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1Author    Hans-Georg Von Schnering, Wolfgang MayRequires cookie*
 Title    Die Struktur des 2  
 Abstract    One of the diastereomeres of 2,3,4,6,7,8-hexamethyl-2,3,4,6,7,8-hexaphosphabicyclo-[3,3,0]octane (PMe)öC2H2 crystallizes in the space group P2i/n with four molecules per unit cell. Two independent molecules are nearly identical in shape but differ by inter-molecular packing. The five-membered rings have a skew chair conformation with all exocyclic methyl groups in axial positions leading to a staggered all-trans conformation of the bicyclic system. The mean bond lengths are P-P = 220.9 pm, P-C = 185.9 pm and C-C = 151.9 pm. 
  Reference    Z. Naturforsch. 33b, 698—698 (1978); eingegangen am 24. April 1978 
  Published    1978 
  Keywords    Carbaphosphane, Molecular Structure, Crystal Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0698.pdf 
 Identifier    ZNB-1978-33b-0698 
 Volume    33 
2Author    G. Struckmeier, J. Engel, U. ThewaltRequires cookie*
 Title    Molekül-und Kristallstruktur des 5.5' -Diethoxycarbonyl-3.3' -diethyl-4.4' -dimethyl-pyrromethen-hydrobromids Crystal and Molecular Structure of 5,5'-Diethoxycarbonyl-3,3'-chethyl-4,4'-cÜmethyl-pyiTomethene Hydrobromide  
 Abstract    The crystal and molecular structure of the title compound has been determined by X-ray diffraction. The compound possesses an (almost) planar Z configuration. The ions form ion pairs in the solid state: each bromide anion is connected via two hydrogen bonds with a cation. The crystal data are: space group P2i/n with Z = 4; cell dimensions a = 14.097(2), b = 11.591(2), c = 14.133(3) A, ß = 106,22(2)°. 
  Reference    Z. Naturforsch. 33b, 753—755 (1978); eingegangen am 12. April 1978 
  Published    1978 
  Keywords    Pyrromethenes, X-ray, Molecular Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0753.pdf 
 Identifier    ZNB-1978-33b-0753 
 Volume    33 
3Author    Dirk Dahmann, Hans Rose, Wolfgang WalzRequires cookie*
 Title    Darstellung und Struktur von Phosphazenylcyclophosphazenen Synthesis and Structure of Phosphazenylcyclophosphazenes  
 Abstract    Various phosphazenylcyclophosphazenes N3P3Xn(N = PA3)e-n with X = Cl, F, A = Me, Ph, NMe2, OEt, OPr», OBut" and n = 1-3 were obtained by desilylation methods. Chemical and spectroscopical properties dependent on the substituents are discussed. Isomers of di-and tri-substituted compounds were isolated and their structures elucidated by NMR spectroscopy. 
  Reference    Z. Naturforsch. 35b, 964—969 (1980); eingegangen am 14. Dezember 1979 
  Published    1980 
  Keywords    Phosphazenylcyclophosphazenes, Molecular Structure, Synthesis 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0964.pdf 
 Identifier    ZNB-1980-35b-0964 
 Volume    35 
4Author    Cyclic Diazastannylenes, Iii, M. VeithRequires cookie*
 Title    Cyclische Diazastannylene, DI 1 Die Kristall-und Molekülstruktur der monoklinen Phase von 1.3-Di-feri-butyl-2.2-dimethyl-1.3.2.4A 2 -diazasilastannetidin The Crystal and Molecular Structure of the Monoclinic Phase of l,3-Di-feri-butyl-2,2-dimethyl-l,3,2,4A 2 -diazasilastannetidine  
 Abstract    The crystal and molecular structure of the monoclinic phase of l,3-di-£eri-butyl-2,2-dimethyl-l,3,2,4A 2 -diazasilastannetidine has been determined from three-dimensional X-ray data collected on a two-circle diffractometer at —120 °C (MoKa radiation, 2623 re-flexions, R — 0,050). The crystals are monoclinic, space group C 2/c, with cell dimensions a = 10.655(5), b = 25.75(1), c = 17.33(1) A, ß = 106.8(1)° and Z = 12. Four monomeric (crystal site symmetry 2 (C2)) and four dimeric units (crystal site symmetry I (Cj)) are present in the structure interacting over tin-tin (3.68 A). Remarkable are the very short Sn-N bond (2.09 A) in the monomer and the donation bond Sn-N (2.39 Ä) in the dimer. The coordination of the tin atoms in the different units is discussed in detail. 
  Reference    (Z. Naturforsch. 33b, 7—13 [1978]; eingegangen am 5. September/6. Oktober 1977) 
  Published    1978 
  Keywords    Diazastannylenes, X-ray, Molecular Structure, Crystal Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0007.pdf 
 Identifier    ZNB-1978-33b-0007 
 Volume    33 
5Author    A. Müller, N. Mohan, H. BöggeRequires cookie*
 Title    Molekül-und Elektronenstruktur des Thioheteroanions [S2 WS2CoS2WS2] 2 - Molecular and Electronic Structure of the Thiohetero Anion [S2WS2CoS2WS2] 2  
 Abstract    The crystal and molecular structure of [(C6H5)4P]2[Co(WS4)2] was determined from single crystal X-ray diffraction data (space group P2i/c with a = 18.542(4), b — 15.443(2), c= 18.713(2) A, /?= 108.73(1)°, Z = 4). In the complex anion Co is coordinated by two bidentate chelating WS4 2 -anions, with a nearly tetrahedral surrounding of Co. The bond lengths in the planar metal sulfur ring CoS2W are Co-S = 2.26 A and W-S = 2.22 A, while the terminal W-S bonds are 2.14 A. 
  Reference    Z. Naturforsch. 33b, 978—982 (1978); eingegangen am 8. Mai 1978 
  Published    1978 
  Keywords    Crystal Structure, Molecular Structure, Thiohetero Anion, Electronic Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0978.pdf 
 Identifier    ZNB-1978-33b-0978 
 Volume    33 
6Author    H. J. Keller, R. Martin, U. TraegerRequires cookie*
 Title    Kristall-und Molekülstruktur eines  
 Abstract    "linearen 66 Festkörpers mit drei verschiedenen Metallsträngen: [Pt(dapn)2] [Pt(dapn)2Br2] [(Cu3Br5)2] (dapn = 1.2-Diaminopropan) Crystal and Molecular Structure of a Linear Chain Solid with Three Different Metal Chains: [Pt(dapn)2][Pt(dapn)2Br2][(Cu3Br5)2] (dapn = 1,2-diaminopropane) The compound {[Pt(dapn)2][Pt(dapn)2Br2]}(Cu3Br5)2, which was prepared by oxidation of Pt(dapn)2Br2 with CuBr2, crystallizes in the orthorhombic space group Bmmb (D^h), a = 5.617(4) A, b = 16.206(6) A, c = 22.00(1) A, Z = 2. The experimentally determined density is 3.22 g • cm -3 (calculated 3.40). The structure has been determined by Patterson and Fourier methods from single crystal diffractometer data and refined by least squares to R = 0.085 for 485 independent reflections. Crystals of the title compound contain halide-bridged copper and platinum chains. 
  Reference    Z. Naturforsch. 33b, 1263—1266 (1978); eingegangen am 14. Juli 1978 
  Published    1978 
  Keywords    Linear Chain Transition Metal Complexes, Crystal Structure, Molecular Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-1263.pdf 
 Identifier    ZNB-1978-33b-1263 
 Volume    33 
7Author    M. VeithRequires cookie*
 Title    Cyclische Diazastannylene, VIII [1] Die Kristall-und Molekülstruktur eines Iminostannylens: Sn3 (NC(CH3 )3 )4 H2 Cyclic Diazastannylenes, VIII [1] The Crystal and Molecular Structure of an Iminostannylene: Sn3(NC(CH3)3)4H2  
 Abstract    The crystal and molecular structure of the compound Sn3(NC(CH3)3)4H2 has been determined from X-ray data (R = 0.044). The crystals are cubic, space group Pa3, with cell dimension a — 1713.6(8) pm and Z = 8. The molecules, which have a seco-norcubane like Sn3N4 framework, are statistically disordered, thus forming closed packed pairs of molecules. The Sn3N4 cage deviates strongly from a cube, the bond angles at Sn approach-ing 80°, and at N 100°. The averaged Sn-N bond distance is 223(1) pm. 
  Reference    (Z. Naturforsch. 35b, 20—24 [1980]; eingegangen am 3. September/8. Oktober 1979) 
  Published    1980 
  Keywords    Iminostannylenes, X-ray, Crystal Structure, Molecular Structure, Disorder 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0020.pdf 
 Identifier    ZNB-1980-35b-0020 
 Volume    35 
8Author    Hans-Friedrich Klein, Joachim Groß, Jean-Marie Bassett, Ulrich SchubertRequires cookie*
 Title    Semicobaltate -Alkalimetall-Träger in Kohlenwasserstoffen Darstellung, Eigenschaften und Struktur von K[Co(C2H4)(PMe3)3]2 Semicobaltates -Alkali Metal Carriers in Hydrocarbons Synthesis, Properties, and Structure of K[Co(C2H4)(PMe3)3]2  
 Abstract    Semicobaltates (Co-1/2) containing olefin and trimethylphosphane ligands are synthe-sized from Co(olefin)(PMe3)3 and potassium metal. The X-ray crystal structure determina-tion of the title compound shows that the unit cell contains two K atoms in equal ionic contact with the ethylene ligands of four Co(C2H4)(PMe3)3 complex units, two of which are interacting with both K atoms. In solution the semicobaltates exist in hydrocarbon solvents under argon only, while in contrast under ethylene or nitrogen atmospheres or in donor solvents disproportionation occurs to give Co(O) and Co(-I) species. Allgemeines 
  Reference    Z. Naturforsch. 35b, 614—619 (1980); eingegangen am 3. Januar 1980 
  Published    1980 
  Keywords    Potassium-Ethylene Semicobaltate, Synthesis, Molecular Structure, Crystal Structure 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0614.pdf 
 Identifier    ZNB-1980-35b-0614 
 Volume    35 
9Author    Rainer Mattes, Franz WaldmannRequires cookie*
 Title    Molekülstruktureii, Schwingungsspektren und Konformation der Thiooxalsäurederivate CH3S-CO-CONH2, CH3S-CS-CONH2, C2H50-C0-CSNH2 und K[OSC-CONH2] Molecular Structure, Vibrational Spectra and Conformation of the Thiooxalic Acid Derivatives CH3S-CO-CONH2, CH3S-CS-CONH2, C2H50-C0-CSNH2 and K[OSC-CONH2]  
 Abstract    The crystal structures ofCH3S-CO-CONH2 (1), CH3S-CS-CONH2 (2), C2H50-C0-CSNH2 (3) and K[OSC-CONH2] (4) have been determined by single crystal X-ray diffraction. The molecules 1, 2 and 3 are nearly planar and form centrosymmetric dimers by N H • • • O or N-H--S hydrogen bonds with the amidic oxygen or sulfur atom as acceptor atoms. The anion of 4 is not quite planar. The torsional angle around the C-C bond is 18.4°. The con-formations of the title compounds are E, Z' (1 and 2), Z, Z' (3) and Z (4). According to the vibrational spectra, which are discussed briefly, 1 and 3 retain their conformation also in solution. 
  Reference    Z. Naturforsch. 38b, 335—340 (1983); eingegangen am 5. November 1982 
  Published    1983 
  Keywords    Molecular Structure, Conformation, Vibrational Spectra, Thiooxalic Acid Derivatives 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0335.pdf 
 Identifier    ZNB-1983-38b-0335 
 Volume    38 
10Author    Achim Müller, Winfried Hellmann, Uwe Schimanski, Rainer Jostes, WilliamE. NewtonRequires cookie*
 Title    On the Central Role of Sulfur in Multi Metal Aggregates with Different Electron Populations: [S2WS2CoS2WS2]' 1 - (n -2, 3)  
 Abstract    The hetero metal sulfur aggregates [Co(WS4)2] n ~ (with variable electron popula-tion: n = 2, 3) could be isolated as salts and characterized by physical measurements (in-cluding X-ray structure analysis). Experimental and theoretical investigations show that due to a strong metal -> ligand electron delocalisation WS4 2-(like M0S4 2 -) is a non-innocent ligand and that the additional charge upon reduction is located mainly at the S atoms of the ligand system. 
  Reference    Z. Naturforsch. 38b, 528—529 (1983); eingegangen am 12. November 1982 
  Published    1983 
  Keywords    Preparation, Crystal Structure, Molecular Structure, Electronic Structure, Thioanions 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0528_n.pdf 
 Identifier    ZNB-1983-38b-0528_n 
 Volume    38 
11Author    Liv Fernholt, Arne Haaland, Ragnhild Seip, Rüdiger Kniep, Lutz KorteRequires cookie*
 Title    The Molecular Structure of Selenium Dichloride, SeCl2, Determined by Gas Electron Diffraction  
  Reference    Z. Naturforsch. 38b, 1072—1073 (1983); eingegangen am 19. Mai 1983 
  Published    1983 
  Keywords    Molecular Structure, Selenium(II) Chloride, Gas Electron Diffraction 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1072.pdf 
 Identifier    ZNB-1983-38b-1072 
 Volume    38 
12Author    Otto Mündt, Heinz Riffel, Gerd Becker, Arndt SimonRequires cookie*
 Title    Element—Element-Bindungen, IV [1] Molekül-und Kristallstruktur des Tetramethyldiphosphans und -diarsans Element—Element Bonds, IV [1] Molecular and Crystal Structure of Tetramethyldiphosphane and -diarsane  
 Abstract    The molecular and crystal structures of the isotypic compounds tetramethyldiphosphane 1 and -diarsane 2 have been determined by single crystal X-ray diffraction (monoclinic; C2/m; Z = 2; 1/2: -155/-144 °C\a = 540.6(2)/555.8(2); b = 1131.0(6)/l 136.7(6); c -602.5(2)/612.8(2) pm;/? = 97.31(3)/95.24(3)°;P-P 221.2(1)/As-As 242.9(1) pm). In accordance with the crystallographically imposed symmetry 2/m, the molecules adopt antiperiplanar conformation. Their crystal structures are closely related to those of the homologues tetramethyldistibane 3 [1] and -dibismuthane 4 [3]. As found for the latter compounds, the E —E units (E = P, As) are also aligned in linear chains, but the intermolecular E---E contacts (P-P 381/As---As 370 pm) do not allow any extended interaction between molecules, which otherwise would result in thermochromic effects. 
  Reference    Z. Naturforsch. 43b, 952—958 (1988); eingegangen am 29. Februar 1988 
  Published    1988 
  Keywords    Tetramethyldiphosphane, Tetramethyldiarsane, Conformation, Molecular Structure, Crystal Structure 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0952.pdf 
 Identifier    ZNB-1988-43b-0952 
 Volume    43 
13Author    U. Lf Thewalt, Thomas WöhrleRequires cookie*
 Title    Titanium(IV) Fulvalene Complexes. Preparation and Structure of [CpTiPh2]-,(C10H 8)  
 Abstract    The green insoluble TiIV compound which is obtained by treating titanocene with HC1 reacts with PhLi to yield the fulvalene-bridged com pound [CpTiPh2]2(C l0H 8) 3(Ph). An X-ray struc­ ture analysis o f 3(Ph) shows, that the Ti atom s are in a trans arrangement with respect to the fulvalene group. Crystal data for 3(Ph) are as follows: C44H3gTi2, orthorhom bic, space group P 2 ,2 ,2 ,, with a = 11,3 8 5(2),/)= 14,510(2), c = 19,489(4) A, Z = 4. The crystals exhibit enan-tiomorphism. 
  Reference    Z. Naturforsch. 48b, 603 (1993); eingegangen am 28. Dezember 1992 
  Published    1993 
  Keywords    Titanium(IV) Complex, Fulvalene Ligand, Molecular Structure 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0603.pdf 
 Identifier    ZNB-1993-48b-0603 
 Volume    48 
14Author    Bogdan Lesyng, W. Olfram SaengerRequires cookie*
 Title    Influence of Crystal Packing Forces on Molecular Structure in 4-Thiouridine. Comparison of anti and syn Forms  
 Abstract    4-thiouridine crystallizes from butyric acid in the form of yellow needles, monoclinic space group P2 j with a = 10.136 (3), b = 4.843 (2), c = 11.257 (3) A, ß = 93.91 (5) °. The crystal structure was solved on the the basis of 895 X-ray counter data using direct methods and refined to a reliability index of R = 5.6%. 4-thiouridine is in the anti conformation, the torsion angle 0(1')-C(1')-N(1)-C(6) being 26.5°. Pseudorotation parameters Tmax = 41.1° and P = 15.7° refer to C(3')-endo (3E) envelope form of the ribose. The conformation about the C (5')-0(5') bond is gauche, gauche. The present structure is compared with the previous one, crystallized from water as sesquihydrate and existing as the syn conformer (W. Saenger and K. H. Scheit, J. Mol. Biol. 50, 153-169 (1970). The influence o f crystal packing forces on flexible molecules such as nucleosides is discussed. 
  Reference    Z. Naturforsch. 36c, 956 (1981); received July 6 1981 
  Published    1981 
  Keywords    4-Thiouridine, Crystal Packing Forces, Molecular Structures 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0956.pdf 
 Identifier    ZNC-1981-36c-0956 
 Volume    36 
15Author    A.N G ArgRequires cookie*
 Title    Correlation of Mössbauer Quadrupole Splitting ( zI/?q) and Infrared Cyanide Frequency Separation in Alkali Metal Ferricyanides  
 Abstract    Mössbauer and infrared spectra of the alkali metal ferricyanides M* [Fe(CN)6] • n H 20 , where M1 = H , Li and N a were studied at room temperature. All the three compounds displayed a doublet with small quadrupole splitting (AEq). Infrared spectra of these compounds in solid state gave two frequencies for C = N stretching vibrations with their separation (Av) in increasing order which was found to be linearly correlated with AEq. A plausible explanation has been given in terms of the interaction of Li+ and Na+ cations w ith the CN-ligands of octahedrally symmetric ferricyanide anion [Fe(CN)6] 3-similar to that of hydrogen atoms which are hydrogen bonded in H 3Fe(CN)6. 
  Reference    (Z. Naturforsch. 30b, 96—98 [1975]; received February 1 /September 3 1974) 
  Published    1975 
  Keywords    Mössbauer Effect, IR Spectra, Ferricyanide Complexes, Hydrogen Bonding, Molecular Structure 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0096.pdf 
 Identifier    ZNB-1975-30b-0096 
 Volume    30 
16Author    Peter Paetzold, Peter Böhm, Anette Richter, Ernst SchollRequires cookie*
 Title    Synthese, Basenaddition und Fragmentierung der 1.3.2-Dioxaborolan-4-one Synthesis, Addition of Bases, and Fragmentation of l,3,2-Dioxaborolane-4-ones  
 Abstract    2,5,5-Triorgano-l,3,2-dioxaborolane-4-ones RB(-O-CO-CXY-O-) (2-6) can be prepared from a-hydroxycarboxylic acids XYC(OH)-COOH and dihalogenoorganoboranes RBHal2. They are much weaker Lewis acids than the 2-organo-l,3,2-dioxaborolane-4,5-diones RB(-O-CO-CO-O-) (1). The compounds 1 give 1:1 adducts with the bases DINO, MANO, PyO, and PSy, respectively; the crystal structure determination of If • DINO reveals a simple BO-coordination between the components. On electron impact, the chief fragmen-tation path is the elimination of C02 from compounds 1-6. The thermal degradation of 2-6 seems to be rather complicated in the liquid phase but is unique in the gaseous phase forming the compounds (RBO)3, CO, and XYC = 0. 
  Reference    (Z. Naturforsch. 31b, 754—764 [1976]; eingegangen am 5. Dezember 1975/8. März 1976) 
  Published    1976 
  Keywords    Dioxaborolanones, Molecular Structure, Mass Spectra, Crystal Structure, Gas-phase Thermolysis 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0754.pdf 
 Identifier    ZNB-1976-31b-0754 
 Volume    31 
17Author    Jochen Ellermann, HelmutA. Lindner, Horst Schössner, Gerhard Thiele, Gerd ZoubekRequires cookie*
 Title    Chemie poly funktioneller Liganden, 48 [1] Synthese, Schwingungsspektren, Molekül-und Kristallstruktur eines Organocyclotriarsan-pentacarbonylchrom-Komplexes Chemistry of Polvfunctional Ligands, 48 [1] Synthesis, Vibrational Spectra, Molecular and Crystal Structure of an Organocyclotriarsane-pentacarbonylchromium Complex  
 Abstract    The organocyclotriarsane, CH3C(CH2As)3 (1), reacts with chromium hexacarbonyl on ultraviolet irradiation to give the complex CH3C(CH2As)3Cr(CO)5 (2), in which the cyclo-triarsane is behaving as a monodentate ligand. The crystal structure of 2 has been determinated by X-ray diffraction. The monoclinic unit cell (space group P2i/n) contains 4 isolated molecules in a hexagonal closest packing. The mass spectrum of 2 shows the parent peak and clear fragmentation patterns. The infrared and Raman spectra are reported for 1 and 2 in the 3000-30 cm -1 region. Most of the fundamental vibrations are assigned. 
  Reference    Z. Naturforsch. 33b, 1386—1392 (1978); eingegangen am 10. Oktober 1978 
  Published    1978 
  Keywords    Organocyclotriarsane-pentacarbonylchromium Complex, Vibrational Spectra, Crystal Structure, Molecular Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-1386.pdf 
 Identifier    ZNB-1978-33b-1386 
 Volume    33 
18Author    R. Tacke, M. Strecker, W. S. Sheldrick, E. Heeg, B. Berndt, K. M. KnapsteinRequires cookie*
 Title    Sila-Pharmaka, 14. Mitt. [1] Darstellung und Eigenschaften sowie Kristall-und Molekülstruktur von Sila-Difenidol Sila-Drugs, 14 th Communication [1] Preparation and Properties as well as Crystal and Molecular Structure of Sila-Difenidol  
 Abstract    Sila-difenidol (6 b), a sila-analogue of the drug difenidol (6 a), was synthesized according to Scheme 1. 6 b and its new precursors 3 and 5 were characterized by their physical and chemical properties, and their structures confirmed by elementary analyses, *H NMR and mass spectroscopy. 6 b crystallizes orthorhombic P 2i 2i 2i with a — 11.523(1), b = 14.366(4), c = 11.450(1) A, Z = 4, Dber = 1.14 gcm-3. The structure was refined to fi = 0.050 for 1897 reflexions. A strong nearly linear intramolecular 0-H---N hydrogen bond of 2.685 A is observed. The anticholinergic, histaminolytic and musculotropic spasmolytic activities of 6 a and 6 b are reported. 
  Reference    Z. Naturforsch. 34b, 1279—1285 (1979); eingegangen am 16. März 1979 
  Published    1979 
  Keywords    Sila-Difenidol, Syntheses, Crystal Structure, Molecular Structure, Biological Activity 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1279.pdf 
 Identifier    ZNB-1979-34b-1279 
 Volume    34 
19Author    Fritz Seel, Rudi Lehnert, Eckhard Bill, Alfred TrautweinRequires cookie*
 Title    Produkte der Umsetzung des Pentacarbonyleisens mit N-substituierten Imidazolen Products of the Reaction of Pentacarbonyl Iron with N-Substituted Imidazoles  
 Abstract    1-Methyl-, 1-ethyl-, 1,2-dimethyl-and 1,2,3,4-tetramethylimidazole react with penta-carbonyliron to yield [FeIm6][Fe(CO)8] (1), [FeIm6][Fe(CO)4]2 (2), [FeIm4][Fe(CO)4] (3) and Fe(Im)(CO)2 (4) (Im = substituted imidazole). The crystal and molecular structures of 1 and 2 have been determined by X-ray diffraction. For 1 and 2 agreement between calculated and measured Mössbauer absorption intensities was obtained by taking into account Debye-Waller-factors, which were derived from the X-ray diffraction experiments. 
  Reference    Z. Naturforsch. 35b, 631—638 (1980); eingegangen am 18. Dezember 1979 
  Published    1980 
  Keywords    Imidazole Derivatives, Pentacarbonyl Iron, Crystal Structure, Molecular Structure, Mößbauer Spectra 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0631.pdf 
 Identifier    ZNB-1980-35b-0631 
 Volume    35 
20Author    Ulf Thewalt, Bernhard MüllerRequires cookie*
 Title    S4X4 and its Derivatives: Preparation. Structure and Thermolysis of CuBr * S4X4  
 Abstract    The crystalline black polymeric Cui complex CuBr • S4N4 can be prepared in high yield from Cu(NÜ3)2 • 3 HoO, NH4Br and S4N4 in methanol. An X-ray structure analysis shows that it is isostructural with CuCl • S4N4. The crystals contain [CuBr]^ chains and the Cu atoms of adjacent chains are bridged by S4N4 groups. The Cu atoms have an almost tetrahedral coordination. Tho l,3-N,N'-bonded S4N4 group has the same conformation and, within narrow limits, the same dimensions as free S4N4. Thermolysis of CuBr • S4N4 at 180 C C yields among other products CuBr, S4N4, and S2N2. 
  Reference    Z. Naturforsch. 37b, 828—831 (1982); eingegangen am 17. Februar 1982 
  Published    1982 
  Keywords    Copper(I) Complex, Tetrasulfurtetranitrid Adduct, Disulfurdinitrid, Molecular Structure, Inorganic Polymer 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0828.pdf 
 Identifier    ZNB-1982-37b-0828 
 Volume    37 
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