Go toArchive
Browse byFacets
Bookbag ( 0 )
'Hydrogen bonding' in keywords Facet   section ZfN Section B  [X]
Facet   Publication Year 1999  [X]
Results  9 Items
Sorted by   
Publication Year
1999[X]
1Author    Di, Stephanie Janeda, Dietrich MootzRequires cookie*
 Title    Di-bis Pentahydrate von fünf Alkylendiaminen. Eine Fallstudie zu ein-und zweidimensionalen Wasserpolymeren in Festkörpern [1]-to Pentahydrates of Five Alkylenediamines. A Case Study of One-and Two-Dimensional Water Polymers in Solids [1]  
 Abstract    The crystal structures of five low-melting hydrates of »-alkane-a,u;-diamines, H2N(CH2)"NH2 • x H20 , for short C" ■ x W, have been determined. As a common feature, the water molecules are mutually linked by hydrogen bonds O-H -O to form low-dimensional polymers. These are a meandering chain in C2 • 2 W (space group I 2la, Z -4 formula units per unit cell), a zig zag chain in C6 • 2 W (P 2,/c, Z = 2), a ribbon of consecutively condensed five-membered rings in C3 • 3 W (P 2,/c, Z = 4) and a layer of condensed and spiro-linked rings of varying size each in C7 • 3 W (P i, Z = 4) and C4 • 5 W (C 21c, Z = 4). Further hydrogen bonding, between the water polymers and the bifunctional amine molecules, leads to overall connectivities which are three-dimensional in each structure. 
  Reference    (Z. Naturforsch. 54b, 103—108 [1999]; eingegangen am 7. September 1998) 
  Published    1999 
  Keywords    Amine Hydrates, Hydrates, Melting Diagram, Water Polymers, Hydrogen Bonding 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0103.pdf 
 Identifier    ZNB-1999-54b-0103 
 Volume    54 
2Author    M. Athias, O. SengeRequires cookie*
 Title    Fixation o f Neutral M olecules in the Binding Cavity of Nonplanar Porphyrins -A Third Dodeca- phenylporphyrin Modification with NH -Solvent Hydrogen Bonding  
 Abstract    Reprint requests to Priv.-Doz. Dr. M. O. Senge. Fax: 0 3 0 -8 3 8 -4 2 4 8 . E-mail: mosenge@chemie.fu-berlin.de A third crystalline modification of dodecaphe-nylporphyrin is described in which the pyrrole ni­ trogen atoms are hydrogen-bonded to two etha­ nol molecules. This is the first crystallographic proof for the accessibility of nitrogen atoms in saddle-distorted free base porphyrins for hy­ drogen bonding. N o such coordination is possible in either planar or ruffled porphyrins. Thus, the possibility exists to utilize conformationally dis­ torted porphyrins for the binding of neutral m ole­ cules. 
  Reference    Z. Naturforsch. 54b, 821 (1999); received March 2 1999 
  Published    1999 
  Keywords    Porphyrins, Steric Strain, Conformational Flexi­ bility, Crystal Structure, Hydrogen Bonding 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0821_n.pdf 
 Identifier    ZNB-1999-54b-0821_n 
 Volume    54 
3Author    Christoph Mockenhaupt, Ralf Eßmanna, HeinzDieter LutzRequires cookie*
 Title    [Ni(NH3 )6]S0 4 : Kristallstruktur und Infrarotspektren [Ni(NH3)6]S 0 4: Crystal Structure and Infrared Spectra  
 Abstract    The crystal structure of [Ni(NH3)6]S 0 4 has been determined by single-crystal X-ray dif­ fraction (P2,/c; Z = 4; a = 705.0(1), b = 1195.2(2), c = 1180.0(2) pm, ß = 96.14(3)°; 2271 reflections; R x = 3.94%). In the hitherto unknown structure type, both the [Ni(NH3)6]2+ and the S 0 42-ions form chains along [100], The six crystallographically different ammine ligands of the distorted [Ni(NH3)6]2+ octahedra are involved in hydrogen bonds to six crystallographically equivalent S 0 42-ions (site symmetry C |). The strength of the hydrogen bonds differs strongly (i'od ° f matrix isolated N H 2D molecules: 2378 -2494 cm -1 , N -O distances: 272 -340 pm). The temperature evolution of the IR bands reveals the decrease of the dynamic orientational disorder of the N H 3 molecules with decreasing temperature. 
  Reference    Z. Naturforsch. 54b, 843—848 (1999); eingegangen am 8. März 1999 
  Published    1999 
  Keywords    Hexammine Nickel Sulfate, Ammoniates, Crystal Structure, IR Data, Hydrogen Bonding 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0843.pdf 
 Identifier    ZNB-1999-54b-0843 
 Volume    54 
4Author    Michael Schur, Astrid Gruhl, Christian Näther, Inke Jeß, Wolfgang BenschRequires cookie*
 Title    (CH3NH3)2Sb2S4, a New Thioantimonate(III) with Building Groups Stabilized by Hydrogen Bonds  
 Abstract    (CH3NH3)2Sb2S4 has been isolated from the reaction of antimony with sulfur in the presence of manganese in an ethanolic solution of methylamine under solvothermal conditions. Two pyramidal SbS? units are linked via common S-S edges to give dimeric Sb2S42-anions, which are joined via secondary Sb --S contacts of 3.074(2) and 2.975(2) A forming infinite 1 [SbS2]-^n chains consisting of edge-linked xp-SbS4 trigonal bipyramids. The cis configuration o? the Sb2S42-anions in the title compound is observed for the first time. A specific hydrogen-bonding pattern between the amino-hydrogen and the sulfur atoms stabilizes this configuration and gives rise to anionic layers separated by the methyl groups. 
  Reference    Z. Naturforsch. 54b, 1524—1528 (1999); received July 21 1999 
  Published    1999 
  Keywords    Thioantimonates, Solvothermal Synthesis, Crystal Structure, Hydrogen Bonding, Polymerie Anions 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1524.pdf 
 Identifier    ZNB-1999-54b-1524 
 Volume    54 
5Author    Saalfrank, JochenN. Achtrab, Stephan Reck, Frank HampelRequires cookie*
 Title    Synthese und Aggregatbildung eines 5-Hydroxy-2,5-dihydropyrrols. Enantiomerenreine, eindimensionale Stränge durch Wasserstoff- brückenbindungen und chiroselektive Selbstorganisation [1]  
 Abstract    Synthesis and A ggregation o f a 5-H ydroxy-2,5-dihydropyrrole. E nantiom erically Pure, O ne-dim ensional Strands via Hydrogen Bonds and Chiroselective S eif O rganization [ 1 ] R olf W. Reaction of dimethyl 1,3-acetonedicarboxylate 8 with oxalylchloride 2 and magnesium chlo­ ride as catalyst yielded 2,3-dioxo-2,3-dihydrofuran 9, which is in equilibrium with tautomer 10 (9:10 = 1:2). Addition of thionyl chloride to a mixture of 9/10 afforded 3-chloro-2(5H)-furanone 11. The structure of 11 was unequivocally established by X-ray diffraction, which indirectly pro­ ved the structure of 10 as well. Ring opening of 11 by nucleophilic attack with benzylamine 14 in C2-position and subsequent recyclization led to racemic 3-chloro-5-hydroxy-2-oxo-2,5-di-hydropyrrole 15. According to a single crystal X-ray analysis, 15 aggregates via stereospecific self selection through hydrogen bonds to give chiroselectively the one-dimensional strands 1 1(S)-15] and I [(R)-1SI 
  Reference    Z. Naturforsch. 54b, 179—186 (1999); eingegangen am 28. September 1998 
  Published    1999 
  Keywords    2(5H)-Furanones, Hydrogen-Bonding, Chiral Recognition, One-Dimensional Strand, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0179.pdf 
 Identifier    ZNB-1999-54b-0179 
 Volume    54 
6Author    Biing-Chiau Tzeng, Johann Zank, Annette Schier, Hubert SchmidbaurRequires cookie*
 Title    The Structural Chemistry of GoId(I) Quinoline-2-thiolate and Iodide Complexes of Polytertiary Phosphines  
 Abstract    Treatment of (chloro)gold(I) complexes of di-and tetra-tertiary phosphines with equivalent quantities of sodium quinoline-2-thiolate in methanol / dichloromethane affords the correspond­ ing (phosphine)gold(I) quinoline-2-thiolates in high yields. The di-and tetranuclear complexes, respectively, of a,u>bis(diphenylphosphino)-propane (1), -butane (2) and -pentane (3) and of tris(2-diphenylphosphino-ethyl)phosphine (4) have been obtained as crystalline solids, and the structures of 2 and 4 have been determined by single crystal X-ray diffraction studies. Un­ expectedly, the molecules of 2 are loosely aggregated into strings via weak intermolecular gold-sulfur, not via Au-Au interactions. Compound 4 is a monomeric tetranuclear cluster in the solid state with two intramolecular gold-gold bonds. Bis(2-diphenylphosphino-ethyl)-phenylphosphine (PPP) forms trinuclear complexes with gold(I) chloride, bromide and iodide (5a -c). The iodide complex features a chain structure through intermolecular Au -Au contacts between the two terminal P-Au-I units. The closest contacts between the chains are determined by Au-I and I -I interactions of the central P-Au-I unit. 
  Reference    Z. Naturforsch. 54b, 825—831 (1999); received April 19 1999 
  Published    1999 
  Keywords    Gold(I) Complexes, Thiolate Complexes, Aurophilicity, Hydrogen Bonding, Polytertiary Phos-phine Complexes 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0825.pdf 
 Identifier    ZNB-1999-54b-0825 
 Volume    54 
7Author    D. Blaschette, PeterG. JonesRequires cookie*
 Title    Polysulfonylamine, CXVII [1]  
 Abstract    Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Sechs systematisch variierte s££.-Ammonium-dimesylamide mit sechs verschiedenen null-, ein-oder zweidimensionalen Wasserstoffbrückenmustern Polysulfonylamines, C X V II [1] H ydrogen B onding in Crystalline O n iu m Dimesylamides: Six Systematically Varied sec. -A m m onium Dimesylamides Exhibiting Six D ifferent Zero-, One-, or Two-Dimensional Hydrogen B onding Patterns O liver Moers, Karna W ijaya, D agm ar Henschel, A rm a n In order to examine packing preferences and hydrogen bond patterns in secondary ammo­ nium salts, low-temperature X-ray analyses were conducted for six compounds of general formula R^N H ^M eSO ^hN ", where R 2NH2 = Me2NH2 (1, triclinic, space group P I), 
  Reference    Z. Naturforsch. 54b, 1420—1430 (1999); eingegangen am 13. Juli 1999 
  Published    1999 
  Keywords    Di(methanesulfonyl)amide, Secondary Ammonium Cation, Crystal Structure, Hydrogen Bonding, Crystal Engineering 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1420.pdf 
 Identifier    ZNB-1999-54b-1420 
 Volume    54 
8Author    Dagmar Henschel, Oliver Moers, Karna Wijaya, Blaschette Arm, PeterG. JonesRequires cookie*
 Title    Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Drei prim. -Ammonium-dimesylamide mit zwei-oder dreidimensionalen Wasserstoffbrückenmustern Polysulfonylamines, CXVIII [1] Hydrogen Bonding in Crystalline Onium Dimesylamides: Three prim. -Ammonium Dimesylamides Exhibiting Two-or Three-Dimensional Hydrogen Bond Patterns  
 Abstract    In order to study hydrogen bonding patterns in primary ammonium salts and the hydrogen bond acceptor potential of the dimesylamide anion, low-temperature X-ray structures have been determ ined for the 1:1 salts R N H ^M eSC ^^N -, where R = Et (1, monoclinic, space 
  Reference    Z. Naturforsch. 54b, 1431—1440 (1999); eingegangen am 13. Juli 1999 
  Published    1999 
  Keywords    Di(methanesulfonyl)amide, Primary Ammonium Cation, Crystal Structure, Hydrogen Bonding, Ionic Self-Clathrate 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1431.pdf 
 Identifier    ZNB-1999-54b-1431 
 Volume    54 
9Author    K. Am, Wijaya, Oliver Moers, A. Rm, Blaschette, PeterG. JonesRequires cookie*
 Title    Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein antidromes Achtringmuster als robustes supramolekulares Synthon - Drei prototypische Strukturen Polysulfonylamines, CXIX [1, 2] Hydrogen Bonding in Crystalline Onium Dimesylamides: An Antidromic Eight-M embered Ring Pattern as a Robust Supramolecular Synthon - Three Prototypical Structures  
 Abstract    Syntheses and low-temperature X-ray structures are reported for three ionic solids of gen­ eral formula BH +(M eS 0 2)2N_, where B H + is 3,4,6,7,8,9-hexahydro-2//-pyrimido[l,2-tf]pyri-midinium (1, monoclinic, space group P 2 1/c), N,N'-diphenylformamidinium (2, monoclinic, P2xlc), or 2-phenylaminopyridinium (3, triclinic, P I, two independent formula units). As a common feature, the onium cations in question exhibit a difunctional hydrogen-bond donor sequence H -N -C (s p 2) -N -H geometrically complementary to an O -S -N fragment of the anion. Consequently, the three crystal packings consist of discrete cation-anion pairs (for­ mula units) assembled by an N -H --N and an N -H ---0 hydrogen bond. In both independ­ ent ion pairs of 3, the N -H ---N bond originates from the pyridinium centre and the N-H-O bond from the amino group. The eight-membered ring [graph set N2 = R2(8), antidromic] that results in all these prototypical structures has potential as a new and robust supramolecular synthon. In each case, short C-H-O contacts with H -O < 260pm and C-H-O ^ 140° are present; in 2, two Car-H ---0 hydrogen bonds are assisted by a C(formyl)-H -O contact and a n -n interaction to create a centrosymmetric formula unit dimer. 
  Reference    Z. Naturforsch. 54b, 1441—1449 (1999); eingegangen am 13. Juli 1999 
  Published    1999 
  Keywords    Di(methanesulfonyl)amide, Onium Cation, Crystal Structure, Hydrogen Bonding, Molecular Recognition, Supramolecular Synthon 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1441.pdf 
 Identifier    ZNB-1999-54b-1441 
 Volume    54