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'Crystal Structures' in keywords Facet   section ZfN Section B:Volume 049  [X]
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1994 (52)
41Author    Blaschette, PeterG. Jones, Karin Linoh, Ilona Lange, M. Artina Näveke, Dagmar Henschel, Axel Chrapkowski, Dietm Ar, SchomburgRequires cookie*
 Title    Arm  
  Reference    Z. Naturforsch. 49b, 999—1011 (1994); eingegangen am 1. Februar 1994 
  Published    1994 
  Keywords    Polysulfonylamines, 18-Crown-6-Dimesylamine (3/2), Synthesis, Crystal Structure, Coronand Conformation 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0999.pdf 
 Identifier    ZNB-1994-49b-0999 
 Volume    49 
42Author    W. Lübbe, A. Franken, W. PreetzRequires cookie*
 Title    Darstellung, n B-, 13C-, 'H-NMR-und Schwingungsspektren  
 Abstract    von 1.2-Trimethylenpentahydro-closo-Hexaborat(l -) , c i s -[B6H5(CH2)3]" und 1.2-TetramethyIenpentahydro-closo-Hexaborat(l-), cjs-[B6H5(CH2)4]_ sowie Kristallstrukturen von [P(C6H5)4][B6H5(CH2)3] und [P(C6H5)4][B6H5(CH2)4] Preparation, n B, 13C, 'H NMR and Vibrational Spectra of 1.2-Trim ethylenepentahydro-closo-hexaborate(l-), ds-[B 6H 5(C H 2)3]_, and 1.2-Tetram ethylenepentahydro-closo-hexaborate(l-), ds-[B 6H 5(CH 2)4]~, and the Crystal Structures of [P(C6H 5)4][B6H 5(CH 2)3] and [P(C6H 5)4][B6H 5(C H 2)4] 1.2-Trimethylenepentahydro-closo-hexaborate(l -) , 1.2-Tetram ethylenepentahydro-closo-hexaborate( 
  Reference    Z. Naturforsch. 49b, 1115—1122 (1994); eingegangen am 17. Januar 1994 
  Published    1994 
  Keywords    ), Crystal Structures, 'H NM R Spectra, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1115.pdf 
 Identifier    ZNB-1994-49b-1115 
 Volume    49 
43Author    Hendrik Möller, Ellen Suchanek, HeinzDieter Lutz, Werner PaulusRequires cookie*
 Title    Neutronenbeugungs-Untersuchung von M g(I03)2*4H 20 -Einkristallen Neutron Diffraction Studies on M g (I0 3 )2 -4H 20 Single Crystals  
 Abstract    The crystal structure of M g (I 0 3)2-4 H 20 has been determined by neutron single crystal diffraction (P2j/c, Z = 2, R = 2,2% on the basis of 1107 observed reflections). M g (I 0 3)2-4 H 20 forms a layered structure built up of octahedral M g(H 20) 4(I 0 3)2 units linked by hydrogen bonds. The two crystallographically different water m olecules are in­ volved in asymmetric, nearly linear hydrogen bonds to adjacent iodate ions (vOD of matrix isolated HDO: 2480, 2475, 2425 und 2412 cm -1, IR spectroscopic data, 90 K). The strength of the hydrogen bonds as well as that of other iodate hydrates is discussed in terms o f both the synergetic effect and Brown's bond valences. 
  Reference    Z. Naturforsch. 49b, 1334—1338 (1994); eingegangen am 2. Mai 1994 
  Published    1994 
  Keywords    Magnesium Iodate Tetrahydrate, Crystal Structure, Neutron Diffraction Studies, Hydrogen Bonds 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1334.pdf 
 Identifier    ZNB-1994-49b-1334 
 Volume    49 
44Author    Stefan Horstmann, Wolfgang SchnickRequires cookie*
 Title    Synthese, Kristallstruktur und Eigenschaften von Tetraaminophosphoniumiodid [P(NH2)4]I Synthesis, Crystal Structure, and Properties of Tetraaminophosphonium Iodide [P(NH2)4]I  
 Abstract    The title compound has been prepared starting from phosphorothionic triamide SP(N H 2)3 by methylation of the sulfur atom and subsequent ammonolysis reaction in dry acetonitrile and dichloromethane, respectively, both at room temperature. Suitable single crystals are obtained from an acetonitrile solution in a temperature gradient between 70 °C and room temperature. The crystal structure o f [P(N H 2)4]I has been determined by single crystal X-ray methods (P 4!nbm\ a = 842.6(2), c = 486.7(2) pm, Z = 2). In the solid [P(NH2)4]+-and I~-ions are found with significant N -H -I -h y d r o g e n bonding interactions between anions and cations (H —I: 276.4 pm). The P -N -b o n d length in the cation (160.7(2) pm) represents the shortest P -N H 2 bond distance reported to date indicating a significant electrostatic strengthening. The condensation behaviour of [P(N H 2)4]I in solution and in the solid has been investigated. 
  Reference    Z. Naturforsch. 49b, 1381—1386 (1994); eingegangen am 5. Mai 1994 
  Published    1994 
  Keywords    Tetraaminophosphonium Salt, Synthesis, Crystal Structure, Hydrogen Bonding, Condensation Reactions 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1381.pdf 
 Identifier    ZNB-1994-49b-1381 
 Volume    49 
45Author    Roland Boese3, RolandK. Österb, M. Ohamed YalpanibRequires cookie*
 Title    Produkte der Carbodiimid-Hydroborierung mit (9H -9-BBN)2 [1] Hydroboration Products of Carbodiimides with (9H-9-BBN) 2 [1]  
 Abstract    The hydroboration of H n C6N=C=NC6H n (A) with (9H -9-B B N)2 (C2) gives H n C6N= 
  Reference    Z. Naturforsch. 49b, 1453—1458 (1994); eingegangen am 13. Mai 1994 
  Published    1994 
  Keywords    Carbodiimides, Addition of 9-BBN, Formamidine, Crystal Structure, Formaminal 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1453.pdf 
 Identifier    ZNB-1994-49b-1453 
 Volume    49 
46Author    Unsymmetrische Diorganomagnesiumverbindungen, Heiko Viebrock, Dirk Abein, Erwin Weiss+Requires cookie*
 Title    Über Metallalkyl-und -arylverbindungen, 51. Mittig.* On Metal Alkyl and Aryl Compounds, Part 51 Unsymmetrical Diorganomagnesium Compounds. MgRR'(L) and Solvens Separated Ion Pairs with R = Me  
 Abstract    Amine adducts of diorganomagnesium compounds MgR2(L) are soluble in hydrocarbons and therefore valuable synthons for reactions in non-polar solvents. In this way unsymmetri-cally substituted derivatives MgRR'(L) become available by substituting one organic group by a different carbanion via acid-base reactions, according to eq. (1): R2Mg(L) + HR' -> RR'Mg(L) + HR (1) with HR' being stronger CH-acids than HR. Using the amin adducts R2Mg(L) (R = Me, Et) with chelating amines (L = tetramethyl­ ethylenediamine, TMED A, pentamethylethylenetriamine, PMDTA) and the strong CH-acids cyclopentadiene, indene, fluorene and alkynes the following compounds have been synthe­ sized and their structures derived by X-ray analyses: MgMe(?/3-cyclopentadienyl)(tmeda) (1), MgMe(?73-indenyl)(tmeda) (2), MgMe(^1-fluorenyl)(tmeda) (3), [Mg2Me2(pmdta)2]2+[fluo-renyl]2-benzene (4) and [Mg2Et(phenylethynyl)3(tmeda)]2-benzene (5). It is remarkable, that cyclopentadienyl, indenyl, and fluorenyl ligands have a lower hapticity than rj5 to the metal, due to steric repulsion by the other ligands. In 4 the bulky tridentate base PMDTA prevents any direct interaction between the fluorenide anion and magnesium, giving solvens separated ion pairs with the unusual and hitherto rare example of an organomagnesium cation [Mg2Me2(pmdt)2]2+. The 1:3 compound 5 has a more complicated structure, related to that of alkali metal alkynyl magnesates. 
  Reference    (Z. Naturforsch. 49b, 89—99 [1994]; eingegangen am 17. August 1993) 
  Published    1994 
  Keywords    Unsymmetrical Diorganomagnesium Compounds, Synthesis, Crystal Structure, Base Adducts, Chelating Di-and Triamines 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0089.pdf 
 Identifier    ZNB-1994-49b-0089 
 Volume    49 
47Author    Mitra Ghassemzadeh, Klaus Harms, Kurt Dehnicke, Dieter FenskeRequires cookie*
 Title    //2-Halogenokomplexe von N-Bromsuccinimid und N-Bromphthalimid. Die Kristallstrukturen von PPh4[X(N-Bromsuccinimid)2] und von PPh4[X(N-Bromphthalimid)2] mit X = CI und Br /i2-Halogeno Complexes of N-Bromosuccinimide and N-Bromophthalimide. The Crystal Structures of PPh4 [X(N-Bromosuccinimide)2] and PPh4 [X(N-Brom ophthalim ide)2] with X = Cl and Br  
 Abstract    The ,«2-halogeno complexes PPh4[X(N-bromosuccinimide)2] and PPh4[X(N-bromophthali-mide)2] with X = Cl and Br have been prepared by reactions of N-bromosuccinimide and N-bromophthalimide, respectively, with the corresponding tetraphenylphosphonium halides PPh4X in acetonitrile solutions. The compounds form pale yellow crystal needles, which were characterized by IR spectroscopy and by crystal structure determinations. PPh4[Cl(N-Bromosuccinimide)2] (1): Space group Z = 4, structure solution with 2516 observed unique reflections, R = 0.040. Lattice dimensions at -2 5 °C: a = 1775.9(1), b = 764.3(1), c = 2341.7(2) pm, ß = 101.84(1)°. 
  Reference    Z. Naturforsch. 49b, 593—601 (1994); eingegangen am 22. Dezember 1993 
  Published    1994 
  Keywords    «2-Halogeno Complexes, N-Bromosuccinimide, N-Bromophthalimide, IR Spectra, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0593.pdf 
 Identifier    ZNB-1994-49b-0593 
 Volume    49 
48Author    Armin Weiss, Stefan DickRequires cookie*
 Title    Der zweikernige Fe(III)-Komplex von N,N,N',N'-Tetrakis(2-pyridylmethyl)-2-hydroxy-l,3-diaminopropan - Molekül-und Kristallstruktur und seine Wechselwirkung mit Montmorillonit The Binuclear Fe(III) Complex of N,N,N',N'-Tetrakis(2-pyridylmethyl)-2-hydroxy-l,3-diaminopropane - Molecular and Crystal Structure and its Interaction with Montmorillonite  
 Abstract    of [Fe2(H P T P)(0 H)(N 0 3)2](C104)2 (HPTP = N,N,N',N'-tetrakis(2-pyridyl-methyl)-2-hydroxy-l,3-diaminopropane) were grown by slow diffusion of diethylether into a solution of the complex salt in acetonitrile. Crystal data: space group R3, a = 4280,1(15) pm, c -1147,6(7) pm, Z = 18. The complex exhibits a binuclear Fe(III) core with (w-oxo)(//-alkoxo) ligands as bridging units. The nitrate anions coordinate each with a short and a long F e -O bond. The coordination spheres of the iron atoms can be looked at as distorted edge-shearing pentagonal bipyramides. The complex cation was introduced into the interlayer region of montmorillonite by cation exchange in acetonitrile. The results of X-ray, IR-and UV/VIS experiments suggest that the cation exchange is reversible. In the interlayer region the dinuclear cations are arranged in a rather loosely packed way, thus creating channels similar to those in pillared smectites or zeolites, respectively. 
  Reference    Z. Naturforsch. 49b, 1051—1058 (1994); eingegangen am 17. Januar 1994 
  Published    1994 
  Keywords    Binuclear Iron(III) Complex, Hem erythrin Model, Crystal Structure, Montmorillonite, Cation Exchange Reaction Yellow crystals 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1051.pdf 
 Identifier    ZNB-1994-49b-1051 
 Volume    49 
49Author    G. Ar Zeller, Ette Schier, B. Ert, Schm IdbaurRequires cookie*
 Title    The Crystal Structure of [Bis(tri-'butyl-phosphine)gold(I)] Chloride  
 Abstract    The title compound is available from the reaction of labile gold(I) chloride com plexes and an excess of the ligand ('Bu3P), or from the N aBH 4 reduction of ('Bu3P)AuCl. It forms dark red cubic crystals, [a = 14.297(1) A at -5 6 °C, space group P2j3, Z = 4], with isolated chloride anions and [('Bu3P)2Au]+ cations of C3 symmetry, with linear two-coordinate gold centers. 
  Reference    Z. Naturforsch. 49b, 1243—1246 (1994); received June 8 1994 
  Published    1994 
  Keywords    G old(I) Complexes, Phosphine Complexes, Gold(I) Coordination, Steric Effect, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1243.pdf 
 Identifier    ZNB-1994-49b-1243 
 Volume    49 
50Author    M. Anfred Fild, PeterG. Jones, Karsten Ruhnau, Carsten ThöneRequires cookie*
 Title    Darstellung und Strukturen von 2,2,4,4-Tctrafluor-l,3-diphosphctancn und -1,3-diphosphetan-disulfiden Synthesis and Structures of 2,2,4,4-Tetrafluoro-l,3-diphosphetanes and of -1,3-diphosphetane Disulfides  
 Abstract    A simple route to 1,3-diphosphetanes [RPCF2]2 [R = Ph, Me, Bu'] is described. The phos-phaalkene intermediates RP=CF2, as well as the corresponding disulfides [R (S)PC F2]2 have been characterized. The crystal structures of [PhPCF2]2, and of the sulfides [Ph(S)PCF2]2 and [Bu'(S)PCF2]2 are reported. 
  Reference    Z. Naturforsch. 49b, 1361—1367 (1994); eingegangen am 6. Juni 1994 
  Published    1994 
  Keywords    Phosphaalkenes, 1, 3-Diphosphetanes, 1, 3-Diphosphetane Disulfides, NM R Spectra, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1361.pdf 
 Identifier    ZNB-1994-49b-1361 
 Volume    49 
51Author    Peter Dierkes, Kurt Dehnicke, Dieter FenskeRequires cookie*
 Title    Diinkomplexe  
 Abstract    von Wolfram(VI). D ie Kristallstruktur von [(Et2S)WCl4(Me3S i-C = C -(C H 2)4 -C = C -S iM e 3)WCl4(SEt2)] Diyne Complexes of Tungsten(VI). The Crystal Structure of [(Et2 S)WCl4 (M e3Si -C = C -(C H 2)4-C ^ C -SiMe3) WCl4 (SEt2)] The diyne complexes [(Et2S)W C l4(R -C ^ C -(C H 2)" -C = C -R)W C l4(SEt2)] (R = SiM e3, n = 3, 4, 8; R = C6H 5, n = 4, 8) have been prepared by the reaction o f /rarcs-[WCl4(SEt2)2] with the corresponding diyne in toluene solutions. The com plexes form green or orange, diamagne­ tic, moisture sensitive crystal powders, which were characterized by their IR and 13C NM R spec­ tra. The crystal structure of the com plex with R = SiM e3 and n = 4 has been determined. [(Et2S)WCl4(M e3S i-C = C -(C H 2)4-C = C -S iM e 3)W Cl4(SE t2)]: Space group P2j/c, Z -2, 3620 observed unique reflections with I>2a(I), R = 0.027. Lattice dimensions at -7 0 °C: a -1431.8(11), b -839.6(8), c = 1731.3(11) pm, ß = 112.74(2)°. The structure consists o f m ole­ cules in which both tungsten atom s are surrounded by four chlorine atoms in equatorial positions, both alkyne groups are bonded side on (rj2) to the tungsten atoms, whereas the sulfur atoms of the diethylsulfide molecules are located trans to the alkyne groups. 
  Reference    Z. Naturforsch. 49b, 1391—1396 (1994); eingegangen am 17. Mai 1994 
  Published    1994 
  Keywords    Diyne Complexes of Tungsten(VI), Synthesis, IR Spectra, NM R Spectra, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1391.pdf 
 Identifier    ZNB-1994-49b-1391 
 Volume    49 
52Author    Hansjürgen Mattausch, Thomas Gulden, R. Einhard, K. Kremer, Jörg Horakh, A.Rndt SimonRequires cookie*
 Title    H o4 C7, Y4 C7: Carbides with C34-and C4" Ions  
  Reference    Z. Naturforsch. 49b, 1439—1443 (1994); eingegangen am 17. Mai 1994 
  Published    1994 
  Keywords    Holm ium Carbide, Yttrium Carbide, Crystal structure, Allenylide Ions, Paramagnetic Behaviour 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1439_n.pdf 
 Identifier    ZNB-1994-49b-1439_n 
 Volume    49 
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