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1989 (280)
41Author    Peer Berges, Jens Kudnig, G. Ünter Klar, Enrique Sánchez, M. Artínez, RicardoD. Íaz CallejaRequires cookie*
 Title    2 :l-Com plexes of 2,3,7,8-Tetram ethoxychalcogenanthrenes with Tetracyanoethene  
 Abstract    CT C om plexes of 2,3,7,8-T etram ethoxychalcogenanthrenes (V n2E E ') and Tetracyanoethene (T C N E), Synthesis, X -R ay, M N D O and H A M 3 Calculations, Electrical Conductivities 
  Reference    Z. Naturforsch. 44b, 211 (1989); eingegangen am 15. Septem ber 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0211 
 Volume    44 
42Author    H. Ans, Hofmann, Hamid DjafariRequires cookie*
 Title    H eterocyclic Seven-M embered Ring Compounds, XXXIV [1] A Simple Synthesis of 1-Benzoxepine and 1-Benzothiepine  
 Abstract    D ou ble-B on d Isom erization, Seven-M em bered Ring K etones, R eduction. D ehydration, H eterocyclic Seven-M em bered Ring Com pounds 
  Reference    Z. Naturforsch. 44b, 220 (1989); eingegangen am 19. Septem ber 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0220 
 Volume    44 
43Author    Requires cookie*
 Title      
 Abstract    A erosiles, Surface Linked Fluorescent Groups 5-D im ethylam ino-l-naphthalene-carbonic acid chloride (1), the analog o f dansylchloride, is synthesized. With diazom ethane the diazoketone 2 is obtained. The m odified aerosil A is formed by the interaction of 1 with amino-aerosil. The density o f the coverage is available a) chem ically by dissolving the inorganic matrix of A with H 2F2 and spectroscopic determ ination of the formed «-butylam ide 9, b) by fluorescence spectroscopy and c) by U V spectroscopy. Silanole groups both in organic substituted com pounds and in aerosil react with the fluorescent silanes 6 and 7 using CsF/im idazole-catalysis forming the corresponding siloxanes according to (4 b) and (8). , The m odified aerosils C, D and E are prepared in this way and characterized. The functionalization of am ino-aerosil with 7-chloro-4-nitrobenzeno furazane (10) leading to the m odified aerosil B is unsatisfactory. 
  Reference    Z. Naturforsch. 44b, 225 (1989); eingegangen am 22. Juni 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0225 
 Volume    44 
44Author    AfafA A Elbannany, LailaI. IbrahimRequires cookie*
 Title    Synthesis of 1-Benzoylpyrroline Derivative and Related Compounds  
 Abstract    Pyrroline D erivatives Several new pyrroline derivatives were prepared from 4-am ino-l-benzoyl-3-benzylidene-4-pyr-roline-2-one (4). 
  Reference    Z. Naturforsch. 44b, 233 (1989); received May 11 1987/August 12 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0233 
 Volume    44 
45Author    Petra Krieger-Beck, A. Ndreas Brodbeck, Joachim SträhleRequires cookie*
 Title    Synthesis and Structure of K2A u3, a New Phase in the System Potassium —Gold  
 Abstract    K2A u 3 is obtained from the elem ents in a sealed Ta am poule as air-sensitive needles with a golden lustre. It crystallizes in the orthorhom bic space 
  Reference    Z. Naturforsch. 44b, 237—239 (1989); eingegangen am 18. O ktober 1988 
  Published    1989 
  Keywords    Dipotassium Triauride, Synthesis, Crystal Structure 
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 Identifier    ZNB-1989-44b-0237_n 
 Volume    44 
46Author    EckehardV. Dehmlow, Christiane SauerbierRequires cookie*
 Title    N ote on Carbonyl Derivatives with a Chiral Phosphorylhydrazine  
 Abstract    (2S,4S,5R)-3,4-D im ethyl-2-hydrazido-5-phenyl-l,3,2-oxazaphospholidin-2-oxide. Chiral K etones, H PLC , 31P NM R Spectra Hydrazones o f chiral and achiral ketones with enantiom erically pure phosphorylhydrazine 4 are prepared and analysed by 3IP NM R spectroscopy • and HPLC for their diastereoisom eric purity. 
  Reference    Z. Naturforsch. 44b, 240 (1989); received O ctober 20 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0240_n 
 Volume    44 
47Author    PeterG. JonesRequires cookie*
 Title    The Space Group o f (TTM-TTF)2+(A uC lJ)2 [TTM-TTF = Tetra(methylthio)tetra- thiofulvalene]  
 Abstract    O cto b er 10, 1988 T etra(m eth ylth io)tetrath io fu lvalen e T h e space group o f the title com pound is p robably C2/m rather than the previously reported C2. 
  Reference    Z. Naturforsch. 44b, 243 (1989); received 
  Published    1989 
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 Identifier    ZNB-1989-44b-0243_n 
 Volume    44 
48Author    Yuzo Nishida, Hideki KikuchiRequires cookie*
 Title    High Catalytic Activity of Yanadium(Y) Oxo-polymers for Oxidative Cleavage o f Catechol  
 Abstract    V anadium (V) Oxo-Polym ers, Catalytic Activity, O xidative Cleavage o f Catechol Som e vanadium (V) oxo-polym ers such as cis-V 2W40 194^ and V 1(,0 286" exhibit high catalytic activi­ ty for the oxidative cleavage o f 3,5-di-r-butyl-catechol. A chelated species of catechol to two va­ nadium atoms has been assumed as an active inter­ mediate based on the spectroscopic results. 
  Reference    Z. Naturforsch. 44b, 245 (1989); received August 31/N ovem ber 2 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0245_n 
 Volume    44 
49Author    Brigitte Eisenmann, Roland ZaglerRequires cookie*
 Title    Selenoantimonate  
 Abstract    (V): Darstellung und Struktur von Na3SbSe4, K3SbSe4 und [Ba(en)4]2[Ba(en)3](SbSe4)2 Selenoantim onates(V): Preparation and Crystal Structure of N a3SbSe4, K3SbSe4 and [Ba(en)4]2[Ba(en)3](SbSe4) 2 The crystal structures of N a 3SbSe4, K3SbSe4 and [B a(en)4]2[B a(en)3](SbSe4)2 contain isolated tetrahedral anions SbSe43 -, which are the first exam ples o f selenoantim onates(V). Na3SbSe4 
  Reference    Z. Naturforsch. 44b, 249 (1989); eingegangen am 24. Oktober 1988 
  Published    1989 
  Keywords    Selenoantim onates, Preparation, Crystal Structure 
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 Identifier    ZNB-1989-44b-0249 
 Volume    44 
50Author    SusanneM. Üller, Ulf ThewaltRequires cookie*
 Title    Heteronukleare  
 Abstract    Mehrkernkomplexe. Darstellung und Struktur von Komplexen mit den Kationen [MII{(O H)2CoIII(en)2}3]5+, M = Ni, Zn, Mg Polynuclear Mixed-Metal Complexes. Preparation and Structures of Complexes with the Cations [MII{(O H)2C oin(en)2}3]5+, M = Ni, Zn, Mg H eteronuclear C om plexes, Ligand [(en)2C o (O H)2] + Reaction o f [(en)2C o(H 20) 2](C 1 0 4)3 with the dichlorides o f nickel, magnesium , and zinc, leads at an pH o f ca. 8 to the heterom etallic, isom orphous com plexes [Mn{(O H)2C oIII(en)2} 1](C 104)4C l-3 H 20 . The central m eta l(2 +) cations of these com plexes are 
  Reference    Z. Naturforsch. 44b, 257 (1989); eingegangen am 27. Oktober 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0257 
 Volume    44 
51Author    W. U. Rland, P. Plambeck-Fischer, M. G. RupeRequires cookie*
 Title    Preparation and Crystal Structure of NdSe] g  
 Abstract    Synthesis, Crystal Structure N dSe, 9 has been prepared as grey, strongly reflecting platelets by reaction o f elem ental n eo­ dymium with selenium in the ratio 1 :2 and subsequent chemical vapour phase transport with iodine. It crystallizes in the tetragonal space group P 42/n with a = 925.36(7), c — 1679.2(3) pm and Z = 20. The structure determination results in a formulation o f N d S e , 9 as N d 2n(S e (I)2)8S e (I)2II]2Se(II)2o, where the defect layer built from the Se(I)2_ and S e(I)2~ ions corresponds to the F layer in the PbFCl substructure. 
  Reference    Z. Naturforsch. 44b, 261 (1989); eingegangen am 14. Novem ber 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0261 
 Volume    44 
52Author    R. Oland Boese, D. Ieter Bläser, M. Bolatiana Andrianarison, Uwe KlingebielRequires cookie*
 Title    Lithio-di-terf-butylfluorsilyl-te/t-butylphosphan — Kristallstruktur und Reaktionen Lithio-di-terf-butylfluorosilyl-ferr-butylphosphane — Crystal Structure and Reactions  
 Abstract    Di-/er/-butylfluorosilyl-fe/7-butylphosphane (1) reacts with «-C 4H gLi to give the lithium salt (C M e3)2S iF —PLi(TFIF)3CM e3 (2) and butane. The crystal structure o f 2 has been determ ined. Fluorosilylphosphanes of the type (C M e3)2SiFP(R)C M e3 [R = SiM e3 (5), SiCl2Me (6). SiCl3 (7), SiF2CA H 5 (8), B F N (SiM e3)2 (9), SiClM eP(CM e3)SiF(CM e3)2 (10)] are obtained in the reaction of 2 with halogenosilanes and -borane. 6 and 7 undergo rearrangement via chloro-fluoro exchange reaction to give (C M e3)2S iC l-P (S iC lR F)C M e3 [R = Cl (11), Me (12)]. 
  Reference    Z. Naturforsch. 44b, 265 (1989); eingegangen am 7. N ovem ber 1988 
  Published    1989 
  Keywords    F luorosilylphosphanes, Lithium Salt, Crystal Structure Phosphasilene, Fluoro-C hloro Exchange 
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 Identifier    ZNB-1989-44b-0265 
 Volume    44 
53Author    Fritz Preuss, Edith Fuchslocher, Edith Leber, Willi TowaeRequires cookie*
 Title    Reaktion des Oxovanadium(V)-trichIorids mit terf-Butylamin und silylierten Derivaten Reaction of O xovanadium (V ) Trichloride with terf-Butylamine and Silylated Derivatives  
 Abstract    A m ino and Im inovanadium (V) C om pounds, Preparation, 5IV NM R Spectra The reaction o f V O C l3 with rm -butylam ine and silylated derivatives has been studied. 0 = V C 1 2[N'C4H 9(R)] (R = SiM e3, SiM e2NH'C4H 9), 0 = V (0 S i M e 3)2Cl and binuclear vanadium (V) com plexes with bridging oxo and nitrogen ligands have been prepared; their spec­ troscopic data ('H N M R ,51V N M R , IR) are reported. A simple route for preparing'C4H 9N =V C 13 and ['C4H 9N = V (0)C 1]" is described including com plex formation with pyridine and chloride ions. 
  Reference    Z. Naturforsch. 44b, 271 (1989); eingegangen am 18. Oktober 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0271 
 Volume    44 
54Author    JörnM. Üller, Corinna Hänsch, Joachim PickardtRequires cookie*
 Title    ;r-01efin-Iridium-Komplexe, XV [1] Kationische Bis(2.3-dimethylbutadien)iridium-L-Verbindungen mit verschiedenen Donorliganden L jr-Olefin Iridium Complexes, XV [1] Cationic Bis(2.3-dim ethylbutadiene)iridium-L Compounds with Various D onor Ligands L  
 Abstract    (dm b)2IrCH , (dm b = 2.3-dim ethylbuta-l,3-diene) reacts with Ph,CBF4 in C H 2C12 to form the 
  Reference    Z. Naturforsch. 44b, 278 (1989); eingegangen am 10. Oktober 1988 
  Published    1989 
  Keywords    Synthesis, IR Spectra, NM R Spectra, Mass Spectra, Crystal Structure 
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 Identifier    ZNB-1989-44b-0278 
 Volume    44 
55Author    H. Ubert Schmidbaur, Johann RottRequires cookie*
 Title    Zur direkten Synthese von Organobromgermanen aus Methylenbromid und Germanium/Kupfer-Gemischen D irect Synthesis of Organobromogermanes from M ethylenebromide and G erm anium /Copper Mixtures  
 Abstract    A lkylbrom ogerm anes, Synthesis, C V D Feeding G as, G erm anium /Copper Mixtures From the copper-catalyzed reaction o f germanium powder with dibrom om ethane at 310 °C a mixture o f alkylbrom ogermanes is obtained. The major products are CH 3G eB r3, Br3G eC H 2Br 
  Reference    Z. Naturforsch. 44b, 285 (1989); eingegangen am 30. N ovem ber 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0285 
 Volume    44 
56Author    BerndW. Rackmeyer, KlausH. Orchler, Hong Zhou, Michael VeithRequires cookie*
 Title    Dynamisches Verhalten dimerer 1,3,2,4A2-Diazasilastannetidine und -plumbetidine in Lösung — eine Multikern-NMR-Studie Dynamic Behaviour of Dimeric 1,2,3,4A2-Diazasilastannetidines and -plumbetidines in Solution — a M ultinuclear NMR Study  
 Abstract    D iazastannylenes, D iazaplum bylenes, Dynam ic M ultinuclear NM R L 3-D iisopropyl-2,2-dim eth yl-l,3,2,4A 2-diazasilastannetidine (l b) and -plumbetidine (2 b) are dimeric [ (l b) 2, (2 b)2] in solution. A t room temperature the structure o f (l b) 2 is fluxional. The dynamic behaviour is interpreted — on the basis o f 'H . I3C, :ySi and ll9Sn NM R data — as an intramolecular process in which the four-m em bered rings keep their identity. Such a process involves either concerted opening o f the two coordinative Sn —N bonds and mutual slippage o f the two rings, or consecutive cleavage o f one o f the coordinative Sn —N bonds and rotation about the other one. A t room tem perature the dimer (2 b)2 is in equilibrium with its monomer 2 b, whereas at low temperature the dynamic process corresponds to that established for (l b) 2. In solutions which contain a mixture o f the dimers (l b) 2 and (2 b) 2, the presence of the mixed dimer lb/2 b can be proved unam biguously by consistent 29Si, "ySn and 2"7Pb NM R data. 
  Reference    Z. Naturforsch. 44b, 288 (1989); eingegangen am 9. Novem ber 1988 
  Published    1989 
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 Volume    44 
57Author    Hans-Ulrich Hummel, Hermann MeskeRequires cookie*
 Title    Uber Verbindungen subvalenter Hauptgruppenmetallkationen mit Dithiolaten, 3. Mitteilung [1] Die Kristallstruktur von [As(C6H5)4 ]2[Pb(S2C=C(CN)2)2 ] Compounds of Subvalent Main Group Metal Cations with Dithiolates, Part 3 [1] Crystal Structure of [As(C6H5)4]2[Pb(S2C=C(CN)2)2]  
 Abstract    B is-l,l-dicyanoeth ylen e-2,2-dithiolatop lu m bate(II), Crystal Structure 
  Reference    Z. Naturforsch. 44b, 293 (1989); eingegangen am 14. N ovem ber 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0293 
 Volume    44 
58Author    M. Somer, W. Hönle, H. G. Von SchneringRequires cookie*
 Title    Darstellung, Kristallstruktur und Schwingungsspektren von Cs3A s7 und Cs3(NH3)A s7 Syntheses, Crystal Structure and Vibrational Spectra of Cs3As7 and Cs3(NH3)As7  
 Abstract    Cs3A s7, a com pound with cage-like A s73" anions, has been prepared from the elem en ts in sealed quartz am poules at 820 K. The ruby-red com pound undergoes a first order phase transition at 640 K and is obtained as m icrocrystalline samples. The structure o f the low-tem perature a-m odification is not known, but /3-Cs3A s7 belongs to the plastically crystalline ß -R b 3P7 type o f 
  Reference    Z. Naturforsch. 44b, 296 (1989); eingegangen am 15. Novem ber 1988 
  Published    1989 
  Keywords    Tricesium heptaarsenide, Tricesium am m oniateheptaarsenide, Crystal Structure, Vibrational Spectra, H eptaarsanortricyclene Anion 
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 Identifier    ZNB-1989-44b-0296 
 Volume    44 
59Author    Yuzo Nishida, Miyuki Masumotob, Yutaka MoriaRequires cookie*
 Title    Crystal Structure of a Binuclear Copper(II) Complex with ji-Alkoxo and |i-Pyridonato Bridges. Effect of the Dihedral Angle on the Superexchange Interaction  
 Abstract    Binuclear C opper(II) C om plex, Superexchange Interaction, ^-Pyridonate Bridge The crystal structure o f the binuclear copper(II) com plex. [Cu2(L)(2-pyridonato)] was deter­ mined by X-ray diffraction, where H 3(L) represents the Schiff base ligand derived from 1,3-di-am inopropane-2-ol and acetylacetone. Two copper(II) ions are bridged by alkoxide and 2-pyrido-nate groups with a C u —Cu separation o f 3.249(2) Ä . Ferrom agnetic interaction is found to be operating in this com plex, which is attributed to the small dihedral angle (121°) between the two planes containing the copper(II) ion. 
  Reference    Z. Naturforsch. 44b, 307 (1989); received A ugust 1/O ctober 21 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0307 
 Volume    44 
60Author    Dieter Sellmann, Georg Pöhlmann, Falk Knoch, Matthias MollRequires cookie*
 Title    Ubergangsmetallkomplexe Properties and X-Ray Structures  
 Abstract    mit Schwefelliganden, XLII* [M o(NO)(NR2)(dttd)]: Metall—Amido-Komplexe mit rotationsstabilen M—NR2-Doppelbindungen (R = H, Me, Et; dttd2-= 2,3,8,9-Dibenzo-l,4,7,10-tetrathiadecan(2—)); Synthese, Eigenschaften und Röntgenstrukturanalyse Transition Metal Complexes with Sulfur Ligands, XLII* [Mo(NO)(NR2)(dttd)]: Metal Amido Complexes with Rotationally Stable M—NR2 Double Bonds (R = H, Me, Et; dttd2-= 2,3,8,9-Dibenzo-l,4,7,10-tetrathiadecane(2—)); Synthesis, M olybdenum , Sulfur A m ido C om plexes, Synthesis, X -R ay Spectra In order to study the properties o f sulfur coordinated transition metal centers, [M o(N O)(C l)(d ttd)] (1) (dttd2-= 2,3,8,9-d ibenzo-l,4,7,10-tetrathiadecan e(2 —)) was synthe­ sized. It shows no reaction with A gP F 6, but it reacts very rapidly even at low temperatures with liquid amm onia and dialkylam ines H N R 2 (H N M e2, H N E t2) yielding the corresponding am idocom plexes [M o (N O)(N R 2)(dttd)] (R = H 4, Me 2, Et 3). For these reactions an associative m echanism is suggested. X-ray structure analyses o f [M o(N O)(C l)(dttd)] (1) and [M o(N O)(N M e2)(dttd)] (2) show the M o centers to be coordinated pseudo-octahedrally by two 
  Reference    Z. Naturforsch. 44b, 312 (1989); eingegangen am 13. O ktober 1988 
  Published    1989 
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 Identifier    ZNB-1989-44b-0312 
 Volume    44 
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