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1992[X]
1Author    Z. NaturforschRequires cookie*
 Title    Übergangsmetall-substituierte Diphosphene, XXIV [ 1 ]  
 Abstract    Cheletrope [1 +4]-Cycloaddition von Azodicarbonsäureestern und -amiden an das metallsubstituierte Diphosphen (i75-C5M e5)(CO)2F e -P = P -Mes* (Mes* = 2,4,6-*Bu3C6H 2). Struktur von (i/5-C5M e5)(CO)2F e -P (= P -M e s *)|N (C 0 2E t)N = C (0 E t)Ö | Transition M etal Substituted Diphosphenes, XXIV [1] Cheletropic [1+4] Cycloaddition of Azodicarboxylic Esters and Amides to the Metal Substituted Diphosphene (^5-C5Me5)(CO)2F e -P = P -M e s * (Mes* = 2,4,6/Bu3C6H 2). Structure o f (^5-C5M e5)(CO)2F e -P(= P -M es*)[N (C 0 2Et)N = C (0 E t)0 ]. L othar Weber*, Holger Bastian, Achim Müller [2] und H artm ut Bögge [2] The diphosphenyl complex (>75-C 5M e5XCO)2F e -P = P -M e s * (1) (M es* = 2,4,6rBu3C6H2) 
  Reference    Z. Naturforsch. 47b, 231—2 (1992); eingegangen am 9. Juli/26. September 1991 
  Published    1992 
  Keywords    Diphosphene, Cycloaddition, Azodicarboxylates, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0231.pdf 
 Identifier    ZNB-1992-47b-0231 
 Volume    47 
2Author    PeterG. Jones, M. Artina, Näveke Und Arm, BlaschetteRequires cookie*
 Title    Polysulfonylamine, XXXI [1] Kristallstruktur von (1-Trichlormethylthio- 4-dimethylaminopyridinium)dimesylamid bei -9 5 °C Polysulfonylamines, XXXI [1] Crystal Structure o f 1-Trichloromethylthio- 4-dimethylaminopyridinium Dimesylamide at -9 5 °C  
 Abstract    The crystal structure o f the title com pound was determined at -9 5 °C. It crystallizes in space group P 1 with a = 577.5(3), b = 820.2(3), c = 1916.6(8) pm, a = 83.34(2), ß = 82.83(2), y = 83.61(2)° and Z = 2. The final R value was 0.034 for 3019 unique observed reflections. The presence o f aggregates o f four ions (two cations and two an­ ions) in the solid state is observed, with short cat-ion-anion contacts Sn — 0 (290 pm) and Cl --O (298 pm). The bond lengths o f the 4-dimethyl-aminopyridinium moiety o f the cation suggest a semiquinoid resonance form with a double bond to the nitrogen o f the dim ethylam ino group and two localized double bonds in the ring. The ring, the dimethylamino group (except H atom s) and the Sn atom are coplanar. The S " -N bond length is 170.3 pm, the N -S " -C angle 99.6°. The S ° -C bond is approximately perpendicular to the ring plane. 
  Reference    Z. Naturforsch. 47b, 441—4 (1992); eingegangen am 17. September 1991 
  Published    1992 
  Keywords    Pyridinium, Dimesylamide, Polysulfonylamine, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0441_n.pdf 
 Identifier    ZNB-1992-47b-0441_n 
 Volume    47 
3Author    M. Ustafa Ate, HansJoachim Breunig, KlausH. Ebert, Rose Kaller, M. Artin Dräger, Ulrich BehrensRequires cookie*
 Title    Strukturen von Tetramesityldistiban (Mes4Sb2) und Trimesitylstiban (M es3Sb) Structures of Tetramesityldistibane (Mes4Sb2) and Trimesitylstibane (Mes3Sb)  
 Abstract    The crystal structure of tetramesityldistibane consists of isolated Mes4Sb2 molecules in the trans conformation (average distance S b -C 219 pm, distance S b -S b 284.9(1) pm, angles SbC2 9 7 °-100°, Sb2C 92°-109°). In the structure o f trimesitylstibane there are stacks of isolated tri­ gonal pyramidal Mes,Sb molecules (average distance S b -C 218 pm, angles SbC-, 104 -106°). 
  Reference    Z. Naturforsch. 47b, 503—508 (1992); eingegangen am 18. O ktober 1991 
  Published    1992 
  Keywords    Tetramesityldistibane, Trimesitylstibane, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0503.pdf 
 Identifier    ZNB-1992-47b-0503 
 Volume    47 
4Author    Oligophosphine Ligands, Xxxiv, Lutz DahlenburgRequires cookie*
 Title    Oligophosphan-Liganden, XXXIV** Organoplatin(II)-Komplexe mit (+ )-(l *S)-l,2-Bis(diphenylphosphino)- 1 -phenylethan-Koordination  
 Abstract    O rganoplatinum (II) Complexes with (+)-(1 5)-1,2-Bis(diphenylphosphino)-1-phenylethane Coordination A ndrea Saare Reaction o f (C8H 12)P t(C H 2C M e3)2 with (+)-(l S)-Ph2P CH (Ph)C H 2P Ph2, S-PHEPHO S, gave (5'-PH EPH O S)Pt(C H2C M e3)2 (1). Cleavage o f one o f the P t -C bonds o f this com pound with m ethanolic HC1 yielded (5-PH EPH O S)PtC l(CH 2C M e3) (2) which could be converted to (5-PH EPH O S)PtH (C H 2C M e3) (3) by treatment with N a[H B (O M e)3], The com plexes so ob­ tained were characterized by N M R spectroscopy (preferentially 31P) as well as by an X-ray structure analysis performed on the dineopentyl derivative 1. While thermal generation o f (S'-PHEPHOS)Pt(O) from 3 in the presence o f H C = C C (0)0 C M e 3 produced the alkyne co­ 
  Reference    Z. Naturforsch. 47b, 247 (1992); eingegangen am 24. Juli 1991 
  Published    1992 
  Keywords    Chiral Bis(phosphine) Ligand, Platinum Complexes, X -Ray, Thermolysis 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0247.pdf 
 Identifier    ZNB-1992-47b-0247 
 Volume    47 
5Author    ThomasD. Smith, PeterG. Jones, Reinhard SchmutzlerRequires cookie*
 Title    The Role of Elimination Processes in the Reaction of Substituted Ureas and Thioureas with Chlorides of Mono-and Bifunctional Acids  
  Reference    Z. Naturforsch. 47b, 526—532 (1992); received August 29 1991 
  Published    1992 
  Keywords    Reactive Halides, Substituted Ureas, Elimination Reactions, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0526.pdf 
 Identifier    ZNB-1992-47b-0526 
 Volume    47 
6Author    Andreas Ansorge, DavidJ. Brauer, Hans Bürger, F. Rank Dörrenbach, Burkhard Krum, G. Ottfried PawelkeRequires cookie*
 Title    Complexes of (CF3)3B with Sterically Crowded Amines. Unexpected Side Products from the Trifluoromethylation of Cl2BN(f-Bu)(Bz). Crystal and Molecular Structures of (CF3)3BN H(CH 2)6, H O (CF3)2BCH(Ph)NH(f-Bu)(Bz) and Ph(CF3)2BCHN(f-Bu)(Bz)  
 Abstract    Trifluoromethylation o f C12B N (C H 2)6, Cl2B(tmp), tmp = 2,2,6,6-tetramethylpiperidino, and CLBN(r-Bu)(Bz) with three equivalents o f C F3Br/P(NEt2)3 yields the amine complexes (C F 3)3B N H (C H 2)6 (1), (C F 3)3B • N H 2CM e2(CH 2)2CH C M e2 (2) and (C F 3)3B N H 2(Bz) (3). The preparation o f 3 was accompanied by formation o f three unexpected trifluoro-methylboron derivatives X (C F 3)2BCH(Ph)NH(r-Bu)(Bz) (D), X = Br (4), Cl (5), and (Ph)(C F3)2BCH N(/-Bu)(Bz) (6), the latter being formed from 4 by HBr elim ination and rear­ rangement. Reaction o f 4 with H 20 , EtOH, H C O N M e2 and M e3SnH yielded D, X = OH (7), EtO (8), HCOO (9), and (Ph)(CF3)2BCH2N H (/-Bu)(Bz) (10), respectively. The structures o f 1, 6 and 7 have been determined by X-ray diffraction analysis. 
  Reference    Z. Naturforsch. 47b, 772—7 (1992); received November 6 1991 
  Published    1992 
  Keywords    Trifluoromethylation, Borane-Amine Complexes, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0772.pdf 
 Identifier    ZNB-1992-47b-0772 
 Volume    47 
7Author    Dieter Sellmann+, MarcusH. Annakam, Falk Knoch, M. Atthias, MollRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden, XCII*. Oxidation von Thiolat-Amin-zu Schiffbase-Eisen(II)  
 Abstract    Komplexen. Röntgenstrukturanalyse und Reaktivität von [Fe('N2S2')]2 (N2S2'2" = Glyoxal-bis(2 -mercaptoanil)(2 -)) Transition M etal Complexes with Sulfur Ligands, XCII*. Oxidation o f Thiolate Amine to Schiff Base Iron(II) Complexes. X-Ray Structure Analysis and Reactivity of [Fe('N2S2')]2 ('N 2S2'2_ = Glyoxal-bis(2-mercaptoanil)(2-)) Oxidation o f [Fe(CO)2('N 2H2S2')] (1) ('N 2H2S2'2_ = l,2-ethanediam ine-N ,N '-bis(2-benzene-thiolate)(2—)) gave insoluble [Fe('N2S2')]2 (2) ('N2S2'2_ = glyoxal-bis(2-m ercaptoanil)(2-)). Dinuclear, thiolato-bridged 2 was characterized by single crystal X-ray structure analysis. It does not react with CO or H 2, but yields bis or mono adducts with PR 3 (R = M e, rc-Bu, Cy). 
  Reference    Z. Naturforsch. 47b, 1545—1550 (1992); eingegangen am 17. April 1992 
  Published    1992 
  Keywords    Thiolate Am ine, Iron(II) Complexes, Oxidation, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1545.pdf 
 Identifier    ZNB-1992-47b-1545 
 Volume    47 
8Author    Peer Berges, Volker Mansei, G. Ünter KlarRequires cookie*
 Title    Elementorganische Verbindungen mit ö-Phenylenresten, XXIII [1]  
 Abstract    2.3.6.9.10.13-Hexam ethoxy-5,7,12,14-tetrathia-5,7,12,14-tetrahydropentacen -2.3-Dichlor-5,6-dicyan-l,4-benzochinon (1/2) Organometalloidal Com pounds with o-Phenylene Substituents, XXIII [1] 2.3.6.9.10.13-Hexamethoxy-5,7,12,14-tetrathia-5,7,12,14-tetrahydropentacene -2.3-Dichloro-5,6-dicyano-1,4-benzoquinone (1 /2) The title com pound is prepared by com bining hot solutions o f the components. X-ray anal­ ysis shows hexam ethoxytetrathiatetrahydropentacene to act as a bifunctional donor, each o f its dimethoxybis(organylthio)benzene units being in contact with a dichlorodicyanoquinone molecule. In the crystal stacks o f the type D A 2 ,D A 2, with an alternating arrangement o f d o­ nor and acceptor molecules are formed. In the com plex the donor has a m -conform ation (boat form) in contrast to its pure form where the /ra/w-conformation (chair form) is found. 
  Reference    Z. Naturforsch. 47b, 211 (1992); eingegangen am 26. August 1991 
  Published    1992 
  Keywords    Hexamethoxytetrathiatetrahydropentacene, Bifunctional D onor, D ichlorodicyanoquinone, Crystal Structure, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0211.pdf 
 Identifier    ZNB-1992-47b-0211 
 Volume    47 
9Author    R. Castro, M.L D Urá, J.A G Arcía-Vázquez, J. Rom, A. Sousa, A. C. Astiñeiras, W. Hiller, J. SträhleRequires cookie*
 Title    Direct Electrochemical Synthesis of Pyrimidine-2-thionato Complexes of Zinc(II) and Cadmium(II): The Crystal Structure of (l,10-Phenanthroline)bis(pyrimidine-2-thionato)cadmium(II)  
 Abstract    Zn(pymt)2 and Cd(pymt)2 complexes have been obtained by electrochemical oxidation o f anodic zinc or cadmium in acetonitrile solutions o f pyrimidine-2-thione (Hpymt). W hen 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) was added to the electrochemical cell, the ad-ducts [M (pymt)2(bipy)], or [M(pymt)2(phen)] (M = Zn or Cd) were obtained. Crystals o f [Cd(pymt)2phen] are orthorhombic, with a = 9.882(2), b = 12.491(1), c = 16.513(2)A, space group P 2,2,2, and Z = 4. The cadmium atom has distorted octahedral geometry, and one ni­ trogen atom o f each pyrimidine-2-thiolato ligand is not coordinated. 
  Reference    Z. Naturforsch. 47b, 1067 (1992); received January 27 1992 
  Published    1992 
  Keywords    X -Ray, Cadmium Complexes, Pyrimidine-2-thione, Zinc Complexes 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1067.pdf 
 Identifier    ZNB-1992-47b-1067 
 Volume    47 
10Author    Hans Schum, Gert Adm, PaulT. BeurskensbRequires cookie*
 Title    Zum Koordinationsverhalten von Alkinen gegenüber dem [C5H5(P(OCH3)3)2Fe]+-Fragment: Bildung und Struktur carbonylfreier Halbsandwichkomplexe mit Alkin-und Vinylidenliganden Coordination Properties o f Alkynes towards the [C5H 5Fe(P(O C H 3)3)2]+ Fragment: Form ation and Structure o f Carbonylfree Halfsandwich Complexes with Alkyne and Vinylidene Ligands  
 Abstract    The alkyne containing halfsandwich complexes [C5H 5(P(O CH 3)3)2Fe(HC = CC6H 5)]PF6 (Ilia) and [C5H 5(P (0C H 3)3)2Fe(C H 30 2CC = C C 0 2C H 3)]PF6 (Illb) are accessible by thermal acetonitrile substitution from [C5H 5(P(OCH3)3)2Fe(N C C H 3)]PF6 (I) in the presence o f the al­ kyne. U pon standing in solution, Ilia isomerizes to give the isomeric phenylvinylidene com ­ plex [C5H 5(P(O CH 3)3)2Fe(C = C(C6H5)H)]PF6 (IV). The spectroscopic data are presented to­ gether with a discussion o f the X-ray structure determinations o f III b and IV. 
  Reference    Z. Naturforsch. 47b, 1125—1133 (1992); eingegangen am 22. Januar 1992 
  Published    1992 
  Keywords    C yclopentadienyliron-Phosphite Complexes, Alkyne Complexes, Alkyne-Vinylidene Isomerisation, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1125.pdf 
 Identifier    ZNB-1992-47b-1125 
 Volume    47 
11Author    JörgN. Euhausen+, Karl-Ludwig Stork, ElisabethP. Otthoff, W. Olfgang, TremelRequires cookie*
 Title    Synthese und Struktur von Nb0 89Fe0 93Te2 und Ta0,77Fe0990Te2 Synthesis and Structure of N b0 89Fe093Te2 and Ta077Fe090Te2  
 Abstract    N b0g9Fe093Te2 and T a0 77Fe0 90Te2 were prepared by chemical transport reactions. The crys­ tal structures of both com pounds were determined using X-ray single crystal methods. The structures of the layer com pounds N b0g9Fe093Te2 (P mna, Z = 2, a = 7.951(1) Ä, b = 7.241(1) Ä, c = 6.233(1) Ä) and T a077Fe0 90Te2 (P mna, Z = 2, a = 7.890(2) Ä, b = 7.252(2) Ä, c = 6.192(1) Ä) are based on a hexagonal close packing of Te atoms. Approximately one-half of the octahedral holes in this packing are occupied by N b (Ta) atoms, about one-quarter of the tetrahedral holes are occupied by Fe atoms. The relationship to the NiAs structure type is discussed. 
  Reference    Z. Naturforsch. 47b, 1203—1212 (1992); eingegangen am 21. April 1992 
  Published    1992 
  Keywords    Synthesis, X-Ray, M etal-Rich Layer Compounds, Early Transition Metal Tellurides 
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 Identifier    ZNB-1992-47b-1203 
 Volume    47 
12Author    Harald Maelger, Falk Olbrich, Jürgen Kopf, Dirk Abein, Erwin WeissRequires cookie*
 Title    Synthese und Struktur der Basenaddukte von Kupfer(I)-Halogeniden mit Dimethylsulfid und Tetrahydrothiophen Synthesis and Crystal Structure of Lewis Base Adducts of Copper(I)-Halides with Dimethylsulfide and Tetrahydrothiophene  
 Abstract    Copper complexes o f the general formula [(CuX)a(L)J" with L = tetrahydrothiophene (THT) or dimethylsulfide (D M S) and X = Cl, Br or I are formed by direct reaction o f copper(I)halides with the corresponding ligands. All com pounds have been characterized by 
  Reference    Z. Naturforsch. 47b, 1276—1280 (1992); eingegangen am 20. Februar 1992 
  Published    1992 
  Keywords    X-Ray, Lewis Base Adducts, Copper(I)-Halides, Thioethers, Synthesis 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1276.pdf 
 Identifier    ZNB-1992-47b-1276 
 Volume    47 
13Author    G. Ottfried Pawelke, Ralph Dammei, Wolfgang PollRequires cookie*
 Title    Darstellung von Difluormethanimin F2C = N H und F2C = N D durch Hydrolyse von CF3NCO Preparation of Difluoromethanimine F 2C = NH and F 2C = ND by Hydrolyses of C F 3NCO  
 Abstract    The title com pounds have been prepared by controlled hydrolysis o f C F 3NCO in N E t3. Their 13C, 19F and 'H N M R spectra are reported and their IR gas and IR matrix spectra are discussed in terms o f a normal coordinate analysis. The photoelectron spectrum o f F2C = NH is compared with those o f F2C = N F and H 2C = N H revealing a strong fluoro effect. In the solid state F2C = N H is aggregated to infinite zig-zag chains by N • • • H hydrogen bonding. 
  Reference    Z. Naturforsch. 47b, 351 (1992); eingegangen am 17. September 1991 
  Published    1992 
  Keywords    D ifluoromethanimine, N M R Spectra, Vibrational Spectra, Photoelectron Spectra, X-Ray 
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 Identifier    ZNB-1992-47b-0351 
 Volume    47 
14Author    Ursula BentrupRequires cookie*
 Title    Über die thermische Zersetzung von N 2H6[CrF5(H20)] und die neue Verbindung N2H6CrF5  
 Abstract    Thermal decomposition of N 2H 6[CrF5(H 20)] has been investigated by thermoanalytical, X-ray and IR spectroscopic methods. U nder quasi-isobaric conditions the decomposition takes place in several steps. The intermediate N 2H 6C rF 5 has been found which crystallizes monoclinically with a = 555.0 pm, b = 1084.6 pm, c = 777.0 pm,/? = 91.76°. N 2H 6C rF 5 decom­ poses via an am orphous intermediate to give pure rhomboedrical C rF 3 as the final product. One of the intermediate has been identified as chrom ium fluoride am moniate C rF 3-0.4 N H 3. No hydrolysis reactions have been observed. 
  Reference    Z. Naturforsch. 47b, 957—961 (1992); eingegangen am 6. Februar 1992 
  Published    1992 
  Keywords    Hydrazinium Pentafluorochrom ates(III), Fluorochrom ates(III), Thermal Decomposition, IR Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0957.pdf 
 Identifier    ZNB-1992-47b-0957 
 Volume    47 
15Author    AndreasG. Rohm, Ann, Jürgen Riede, Hubert SchmidbaurRequires cookie*
 Title    Gold(I) Complexes of Secondary and Tertiary Amines. Crystal Structure of Triphenylphosphineaurio(I)quinuclidinium Tetrafluoroborate  
 Abstract    The secondary amine piperidine and the tertiary amine quinuclidine (l-azabicyclo[2.2.2]-octane) were reacted in TH F with one equivalent of triphenylphosphinegold(I) tetrafluoro­ borate, [Ph3PAu]+ BF4", to give the m onoaurated ammonium salts of formula [R"NHp_")AuPPh3]+ BF4~ (n = 2, 3). The compounds were obtained as crystalline solids in good yields, and were characterized by IR and N M R spectroscopy as well as mass spectrom ­ etry and elemental analysis. The crystal structure of the quinuclidinium salt was determined (space group Pbca, Z = 8). The analysis shows independent formula units with no intermolec­ ular Au---Au contacts. The A u (I)-N bond (2.11(1) Ä) is significantly longer than the average value found in poly-aurated ammonium salts. 
  Reference    Z. Naturforsch. 47b, 1255—1260 (1992); received June 4 1992 
  Published    1992 
  Keywords    Gold(I)-N itrogen Bond, Secondary Amine, Tertiary Amine, Quinuclidine, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1255.pdf 
 Identifier    ZNB-1992-47b-1255 
 Volume    47 
16Author    C. Hristian, Robl, Stephanie HentschelRequires cookie*
 Title    Unendliche Y2(H2O)10[C6(COO)6]-Ketten in Y2[C6(COO)6] * 14H20  
 Abstract    Infinite Chains o f Y2(H2O)10[C6(COO)6] in Y 2[C6(COO)6] • 14H20 Colourless monoclinic single crystals of Y ^C ^C O O)^ • 14H20 were grown in aqueous silica gel (space group P 2 Jn, a = 847.5(1), b = 923.4(2), c = 1632.0(3) pm, ß = 100.33(1)°, Z = 2, 223 param eters, 1784 reflections, Rg = 0.0357). Y 3+ is coordinated by 5 water molecules and 3 oxygen atom s o f the mellitate anion in a dodecahedral fashion. Y 3+ and [C6(COO)6]6-ions are linked by coordinative bonds, yielding infinite chains o f com position Y 2(H 2O)10[C6(COO)6] extending parallel to [100], Hydrogen bonds connect adjacent chains. 
  Reference    Z. Naturforsch. 47b, 1561—15 (1992); eingegangen am 5. M ärz 1992 
  Published    1992 
  Keywords    Y ttrium Mellitate, X-Ray, Chain Structure, Hydrogen Bonding, Differential Thermal Analysis 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1561.pdf 
 Identifier    ZNB-1992-47b-1561 
 Volume    47