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1991 (265)
21Author    A.A B SchemeRequires cookie*
 Title    F ^ S = ( /OR  
  Reference    (Z. Naturforsch. 46b, 126 [1991]) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0126_n.pdf 
 Identifier    ZNB-1991-46b-0126_n 
 Volume    46 
22Author    Requires cookie*
 Title    Über den Einbau von AI(III), G a(III) und In(III) in das Calcium -Fluorapatit-Gitter  
  Reference    (Z. Naturforsch. 46b, 129 [1991]) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0129_n.pdf 
 Identifier    ZNB-1991-46b-0129_n 
 Volume    46 
23Author    Requires cookie*
 Title    Synthesen von l , 3 -D i t h i o l -2 -o n -D e r i v a t e n , 2-Ethylthio-l,3-dithiolium- tetrafluoroboraten und Thieno[2,3-d|-l,3-dithiol-2-thionen  
  Reference    Z. Naturforsch. 46b, 133 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0133.pdf 
 Identifier    ZNB-1991-46b-0133 
 Volume    46 
24Author    Requires cookie*
 Title    Synthese und Kristallstruktur von Dinatrium-di-|/-oxo-bis|trihydroxo-methylantimonat(V)l  
 Abstract    Synthesis and Crystal Structure o f Disodium-di-//-oxo-bis[trihydroxo-methylantimonate(V)] M arkus Wieber*, Udo Simonis, Dieter K raft 
  Reference    Z. Naturforsch. 46b, 139 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0139.pdf 
 Identifier    ZNB-1991-46b-0139 
 Volume    46 
25Author    F.Ekkehardt Hahn, Stefan RupprechtRequires cookie*
 Title    Synthese und Kristallstruktur von [LiCl * 2TH F]2 Synthesis and Crystal Structure o f [LiCl * 2 T H F ]2  
 Abstract    C rystal S tructure, L ithium C hloride T H F A dduct The reaction o f lithiated catechol ligands w ith W (0)C 14 p ro d u ces LiCl as a side product. T he lithium chloride from this reactio n crystallizes as (T H F)2Li(/i-Cl)-,Li(THF)2. The X -ray analysis shows lithium in the center o f a d isto rted te tra h e d ro n m ade u p fro m tw o T H F m ole­ cules and two bridging chlorides w ith d (L i-C l) = 2.342(3) and 2.308(3)Ä . 
  Reference    Z. Naturforsch. 46b, 143—146 (1991); eingegangen am 27. Juli 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0143.pdf 
 Identifier    ZNB-1991-46b-0143 
 Volume    46 
26Author    Hans-F Klein, Herbert Beck, Birgit Hamm, Erschm Itt, Udo Koch, Susanne Koppert, Gerhard CordierRequires cookie*
 Title    Synthesis, Properties, and Structure of a Dinitrogen Bridged Dinuclear Hydridocobalt Complex and its Reactions with 1-Alkynes  
  Reference    Z. Naturforsch. 46b, 147 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0147.pdf 
 Identifier    ZNB-1991-46b-0147 
 Volume    46 
27Author    Requires cookie*
 Title    Struktur des 2,2,4,4-Tetrakis(trifluormethyl)-l,3-diselenetans  
 Abstract    Structure of 2,2,4,4-Tetrakis(trifluorom ethyl)-1,3-diselenetane 
  Reference    Z. Naturforsch. 46b, 157 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0157.pdf 
 Identifier    ZNB-1991-46b-0157 
 Volume    46 
28Author    Requires cookie*
 Title    Kristallstruktur-V erfeinerungen an Rubidiumtetr afluorometallaten(II): Rb2M F4 (M = M g, Co, Ni)  
  Reference    Z. Naturforsch. 46b, 161 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0161.pdf 
 Identifier    ZNB-1991-46b-0161 
 Volume    46 
29Author    MichelM. Égnamisi-Bélombé, R. Obert, ParfaitM. Assongo BokanjoRequires cookie*
 Title    Pseudo-Polymerization via Symmetric O -H -O Bonding of the Cobaloximatic Acid, Hydro-fra/is-Diiodobis(2,3-butanedione dioxim ato(l-)-N ,N ')cobaltate(III). X-Ray Crystal and Molecular Structure  
  Reference    Z. Naturforsch. 46b, 165 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0165.pdf 
 Identifier    ZNB-1991-46b-0165 
 Volume    46 
30Author    M. Ax, Herberhold, Thomas Triebner, Tristram Chivers, SanthanathanS. KumaravelRequires cookie*
 Title    Arsenic(III) and Antimony(III) Thionylimides  
 Abstract    Thionylimide Compounds, Metal-Substituted Arsenic T hionylim ides+ The metathetical reactions o f potassium thionylimide, K N SO , with arsenic and antimony halides in acetonitrile solution have been used to prepare two series o f arsenic and antimony thionylimides, 'Bu3_"As(NSO)" and 'Bu3_"Sb(NSO)n, respectively, (n = 3, 2, 1). The tert-buty\-substituted compounds are moisture-sensitive oils. The half-sandwich hydrido-metal com plex­ es C pM (CO)3H react with 'BuAs(NSO)2 in T H F solution to give the metallo-arsanes [Cp(CO)3M]As('Bu)(NSO) (M = Cr, M o, W). 
  Reference    Z. Naturforsch. 46b, 169—174 (1991); received July 20 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0169.pdf 
 Identifier    ZNB-1991-46b-0169 
 Volume    46 
31Author    Ulrich Müller, My-Linh Ha-Eierdanz, G. Ertrud, K. Räuter, Kurt DehnickeRequires cookie*
 Title    Synthesen und Kristallstrukturen von [Ph3PN PPh3l2[Fe2Se2(Se5)2| * 2 DM F und IPl^PN PPhJ^C ^C Se^l * 2 DM F Syntheses and Crystal Structures of [Ph3PN PPh3]2[Fe2Se2(Se5)2] * 2 D M F and [Ph3PN PPh3]3[Co3(Se4)6] * 2 D M F Polyselenide Complexes o f Iron(III) and Cobalt(III), Synthesis, Crystal Structure  
 Abstract    The title compounds have been prepared by reactions o f sodium polyselenide solutions in D M F with FeCp(CO)2I, and CoC 12-6 H 20 , respectively, in the presence o f (Ph3P N PPh3)Cl. They form black crystals, which were characterized by X-ray structure determinations. [Ph3PNPPh3]2[Fe2Se2(Se5)2] • 2 D M F: Space group P 2,/c, Z = 2, 2801 observed unique reflex­ ions, R = 0.077. Lattice dim ensions at 20 °C: a = 1091.6(7), b = 1247.3(5), c = 3070(2) pm, ß = 90.77(4)°. In the dimeric anion the Fe atom s are linked via two bridging Se atom s, and each Fe atom is chelated by an Se5 group. In the crystals, there are alternating layers o f cations and anions. [Ph3PN PPh3]3[Co3(Se4)6]-2 D M F : Space group P I, Z = 1, 3549 observed unique reflexions, R = Ö.108. Lattice dim ensions at 20 °C: a = 1496.2(5), b = 1504.8(5), c = 1904.1(6) pm, a = 100.31(2)°,/? = 100.60(2)°, y = 117.18(2)°. In the [Co3(Se4)6]3" ion two [Co(Se4)3]3-units, each with three chelating Se4 groups, are linked to a central C o3+ cation. 
  Reference    Z. Naturforsch. 46b, 175 (1991); eingegangen am 16. August 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0175.pdf 
 Identifier    ZNB-1991-46b-0175 
 Volume    46 
32Author    Johannes BeckRequires cookie*
 Title    Synthese und Kristallstruktur von (TeCl3+)(M oOCl4 ) Synthesis and Crystal Structure of (TeCl3+)(MoOCl4 )  
 Abstract    Trichlorotellurium(+) O xotetrachlorom olybdate(-), Synthesis, Crystal Structure (TeCl3)(M oO C l4) is obtained by the reaction o f TeCl4 and MoOC13 in a sealed ampoule at 180 °C. It forms yellow-green moisture sensitive crystals. The crystal structure determination (lattice constants a = 734.8(1), b = 1281.5(3), c = 1172.2(2) pm, ß = 94.62(2)°, monoclinic space group P 2 ,/c, 2808 unique reflections for 92 parameters, final R = 0.029) shows that (TeCl3)(M oO C l4) consists o f square pyramidal (M oO Cl4_) anions and (TeCl3+) cations. The (MoOC14_) anions are linked by asymmetric chlorine bridges and form centrosymmetric di­ mers (MoOC14)22_ with the oxygen atoms located in the trans positions o f the chlorine bridges. The coordination sphere for the M o atom is a deformed octahedron o f one oxygen and five chlorine atoms. Each trigonal pyramidal (TeCl3+) cation is connected by chlorine bridges to two neighboured (MoOC14)22_ anions resulting in a strongly deformed octahedral environ­ ment o f six chlorine atoms for the Te atom. The MoOC15 and TeCl6 octahedra are linked by edges and corners and form layers parallel to the be plane. Alternatively the structure can be regarded as a close packing o f Cl and O atoms with the layer sequence ABA C, A • • • and M o and Te atom s located in one quater o f the octahedral holes. 
  Reference    Z. Naturforsch. 46b, 183—186 (1991); eingegangen am 19. Juli 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0183.pdf 
 Identifier    ZNB-1991-46b-0183 
 Volume    46 
33Author    Peter KlüfersRequires cookie*
 Title    Die Kristall-und Molekülstrukturen der  
 Abstract    Verbindungen [Cl4_xSn{C o(C O)4}xl mit x = 1 ,2 und 3 The Crystal and M olecular Structures of the Compounds [Cl4_vSn{Co(CO)4} v] with x = 1,2 and 3 The crystal structures o f the com pounds [Cl3SnCo(CO)4] 1, [Cl2Sn{C o(C O)4} 2] 2, and [C lSn{C o(C O)4}3] 3, have been determined by X-ray crystallography. Sn is co-ordinated 
  Reference    Z. Naturforsch. 46b, 187—191 (1991); eingegangen am 16. Juli 1990 
  Published    1991 
  Keywords    Tetracarbonylcobaltio-chloro-stannanes, Tin, Cobalt, Carbonyl, X -R ay Structure 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0187.pdf 
 Identifier    ZNB-1991-46b-0187 
 Volume    46 
34Author    Carsten TschierskeRequires cookie*
 Title    6 a-w-Hexyl-1 a-hydroxymethyl-(4a/?, 8aa)-decahydronaphthalen-2 ß~o\: Synthese und kristallin-flüssige Eigenschaften eines neuen amphiphilen Diols 6 a-ft-Hexyl-1 a-hydroxym ethyl-(4aß, 8 aa)-decahydronaphthalene-2ß-o\: Synthesis and Liquid-Crystalline Properties of a Novel Amphiphilic Diol  
 Abstract    Lyotropic Liquid Crystal, Amphiphilic D iol, Peri-Effect, 6a-A7-Hexyl-l a-hydroxymethyl-(4a/?, 8aa)-decahydronaphthalene-2/?-ol, Anellation The synthesis o f 6a-«-hexyl-l a-hydroxymethyl-(4a/?, 8aa)-decahydronaphthalene-2/?-ol us­ ing a R obinson-Nazarow -anellation followed by a Birch-reduction is described. This com ­ pound exhibits liquid crystalline behaviour in the presence o f water. N o m esom orphic proper­ ties were observed in the absence o f water. 
  Reference    Z. Naturforsch. 46b, 192 (1991); eingegangen am 20. August 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0192.pdf 
 Identifier    ZNB-1991-46b-0192 
 Volume    46 
35Author    Jürgen Silberzahn, Hans Pritzkow, HansPeter LatschaRequires cookie*
 Title    Synthese und Kristallstruktur eines l(A5),4(A5)-Diphosphaazulens sowie dreier 1 -Phospha-1,6a-dihy dropentalene Synthesis and Crystal Structure o f a l(/l5),4(^5)-Diphosphaazulene and of Three 1 -Phospha-1,6a-dihydropentalenes  
 Abstract    The reaction o f acetylene-bis(phosphonous-bisdimethylamide) (1) with tetraphenyl-cyclo-pentadienone (2) yields a 1-phospha-1,6a-dihydropentalene (4), which can be sulfurized with CS2 to give the 1-thio-compound 5, and oxidized with H 20 2 to give the 1-oxo-compound 6. With dim ethyl-acetylenedicarboxylate (7) an amazingly stable l (/ 5),4(A5)-diphosphapen-talene (8) is generated, which reacts further with 7 to yield a l(/.5),4 (/5)-diphosphaazulene (9). The preparation o f the new molecules 4, 5, 6, 9 and the crystal structures o f 5 and 9 are reported. 
  Reference    Z. Naturforsch. 46b, 197—201 (1991); eingegangen am 15. Juni 1990 
  Published    1991 
  Keywords    Phosphororganic Azulene and Dihydropentalenes, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0197.pdf 
 Identifier    ZNB-1991-46b-0197 
 Volume    46 
36Author    Z. NaturforschRequires cookie*
 Title    A5,3 A5-Diphosphorine (1 A5,3 A5-Diphosphabenzole)  
 Abstract    , III [1, 2] 1 A5, 3 / 5-Diphosphorines (1 /l5,3 A5-Diphosphabenzenes), III [1, 2] Ekkehard F luck*a, Winfried Plassb, G ernot H eckm annb, H artm ut Böggec und Achim Müllerc 
  Reference    Z. Naturforsch. 46b, 202 (1991); eingegangen am 19. Juni 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0202.pdf 
 Identifier    ZNB-1991-46b-0202 
 Volume    46 
37Author    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 
38Author    AlexanderConstantin Filippou, W. Alter GrünleitnerRequires cookie*
 Title    Säure-induzierte CC-Kupplung von Isocyanid-Liganden in homoleptischen Alkylisocyanid-Komplexen von Mo(0) und W(0) Acid-Induced CC-Coupling of Isocyanide Ligands in Homoleptic Alkylisocyanide Complexes of Mo(0) and W(0)  
 Abstract    fra/?s-Iodo[tetra(ethylisocyanide)][bis(ethylamino)acetylene]molybdenum Iodide, rra/w-Bromo[tetra(te/-?-butylisocyanide)][bis(rer/-butylamino)acetylene]molybdenum Bromide, Isocyanide Ligands, A lkylisocyanide Complexes, Penta(rer?-butylisocyanide)[(N-trimethylsilyl-te>7-butylamino)carbyne]tungsten Trifluoro-m ethanesulfonate 
  Reference    Z. Naturforsch. 46b, 216 (1991); eingegangen am 30. Juli 1990 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0216.pdf 
 Identifier    ZNB-1991-46b-0216 
 Volume    46 
39Author    Yuzo Nishida, Miyuki NasuRequires cookie*
 Title    Redox Interaction between Binuclear Mn2(III/IV) Complexes and Binuclear Mn2(II/II) Complexes  
 Abstract    D epartm ent o f C hem istry, Faculty o f Science, Y am ag ata U niversity, Y am a g a ta 990, Jap an Z. N aturforsch. 46b, 231 -2 3 4 (1991); received July 25, 1990 B inuclear M anganese C om pounds, E lectronic In teractio n , M anganese C om plexes Spectroscopic and ESR studies have revealed th a t redox in teractio n occurs betw een b in u ­ clear M n2(III/IV) complex, [M n20 2(2,2'-bipyridine)4]3+ an d b inuclear M n 2(II/II) complexes, [M n2(L -py)(C H 3C O O)2]+ and [M n2(L -py)C l2]+, in a d ilute acetonitrile solution. E lectrochem i­ cal d a ta suggest th a t the chloride ion plays an ad d itio n al im p o rtan t role in the above reaction. 
  Reference    Z. Naturforsch. 46b, 231 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0231.pdf 
 Identifier    ZNB-1991-46b-0231 
 Volume    46 
40Author    G. Erhard, Koßm Ehl, Jürgen BahrRequires cookie*
 Title    Liquid Crystalline Azomethines and Polyazomethines Containing Azobenzene and Stilbene Units  
 Abstract    In stitu t für O rganische Chem ie d er Freien U niversität Berlin, T a k u stra ß e 3, D-1000 Berlin 33 Z. N atu rfo rsch . 46b , 2 4 5 -2 5 4 (1991); received July 9, 1990 Liquid C rystalline C o m p o u n d s an d Polym ers, A zobenzenes w ith LC -Phases, Stilbenes w ith L C -Phases, A zom ethines w ith LC-Phases A zobenzene an d stilbene derivatives with azom ethine and ester g ro u p s an d polym ers o f c o r­ responding stru ctu res with m esogens possessing three to fo u r a ro m atic system s in their m eso-genic units have been synthesized, characterized and studied for their liquid crystalline p ro p e r­ ties by D SC m easurem ents and o b servation by polarizing m icroscopy. 
  Reference    Z. Naturforsch. 46b, 245 (1991) 
  Published    1991 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0245.pdf 
 Identifier    ZNB-1991-46b-0245 
 Volume    46 
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