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  • 1985-1989  (45)
  • 1970-1974  (24)
  • Inorganic Chemistry  (65)
  • Nervus terminalis  (4)
  • 1
    Electronic Resource
    Electronic Resource
    A light- and electron-microscopic study of mesencephalic neurons projecting to the ganglion of the nervus terminalis in the goldfish (1986)
    Springer
    Cell & tissue research 246 (1986), S. 63-70 
    Details
    ISSN: 1432-0878
    Keywords: Nervus terminalis ; Mesencephalon ; HRP/cobalt technique ; Locus coeruleus ; Teleosts ; Goldfish
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary After application of various neuronal tracers (horseradish peroxidase, cobalt-chloride lysine, true blue) to the ganglion of the nervus terminalis a small number of neurons was retrogradely labeled in the mesencephalon. As revealed by combined horseradish peroxidase and catecholamine-fluorescence techniques these neurons are located in the isthmic area immediately rostral to, but not within the locus coeruleus. Cobalt-labeled axons of the mesencephalic neurons were traced individually in serial sections. Neurons projecting contralaterally cross in the horizontal commissure. Tracing of single fibers provided no evidence for axon collaterals within this pathway. Retrograde labeling reveals two different types of isthmic neurons afferent to the ganglion of the nervus terminalis: One smaller-sized type is located bilaterally and consists of four to six neurons; another type possessing many dendritic processes was consistently found as only one single cell located contralateral to the side of injection. The existence of two types of neurons was confirmed by their cytological differences: The small-sized type receives only sparse perisomatic input, while the large-sized type shows heavy somatic and dendritic, probably monoaminergic innervation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219000
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  • 2
    Electronic Resource
    Electronic Resource
    Tracing of single fibers of the nervus terminalis in the goldfish brain (1986)
    Springer
    Cell & tissue research 245 (1986), S. 143-158 
    Details
    ISSN: 1432-0878
    Keywords: Nervus terminalis ; Telencephalon ; Diencephalon ; Tracer (cobalt, HRP) studies ; Olfactory system ; Goldfish
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Central projections of the nervus terminalis (n.t.) in the goldfish were investigated using cobalt- and horseradish peroxidase-tracing techniques. Single n.t. fibers were identified after unilateral application of cobalt chloride-lysine to the rostral olfactory bulb. The central course and branching patterns of individual n.t. fibers were studied in serial sections. Eight types of n.t. fibers are differentiated according to pathways and projection patterns. Projection areas of the n.t. include the contralateral olfactory bulb, the ipsilateral periventricular preoptic nucleus, both retinae, the caudal zone of the periventricular hypothalamus bilaterally, and the rostral optic tectum bilaterally. N.t. fibers cross to contralateral targets in the anterior commissure, the optic chiasma, the horizontal commissure, the posterior commissure, and possibly the habenular commissure. We propose criteria that differentiate central n.t. fibers from those of the classical secondary olfactory projections. Branching patterns of eight n.t. fiber types are described. Mesencephalic projections of the n.t. and of secondary olfactory fibers are compared and discussed with regard to prior reports on the olfactory system of teleosts. Further fiber types for which the association with the n.t. could not be established with certainty were traced to the torus longitudinalis, the torus semicircularis, and to the superior reticular nucleus on the ipsilateral side.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00218095
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  • 3
    Electronic Resource
    Electronic Resource
    Die Tieftemperatur-Synthese von Oxidhalogeniden, YOX (X = Cl, Br, I), als Quelle der Verunreinigung von Yttriumtrihalogeniden, YX3, bei der Gewinnung nach der Ammoniumhalogenid-Methode. Die Analogie von YOCl und YSClProfessor Wilhelm Klemm † gewidmet (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 532 (1986), S. 31-36 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Low-Temperature Synthesis of Oxyhalides, YOX (X = Cl, Br, I), as the Source of Impurity in the Preparation of Trihalides, YX3, via the Ammonium Halide Route. Analogy of YOCl and YSClAmmonium halides, NH4X (X = Cl, Br, I), react with Y2O3 and Y2S3, respectively, at temperatures as low as 230=C (X = Cl), 280=C (Br), and 360=C (I) (molar ratio 12:1) to yield (NH4)3YX6, NH3, and H2O (H2S). The choice of smaller ratios than 12:1 (for example 2:1) results in the formation of oxyhalides, YOX, via the reaction of (NH4)3YX6 with surplus Y2O3. This reaction is therefore the actual source of impurity of rare-earth trihalides in their preparation via the ammonium halide routes.
    Notes: Ammoniumhalogenide, NH4X (X = Cl, Br, I), reagieren mit Y2O3 bzw. Y2S3 (im molaren Verhältnis 12:1) bereits bei Temperaturen um 230°C (X = Cl), 280°C (Br) bzw. 360°C (I) unter Bildung von (NH4)3YX6, NH3 und H2O (H2S). Wird das Verhältnis NH4X:Y2O3 kleiner als 12:1 gewählt (z. B. 2:1), so entstehen Oxidhalogenide YOX durch Reaktion von (NH4)3YX6 mit „überschüssigem“ Y2O3. Diese Reaktion ist somit die Quelle der Verunreinigungen von Selten-Erd-Halogeniden durch Oxidhalogenide bei ihrer Gewinnung nach der Ammoniumhalogenid-Methode.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865320106
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  • 4
    Electronic Resource
    Electronic Resource
    Oxidchloride unter reduzierenden Bedingungen: Einkristalle von NdOCl und GdOCl [1] (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 533 (1986), S. 181-185 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oxychlorides under Reducing Conditions: Single Crystals of NdOCl and GdOClSingle crystals of NdOCl and GdOCl are obtained in metallothermic reduction reactions of NdCl3 and GdCl3, respectively, with sodium due to ubiquitous oxidic impurities by crystallization from the melt. The crystal structures of NdOCl [a = 402.49(2), c = 678.37(5) pm] and GdOCl [a = 394.95(3), c = 667.08(7) pm], both PbFCl structure type (P4/nmm, Z = 2) were refined.
    Notes: Bei der metallothermischen Reduktion von NdCl3 bzw. GdCl3 mit Natrium werden, durch kaum vermeidbare oxydische Verunreinigungen bedingt, Einkristalle von NdOCl bzw. GdOCl durch Kristallisation aus der Schmelze erhalten. Die Kristallstrukturen (PbFCl-Typ, P4/nmm, Z = 2) wurden verfeinert. Es ist: a = 402,49(2); c = 678,37(5) pm (NdOCl) und a = 394,95(3); c = 667,08(7) pm (GdOCl).
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865330222
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  • 5
    Electronic Resource
    Electronic Resource
    Notiz zum Magnetischen Verhalten von Li3CrO4 (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 408 (1974), S. 15-20 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Notice on the Magnetic Behaviour of Li3CrO4Li3CrO4, a smaragd green powder, is due to powder photographs (Guinier-Simon-technique) isotypic with orthorhombic HT—Li3PO4, a = 6.309, b = 10.851, c = 4.952 Å, Z = 4. Between 298 and 10K the Curie-Weiss-Law is obeyed with μ=1.60 B.M. and Θ=+10 K. Below 5 K ferromagnetism is observed. ESR measurements at 4.2 K and more pronounced at 1.8 K show anisotropy of the ligand field.
    Notes: Li3CrO4, ein smaragdgrünes Pulver, ist nach Guinier-Simon-Aufnahmen isotyp mit HT-Li3PO4, a = 6,309 Å, b = 10,851 Å, c = 4,952 Å, Z = 4. Zwischen 298 und 10 K wird das Curie-Weisssche Gesetz mit μ=1,60 B.M., Θ=+10K befolgt. Unterhalb von 5 K tritt überraschend Ferromagnetismus auf. ESR-Messungen bei 4,2 K und ausgeprägter bei 1,8 K zeigen eine Anisotropie des Ligandenfeldes.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744080104
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  • 6
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von Dinitrito-kobalt(III)-Komplexen. I Darstellung und Absorptions-Spektren der Dinitrito-di(äthylendiamin)-kobalt(III)-perchlorate (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 408 (1974), S. 275-282 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Dinitrito Cobalt(III) Complexes. I. Preparation and Absorption Spectra of Di(ethylenediamine) Cobalt(III) PerchloratesCis and trans dinitrito diethylenediamine cobalt perchlorates could be prepared starting with carbonato and trans dichloro ethylenediamine cobalt perchlorate. Spectroscopic data are reported and compared with those of the corresponding dinitro complexes.
    Notes: Ausgehend von Carbonato- und trans-Dichloro-diäthylendiaminkobalt(III)-perchlorat konnten cis- und trans-Dinitrito-diäthylendiamin-kobalt(III)-perchlorate dargestellt werden. Ihre Spektren im sichtbaren Gebiet und UV werden mitgeteilt und mit den Spektren der entsprechenden Dinitrokomplexe verglichen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744080308
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  • 7
    Electronic Resource
    Electronic Resource
    Zweiwertiges Neodym: NdCl2 und KNd2Cl5 (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 528 (1985), S. 55-60 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Divalent Neodymium: NdCl2 and KNd2Cl5Single crystals of NdCl2 have been obtained via metallothermic reduction of NdCl3 with lithium: a = 908.49(5), b = 761.47(5), c = 455.62(2) pm, Pbnm, Z = 4, PbCl2 type, refined to R = 0.047. Reduction of NdCl3 with potassium yields KNd2Cl5: a = 894.51(9), b = 785.16(7), c = 1 265.28(13) pm, β = 90.000(8)°, P21/c, Z = 4, isotypic with TlPb2Cl5. There is a close structural relationship of KNd2Cl5 with K2NdCl5.
    Notes: Bei der „metallothermischen Reduktion“ von NdCl3 mit Lithium werden Einkristalle von NdCl2 erhalten: a = 908,49(5); b = 761,47(5); c = 455,62(2) pm; Pbnm, Z = 4, PbCl2-Typ, Verfeinerung bis R = 0,047. Kalium reduziert NdCl3 unter Bildung von KNd2Cl5: a = 894,51(9); b = 785,16(7); c = 1265,28(13) pm; β = 90,000(8)°, P21/c, Z = 4, isotyp mit TlPb2Cl5. Es besteht eine enge strukturelle Verwandtschaft mit K2NdCl5.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855280906
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  • 8
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von Dinitrito-kobalt(III)-Komplexen. II Kinetik der Isomerisierung und der Umsetzung von cis- und trans-Dinitrito-di(äthylendiamin)-kobalt(III)-perchloraten mit Stickstoffwasserstoffsäure (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 408 (1974), S. 283-292 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Dinitrito Cobalt(III) Complexes. II. Kinetics of Isomerisation and Reaction of Cis and Trans Dinitrito Di(ethylenediamine) Cobalt(III) Perchlorates with Hydrazoic AcidAfter a reinvestigation of the kinetic data of the nitrito-nitro isomerisation of cis and trans dinitrito-di(ethylenediamine) cobaltic perchlorate, the kinetics of the reactions between both coordination compounds and hydrazoic acid, to yield the diaquo compounds, nitrogen and dinitrogen oxide, has been studied by gasvolumetric measurements in the temperature range from 1 to 15°C. In azide buffer solutions both reactions proceed independently of pH, in two stages bimolecular with regard to the complex ion and hydrazoicacid. In both cases the first stage velocity constant is five times greater than the second constant. The cis-compounds react approximately three times faster than the trans-compounds. Possible reasons for the observed facts are discussed.
    Notes: Nach nochmaliger Ermittlung der kinetischen Daten der Nitritonitro-Isomerisierung von cis- bzw. trans-Dinitrito-di(äthylendiamin)-kobalt(III)-perchlorat wurde die Kinetik der Umsetzung der beiden Komplexverbindungen mit Stickstoffwasserstoffsäure zu den Diaquo-di(äthylendiamin)-Komplexen, Stickstoff und Distickstoffmonooxid gasvolumetrisch im Temperaturbereich von 1—15°C untersucht. In Azidpufferlösungen verlaufen die Reaktionen unabhängig vom pH in zwei Stufen bimolekular in bezug auf das jeweils vorliegende Komplexion und Stickstoffwasserstoffsäure, wobei die erste Geschwindigkeitskonstante etwa fünfmal größer ist als die zweite. Die cis-Verbindungen reagieren in beiden Stufen etwa dreimal rascher als die trans-Komplexe. Mögliche Gründe für diese Beobachtungen werden diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744080309
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  • 9
    Electronic Resource
    Electronic Resource
    Chlorotitanate(II): RbTiCl3 und CsTiCl3 (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 524 (1985), S. 90-94 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chlorotitanates (II): RbTiCl3 and CsTiCl3RbTiCl3 and CsTiCl3 are obtained as shiny black single crystals by synproportionation of appropriate amounts of RbCl (CsCl), Ti and TiCl3 in sealed tantalum containers (700°C, 3 d, cooled down with 2 deg/h). The structure determination from single crystal data confirms the assumed isotypism with CsNiCl3 (hexagonal, P63/mmc, Z = 2; RbTiCl3: a = 711.73(4), c = 599.96(11) pm; CsTiCl3: a = 730.18(11), c = 605.3(3) pm).
    Notes: RbTiCl3 und CsTiCl3 erhält man in Form glänzend schwarzer Einkristalle bei der Synproportionierung entsprechender Gemenge von RbCl (CsCl), Ti und TiCl3 in verschweißten Tantalampullen (700°C, 3 d, dann Abkühlen mit 2°/h). Die Strukturbestimmung an Einkristallen belegt die Isotypie mit CsNiCl3 (hexagonal, P63/mmc, Z = 2; RbTiCl3: a = 711.73(4); c = 599,96(11) pm; CsTiCl3: a = 730,18(11); c = 605.3(3) pm).
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855240512
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  • 10
    Electronic Resource
    Electronic Resource
    Ternäre Halogenide der Seltenen Erden vom Typ A2MX5 (A = K, In, NH4, Rb, Cs; X = Cl, Br, I) (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 521 (1985), S. 161-172 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ternary Rare-Earth Halides of the A2MX5 Type (A = K, In, NH4, Rb, Cs; X = Cl, Br, I)Ternary rare-earth (=M) chlorides, bromides, and iodides In2MCl5, (NH4)2MCl5, Rb2MCl5, Cs2MCl5, CsRbMCl5, K2MBr5, Rb2MBr5, K2MI5, and Rb2MI5 have been synthesized. Single crystals of In2PrCl5, Rb2PrCl5, K2PrBr5, and K2PrI5 were grown and the structures refined. The other halides were characterized by x-ray powder patterns. They are isotypic either with K2PrCl5(orthorhombic, Pnma, Z = 4, hexagonal arrangement of chains of edge-connected polyhedra [PrX7]) or with Cs2DyCl5 (orthorhombic, Pbnm, Z = 4, hexagonal arrangement of cis-corner-connected octahedra [DyCl6]) which may be discriminated in structure field diagrams. The thermal expansion was investigated für Cs2LuCl5 and Rb2PrX5 (X = Cl, Br, I).
    Notes: Die Halogenide sind entweder mit K2PrCl5 (orthorhombisch, Pnma, Z = 4, hexagonal gebündelte Ketten kantenverknüpfter Polyeder [PrCl7]) order mit Cs2DyCl5 (orthorhombisch, Pbnm, Z = 4, hexagonal gebündelte Ketten cis-eckenverknüpfter Oktaeder [DyCl6]) isotyp, sie können in Strukturfeld-Diagrammen voneinander abgegrenzt werden. Die Thermische Ausdehnung wird für Cs2SLuCl5 und Rb2PrX5 (X = Cl, Br, I) röntgenographisch verfolgt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855210219
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