b-0558_n 
 Volume    46 
83Author    Rolf Minkwitz, Volker Gerhard, FrauRequires cookie*
 Title    Über Dimethylhaloniumsalze -CH3C1CH3+M F6 , CH3BrCH3+M F6 , CH3ICH3+MF6" -und Dimethylmethylendiiodoniumsalze CH3ICH2ICH32+(M F6 )2 (M = As, Sb)  
 Abstract    The dimethylhalonium salts (C H 3)2X +A~ (X = Cl, Br, I; A " = A sF 6-, SbF6~, Sb2F n ~) are synthesized by methylation o f the corresponding methylhalides C H 3X or dihalomethanes C H 2C12 and CH2Br2 in the system S 0 2/C H 3F /M F 5. The analogous reaction o f C H 2I2 results in the formation o f dimethylmethylendiiodonium hexafluorometallates C H 3IC H ,IC H 32+(M F 6")2 (M = As, Sb). The salts are characterized by Raman-, IR-and N M R-spectroscopy. 
  Reference    Z. Naturforsch. 46b, 561—5 (1991); eingegangen am 21. Juni 1990 
  Published    1991 
  Keywords    Preparation, Raman Spectra, IR Spectra, N M R Spectra 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0561.pdf 
 Identifier    ZNB-1991-46b-0561 
 Volume    46 
84Author    AxelG. Udatb, PeterH. Öhnb, Rüdiger Kniep, -A, Albrecht Rabenau, FrauRequires cookie*
 Title    Die Kristallstrukturen der isotypen Verbindungen Ba3|M oN 4] und Ba3[WN4| The Crystal Structures of the Isotypic Compounds Ba3[M oN4] and Ba,[WN4]  
 Abstract    Bariumnitridomolybdate(VI) and -tungstate(VI), Preparation, Crystal Structure The isotypic ternary com pounds Ba3[M oN 4] and Ba,[W N4] were prepared by reaction o f the transition metals with barium (Ba3N 2, resp.) under nitrogen. The crystal structures were determined by single crystal X-ray diffraction: Ba3[M oN 4] (Ba3[W N4]): Pbca; Z = 8; a = 1083.9(3) pm (1091.8(3) pm), b = 1030.3(3) pm (1037.5(3) pm), c = 1202.9(3) pm (1209.2(4) pm). The structures contain isolated tetrahedral anions [M N 4]6" (M = M o, W) which are arranged in form o f slightly distorted hexagonal layers and which are stacked along [0 1 0] with the sequence (• • • AB • • •). Two o f the three Ba atoms are situated between, the third one is placed within the layers o f [M N 4]-groups. In this way the structures can be derived from the N a3As structure type. 
  Reference    Z. Naturforsch. 46b, 566—5 (1991); eingegangen am 20. Juni 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0566.pdf 
 Identifier    ZNB-1991-46b-0566 
 Volume    46 
85Author    W. Olfdieter, A. Schenk, Christine Neuland-Labude, FrauRequires cookie*
 Title    M (IV )  
 Abstract    -M (O)-Zweikernkomplexe (M = Ti, Zr, M' = Cr, M o, W) mit verbrückenden Phosphinocyclopentadienid-, Chlorid-und Thiolatliganden [1] M (IV)—M '(O) Dinuclear Complexes (M = Ti, Zr, M ' = Cr, M o, W) with Bridging Phosphinocyclopentadienide, Chloride, and Thiolate Ligands [1] A series o f ligand-bridged dinuclear complexes [MM'Cl(/<-Cl)(//-C5H4PR-,)2(CO)3] (M = Ti, Zr, M' = Cr, M o, W, R = C6H 5, 4-C6H4CH3) was synthesized from the mononuclear pre­ cursors MC12(C5H 4PR2)2 and M'(CO)3L3. Donor ligands L cleave the chloro bridge either re-versibly (L = acetonitrile) or irreversibly (L = CO, P(OM e)3) with formation o f the adducts [M M 'Cl2(//-C 5H4PR 2)2(CO)3L], At titanium a terminal CL ligand can be replaced by 'BuO~ whereas MeS~ substitutes both terminal and bridging Cl". The dinuclear complexes [M M '(SM e)(//-SM e)(//-C,H 4PRo),(CO)3] thus formed are inert towards CO or P(OM e),. 
  Reference    Z. Naturforsch. 46b, 573—5 (1991); eingegangen am 12. Oktober 1990 
  Published    1991 
  Keywords    Group IV M etals, Group VI Metals, Dinuclear Complexes 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0573.pdf 
 Identifier    ZNB-1991-46b-0573 
 Volume    46 
86Author    Herbert Binder, Wolfgang Ehmann, Konstantinos Dermentzis, FrauRequires cookie*
 Title    Einfache Synthese von 1,2,4,3,5-Trithiadiborolan aus B2H6 und Rohsulfan. Monohydroborierung von Alkinen mit H 2B2S3  
 Abstract    Trithiadiborolane, M onohydroboration o f Alkynes B2H 6 has been shown to react with H2S2, H2S3 or crude sulphane oil in toluene to form selec­ tively 1,2,4,3,5-trithiadiborolane. The reaction o f crude sulphane has been utilized to achieve a convenient synthesis o f toluene solutions o f H 2B2S3 which are stable on standing at 0 C. A mechanism for the sulphur chain degradation in polysulphanes is proposed. M onohydrobora­ tion o f alkynes proceeds by cis addition from the less hindered side o f the triple bond. Both hydrogen atom s o f H2B2S3 react with 1-or 2-alkynes thus leading to 3,5-dialkenyl-1,2,4,3,5-trithiadiborolane derivatives, respectively. 
  Reference    Z. Naturforsch. 46b, 581—5 (1991); eingegangen am 20. Juni 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0581.pdf 
 Identifier    ZNB-1991-46b-0581 
 Volume    46 
87Author    Amal Haoudi-M, Ahmed Azzah, Hans-Georg Mazzah, M. Schmidt, H. Athias Noltemeyer, W. Erbert, RoeskyRequires cookie*
 Title    Synthese und Struktur von achtgliedrigen Titan-und Zirkon-haltigen Siloxanringen Synthesis and Structure of Eight-Membered Titanium and Zirconium Containing Siloxane Rings  
 Abstract    Reaction o f (fBu)2Si(OH)2 with TiCl4, TiBr4, T il4, and ZrCl4 affords eight-membered rings 
  Reference    Z. Naturforsch. 46b, 587—5 (1991); eingegangen am 23. Juli 1990 
  Published    1991 
  Keywords    Titanium, Zirconium, Siloxane, Heterocycles 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0587.pdf 
 Identifier    ZNB-1991-46b-0587 
 Volume    46 
88Author    Requires cookie*
 Title    [K(222-crypt)  
 Abstract    l2TeSe10 und [Ba(222-crypt)(en)|TeSe10*en0 5: Verbindungen mit einem neuen spirozyklischen T eSe102"-Polychalkogenid-Anion 
  Reference    Z. Naturforsch. 46b, 593 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0593.pdf 
 Identifier    ZNB-1991-46b-0593 
 Volume    46 
89Author    Requires cookie*
 Title    Schwingungsspektren und Normalkoordinatenanalyse der heteroleptischen Halogenohexaborate B6Xn\ 6_n2~, n = 1 -5 ; X =£ Y = Cl, Br, I  
  Reference    Z. Naturforsch. 46b, 602 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0602.pdf 
 Identifier    ZNB-1991-46b-0602 
 Volume    46 
90Author    Requires cookie*
 Title    Einfluß des Kations auf die Struktur des |S i( 0 2C6H4)2F |0 -Anions: Struktur von IK(18-Krone-6)|[Si(02C6H 4)2Fl  
  Reference    Z. Naturforsch. 46b, 609 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0609.pdf 
 Identifier    ZNB-1991-46b-0609 
 Volume    46 
91Author    Requires cookie*
 Title    Bis-und Tris(aluminium)alkan-Verbindungen, II: 1,1-und l,2-Bis(chIoro/ethylaluminium)ethan  
  Reference    Z. Naturforsch. 46b, 615 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0615.pdf 
 Identifier    ZNB-1991-46b-0615 
 Volume    46 
92Author    Evamarie Hey-Hawkinsa, Hans Georg Von SchneringRequires cookie*
 Title    Crystal Structure of K[CpFe(CO)2l: Helical Chains with Strong Cation-Anion Interactions between the Helices  
  Reference    Z. Naturforsch. 46b, 621 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0621.pdf 
 Identifier    ZNB-1991-46b-0621 
 Volume    46 
93Author    Requires cookie*
 Title    Synthese und Kristallstruktur von 2,4-Di-terf-butyl-3-pentafluorphenyl-l,2,4,3-thiadiazaboretidin  
  Reference    Z. Naturforsch. 46b, 625 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0625.pdf 
 Identifier    ZNB-1991-46b-0625 
 Volume    46 
94Author    Requires cookie*
 Title    D a rstellu  
 Abstract    n g und K ristallstru k tu r von (S e 4)2(S b 4F 17)(S b F 6)3 Preparation and Crystal Structure of (Se4)2(Sb4F i7)(SbF6)3 R olf M inkwitz*a, Horst B orrm annb und Joachim Nowicki1 1 
  Reference    Z. Naturforsch. 46b, 629 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0629.pdf 
 Identifier    ZNB-1991-46b-0629 
 Volume    46 
95Author    MichelM. Égnamisi-BélombéRequires cookie*
 Title    Synthesis and X-Ray Crystal Structure of the Double Salt, Bis(tetramethylammonium) T riiodide fra/is-Diiodobis(ethanedial dioximato(l -)-N ,N )cobaltate(III). (N(CH3)4)2I3(CoI2(GH )2)  
  Reference    Z. Naturforsch. 46b, 635 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0635.pdf 
 Identifier    ZNB-1991-46b-0635 
 Volume    46 
96Author    W. S. Sheldrick, C. M. ArtinRequires cookie*
 Title    Darstellung und Kristallstrukturen von Phenyliodoantimonaten(III). Strukturkorrelation für Halogenoantimonate(III) Preparation and Crystal Structures of Phenyliodoantim onates(III). Structural Correlation for Haloantim onates(III)  
 Abstract    L ehrstuhl für A nalytische Chem ie, R u h r-U n iv ersität B ochum , U niversitätsstraße 150, D-4630 Bochum 1 
  Reference    Z. Naturforsch. 46b, 639 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0639.pdf 
 Identifier    ZNB-1991-46b-0639 
 Volume    46 
97Author    Nikolaos KlourasRequires cookie*
 Title    P h A s (C 5H 4)2T iC l2: D a s erste A rsen-überbrückte T ita n o cen o p h a n PhAs(C5H 4)2TiCl2: The First Arsenic-Bridged Titanocenophane  
  Reference    Z. Naturforsch. 46b, 647 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0647.pdf 
 Identifier    ZNB-1991-46b-0647 
 Volume    46 
98Author    Nikolaos KlourasRequires cookie*
 Title    Pentasulfid-Chelate mit überbrücktem Vanadocen-Gerüst Pentasulfide Chelates with Bridged Vanadocene System  
 Abstract    ie d er U niversität P atra s, G r-2 6 0 0 0 P atras, G riechenland Z. N atu rfo rsch . 46b, 6 5 0 -6 5 2 (1991); eingegangen am 8. O k to b e r 1990 Vanadocenophanes, Si,Si-Dimethyl-1,1 '-silandiylbis(cyclopentadienyl)vanadium(IV) Pentasulfide, G e,G e-D im eth y l-l ,r-germ an d iy lb is(cy clo p en tad ien y l)v an ad iu m (IV) Pentasulfide T he [l]v an ad o cen o p h an es M e2E (C 5H 4)2V Cl2 (lc) (E = Si, G e) have been prep ared by the m etallation o f the bis(cyclopentadienyl) c o m p o u n d s M e2E (h '-C 5H 5)2 (la) with butyllithium and subsequent reaction with vanadium (IV) chloride. T he com plexes lc react w ith an excess o f (N H 4)2S5 to give M e2E (C 5H 4)2VS5 (ld), the first p entasulfide chelate with a bridged v a n ad o ­ cene system. 
  Reference    Z. Naturforsch. 46b, 650 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0650.pdf 
 Identifier    ZNB-1991-46b-0650 
 Volume    46 
99Author    Andreas Eggert, Erwin RiedelRequires cookie*
 Title    Verteilung und Valenz der Kationen in Spinellsystemen mit Eisen und Chrom, II. Zur Stöchiometrie des Spinells FeCr20 4 Distribution and Valence of the Cations in Spinel Systems with Iron and Chromium, II. On the Stoichiometry of the Spinel FeC r20 4  
  Reference    Z. Naturforsch. 46b, 653 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0653.pdf 
 Identifier    ZNB-1991-46b-0653 
 Volume    46 
100Author    Requires cookie*
 Title    Synthesis and Characterization of a New Technetium(V) Complex with Butane-2,3-dionemonoxime and Some PPP Calculations  
  Reference    Z. Naturforsch. 46b, 662 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0662.pdf 
 Identifier    ZNB-1991-46b-0662 
 Volume    46 
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