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1988[X]
1Author    ManfredL. Ziegler, Klaus Blechschmitt, Harald Bock, Ernst Guggolz, RichardP. KorswagenRequires cookie*
 Title    Über die Reaktivität von [(CH 3 ) 2 N] 6 W 2 (W=W) gegenüber CS 2 /S 8 und CS 2 /Se, Röntgenstrukturanalyse von [(CH 3 ) 2 NCS 2 ] 2 W(S)(S 2 ) Reactivity of [(CH 3 ) 2 N] 6 W 2 (W=W) Towards CS 2 /S 8 and CS 2 /Se 8 . X-Ray Structure Analysis of [(CH 3 ) 2 NCS 2 ] 2 W(S)(S 2 )  
 Abstract    In this paper we report two improved preparation methods for [(CH 3) 2 N] 6 W 2 (W=W) (1), one starting from WC1 4 (yield 51%), and a second one starting from W 2 C1 6 (THF) 4 (ca. 60% yield). We have studied the reactions of 1 with different nucleophiles, among them triphenylalkylidenphos-phoranes (like Ph 3 P=CH 2 and Ph 3 P=CHPh • LiCl; Ph = phenyl), sulfur and CS 2 . 1 reacts with S 8 and CS 2 in hexane to yield the two new compounds (Me 2 NCS 2) 2 WS(S 2) (4) and W(CS 2 H)(Me 2 NCS 2) 2 (5), both containing dithiocarbamato ligands formed by insertion of CS 2 into the W-N bond. The two mononuclear compounds were characterized spectroscopically, in the case of 4 an X-ray diffraction structure analysis was performed. The reaction of 1 with Se and CS 2 , leads to the compounds 4, (Me 2 NCS 2) 2 W 2 S 4 (6) and [(Me 2 N) 2 C]CS 2 (7), which were also characterized spectroscopically. No Se-containing compounds could be isolated. 4 crystallizes monoclinically, C 5 2h -P2Jn, with a = 648.6(3), b = 1346.7(6) and c = 1745.9(7) pm, ß = 91.85(3)°, V = 1524xl0 6 pm 3 , Z = 4. The structure of the seven-coordinate tungsten compound is discussed and compared to complexes with similar ligands and geometry. 
  Reference    Z. Naturforsch. 43b, 590—598 (1988); eingegangen am 28. Dezember 1987 
  Published    1988 
  Keywords    Reactivity, Synthesis, X-Ray 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0590.pdf 
 Identifier    ZNB-1988-43b-0590 
 Volume    43 
2Author    HerbertW. Roesky, Ulrich Seseke, Mathias Noltemeyer, GeorgeM. SheldrickRequires cookie*
 Title    Darstellungen und Strukturen viergliedriger Metall-Stickstoff-Ringe Preparations and Structures of Four-Membered Metal-Nitrogen Rings  
 Abstract    Ph 3 P=NSiMe 3 (1) reacts with InCl 3 , SnCl, and FeCl, to yield (Ph,P=N) 2 (InCl 2) 2 • 2 DMF (2a), (Ph 3 P=N) 2 Sn 2 Cl 4 • 2 CH 3 CN (3a) and (Ph 3 P=N) 2 (FeCl 2) 2 (4). The X-ray single crystal structures of 2a, 3a and 4 are reported. The compounds form four-membered rings consisting of alternating metal and nitrogen atoms. 2a and 4 are symmetrical, but 3a has both a Sn(II)Cl and a Sn(IV)Cl 3 group in the four-membered ring. 
  Reference    Z. Naturforsch. 43b, 1130—1136 (1988); eingegangen am 29. März 1988 
  Published    1988 
  Keywords    Indium, Tin, Iron, X-Ray 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-1130.pdf 
 Identifier    ZNB-1988-43b-1130 
 Volume    43 
3Author    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 
4Author    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 
5Author    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 
6Author    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 
7Author    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 
8Author    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 
9Author    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 
10Author    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 
11Author    W. Milius, A. RabenauRequires cookie*
 Title    The Crystal Structure of CuSe 2 Cl  
 Abstract    The crystal structure of CuSe2Cl has been deter-mined by single-crystal X-ray diffraction. CuSe2Cl crystallizes monoclinically in space group P2,/c with the lattice parameters a = 768.3(9) pm, b = 462.5(5) pm and c = 1455.2(3) pm, ß = 135.2(4)°, Z = 4. The structure could be shown to be isotypic with CuTe2Cl. 
  Reference    Z. Naturforsch. 43b, 243—244 (1988); received October 21 1987 
  Published    1988 
  Keywords    Copper Chalcogen Halides, Crystal Structure of CuSe2Cl, X-Ray 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0243_n.pdf 
 Identifier    ZNB-1988-43b-0243_n 
 Volume    43 
12Author    St Böck, H. Nöth, P. RahmRequires cookie*
 Title    Lithium-dimethylamino-hydrido-aluminate: Lösungszustand in Diethylether, Tetrahydrofuran und Dimethyldiglykolether Lithium Dimethylamino Hydrido Aluminates: The Solution State in Diethylether, Tetrahydrofuran and Dimethyldiglycol Ether  
 Abstract    The reaction of LiAlH 4 with dimethylamine has been studied in THF, diglyme and diethyl ether solution covering the molar ratios 1:0.5 to 1:4. In all cases the stoichiometric amount of H : is evolved. With the exception of LiAl[N(CH 3) 2 ] 4 all other members of the series LiAlH 4 _"[N(CH 3) 2 ]" cannot be isolated. They are in equilibrium with one another in solution. These equilibria are independent of the solvent used. The structure of compound LiAl[N(CH 3) 2 ] 4 -2(OC 4 H 8) has been determined by X-ray diffrac-tion. The anion acts as a bidentate ligand to Li which is also bonded to the oxygen atoms of two THF molecules. 
  Reference    (Z. Naturforsch. 43b, 53—60 [1988]; eingegangen am 19. August 1987) 
  Published    1988 
  Keywords    Lithium Dimethylaminohydrido Aluminates, 27 A1 NMR Spectra, Solution State, X-Ray, 7 Li NMR Spectra 
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 Identifier    ZNB-1988-43b-0053 
 Volume    43 
13Author    Frank Edelmann, Claudia Spang, HerbertW. Roesky, PeterG. JonesRequires cookie*
 Title    Synthese und Struktur des ersten dreigliedrigen Arsen—Phosphor—Platin-Ringes Synthesis and Structure of the First Three-Membered Ring Containing Arsenic, Phosphorus and Platinum  
 Abstract    -butylphenylphosphane reacts with CpFe(C,H4AsCl2) in the presence of DBU to yield CpFe[C5H4As=PC6H2(f-Bu)?l. The reaction of this arsaphosphene with (Ph3P)2PtC2H4 yields CpFe[C5H4As—P[C6H2(r-Bu)3]Pt(PPh3)2], a compound with a three-membered ring containing arsenic, phosphorus and platinum. 
  Reference    Z. Naturforsch. 43b, 517—520 (1988); eingegangen am 5. Januar 1988 
  Published    1988 
  Keywords    X-Ray, NMR Spectra, Phosphorus, Arsenic, Platinum 2, 4, 6-Tri 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0517.pdf 
 Identifier    ZNB-1988-43b-0517 
 Volume    43 
14Author    Astrid Görge, Kurt Dehnicke, Dieter FenskeRequires cookie*
 Title    N-Chlornitrenokomplexe des Wolframs: WC1 4 (NC1) und [CH 3 CN-WC1 4 (NC1)] N-Chloro-Nitrene Complexes of Tungsten: WC1 4 (NC1) and [CH 3 CN-WC1 4 (NC1)]  
 Abstract    WC1 4 (NC1) has been prepared as a red-brown crystal powder by the reaction of tungsten hexacarbonyl with excess nitrogen trichloride in boiling CC1 4 . The complex is associated via chloro bridges, forming dimeric units, according to the IR spectrum. Thermal decomposition at 200 °C leads to tungsten nitride trichloride, WNC1,. With acetonitrile, WC1 4 (NC1) reacts with formation of the monomeric complex [CH,CN-WC1 4 (NC1)], which was characterized by its IR spectrum as well as by an X-ray structure determination. Crystal data: space group P2,/m, Z = 2 (1387 independent observed reflexions, R — 0.07). Lattice dimensions at 20 °C: a = 590.4(3), b = 729.0(3), c = 1124.6(4) pm, ß = 100.63(2)°. The complex forms monomeric molecules, in which the tungsten atom has a distorted octahedral environment of four chlorine atoms in equatorial positions, and the acetonitrile molecule in fram-position to the W=N —Cl group. Bond lengths WN = 172 and NCI -161 pm; bond angle WNC1 = 175.5°. 
  Reference    Z. Naturforsch. 43b, 677—681 (1988); eingegangen am 26. Januar 1988 
  Published    1988 
  Keywords    Synthesis, IR Spectra, X-Ray, N-Chloro-Nitrene-Tungsten Tetrachloride, Acetonitrile Adduct 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0677.pdf 
 Identifier    ZNB-1988-43b-0677 
 Volume    43 
15Author    Fritz Preuss, Harald Becker, Jürgen Kaub, WilliamS. SheldrickRequires cookie*
 Title    Darstellung und Struktur der zweikernigen tert-Butyliminovanadium(IV)-Komplexe: [('C 4 H 9 N) 2 V 2 Cp 2 X 2 ] (X = 0'C 4 H 9 , Cl) Synthesis and Molecular Structure of the Binuclear terf-Butyliminovanadium(IV) Complexes: [('C 4 H9N) 2 V 2 Cp 2 X 2 ] (X = O f C 4 H 9 , Cl)  
  Reference    Z. Naturforsch. 43b, 1195—1200 (1988); eingegangen am 18. Februar 1988 
  Published    1988 
  Keywords    ferr-Butylimino-cyclopentadienylvanadium(IV) Complexes, Preparation, X-Ray, NMR Spectra, ESR Spectra 
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 Identifier    ZNB-1988-43b-1195 
 Volume    43 
16Author    PaulG. Maué, Dieter FenskeRequires cookie*
 Title    Zur Reaktion von [Cp 2 TiCl 2 ] und [CpTiC! 3 ] mit E(SiMe 3 ) 2 (E = S, Se) Die Kristallstrukturen von [Cp 3 Ti 2 S 2 Cl], [Cp 4 Ti 2 S 2 Cl 2 ], [Cp 3 Ti 2 Se 2 CI] und [Cp4Ti 4 Se 7 0] Reaction of [Cp 2 TiCl 2 ] and [CpTiCl 3 ] with E(SiMe 3 ) 2 (E = S. Se) The Crystal Structures of [Cp 3 Ti 2 S 2 Cl], [Cp 3 Ti 2 S 2 Cl 2 ], [Cp 3 Ti 2 Se 2 Cl] and [Cp 4 Ti 4 Se 7 0]  
 Abstract    The reaction of [Cp 2 TiCl 2 ] with E(SiMe 3) 2 leads to dinuclear Ti complexes. In [Cp 3 Ti 2 S 2 Cl] (1) and [Cp 3 Ti 2 Se 2 Cl] (3) two // 2 -S(Se) ligands bridge the Cp 2 Ti and CpTiCl units, respectively in contrast to these, [Cp 4 Ti 2 S 2 Cl 2 ] (2) contains a // 2 V-S 2 bridge connecting two Cp : TiCl fragments. A similar reaction of [CpTiCl 3 ] with Se(SiMe 3) 2 leads to the tetranuclear cluster [Cp 4 Ti 4 Se 7 0] (4). 4 consists of a Ti 4 -tetrahedron which encloses an oxygen atom. 
  Reference    Z. Naturforsch. 43b, 1213—1218 (1988); eingegangen am 11. Mai 1988 
  Published    1988 
  Keywords    X-Ray, Crystal Structure Dinuclear Ti-S and Ti-Se Complexes, Tetranuclear Ti Cluster 
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 Identifier    ZNB-1988-43b-1213 
 Volume    43 
17Author    Henry Strasdeit, Siegfried PohlRequires cookie*
 Title    Achtfachkoordination von Cadmium(II) und sekundäre Metall—Ligand-Bindungen in [Cd(N0 3 ) 2 (C 12 H 22 N 6 )] und [Cd(C 12 H 22 N 6 ) 2 ](BF 4 ) 2 Eight-Coordination of Cadmium(II) and Secondary Metal —Ligand Bonds in [Cd(N0 3 ) 2 (C 12 H 22 N 6 )] and [Cd(C 12 H 22 N 6 ) 2 ](BF 4 ) 2  
  Reference    Z. Naturforsch. 43b, 1579—1588 (1988); eingegangen am 19. luli 1988 
  Published    1988 
  Keywords    Cadmium Complexes, Eight-Coordination, Tetradentate Ligand, X-Ray, l3 C NMR Spectra, I13 Cd NMR Spectra 
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 Identifier    ZNB-1988-43b-1579 
 Volume    43 
18Author    Bernhard Glaser, ErwinP. Mayer, Heinrich Nöth, Wilfried Rattay, Ulrich WietelmannRequires cookie*
 Title    Beiträge zur Chemie des Bors, 190 [1] Synthese und Molekülstruktur von 1,2-Dihydroboreten und Azadiboretidinen Contribution to the Chemistry of Boron, 190 [1] Synthesis and Molecular Structure of 1,2-Dihydrodiboretes and Azadiboretidines  
 Abstract    [2+2]-Cycloadditions of 9-Fluorenylidentetramethylpiperidinoboranes have been studied with selected olefines, acetylenes and iminoboranes. No reactions with olefines were observed. While propiolic methylester reacts exclusively at the carbonyl bond producing the oxaboretane 5, alkines such as diethylamino-alkines, cyclo-octine and phenylacetylene provide access to the'1,2-dihy-droboretenes 6, 3 and 2. Tetramethylpiperidinoiminoboranes make 1.2.4-azadiboretidines 7 available. 6a and 7a contain a folded four-membered ring as shown by X-ray structure analysis. There is only a weak 1,3-intraannular interaction due to BN-;r-bonding of the boron atoms with their exocyclic amino group. 
  Reference    Z. Naturforsch. 43b, 449—456 (1988); eingegangen am 10. Dezember 1987 
  Published    1988 
  Keywords    Reactivity of Aminomethyleneboranes, Transannular Interaction, X-Ray, 1, 2-Dihydroboret Derivatives, 1, 24-Azadiboretidine Derivatives 
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 Identifier    ZNB-1988-43b-0449 
 Volume    43 
19Author    Helmut Werner, Francisco Javier, Garcia Alonso, Heiko Otto, Justin WolfRequires cookie*
 Title    Synthese der ersten quadratisch-planaren Vinyliden-Komplexe des  
 Abstract    Vaska-Typs. Kristall-und Molekülstruktur von rra«s-[RhCl(=C=CHMe)(PPr'3) 2 ] [1] Synthesis of the First Square-planar Vinylidene Complexes of the Vaska Type. Crystal and Molecular Structure of rrans-[RhCl(=C=CHMe)(PPr' 3) 2 ] [1] 
  Reference    Z. Naturforsch. 43b, 722—726 (1988); eingegangen am 1. Februar 1988 
  Published    1988 
  Keywords    Vinylidene Rhodium Complexes, Synthesis from Alkyne and Alkynyl(hydrido) Precursors, NMR Spectra, X-Ray, Metalla-allene Type Structure 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0722.pdf 
 Identifier    ZNB-1988-43b-0722 
 Volume    43