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  • Inorganic Chemistry  (9)
  • Hemocytes  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Verhalten des Goldschmidtschen Ferro- und Manganbors beim Erhitzen im Schwefelwasserstoff- und Chlorströme und über den mutmasslichen chemischen Charakter der Boride Schwefelwasserstoffstrom (1910)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 66 (1910), S. 361-399 
    Details
    ISSN: 0863-1778
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Man kann Borsulfid durch Glühen von Ferrobor im H2S herstellen, wobei der Prozess zwischen 300 und 400° am regsten verläuft; das Sulfid ist krystallisiert, glasig und amorph erhältlich.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19100660122
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  • 2
    Electronic Resource
    Electronic Resource
    Ultramarine (1929)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 183 (1929), S. 37-76 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19291830104
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  • 3
    Electronic Resource
    Electronic Resource
    Über die Konstitution der Ultramarine (1930)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 189 (1930), S. 91-100 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Bei chemischen Eingriffen und durch Bestrahlung wurde auf einen neuen Weg, das Cl′ des Sodaliths an Na gebunden, gefolgert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19301890109
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  • 4
    Electronic Resource
    Electronic Resource
    Synthese von Borsulfid aus Ferro- und Manganbor (1908)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 59 (1908), S. 127-135 
    Details
    ISSN: 0863-1778
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19080590116
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  • 5
    Electronic Resource
    Electronic Resource
    Encapsulation of implanted foreign bodies by hemocytes in Locusta migratoria and Melolontha melolontha (1975)
    Springer
    Cell & tissue research 160 (1975), S. 283-289 
    Details
    ISSN: 1432-0878
    Keywords: Insect ; Hemocytes ; Capsules
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Sterile fragments of cellophane, cat-gut, cotton, or beef muscle implanted into the body cavity of Locusta migratoria and Melolontha melolontha are immediately surrounded by granular hemocytes which form a multi-layered capsule around each foreign body. The cytoplasm of the granular hemocytes of the outer zone of the capsule in both species shows an accumulation of fibrous material (microtubules and microfilaments). None of the implanted material appeared to be degraded.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222040
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  • 6
    Electronic Resource
    Electronic Resource
    Role of the “thrombocytoids” in capsule formation in the dipteran Calliphora erythrocephala (1975)
    Springer
    Cell & tissue research 162 (1975), S. 343-348 
    Details
    ISSN: 1432-0878
    Keywords: Insects ; Hemocytes ; Capsules
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Of the three hemocyte types present in the blood of Calliphora, only one participates in capsule formation around implanted cellophane. This hemocyte, the thrombocytoid, shows in the blood a tendency to dissociate into numerous small cytoplasmic fragments, comparable to the mammalian megakaryocyte. This tendency is dramatically increased during the process of encapsulation. Most of the intact thrombocytoids and the numerous fragments participating in capsule formation do not show any particular modifications in their cytoplasm during this process, which corresponds to a mere sequestration of the implant. Dense material, resulting from necrotic cell debris and hemolymph lipoproteins, is often observed between the cellophane and encapsulating thrombocytoids, which apparently participate in the resorption of this material.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220180
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  • 7
    Electronic Resource
    Electronic Resource
    Untersuchungen mit Quecksilber(I)-Verbindungen und Zinn(II)-Halogeniden in geschmolzenem Quecksilber(II)-bromidProfessor Werner Bues zum 60. Geburtstage am 12. November 1980 gewidmet (1980)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 469 (1980), S. 32-44 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Investigations with Mercury (I) Compounds and Tin (II) Halides in Molten Mercury (II) BromideMolten mercuric bromide HgBr2 (experimental temperature 242°C) is a very stabilizing medium for mercurous compounds. The covalent mercurous halides Hg2X2 are weak solvobases in molten HgBr2, i. e. in solution exist only a few dissociated associates [Hg2X(Hg2X2)n]+ (HgBr2X)-, which react with a solvoacid HgBrA (A i. e. ClO4) to a hitherto unknown type of compound Hg2XA. Mercurous salts of mineral acids Hg2A2 are solvolized in the melt (HgBrA, Hg2BrA, Hg2Br2…). The state of equilibrium and the type of the products are mainly influenced by the anion A. In contrary to the lead(II) halides PbX2 the tin(II) halides SnX2 react not as Sn(HgBr3)2 (two-basic) but onebasic as a Lewis base. Conductometric investigations show that SnBr2 formes a soluble 2:1 adduct with Hg2Br2, which can be precipitated as perchlorate with NEt4ClO4 (Et = C2H5). The same reaction takes place, if the Lewis base SnBr2 attacks the Lewis acid Hg2BrClO4, which was generated by 4 different methods.
    Notes: Geschmolzenes Quecksilber(II)-bromid (Arbeitstemperatur 242°C) erweist sich als stabilisierendes Medium für Quecksilber(I)-Verbindungen. Die kovalenten Quecksilber(I)-Halogenide Hg2X2 verhalten sich wie schwache Solvobasen, die mit Solvosäuren HgBrA (A z.B. CIO4) unter Bildung bisher unbekannter Quecksilber(I)-Halogenosalzen Hg2XA reagieren. Quecksilber(I)-Salze von Mineralsäuren Hg2A2 unterliegen in Schmelze der Solvolyse. Die Lage des Gleichgewichts und die Art der Solvolyseprodukte wird entscheidend vom Anion A beeinflußt. Im Gegensatz zu den Blei(II)-Halogeniden PbX2 reagieren die Zinn(II)-Halogenide SnX2 nicht zweibasig als Sn(HgBr3)2, sondern einbasig als Lewis-Basen. Zinn(II)-bromid bildet mit Hg2Br2 ein lösliches 2:1 Addukt, welches mit NEt4ClO4 (Et = C2H5) als Perchlorat ausgefällt werden kann. Zur selben Reaktion kommt es bei Angriff der Lewis-Base SnBr2 auf die Lewis-Säure Hg2BrClO4, welche nach 4 verschiedenen Methoden erzeugt wurde.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19804690106
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  • 8
    Electronic Resource
    Electronic Resource
    Charakterisierung und katalytische Aktivität von Ni2+-ausgetauschten X- und Y-Zeolithen. II. Die Reduzierbarkeit des Ni2+ durch niedere Olefine und die Dimerisierungsaktivität der Ni2+-ausgetauschten Zeolithe (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 521 (1985), S. 207-214 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Characterization and Catalytic Activity of Ni2+ -X and -Y Zeolites. II. Reducibility of Ni2+ by Low Olefines and the Dimerization Activity of the Ni2+ -ZeolitesThe reducibility of Ni2+ in X and Y zeolites by hydrogen, but-1-ene, propene, and ethene is compared. The degree of reduction was determined after isothermal reduction and reoxidation by the TPR method. At 673 K on X zeolites the reducibility decreases in the order: H2 〉 but-1-ene, propene 〉 ethene. On Y zeolites an inversion takes place: but-1-ene, propene 〉 H2, ethene. The mechanism of reduction by olefins should be determined by an intermediate splitting off of a hydride ion as a reducing species. Such a mechanism explains the higher degree of reduction in the more acid Y zeolites. Assuming low valent nickel as an active center in ethen dimerization the induction period results from the reduction of Ni2+ ions.
    Notes: Die Reduzierbarkeit des Ni2+ in X- und Y-Zeolithen durch Wasserstoff, But-l-en, Propen und Ethen wird verglichen. Der Reduktionsgrad wurde nach isothermer Reduktion und Reoxydation durch temperaturprogrammierte Reduktion bestimmt. Für die Reduzierbarkeit bei 673 K ergibt sich für einen X-Zeolith folgende Reihenfolge: H2 〉 But-l-en, Propen 〉 Ethen. Am Y-Zeolith erfolgt eine Umkehrung: But-l-en, Propen 〉 H2, Ethen. Der Mechanismus der Reduktion durch Olefine sollte durch einen sauer katalysierten Olefinzerfall mit intermediärer H- -Abspaltung als reduzierendem Agenz bestimmt sein. Ein solcher Mechanismus erklärt die stärkere Reduktion des Ni2+ in Y-Zeolithen durch Olefine. Nimmt man als aktives Zentrum für die Ethendimerisierung niedrigwertiges Nickel an, so wird die bei der Ethendimerisierung auftretende Induktionsperiode durch die notwendige Reduktion des Ni2+ erklärbar.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855210224
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  • 9
    Electronic Resource
    Electronic Resource
    Neue Silicate mit „Stuffed Pyrgoms“: CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 [1] und RbNaLi4{Li[SiO4]}2 [2]Professor Horst Sabrowsky zum 60. Geburtstage gewidmet (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1495-1508 
    Details
    ISSN: 0044-2313
    Keywords: New Lithosilicates ; preparation ; crystal structure ; MAPLE and CHARDI calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: More Silicates with „Stuffed Pyrgoms“: CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 [1] and RbNaLi4{Li[SiO4]}2 [2]Single crystals of the new silicates CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 and RbNaLi4{Li[SiO4]}2 as well as powder (Rb-containing compounds only) were obtained for the first time. The samples were prepared by heating well ground mixtures of the binary oxides in Ni and Ag tubes, respectively. The structure determination was carried out by four-circle diffractometer data (MoKα radiation; Siemens AED 2):CsKNaLi9{Li[SiO4]}4: tetragonally prismatic crystals, light yellow; 726 I0(hkl), R = 4.4%, Rw = 2.8%; a = 1 102.0(6), c = 637.9(5) pm; Z = 2; space group I4/m; 2 CsO0.55 + Li4TlO4 + glas (560°C, 15 d).CsKNa2Li8{Li[SiO4]}4: tetragonally prismatic crystals, light yellow; 727 I0(hkl), R = 4.4%, Rw = 2.6%; a = 1 103.5(7), c = 637.7(4) pm; Z = 2; space group I4/m; 1.1 CsO0.61 + 1.1 KO0.55 + 1.4 NaO0.52 + 6.5 Li2O + 4 SiO2 (600°C, 60 d).RbNa3Li8{Li[SiO4]}4: tetragonally prismatic crystals, colourless; 600 I0(hkl), R = 2.3%, Rw = 2.0%; a = 1 092.08(6), c = 632.76(4) pm; Z = 2; space group I4/m; 4 RbO0.57 + 3 NaO0.52 + 6.5 Li2O + 4 SiO2 (650°C, 63 d).RbNaLi4{Li[SiO4]}2: monoclinic, ball-shaped, colourless; 1 224 I0(hkl), R = 3.1%, Rw = 3.1%; a = 1 573.10(13), b = 630.48(5), c = 781.25(8) pm, b = 90.566(8)°; Z = 4; space group C2/m; 1.1 RbO0.52 + 1.2 NaO0.45 + 5 Li2O + 4 SiO2 (700°C, 40 d).
    Notes: Einkristalle der neuen Silicate CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 und RbNaLi4{Li[SiO4]}2, sowie Pulver der Rb-haltigen Verbindungen wurden dargstellt. Die Proben entstanden durch Tempern inniger Gemenge binärer Oxide in geschlossenen Ni- bzw. Ag-Bömbchen. Die Strukturaufklärung erfolgte jeweils durch Vierkreisdiffraktometerdaten (MoKα-Strahlung; Siemens AED 2):CsKNaLi9{Li[SiO4]}4: tetragonale Prismen, hellgelb; 726 I0(hkl), R = 4,4%, Rw = 2,8%; a = 1 102,0(6), c = 637,9(5) pm; Z = 2; Raumgruppe I4/m; 2 CsO0,55 + LiTlO4 + Duran-Glas (560°C, 15 d).CsKNa2Li8{Li[SiO4]}4: tetragonale Prismen, hellgelb; 727 I0(hkl), R = 4,4%, Rw = 2,6%; a = 1 103,5(7), c = 637,7(4) pm; Z = 2; Raumgruppe I4/m; 1,1 CsO0,61 + 1,1 KO0,55 + 1,4 NaO0,52 + 6,5 Li2O + 4 SiO2 (600°C, 60 d).RbNa3Li8{Li[SiO4]}4: tetragonale Prismen, farblos; 600 I0(hkl), R = 2,3%, Rw = 2,0%; a = 1 092,08(6), c = 632,76(4) pm; Z = 2; Raumgruppe I4/m; 4 RbO0,57 + 3 NaO0,52 + 6,5 Li2O + 4 SiO2 (650°C, 63 d).RbNaLi4{Li[SiO4]}2: monoklin, kugelförmig, farblos; 1 224 I0(hkl), R = 3,1%, Rw = 3,1%; a = 1 573,10(13), b = 630,48(5), c = 781,25(8) pm, b = 90,566(8)°; Z = 4; Raumgruppe C2/m; 1,1 RbO0,52 + 1,2 NaO0,45 + 5 Li2O + 4 SiO2 (700°C, 40 d)
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200902
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  • 10
    Electronic Resource
    Electronic Resource
    Charakterisierung und katalytische Aktivität von Ni2+-ausgetauschten X- und Y-Zeolithen. I. TPR-Untersuchungen an NiNaX- und NiNaY-Zeolithen (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 520 (1985), S. 75-86 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Charaterization and Catalytic Activity of Ni2+ Exchanged X and Y Zeolites. I. TPR Studies on NiNaX and NiNaY Zeolites.The structure of TPR spectra of NiNaX and NaNiY zeolites variously exchanged is determined by the location of the cations. In case of X zeolites a peak appears with a maximum at 750-800 K (reduction on SII and SI, positions) and for higher exchange degrees an additional one at about 1000 K (reduction on SI positions). Three ranges of reduction may be separated in case of Y zeolites (reduction on SII, SI′, and SI). With increasing Si/Al ratios the maximum of the hightemperature peak is shifted to higher temperatures. The reduction at temperatures up to 800 K resulted in higher reduction degrees for X reolites while the overall reduction up to high temperatures led to higher reduction degrees for Y zeolites. The kinetic analysis by means of two different methods yielded the following activation energies: (85 ± 10) or (86 ± 2) kJ/mole, respectively, for the low-temperature peak, and (223 ± 12) or (214 ± 2) kJ/mole, respectively, for the high-temperature peak.
    Notes: Die Struktur der TPR-Kurven verschieden ausgetauschter NiNaX-und NiNaY-Zeolithe wird durch die unterschiedliche Kationenverteilung bestimmt. Bei X-Zeolithen erscheint ein Tieftemperturpeak mit einem Maximum im Bereich 750-800K und für höhere Austauschgrade zusätzlich ein Hochtemperaturpeak bei etwa 1000 K (Reduktion von Ni2+ suf SII- und SI′- bzw. SI-Positionen). Bei Y-Zeolithen Können drei Reduktionsbereiche (Reduction auf SII, SI und SI) unterschieden werden. Das Maximum des Hochtemperaturpeaks verschiebt sich mit steigendem Si/Al-Verhältnis zo höheren Temperaturen. Dei Reduzierbarkeit im Bereich niedrigerer Temperaturen ist für X-Zeolithe größer,dei bei Reduktion bis zo hohen Temperaturen erreichbaren Reduktionsgrade liegen für Y-Zeolithe höher. Die kinetische Analyse ergab für den Tieftemperaturpeak je nach der gewählten Methode (85 ± 10) bzw. (86 ± 2) kJ/mol Aktivierungsenergie, für den Hochtemperaturpeak (223 ± 12) bzw. (214 ± 2) kJ/mol.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855200111
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