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  • Mixed ternary ReIII-halides  (1)
  • Pelvic anatomy  (1)
  • Rhenium halide hydrates  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Anal endosonography in healthy subjects and patients with idiopathic fecal incontinence (1994)
    Springer
    Diseases of the colon & rectum 37 (1994), S. 235-242 
    Details
    ISSN: 1530-0358
    Keywords: Anal endosonography ; Anal sphincters ; Fecal incontinence ; Pelvic floor musculature ; Anal manometry ; Pelvic anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract PURPOSE: This study investigates the normal ultrasono graphic morphology of pelvic floor striated muscle and evaluates whether there are differences between males and females and between healthy subjects and patients with idiopathic fecal incontinence. METHODS: Manometric and ultrasonographic studies of the anal canal were performed in 30 healthy volunteers and in 26 patients with idiopathic fecal incontinence. Verification of ultrasonographic findings was obtained by studying anatomic preparations. RESULTS: Ultrasonography reliably identified the internal and external anal sphincter and frequently visualized neighboring structures. In addition, it detected muscular structures that have not clearly been described previously. However, differences in external sphincter function between males and females and between healthy subjects and incontinent patients were not reflected by alterations in muscle thickness. CONCLUSIONS: Endosonography of the anal canal clearly delineates muscular structures and may even visualize structures that have been previously incompletely defined. However, it remains to be shown that differences in certain muscular functions have a morphologic correlate that can be detected by endosonography.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02048161
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  • 2
    Electronic Resource
    Electronic Resource
    Synthese, Kristallstruktur und thermischer Abbau von Cs1,5[Re3I3Cl7,5(H2O)1,5] (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 610 (1992), S. 15-19 
    Details
    ISSN: 0044-2313
    Keywords: Mixed ternary ReIII-halides ; synthesis ; crystal structure ; infrared spectroscopy ; thermal behaviour ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, Crystal Structure and Thermal Behaviour of Cs1,5[Re3I3Cl7,5(H2O)1,5]Dark brown tetrahedra of Cs1,5[Re3I3Cl7,5(H2O)1,5] crystallize on slow cooling of a hot saturated solution of ReI3 and CsCl in conc. hydrochlorid acid. The crystal structure (cubic, P43m (No. 215), a = 1241.06(3)pm, Vm = 287.8(1) cm3mol-1, Z = 4, R = 0.067, Rw = 0.037) is built up from isolated building units [Re3I3Cl7,5(H2O)1,5]1,5- with statistical distribution of chloride ions and water molecules in the in plane, terminal positions. Consistent with the result based on the X-ray analysis, the IR-spectrum shows one band for the OH stretching frequencies of the water molecules coordinated to the Re3 triangle at 3240 cm-1. The anions are arranged in the fashion of a cubic closest packing with the cesium ions occupying all octahedral and one quarter of the tetrahedral interstices. Temperature-dependent Guinier-Simon photographs in connection with DTA/TG investigations reveal that Cs1,5[Re3I3Cl7,5(H2O)1,5] releases water at 190°C accompanied with a structural transition and the dehydration product decomposes at 370°C to Cs2ReCl6-xIx, Re3I3+yCl6-y and rhenium metal.
    Notes: Tiefdunkelbraune Tetraeder von Cs1,5[Re3I3Cl7,5(H2O)1,5] Kristallisieren beim langsamen Eindunsten einer heißen, gesättigten Lösung von ReI3 und CsCl in konz. Salzsäure. In der Kristallstruktur (kubisch, P43m (Nr. 215), a = 1241,06(3) pm, Vm = 287,8(1) cm3mol-1, Z = 4, R = 0,067, Rw = 0,037) sind isolierte Baugruppen [Re3I3Cl7,5(H2O)1,5]1,5- mit statistischer Verteilung von Chlorid-Ionen und Wassermolekülen in den in plane, terminal-Positionen strukturbestimmend. übereinstimmend mit diesem röntgenographischen Befund beobachtet man im IR-Spektrum eine Bande für die Valenzschwingungen des Koordinationswassers bei 3240 cm-1. Die Anionen sind nach dem Motiv einer kubisch-dichtesten Packung angeordnet, die Caesium-Ionen besetzen in ihr sämtliche Oktaeder- und ein Viertel der Tetraederlücken. Heiz-Guinier-Simon-Aufnahmen und DTA/TG-Untersuchungen zeigen, daß Cs1,5[Re3I3Cl7,5(H2O)1,5] bei 190°C zunächst Koordinationswasser unter Änderung der Struktur abgibt und sich bei 370°C zu Cs2ReCl6-xIx, Re3I3+yCl6-y und Rhenium zersetzt.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926100103
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  • 3
    Electronic Resource
    Electronic Resource
    [Re3Br9(H2O)]·H2O - ein „Precursor“ für ReBr3 im ReCl3-TypProfessor Hinrich Seidel zum 60. Geburtstage am 7. November 1991 gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 603 (1991), S. 49-56 
    Details
    ISSN: 0044-2313
    Keywords: Rhenium halide hydrates ; synthesis ; crystal structures ; thermal properties ; i.r. spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: [Re3Br9(H2O)]·H2O  - a Precursor to ReBr3 in the ReCl3-Type StructureThe reaction of ReBr3 or “ReCl3·2H2O” with an aqueous solution of HBr leads on slow evaporation to dark brown single crystals of ReBr3·2/3 H2O. The crystal structure (monoclinic, C2/m (No. 12); Z = 4; a = 1399.0(2), b = 1062.4(1), c = 1030.0(2), β = 96.12(1)°, Vm = 229.2(4) cm3/mol; R = 0.067, Rw = 0.050) contains building units [Re3(μ-Br)3Br8(H2O)] that are connected via two edges to chains according to ∞1[Re3(μ-Br)3/1Br4/1Br4/2(H2O)] which are further connected by crystal water molecules. The IR spectrum clearly distinguishes between the two types of water molecules. The topotactic dehydration of ReBr3·2/3 H2O at 200°C yields in one step ReBr3 crystallizing with the ReCl3-type structure which has been unknown so far for ReBr3. This metastable modification of ReBr3 transforms to the ReI3-type at 420°C.
    Notes: Bei der Umsetzung von ReBr3 oder „ReCl3 · 2H2O“ mit wäßriger HBr-Lösung erhält man beim Eindunsten auf dem Sandbad dunkelbraune Einkristalle von ReBr3 · 2/3 H2O. In der Kristallstruktur (monoklin, C2/m (Nr. 12); Z = 4; a = 1399,0(2), b = 1062,4(1), c = 1030,0(2), β = 96,12(1)°, Vm = 229,2(4)cm3/mol; R = 0,067, Rw = 0,050) liegen Baugruppen [Re3(μ-Br)3Br8(H2O)] vor, die über zwei gemeinsame Kanten zu Ketten gemäß ∞1[Re3(μ-Br)3/1Br4/1Br4/2 (H2O)] verknüpft und die ihrerseits durch Kristallwasser miteinander verbunden sind. In den IR-Spektren lassen sich die beiden Arten von Wasserliganden deutlich unterscheiden. Die topotaktische Entwässerung von ReBr3 · 2/3 H2O führt in einem Schritt bei 200°C zu ReBr3 im ReCl3-Typ, der bislang für ReBr3 nicht beobachtet wurde. Diese metastabile Form wandelt sich bei 420°C in den ReI3-Typ um.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916030108
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