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  • Inorganic Chemistry  (13)
  • Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Röntgenstrukturanalyse des 1,3-Bis(diethylamino)-1,3-dibenzyl-2,4-diphenyl-1λ5, 3λ5-diphosphets (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 609 (1992), S. 99-102 
    Details
    ISSN: 0044-2313
    Keywords: Diphosphete ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: X-Ray Crystal Structure Determination of 1,3-Bis(diethylamino)-1,3-dibenzyl-2,4-diphenyl-1λ5, 3λ5-diphospheteBenzylidene-diethylamino-benzylfuorophosphorane, 1, reacts with lithium bis(trimethylsilyl)amide to give the title compounds 2 and 1-diethylamino-2,3-diphenylphosphirane, 3. Only one of the stereoisomers of 2 is formed in which the two benzyl groups are located on the same side of the planar four-membered ring. 2 crystallizes in the monoclinic space group P21/n.
    Notes: Benzyliden-diethylamino-benzylfuorphosphoran, 1, reagiert mit Lithium-bis(trimethylsilyl)-amid zur Titelverbindung 2 und 1-Diethylamino-2,3-diphenylphosphiran, 3. Von 2 wird nur das Stereoisomer gebildet, bei dem die beiden Benzylgruppen auf der gleichen Seite des ebenen viergliedrigen Rings angeordnet sind. 2 kristallisiert in der monoklinen Raumgruppe P21/n.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926090319
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  • 2
    Electronic Resource
    Electronic Resource
    Cyclische Verbindungen aus Phosphor, Kohlenstoff und Schwefel (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 584 (1990), S. 159-164 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cyclic Compounds Made of Phosphorus, Carbon, and SulfurBy reaction of P4S10 with excess tri-n-dodecylamine and tribenzylamine bis(didodecylammonium)-3,6-diundecyl-2,5-dithioxo-1,4,2λ5,5λ5-dithiaphosphorinan-2,5-disulfide (IId) and bis(tribenzylammonium)-3,6-diphenyl-2,5-dithioxo-1,4,2λ5,5λ5-dithiaphosphorinan-2,5-disulfide (IIe), respectively, are formed. Reactions of the ammonium-3,6-dialkyl-2,5-dithioxo-1,4,2λ5,5λ5-dithiaphosphorinan-2,5-disulfides with aqueous alkali solutions and CH3I as well as their therolysis are described.
    Notes: Bei der Umsetzung von P4S10 mit überschüssigem Tri-n-dodecylamin und Tribenzylamin entstehen Bis(didodecylammonium)-3,6-diundecyl-2,5-dithioxo-1,4,2λ5,5λ5-dithiadiphosphorinan-2,5-disulfid (IId) bzw. Bis(tribenzylammonium)-3,6-diphenyl-2,5-dithioxo-1,4,2λ5,5λ5-dithiadiphosphorinan-2,5-disulfid (IIe). Reaktionen der Ammonium-3,6-dialkyl-2,5-dithioxo-1,4,2λ5,5λ5-dithiadiphosphorinan-2,5-disulfide mit wäßrigen Alkalilösungen und CH3I sowie ihre Thermolyse sind beschrieben.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905840116
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  • 3
    Electronic Resource
    Electronic Resource
    Fluor-substituierte und andere neue Carbodiphosphorane (1988)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 567 (1988), S. 23-38 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluoro Substituted and other New CarbodiphosphoranesSyntheses and properties of the carbodiphosphoranes [(CH3)2N]3P=C=P(CH3)[N(CH3) 2]2, (3), [(CH3)2N]2(F)P=C=P(F) [N(CH3)2]2, (7), and (C6H5)2(F)P=C=P(F)(C6H5) 2, (11), are discribed. The compounds 3, 7, and 11 as well as [(C2H5)2N]3P=C=P(CH3) [(C2H5)2N]2 are characterized by their 1H, 13C, 19F, and 31P n.m.r. and mass spectra. The crystal and molecular structures of 7 are reported.
    Notes: Synthese und Eigenschaften der Carbodiphosphorane [(CH3)2N]3P=C=P(CH3)[N(CH3)2]2, (3), [(CH3)2N]2(F)P=C=P(F)[N(CH3)2]2, (7), und (C6H5)2(F)P=C=P(F)(C6H5) 2, (11), werden beschrieben. Die Verbindungen 3, 7 und 11 sowie [(C2H5)2N]3P=C= P(CH3)[(C2H5)2N]2 sind durch ihre 1H-, 13C-, 19F- und 31P-NMR-Spektren sowie durch ihre Massenspektren charakterisiert. Die Kristall- und Molekülstruktur von 7 werden mitgeteilt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19885670104
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  • 4
    Electronic Resource
    Electronic Resource
    Die KristallStruktur von Li8SnO6 (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 433 (1977), S. 181-188 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of Li8SnO6Colourless single crystals of Li8SnO6 have been obtained from mixtures of Li2O + SnO2 [Li:Sn = 8.8:1 to 30:1; Ni cylinders; 1 000°C; 6 weeks]. Li8SnO6 crystallizes trigonalrhombohedral R3—C3i2 with a = 5.461, c = 15.278 Å, Z = 3, Sn in (3a), Li| in 18(f), Li‖ in 6(c) and O in 18(f). The parameters given in text lead to R = 3.37%, R′ = 3.74% (197 0kl-3kl, MoKα, diffractometer data).The Madelung Part of Lattice Energy, MAPLE, and the Effective Coordination Numbers, ECoN, have been calculated and are discussed in detail; the tendency of interlamellar twinning perpendicular to (001) is explained.
    Notes: Erstmals erhalten wurden farblose Einkristalle von Li8SnO6 [Gemenge von Li2O/SnO2; Li: Sn 8,8:1 bis 30:1; Ni-Bömbchen; 1 000°C; 6 Wochen].Li8SnO6 kristallisiert trigonal-rhomboedrisch R3—C3i2 mit a = 5,461, c = 15,278 Å, Z = 3, Sn in 3(a), Li| in 18(f), Li‖ in 6(c) und O in 18(f) (Parameter s. Text). Es ist R = 3,37%, R′ = 3,74% (197 0kl-3kl, MoKα, Diffraktometerdaten).Der Madelunganteil der Gitterenergie MAPLE und die Effektiven Koordinationszahlen ECoN werden berechnet und diskutiert, die Tendenz zur interlamellaren Verzwilligung nach (001) erklärt.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774330119
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  • 5
    Electronic Resource
    Electronic Resource
    Über Oxostannate(II). III. K2Sn2O3, Rb2Sn2O3 und Cs2Sn2O3 - ein Vergleich (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 485 (1982), S. 15-22 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Oxostannates(II). III. K2Sn203, Rb2Sn203, and Cs2Sn2O3 - a ComparisonHitherto unknown Rb2Sn2O3 has been obtained by heating of mixtures of binary oxides [RbO0.48 + SnO, Rb:Sn = 1.1:1, Al2O3-cylinders, Ar] as deep yellow powder or deep yellow single crystals. It is isotypic to K2Sn2O3, R3m-D3d5 with a = 6.086 Å, c = 15.101 Å, Z = 3, dcalc = 4.69, dobs = 4.64 g X cm-3. For 260 hkl it is R = 5.27% and Rw = 5.09% (MoKα, 4-circle diffractometer data). The structure of K2Sn2O3 and Rb2Sn2O3 is compared with that of Cs2Sn2O3. For both types Effektive Coordination Numbers, ECoN, and the Madelung Part of Lattice Energy, MAPLE, have been calculated.
    Notes: Neu dargestellt wurde Rb2Sn2O3 durch Tempern entsprechender Gemenge binärer Oxide [RbO0,48 + SnO, Rb:Sn = 1,1:1; Al2O3-Bömbchen, Ar] als tiefgelbes Pulver bzw. tiefgelbe Einkristalle. Es ist isotyp mit K2Sn2O3, R3m-D3d5 mit a = 6,086 Å, c = 15,101 Å, Z = 3, drö = 4,69 und dpyk = 4,64 g · cm-3. Für 260 hkl ist R = 5,27% und Rw = 5,09% (MoKα, Vierkreisdiffraktometerdaten). Die Struktur von K2Sn2O3 und Rb2Sn2O3 wird mit der von Cs2Sn2O3 verglichen. Für beide Strukturtypen werden Effektive Koordinationszahlen, ECoN, und der Madelunganteil der Gitterenergie, MAPLE, berechnet und diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824850103
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  • 6
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von Li16Nb4O18 [1]Professor Albrecht Rabenau zum 60. Geburtstage am 17. November 1982 gewidmet (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 493 (1982), S. 7-16 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Knowledge of Li16Nb4O18Hitherto unknown Li16Nb4O18 has been obtained by heating of mixtures of binary oxides (Li2O + Nb2O5, Li:Nb = 7:1, Ni cylinders, Ar, 1100°C, 40 d) as colourless single crystals. It crystallizes triclinic in P1—Ci1 with a = 1 521.0, b = 881.5, c = 585.8 pm, α = 109.8°, β = 101.4°, γ = 87.0°, Z = 2, R = 5.67 and Rw = 5.93% for 1 602 I0 (h k l) (MoKα, 4-circle-diffractometer data). According to Li16Nb4O18□2 it is a derivative of a NaCl-type lattice with vacancies in the anion-sublattice and ordered distribution of the cations. Effective Coordination Numbers, ECoN, these via Mean Fictive Ionic Radii, MEFIR, and the Madelung Part of Lattice Energy, MAPLE, have been calculated.
    Notes: Erstmals erhalten wurde Li16Nb4O18 durch Tempern von Gemengen binärer Oxide (Li2O + Nb2O5, Li:Nb = 7:1, Ni-Bömbchen, Ar, 1100°C, 40 d) in Form farbloser Einkristalle. Es kristallisiert triklin in P1—Ci1 mit a = 1 521,0; b = 881,5; c = 585,8 pm; α = 109,8°; β = 101,4° γ = 87,0°; Z = 2. Für 1 602 I0 (h kl) ist R = 5,67, Rw = 5,93% (MoKα, Vierkreisdiffraktometerdaten). Gemäß Li16Nb4O18□2 liegt eine NaCl-Variante mit Lücken im Anionenteil und geordneter Verteilung der Kationen vor. Effektive Koordinationszahlen, ECoN, diese über Mittlere Fiktive Ionenradien, MEFIR, und der Madelunganteil der Gitterenergie, MAPLE, wurden berechnet.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824930102
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  • 7
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Silicium-Stickstoff-Verbindungen. XCI. Dekamethylcyclotetrasilazan (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 381 (1971), S. 168-175 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Decamethylcyclotetrasilazane (I) was prepared starting with 1,3-dichloropentamethyldisilazane (II), 1.3-dichlorotetramethyldisilazane (III) and 1,3-bis-(methylamino)tetramethyldisilazane (IV). respectively, according to scheme 1, equ. (1), (2) and (3) in the text. (I) does not form, as given in the literature (equ. 4)5, by thermal transformation of bis(methylaminodimethylsilyl)-tetramethylcyclodisilazane (V); in this case exclusively - in equ. (2) and (3) only in side steps - the reaction products are a mixture of N-methylcyclotrisilazanes (scheme 2, VI-IX).
    Notes: Dekamethylcyclotetrasilazan (I) läßt sich aus 1,3-Dichlorpentamethyldisilazan (II), 1,3-Dichlortetramethyldisilazan (III) wie auch aus 1,3-Bis(methylamino)-tetramethyldisilazan (IV) gemäß Schema 1, Rkk. (1) bis (3), nicht jedoch durch die in der Literatur5 beschriebene thermische Umlagerung von Bis(methylaminodimethylsilyl)-tetramethylcyclodisilazan (V) (vgl. Rk. 4) darstellen. Hierbei entsteht ausschließlich, - in den Rkk. (2) und (3) nur auf Nebenwegen -, ein Gemisch von N-Methylcyclotrisilazanen (Schema 2, VI-IX).
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19713810206
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  • 8
    Electronic Resource
    Electronic Resource
    Über Oxostannate(II). I. Zur Kenntnis von K2Sn2O3Professor Paul Hagenmuller zum 60. Geburtstage am 3. August 1981 gewidmet (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 478 (1981), S. 7-12 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Oxostannates(II). I. Information on K2Sn2O3Hitherto unknown K2Sn2O3 was obtained by heating mixtures of binary Oxides [KO0.48 + SnO, K:Sn = 1.1:1] under Argon [Al2O3 cylinders, 550°C, 24 h or 7 d] as yellow powder or brownish-yellow single crystals, respectively. It crystallizes trigonal-rhombohedral in R3m - D3d5, with a = 6.001 Å, c = 14.327 Å, Z = 3, drö = 4.05 and dpyk = 3.98 gcm-3, positions are given in text, R = 2.11% for 219 hkl (MoKα, 4-circle diffractometer data).
    Notes: Neu dargestellt wurde K2Sn2O3 durch Tempern entsprechender Gemenge binärer Oxide [KO0,48 + SnO; K: Sn = 1,1:1] unter Argon, Al2O3-Bömchen, 550°C, 24 h (gelbes Pulver) bzw. 7 d (bräunlichgelbe Einkristalle). Es kristallisiert trigonal-rhomboedrisch in R3m - D3d5, mit a = 6.001 Å, c = 14.327 Å, Z = 3, drö = 4.05 und dpyk = 3.98 gcm-3, Positionen siehe Text. Es ist R = 2,11% für 219 hkl (MoKα, Vierkreisdiffraktometerdaten).
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814780702
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  • 9
    Electronic Resource
    Electronic Resource
    Über Perowskitphasen im System BaO—UO2+x mit x〈1Professor Eugen Müller zum 70. Geburtstage am 21. Juni 1975 gewidmet (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 415 (1975), S. 133-155 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Perovskite Phases in the System BaO—UO2+x with x 〈 1The phase relations in the BaO—UO2+x system are investigated by x-ray and spectroscopic methods. The higher boundary of the perovskite phase is situated near Ba:U = 3:1. The phase rage depends on the Ba:U ratio as well as on the uranium valency. The composition BaUO3 is not enclosed. The stability of the phase is heavily influenced by the possibility of charge delocalisation. The properties of a new ternary oxide, 1.47 BaO · UO2.525, are reported as well.
    Notes: Die Untersuchung der Phasenverhältnisse im System BaO—UO2+x mit röntgenographischen und spektroskopischen Methoden zeigt, daß die obere Grenze der Perowskitphase bei Ba: U = 3:1 liegt. Ihr Existenzbereich ist außer vom Ba: U-Verhältnis von der Wertigkeit des Urans abhängig. Die Zusammensetzung BaUO3 wird nicht erreicht. Ausschlaggebend für die Stabilität der Perowskitphase ist die Möglichkeit zur Ladungsdelokalisation.Über die Eigenschaften eines neuen ternären Oxids, 1,47 BaO · UO2,525, wird ebenfalls berichtet.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19754150207
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  • 10
    Electronic Resource
    Electronic Resource
    Berichtigung (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 437 (1977), S. 304-304 
    Details
    ISSN: 0044-2313
    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.19774370145
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