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81Author    K. Wieghardt, S. Brodka, K. Peters, E. M. Peters, A. SimonRequires cookie*
 Title    Säure-Base-Eigenschaften des zyklischen Triamins N,N',N"-Trimethyl-l,4,7-triazacyclononan: Die Kristallstruktur seiner monoprotonierten Form [C9H22N3KCIO4) Acid-Base Properties of the Cyclic Triamine N,N\N"-Trimethyl-l,4,7-triazacyclononane and Crystal Structure of its Monoprotonated Form [C 9 H 2 2N 3 ](C10 4 )  
 Abstract    The crystal structure of the monohydroperchlorate of N,N',N"-trimethyl-l,4,7-triazacyclo-nonane, [C 9 H 2 2N3](C10 4), has been determined by single crystal X-ray diffraction. The acidic proton of the cation is bonded to one amine nitrogen and it forms hydrogen bonds to the other two N-atoms in agreement with a proposed model, which has been invoked to interpret successive protonation constants of cyclic triamines. The salt [Me 6 [9]aneN 3 ](BF 4)3 has also been prepared. 
  Reference    Z. Naturforsch. 42b, 279—281 (1987); eingegangen am 8. Oktober/24. November 1986 
  Published    1987 
  Keywords    Macrocyclic Triamine, X-Ray, Acid-Base Properties 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0279.pdf 
 Identifier    ZNB-1987-42b-0279 
 Volume    42 
82Author    Norbert Kuhn, Hans Schumann, Gotthelf WolmershäuserRequires cookie*
 Title    {tert-C 4 H 9 ) 3 PTe — ein typisches Tellurophosphoran? [1] (ferr-C 4 H 9 ) 3 PTe -a Typical Tellurophosphorane? [1]  
 Abstract    The P-Te bond length in (r<?rr-C 4 H 9) 3 PTe of 2.368 Ä corresponds to a bond order near 1.5. The distance may be influenced by the tert-C 4 H 9 groups, but the 125 Te NMR shift is well within the common R,PTe range, while 7(125 Te-31 P) is about 140 Hz smaller than in other tellurophos-phoranes. 
  Reference    Z. Naturforsch. 42b, 674—678 (1987); eingegangen am 15. Januar 1987 
  Published    1987 
  Keywords    Tellurophosphoranes, X-Ray, 125 Te NMR Spectra 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0674.pdf 
 Identifier    ZNB-1987-42b-0674 
 Volume    42 
83Author    Z. NaturforschRequires cookie*
 Title    Darstellung und Kristallstrukturen von C a^ ^ N und Sr4In2N  
 Abstract    The new compounds Ca4In2N and Sr4In2N crystallize in the tetragonal system (space group 14,/am d, No. 141). In and Ca together form a rocksalt structure. All octahedral holes, which are built by Ca only, are occupied by nitrogen. The In atom s form In —In zig-zag-chains; the In —In bond lengths are 316.4 pm (Ca com pound) and 332.0 
  Reference    Z. Naturforsch. 42b, 825—827 (1987); eingegangen am 1. April 1987 
  Published    1987 
  Keywords    Crystal Structure, X-Ray, Alkaline E arth Indium Nitrides 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0825.pdf 
 Identifier    ZNB-1987-42b-0825 
 Volume    42 
84Author    Regine Herbst, KatteshV. Katti, HerbertW. Roesky, GeorgeM. SheldrickRequires cookie*
 Title    Synthese und Struktur des ersten Cyclophosphazens mit einer M etall—Metall-Bindung im Ringgerüst Synthesis and Structure o f the First Cyclophosphazene Containing a Metal —Metal Bond within the Ring Skeleton  
 Abstract    The reaction of [H2NPPh2NPPh2N H 2]Cl (1) with WClft (2) proceeds with formation of NPPh2NPPh2NWCl3 (3) and HCl,N6P4Ph8W 2 (4). 3 is the main product of this reaction. 4 was characterized by an X-ray structure determination. 4 contains a seven and a six-membered phos-phorus-nitrogen ring with a W —W bond of 269.2 pm. 
  Reference    Z. Naturforsch. 42b, 1387 (1987); eingegangen am 22. Juni/6. August 1987 
  Published    1987 
  Keywords    Tungsten, 6;r-Systems, X-Ray, Phosphorus-Nitrogen Compound 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1387.pdf 
 Identifier    ZNB-1987-42b-1387 
 Volume    42 
85Author    Peter Schreiber, Karl Wieghardt, Ulrich Flörke, Hans-Jürgen HauptRequires cookie*
 Title    Synthese von Wolframkomplexen  
 Abstract    des Typs [ L W (C O) 3X ] + (X = H , F, Br; L = 1,4,7-Triazacyclononan). Die Kristallstrukturen von [L W (C O) 3B r]B F 4 und [L W (C O) 3H ] 2[W O C l5] • h 2o Synthesis o f Tungsten Complexes o f the Type [L W (C O)3X ] + (X = H, F, Br; L = 1.4,7-triazacyclononane). The Crystal Structures o f [L W (C O)3Br]BF4 and [L W (C O)3H ]2[W O C l5] • H 20 The reaction of LW (C O), (L = 1,4,7-triazacyclononane) with Br2 in CHCl, yields orange [L W (C O)3Br](Br3) which was converted to its BF4~ salt. [L W (C O)3Br]BF4 crystallizes in the triclinic space group P 1 (a = 8.273(3), b = 8.628(2), c = 13.034(3) Ä , a = 80.10(2), ß = 72.69(2). y = 61.14(2)°, Z = 2); it consists of cations [L W (C O)3Br] + , with seven-coordinate W atoms, and BF4 -anions. The corresponding salt [L W (C O)3F](PFft) was obtained from L W (C O)3 with 20% aqueous HF in the presence of air and addition of NaPF6. The analogous reaction with 37% aqueous HC1 affords green crystals of [L W (C O)3H ]2[W OCl5] • H 20 which crystallize in the mono­ clinic space group P2,/c (a = 12.234(4), b = 18.853(7), c = 14.609(5) Ä . ß = 105.65(3)°, Z — 4). The W atoms in the [L W (C O)3H ]+ cations are seven-coordinate; the six-coordinate [W OCl5]: anions are not disordered. The W = 0 distance is short (1.72(1) Ä), the mean equatorial W —Cl distance is 2.390 Ä whereas the W —Cl bond distance trans to the W = 0 group is 2.562(5) Ä. 
  Reference    Z. Naturforsch. 42b, 1391 (1987); eingegangen am 2. Juli 1987 
  Published    1987 
  Keywords    Tungsten Complexes, X-Ray, Crystal Structure 
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 Identifier    ZNB-1987-42b-1391 
 Volume    42 
86Author    Thomas Lehmann, Joachim FuchsRequires cookie*
 Title    Struktur und Schwingungsspektrum des Kaliumundecawolframats Kgl^WnOsg* 11 H 2 0 Structure and Vibrational Spectrum of the Potassium Undecatungstate K 6 H 4 Wn03 8 -1 1 H : 0  
 Abstract    The title compound crystallizes in the triclinic space group P 1 with lattice parameters a = 13.129 Ä, b = 14.156 Ä, c = 14.843 Ä and a = 88.34°, ß = 74.43°, y = 70.86°. The polyanion evidently is the predominant species in pseudometatungstate phases the exact composition of which has not previously been determined. 
  Reference    (Z. Naturforsch. 43b, 89—93 [1988]; eingegangen am 6. August 1987) 
  Published    1988 
  Keywords    X-Ray, Isopolytungstate, Preparation, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0089.pdf 
 Identifier    ZNB-1988-43b-0089 
 Volume    43 
87Author    Günter KlarRequires cookie*
 Title    Elementorganische Verbindungen mit o-Phenylenresten, XV [1] Hexamethoxy-tetrachalcogena-tetrahydropentacene Organometallic Compounds with o-Phenylene Substituents, Part XV [1] Hexamethoxy-tetrachaleogena-tetrahydropentaeenes Peer Berges  
  Reference    Z. Naturforsch. 43b, 599—604 (1988); eingegangen am 21. Januar 1988 
  Published    1988 
  Keywords    tetrahydropentacene, Synthesis, 'H NMR Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0599.pdf 
 Identifier    ZNB-1988-43b-0599 
 Volume    43 
88Author    T. Sogo, J. Romero, A. Sousa, A. De Blas, M. L. Durán, E. E. CastellanoRequires cookie*
 Title    The Electrochemical Synthesis of Neutral Zinc(II) Complexes of Schiff Base Ligands: The Crystal Structure of Bis[N-(4-methylphenyl)salicylaldiminato]zinc(II)  
 Abstract    The electrochemical synthesis and physico-chemical properties of neutral zinc(II) complexes of bidentate Schiff bases derived from salicylaldehydes are presented together with the X-ray struc-ture of bis[N-(4-methylphenyl)salicylaldiminato]zinc(II). The crystal is monoclinic, a = 21.877(3), b = 8.801(2), c = 12.027(5) Ä, ß = 96.55(3)°, space group C2/c. The complex is a monomer, and the zinc atom is tetrahedrally coordinated. 
  Reference    Z. Naturforsch. 43b, 611—615 (1988); received November 5 1987/January 28. 1988 
  Published    1988 
  Keywords    X-Ray, Zinc, Schiff Bases, Electrochemical Synthesis 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0611.pdf 
 Identifier    ZNB-1988-43b-0611 
 Volume    43 
89Author    Heide Lindenberger, Reiner Birk, Olli Orama, Gottfried Huttner, Heinz BerkeRequires cookie*
 Title    Ketenylidentriphenylphosphoran-Komplexe Ketenylidenetriphenylphosphorane Complexes  
 Abstract    Ketenylidenetriphenylphosphorane complexes of the type L"MC(CO)PPh3 L"M = CpMn(CO)2 (2a), CpRe(CO)2 (2b) and Fe(CO)4 (3) are obtained by CO substitution reactions. The synthesis of 3 at 80 °C is accompanied by the formation of a Fe2(CO)6 compound with a bridging a-metallated formyl(triphenylphosphane)carbido ligand. From ethylation of 3 arises an Fe2(CO)6 ferrol-type complex 5. 
  Reference    Z. Naturforsch. 43b, 749—757 (1988); eingegangen am 5. Oktober/22. Dezember 1987 
  Published    1988 
  Keywords    Heterocumulene Ylide Complexes, a-Metallation, Ferroles, X-Ray 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0749.pdf 
 Identifier    ZNB-1988-43b-0749 
 Volume    43 
90Author    Uwe Scholz, Mathias Noltemeyer, HerbertW. RoeskyRequires cookie*
 Title    Synthese und Struktur eines ungewöhnlichen Molybdän-Heterocyclus durch Substitution eines Phenylringes in ortho-Stellung Synthesis and Structure of an Unusual Molybdenum Heterocycle by Substitution of a Phenyl Ring in ortho-Position  
 Abstract    The new ligand (Me 3 Si) 2 NC(Ph)NP(Ph) 2 N(SiMe 3) (1) reacts with MOOC1 4 to yield the green metallacycle 4. 4 was characterized by X-ray diffraction. Crystals of 4 are monoclinic, space group P2,/n with a = 1061.2(10). b = 1590.5(10), c = 1737.4(20) pm, ß = 104.84(7)° and Z = 4. Mo is coordinated octahedrally by two nitrogens of the bifunctional ligand. by one oxygen and three chlorine atoms. The ligand undergoes cyclization, a bond being formed between N and one phenylic o-position. 
  Reference    Z. Naturforsch. 43b, 937—940 (1988); eingegangen am 23. März 1988 
  Published    1988 
  Keywords    X-Ray, Molybdenum, Heterocycle Phosphorus-Nitrogen Compound 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0937.pdf 
 Identifier    ZNB-1988-43b-0937 
 Volume    43 
91Author    Gisela Sawitzki, Wolfgang Einholz, Wolfgang HauboldRequires cookie*
 Title    Kristall-und Molekülstruktur von N,N'-Bis(l,3-dimethylbenzo[b]-l,3?2-diazaboroIidin-2-yl)carbodiimid Crystal and Molecular Structure of N,N'-Bis(l,3-dimethylbenzo[b]-l,3,2-diazaborolidin-2-yl)carbodiimide  
 Abstract    Crystals of the title compound (2) are monoclinic with a = 905.5(3), b = 593.6(2). c — 3243.5(8) pm, ß = 95.63(2)°, Z = 4, space group P2 x ln. The molecule 2 neither has a C 2 -symmet-rical allene-type nor a D 2d -symmetrical cumulene-type structure, but it has a non-linear B-N = C=N —B arrangement and is nearly planar. The central N = C=N angle has a value of 171.9(3)°, the B —N = C angles are 145.9(2)° and 163.1(3)°. 
  Reference    Z. Naturforsch. 43b, 1179—1183 (1988); eingegangen am 25. Mai 1988 
  Published    1988 
  Keywords    Boron-Nitrogen Compounds, Borylated Carbodiimides, X-Ray 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-1179.pdf 
 Identifier    ZNB-1988-43b-1179 
 Volume    43 
92Author    Gerhard CordierRequires cookie*
 Title    Darstellung und Kristallstruktur von Ca 5 Ga 2 N 4 Preparation and Crystal Structure of Ca 5 Ga 2 N 4  
 Abstract    The crystal structure of Ca 5 Ga 2 N 4 (orthorhombic, space group Cmca, a = 487.3(2) pm, b = • 1110.5(3) pm, c = 1421.7(4) pm, Z = 4) contains infinite zig-zag chains of Ga atoms, which are in a tetrahedral coordination by two additional nitrogen atoms in terminal positions. 
  Reference    Z. Naturforsch. 43b, 1253—1255 (1988); eingegangen am 3. Juni/18. Juli 1988 
  Published    1988 
  Keywords    Crystal Structure, X-Ray, Alkaline Earth Gallium Nitrides 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-1253.pdf 
 Identifier    ZNB-1988-43b-1253 
 Volume    43 
93Author    Susanne Maier, Wolfgang Hiller, Joachim Strähle, Christina Ergezinger, Kurt DehnickeRequires cookie*
 Title      
 Abstract    The copper(I)amidinato complex Cu 2 [Ph-C(NSiMe 3) 2 ] ; has been prepared by the reaction of CuCl with N.N,N'-tris(trimethylsilyl)benzamidine in boiling acetonitrile. forming white crystals. The compound was characterized by its IR spectrum as well as by an X-ray structure determina-tion. Crystal data: space group PI, Z = 2 (2851 observed independent reflexions, R = 0.047). Lattice dimensions at 20 °C: a = 1135.0(3); b = 1219.6(4); c = 1372.4(4) pm; a = 106.74(3)°; ß = 107.92(4)°; y = 91.40(4)°. The compound forms dimeric molecules with a short Cu--Cu contact of 242 pm and two chelating amidinato ligands with Cu-N bond lengths of (averaged) 189.0 pm and bond angles N —C—N of 124.1°. 
  Reference    Z. Naturforsch. 43b, 1628—1632 (1988); eingegangen am 11. August/30. September 1988 
  Published    1988 
  Keywords    Synthesis, X-Ray, Copper(I) Amidinato Complex 
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 Identifier    ZNB-1988-43b-1628 
 Volume    43 
94Author    Johannes Breker, PeterG. Jones, Reinhard Schmutzler, FrauM. Prof, Argot BeckeRequires cookie*
 Title    4-Substituierte  
 Abstract    ,3,5,7-T etramethyl-1,3,5,7-tetraaza-4 A5-phosphaspiro-|3.3]heptan-2,6-dione; Röntgenstrukturanalyse von 1,3,4,6,7,9,10-Heptamethyl-5-oxa-l ,3>7,9,10-pentaaza-4 A5,6 A5-diphosphadispiro[3.1.3.1 ]decan-2,8-dion 4-Substituted l,3,5,7-Tetramethyl-l,3,5,7-tetraaza-4>3.5-phosphaspiro[3.3]heptane-2,6-diones; Crystal Structure of l,3,4,6,7,9,10-Heptamethyl-5-oxa-l,3,7,9,10-pentaaza-4A5, 6 / 5-diphospha-dispiro[3.1.3. l]decane-2,8-dione The reaction o f the tetrachlorophosphoranes RPC14 (R = Me, Ph) with N,N'-dimethylurea (dmh) (1), or o f the diazaphosphetidinone 0 = C (N M e)2PR (R = CC13) (3) and chlorine with N,N'-bis(trim ethylsilyl)-N,N'-dim ethylurea (2) furnished the spiro compounds 
  Reference    Z. Naturforsch. 45b, 1407—1415 (1990); eingegangen am 19. Oktober 1989 
  Published    1990 
  Keywords    Oxoazadiphosphetidine, N M R Spectroscopy, X-Ray 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1407.pdf 
 Identifier    ZNB-1990-45b-1407 
 Volume    45 
95Author    UlrichW. Annagat, Gabriele Bogedain, A. Drian Schervan, HeinrichC M Arsm Ann, DavidJ. Brauer, Hans Bürger, FrankD. Örrenbach, Gottfried Pawelke, Carl Krüger, Karl-Heinz ClausRequires cookie*
 Title    Das Isosterenpaar S iO /P N , I Zur Isosterie von Perchlorcyclosiloxanen und Perchlorcyclophosphazenen. Schwingungsspektren und Röntgenstrukturanalyse von (Cl2SiO )3 und (Cl2SiO )4 The SiO/PN Isoelectronic Pair, I Perchlorocyclosiloxanes and Perchlorocyclophosphazenes. Vibrational Spectra and X-Ray Structure Analysis o f (Cl2SiO) 3 and (Cl2SiO) 4  
 Abstract    Hexachlorocyclotrisiloxane (2) and octachlorocyclotetrasiloxane (4) were prepared by reac­ tion o f SiCl4 with 0 2 at 955 C. Their mass spectra are compared with those o f the isoelectronic cyclophosphazenes. The vibrational spectra o f 2 and 4 are very similar and closely related to that o f (PNC12)3, but clearly different from that o f the puckered (PNCU) 4 molecule. The X-ray examination o f 2 and 4 reveals planarity o f the (SiO)", n = 3 and 4 ring systems, with d (S i-O) on average 1.619(4) and 1.584(3) Ä, respectively. 
  Reference    Z. Naturforsch. 46b, 931—9 (1991); eingegangen am 2. Novem ber 1990 
  Published    1991 
  Keywords    Perchlorocyclosiloxanes, Perchlorocyclophosphazenes, Isoelectronic Relations, X-Ray, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-0931.pdf 
 Identifier    ZNB-1991-46b-0931 
 Volume    46 
96Author    H. Erbert, W. Roesky, Birgit Meller-Rehbein, M. Athias NoltemeyerRequires cookie*
 Title    Reactions of M e2NC(S)SN(SiMe3)2 with M etal Halides -Crystal Structure of M e2NCS2ZrCl3 * 3 Pyridine  
 Abstract    M e-,NC(S)SN(SiM e3)2 (1) reacts with TeCl4 and N bC lj to yield M e2N C (S)SN TeC l2 (4) and 
  Reference    Z. Naturforsch. 46b, 1117—1121 (1991); eingegangen am 14. Februar 1991 
  Published    1991 
  Keywords    Tellurium, Niobium, Zirconium, Hafnium, Complexes, X-Ray 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1117_n.pdf 
 Identifier    ZNB-1991-46b-1117_n 
 Volume    46 
97Author    Yüniu Bai, M. Athias Noltemeyer, H. Erbert, W. RoeskyRequires cookie*
 Title    Synthese und Strukturen von Monoalkylamiden und -imiden des Titans Synthesis and Structures o f M onoalkylam ides and -imides of Titanium  
 Abstract    A new method for the preparation o f m onoalkylam ides o f com position Cp'TiCl2N H R is reported. M e3SnN H R (R = /Bu l a , CH/Pr-, lb) reacts with Cp'TiCl3 with elimination o f M e3SnCl to yield Cp'TiCLNHR (2) (2a: Cp' = C 5H 5, R = /Bu, 2b: Cp' = M e3SiC5H 4, R = t Bu, 2c: Cp' = (M e3Si)?C 5H 3, R = /Bu, 2d: Cp' = M e4C5H, R = /Bu, 2e: Cp' = M e5C5, R = t Bu, 2f: Cp' = C5H 5, R = CH/Pr2, 2g: Cp' = M e3SiC5H 4, R = CH/Pr2, 2h: Cp' = (M e3Si)2C5H3, R = CH/Pr2, 2i: Cp' = M e4C5H , R = CH/Pr2, 2j: Cp' = M e5C5, R = CH/Pr2). Compounds 2 a -2 j are stable and eliminate HC1 only in the presence o f a strong base to form (C5H 5T iC lN /B u)2 (3a) or (M e3SiC5H4T iC lN /B u)2 (3b) from 2 a and 2b, respectively. In 3a the chlorine atom s are substituted by N H /B u groups in boiling T H F by means o f L iN H /Bu to give (C5H 5T iN H /B uN /B u)2 (4). The reactions o f 2 e and 2b with L iN (SiM e3)2-Et20 in the presence o f pyridine yield M e5C5T iC lN /B u • Py (5 a) (Py = pyridine) and M e3SiC5H4T iC lN /B u P y (5 b), respectively. Com pounds 2 e and 5 a have been characterized by X-ray crystal structural analysis. 
  Reference    Z. Naturforsch. 46b, 1357 (1991); eingegangen am 22. März 1991 
  Published    1991 
  Keywords    X -Ray, Synthesis, Titanium, Amides, Imides 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1357.pdf 
 Identifier    ZNB-1991-46b-1357 
 Volume    46 
98Author    Dieter Sellmann+, Bernd Seubert, W. Olfgang Kern, Falk Knoch, M. Atthias, MollRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden, LXIX* and X-Ray Structure Analyses  
 Abstract    Chrom-und Wolfram-Nitrosyl-Komplexe mit schwefeldominierten Koordinationssphären: IC r(N O)XS4')]v (x = 1, y = 2; x = 2, y = 1), (NR4)2[W (NO)2(S 2)2] (R = M e, /i-Bu), [W(L)(NO)('S4)] (L = NO , N P M e3, NPEt3) und [//-0 { W (N 0)(S4)} 2] ('S2'2" = l,2-Benzoldithiolat(2-); 'S4'2-= l,2-Bis(2-mercaptophenylthio)ethan(2-)); Synthesen, Eigenschaften und Röntgenstrukturanalysen Transition M etal Complexes with Sulfur Ligands, LXIX* Chromium and Tungsten Nitrosyl Complexes with Sulfur Dom inated C oordination Spheres: [C r(N O)/S 4')]v(* = \ , y = 2 \x = 2 , y = 1), (N R 4)2[W(NO)2('S2')2] (R = Me, «-Bu), [W(L)(NO)('S4')] (L = NO, N PM e3, N P E t3) and [//-0{W (N 0)('s7)}2] ('S2'2-= 1.2-B enzenedithiolate(2-);'S4'2-= 1.2-Bis(2-mercaptophenylthio)ethane(2-)); Syntheses, Properties In order to study the properties o f sulfur coordinated metal centres, the chromium and tung­ sten complexes [Cr(NO)(//-'S4% (4), (N R 4),[W (N O)2('S 0 2] (1) (R = Me (la), «-Bu (lb)), [W (NO)2('S4')] (2), [^ -0 {W (N 0)('S 4')}2] (3) and [W (N PR 3)(N O)('S4')] (5) (R = Me (5a), Et (5b)) were synthesized ('S2'2 = 1,2-benzenedithiolate(2—) ; 'S4'2 = 1,2-bis(2-mercaptophenyl-th io)ethane(2-)). la and lb result from the reductive nitrosylation o f Li2[W('S2')3] which was prepared by reduction o f [W('S2')3] with rc-BuLi. la was also obtained from [W (NO)2(Cl)2]", 'S2'2-and N M e4+. Alkylation o f la or lb by 1.2-dibromoethane yields 2, whose X-ray structure 
  Reference    Z. Naturforsch. 46b, 1435—5 (1991); eingegangen am 8. A pril/ 8. Juli 1991 
  Published    1991 
  Keywords    Chromium, Tungsten, Nitrosyl Complexes, Sulfur Ligands, X-Ray 
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 Identifier    ZNB-1991-46b-1435 
 Volume    46 
99Author    Dieter Sellmann, Peter Lechner, Falk Knoch, M. Atthias, MollRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden  
 Abstract    , LXXIII. Diastereospezifische Dichlormethylierung schwefelreicher IRu'^SRR XPPh^yS/j-Komplexe (SRR' = einzähniger Thioether-oder Thiol-Ligand; 'S4'2-= l,2-Bis(2-mercaptophenylthio)ethan(2-))* Transition Metal Complexes with Sulfur Ligands, LXXIII. Diastereospecific Dichlorom ethylation of Sulfur Rich [Run(SR R')(PPh3)'S4'] Complexes (SR R' = M onodentate Thioether or Thiol Ligand; 'S4': ~ = 1,2-Bis(2-m ercaptophenylthio)ethane(2-)) Under exclusion o f air the thioether and thiol complexes [Ru(SRR')(PPh3)'S4'] ('S4'2-= l,2-bis(2-m ercaptophenylthio)ethane (2 -)) easily react with C H C l, yielding [Ru(Cl)(PPh,)('S4'-C H C L)] in which one thiolato atom o f the 'S4' ligand is diastereospecifical-ly dichloromethylated. In the presence o f air, however, [Rum(Cl)(PPh3)'S4'] is formed. The molecular structures o f [Ru(Cl)(PPh3)('S4'-C H C l:)]-2C H C l3 and [Rum(Cl)(PPh3)'buS4'] have been determined by X-ray crystallography. 'buS4'2-(= 1,2-bis(3,5-di(/-butyl)-2-m ercaptophenylthio)ethane(2-)) is the r-butyl derivative o f the 'S4' ligand. Reasons for ob ­ served diastereospecifity o f alkylation are discussed. 
  Reference    Z. Naturforsch. 46b, 1585 (1991); eingegangen am 3. Mai 1991 
  Published    1991 
  Keywords    Transition Metal Sulfur Complexes, Diastereospecifity, Alkylation, X-Ray 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1585.pdf 
 Identifier    ZNB-1991-46b-1585 
 Volume    46 
100Author    Dieter Sellmann, Stefan Fünfgelder, Falk KnochRequires cookie*
 Title    Übergangsmetallkomplexe mit Schwefelliganden, LXXV  
 Abstract    Synthese und Struktur von INi('NHS4)|2 und |N i(Py)2('S2')| * Py; Radikalische Templatalkylierungen von |Ni('S2')2l2~** Transition Metal Complexes with Sulfur Ligands, LXXV* Syntheses and Structure of [Ni('NHS4')]2 and [Ni(Py)2('S2')] • Py; Radical Alkylations of [Ni('S2')2]: ** [N i('N HS4')]2 ('N nS4'2~ = 2,2'-bis(2-m ercaptophenylthio)diethylam ine(2-)) was synthesized from Ni(ac)-, and N a2-' N HS4' and characterized by X-ray structure analysis. In the solid state [N i('N HS4')]2 contains two pseudooctahedral [N i('N HS4')] fragments bridged via thiolate d o ­ nors, in D M F solution at 110 C it dissociates into mononuclear entities. The product o f the template reaction between [Ni('S2')2]2~ ('S2'2-= 1,2-benzenedithiolate) and (BrC\H4)2NH was shown to contain an as yet unidentified by-product in addition to [Ni('NnS4')]2. Pure [N i('N HS4')]2 does not react with pyridine, but the template product forms [N i(Py)2('S2')] which has a square planar coordination geometry with the pyridine rings perpendicular to the N iS2N 2 plane. Investigation o f the template formation o f [N i('N HS4')]2 provided evidence that the reaction o f [Ni('S,')J--with (BrC2H4)^NH involves radicals, suggesting a radical chain reaction m echa­ nism. 
  Reference    Z. Naturforsch. 46b, 1593—1600 (1991); eingegangen am 13. Mai 1991 
  Published    1991 
  Keywords    Nickel Sulfur Complexes, X -Ray, Template Reaction 
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 Identifier    ZNB-1991-46b-1593 
 Volume    46 
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