| | 1 | Author
| Di, Stephanie Janeda, Dietrich Mootz | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-0103.pdf | | | | Identifier
| ZNB-1999-54b-0103 | | | | Volume
| 54 | |
| 3 | Author
| Christoph Mockenhaupt, Ralf Eßmanna, HeinzDieter Lutz | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-0843.pdf | | | | Identifier
| ZNB-1999-54b-0843 | | | | Volume
| 54 | |
| 4 | Author
| Michael Schur, Astrid Gruhl, Christian Näther, Inke Jeß, Wolfgang Bensch | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1524.pdf | | | | Identifier
| ZNB-1999-54b-1524 | | | | Volume
| 54 | |
| 5 | Author
| Saalfrank, JochenN. Achtrab, Stephan Reck, Frank Hampel | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-0179.pdf | | | | Identifier
| ZNB-1999-54b-0179 | | | | Volume
| 54 | |
| 6 | Author
| Biing-Chiau Tzeng, Johann Zank, Annette Schier, Hubert Schmidbaur | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-0825.pdf | | | | Identifier
| ZNB-1999-54b-0825 | | | | Volume
| 54 | |
| 7 | Author
| D. Blaschette, PeterG. Jones | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1420.pdf | | | | Identifier
| ZNB-1999-54b-1420 | | | | Volume
| 54 | |
| 8 | Author
| Dagmar Henschel, Oliver Moers, Karna Wijaya, Blaschette Arm, PeterG. Jones | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1431.pdf | | | | Identifier
| ZNB-1999-54b-1431 | | | | Volume
| 54 | |
| 9 | Author
| K. Am, Wijaya, Oliver Moers, A. Rm, Blaschette, PeterG. Jones | Requires 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 | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1441.pdf | | | | Identifier
| ZNB-1999-54b-1441 | | | | Volume
| 54 | |
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