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  • Inorganic Chemistry  (3,420)
  • SPACE SCIENCES
  • 2015-2019  (5)
  • 1985-1989  (3,415)
  • 1
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    [Editors' Choice] A pair of tablemates for aromatic benzene (2016)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2016-09-09
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    [Editors' Choice] Fluorine frolicking with eight friends (2017)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2017-02-10
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    [This Week in Science] Coordinated scission of N–H or O–H bonds (2016)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2016-11-11
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    [This Week in Science] A salty route to an all-nitrogen ring (2017)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2017-01-27
    Description: Author: Jake Yeston
    Keywords: Inorganic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    [Perspective] Polynitrogen chemistry enters the ring (2017)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2017-01-27
    Description: Polynitrogens have the potential for ultrahigh-performing explosives or propellants because singly or doubly bonded polynitrogens can decompose to triply bonded dinitrogen (N2) with an extraordinarily large energy release. The large energy content and relatively low activation energy toward decomposition makes the synthesis of a stable polynitrogen allotrope an extraordinary challenge. Many elements exist in different forms (allotropes)—for example, carbon can exist as graphite, diamond, buckyballs, or graphene. However, no stable neutral allotropes are known for nitrogen, and only two stable homonuclear polynitrogen ions had been isolated until now—namely, the N3− anion (1) and the N5+ cation (2). On page 374 of this issue, Zhang et al. (3) report the synthesis and characterization of the first stable salt of the cyclo-N5− anion, only the third stable homonuclear polynitrogen ion ever isolated. Author: Karl O. Christe
    Keywords: Inorganic Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Electronic Resource
    Electronic Resource
    Darstellung, Struktur und thermisches Verhalten einer neuen hexagonalen Ge-W-Bronze (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 521 (1985), S. 191-198 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation, Structure, and Thermal Behaviour of a New Ge—W BronceA hexagonal Ge-tungsten bronce with the composition Ge0.24 WO3 is obtained by chemical vapour deposition of a mixture of GeO2 and WO2(temperature gradient: 930 to 830°C).By means of an X-ray crystal structure analysis the space group was determined to be P622 and the lattice constants a = 744.0 pm, c = 381.7 pm. In absence of oxygen Ge0.24 WO3 is stable up to 850°C; in contact with air it is oxydized at temperatures T 〉 670°C. An anomaly in the thermal lattice expansion at temperatures T 〉 260°C is discussed.
    Notes: Die Darstellung einer hexagonalen Ge-Wolframbronze mit der Zusammensetzung Ge0,24 WO3 gelingt durch chemischen Transport von GeO2 und WO2 im Temperaturgefälle von 930 nach 830°C. Einer röntgenographischen Kristallstrukturanalyse zufolge kristallisiert die Verbindung n der Raumgruppe P622 mit den Gitterkonstanten a = 744,0 pm, c = 381,7 pm. Ge0,24WO3 ist unter Sauerstoffausschluß stabil bis 850°C; an der Luft wird es bei T 〉 670°C oxydiert. Eine Anomalie der thermischen Ausdehnung bei T 〉 260°C wird diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855210222
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  • 7
    Electronic Resource
    Electronic Resource
    Untersuchungen an oxidischen Katalysatoren. XLII. Redoxverhalten des Nickels in NiNa—Y-Zeolithen 4. Einfluß der Zusammensetzung auf die Reduzierbarkeit von Nickel in NiNa—Y-Zeolithen (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 521 (1985), S. 145-152 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Studies on Oxide Catalysts. XLii. Redox Behaviour of Nickel in Zeolites NiNa—Y. 4. Influence of Composition on the Reducibility of Nickel in Zeolites NiNa—YBy chemical analysis (reaction with K2Cr2O7) and ESCA investigations we determined the degree of reduction in reduced samples NiNa-Y as function of the mole ratio SiO2/Al2O3 (module), of the Ni2+ degree of exchange and the kind of the second cations. (NH4+, Ca2+, Co2+, and Nd3+) in the temperature region of 620-770 K. The degree of nickel reduction increases with increasing module, decreasing degree of exchange and decreasing number of Brönsted acidic centres. This behaviour is caused by the influence of the interaction between cations Ni2+ and zeolite lattice on the reduction equilibrium.
    Notes: Durch chemische Analyse (Reaktion mit K2Cr2O7) un ESCA-Untersuchungen wird in reduzierten NiNa—Y-Proben der Nickel-Reduktionsgrad als Funktion des SiO2/al2O3-Verhältnisses (Modul), des Nickelaustauschgrades und der Art eines Zweitkations (NH4+ +, Ca2+, Co2+, Nd3+) im Temperaturbereich von 620 - 770 K bestimmt. Der Nickel-Reduktionsgrad steigt mit wachsendem Modul, sinkendem Austauschgrad und sinkender Zahl Brönsted-acider Zentren. Die Ursache dafür wird in dem Einfluß der Ni2+-Zeolithgitter-Wechselwirkung auf das Reduktionsgleichgewicht gesehen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855210217
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  • 8
    Electronic Resource
    Electronic Resource
    Structural Characterization of trans-[Cr(NH3)4(H2O)Cl]Cl2 and trans-[Cr(NH3)4Cl2]l (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 521 (1985), S. 199-206 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Strukturuntersuchungen von Trans-[Cr(NH3)4(H2O)Cl]Cl2 un trans-[Cr(NH3)4Cl2]ITrans-[Cr(NH3)4(H2O)Cl]Cl2 (A) crystallizes in the monoclinic space group P21/m (No. 11) with a = 6.556(1), b = 10.630(5), c = 6.729(2) Å and β = 96.15(3)°. Trans-[Cr(NH3)4Cl2]I (B) ist monoklin, Raumgruppe C1/m (No. 12) mit a = 9,877(2), b = 8,497(2), c = 6,047(2)Å und β = 108,98(2)°. Beide Elementarzellen enthalten zwei Formeleinheiten. Die Abstände Cr—Cl, Cr—O(H2O) und die drei unabhängigen Abstände Cr—N(NH3) sind für A 2,298(1), 2,023(2), 2,067(2), 2,086(3) und 2,064(3)Å. Die Abstände Cr—Cl und Cr—N(NH3) sind für B 2,325(1) und 2,071(2)Å. Alle oktaedrischen Bindungswinkel weichen nicht viel von 90° oder 180° ab. Beide Strukturen wurden biz zu sehr niedrigen Gütefaktoren verfeinert.Bei der Verbindung A wurde Wasserstoffbindung zwischen dem Wassermolekül des Kations und den beiden Cl-Anionen beobachtet. Kationen und Anionen bilden das Motiv, das durch den ganzen Kristall läuft. Kationen und Anionen der zweiten Struktur sind in Schichten aufgeteilt. Die Koordinationszahl der Anionen und Kationen ist 8.
    Notes: Trans-[Cr(NH3)4(H2O)Cl]Cl2 (A) crystallizes in the monoclinic space group P21/m (No. 11) with a = 6.556(1), b = 10.630(5), c = 6.729(2) Å and β = 96.15(3)°. Trans-[Cr(NH3)4Cl2]I (B) has monoclinic C2/m (No. 12) space group and a = 9.877(2), b = 8.497(2), c = 6.047(2) Å and β = 108.98(2)°. Both unit cells contain two formula units. Cr—Cl, Cr—O(H2O) and three independent Cr—N(NH3) distances for A are 2.98(1), 2.023(2), 2.067(2), 2.086(3) and 2.064(3) °. Cr—Cl and Cr—N(NH3) bonds in B are 2.325(1) and 2.071(2) °. All octahedral angles are close to 90 and 180°. Both structures were refined to very low R values.Water molecule from trans-[Cr(NH3)4(H2O)Cl]2+ is hydrogen bonded to both ionic chlorides. Cation and two anions form the motive which repeats itself in the crystal. Cations and anions of the second structure are distributed in layers. Each cation and anion have coordination number eight.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855210223
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  • 9
    Electronic Resource
    Electronic Resource
    Organothiolatostibane und -bismutane (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 520 (1985), S. 59-64 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Organothiolatostibanes and -bismutanes.For the title compounds there are two simple methods for preparation: (a) reaction of organodiethoximetallane with thiols and (b) reaction of organodibromometallane with sodium thiolates in the ratio 1:2. Some compounds of the general formula RMe(SR′)2, whereby R=CH3, C6H5 and R′ = heterocyclic ring systems, were synthesized by (a) with Me=Sb, by (b) with Me=Bi and characterized by 1H-n.m.r., elementary analysis, and differential thermoanalysis.
    Notes: Es gibt zwei einfache Möglichkeiten zur Darstellung der Titelverbindungen: (a) Umsetzung von Organodiethoximetallan mit Thiolen und (b) Umsetzung von Organodibrommetallan mit Natriumsalzen von Thiolen im Verhältnis 1:2. Eine Reihe von Verbindungen der allgemeinen Formel RMe(SR′)2, mit Me=Bi nach (b) synthetisiert und durch 1H-NMR, Elementar-und Differentialtheromoanalysen charakterisiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855200108
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  • 10
    Electronic Resource
    Electronic Resource
    Methylbis (dithiocarbamato)stibane Synthese und Kristallstruktur (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 520 (1985), S. 65-70 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Methylbis(dithicarbamato) stibanes. Synthesis and Crystal Structure.The title compounds are obtained by reaction of methyldibromostibane with the sodium dithiocarbamates in methanol at low temperature (-78°C). The crystal structure of CH3Sb(S2CNEt2)2 as elucidated by X-ray diffraction shows no special intermolecular interactions. It can be compared to that of the corresponding bismutane CH3Bi(S2CNEt2)2 and the arsane C6H5As(S2CNEt2)2.
    Notes: Die Titelverbindungen Können durch Reaktion von Methyldibromstiban mit Natriumdithiocarbamaten bei tiefen Temperaturen (-78°C) erhalten werden. Bezüglich seiner Kristallstruktur läßt sich CH3Sb(S2CNEt2)2 gut zwischen dem entsprechenden Bismutan CH3Bi(S2CNEt2)2 und dem Arsan C6H5As(S2CNEt2)2. einordnen. Anzeichen für ungewöhnliche intermolekulare Wechselwirkungen sind bei dieser Verbindung nicht zu erkennen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855200109
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