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  • 1975-1979  (25)
  • 1970-1974  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 1751-1755 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Planar Threefold Coordination of Sulfur(VI): Crystal and Molecular Structures of (R3SiN)3S and (R3CN)3S (R=CH3) at -130°CThe crystal structures of the title compounds were determined from single crystal X-ray data (measured at -130°C) and refined to unweighted R-values of 0.034 for (R3SiN)3S (1) and 0.047 for (R3CN)3S(2). 2 crystallizes in the triclinic space group P1 and 1 in the hexagonal space group P63/m. Both structures exhibit a planar threefold nitrogen coordination of the sulfur but the large coefficients of the temperature factors perpendicular to the SN3 planes in 1 and 2 might indicate a disorder due to small deviations from planarity. The S—N bond lengths were found to be 150.4 (1) and 151.5 pm (2, mean).
    Notes: Die Strukturen der Titelverbindungen wurden aus Diffraktometer-Einkristalldaten (gemessen bei -130°C) bestimmt und zu ungewichteten R-Werten von 0.034 für (R3SiN)3S )(1) und 0.047 für (R3CN)3S (2)verfeinert. 2 kristallisiert triklin, P1. Und 1 hexagonal, P63/m. In beiden Strukturen wird eine trigonal planare Koordination des zentralen Schwefelatoms beobachtet, doch deuten die relativ großen Koeffizienten der anisotropen Temperaturfaktoren senkrecht zu den SN3-Ebenen in 1 und 2 auf eine Fehlordnung als Folge geringer Abweichungen von der Planarität in den einzelnen Molekülen hin. Die S—N-Abstände betragen 150.4 pm (1) und 151.5 pm (2, Mittelwert).
    Additional Material: 1 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3122-3128 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Crystal and Molecular Structure of 2r, 4c-Bis[bis(trimethylsilyl)amino]-2,4-bis(tert-butylimino)-1,3,2λ54λ5-dithiadiphosphetaneThe crystal structure of the title compound 1 has been determined from single crystal X-ray data (measured at -130°C) and has been refined to R = 0.042 for 3368 reflections. The compound crystallizes in the monoclinic space group C2/c. The dimeric molecules of 1 have previously been reported to be monomeric. For steric reasons the dimerisation results in the formation of a dithiadiphosphetane rather than a diazadiphosphetidine ring system. In the solid state the molecule of 1, has C2 symmetry, the exocyclic ligands adapting a cis-configuration. The fourmembered P2S2 ring is almost planar. The mean P-S bond length is 2.144 Å, ∢ S-P-S: 90.4°, ∢P-S-P: 89.2°. The P-Namine and P-Nimine bond lenghts were found to be 1.662 and 1.529 Å, respectively.
    Notes: Die Struktur der Titelverbindung 1 wurde aus bei -130°C gemessenen Diffraktometer-Einkristalldaten bestimmt und für 3368 Reflexe zu einem R-Wert von 4.2% verfeinert. Die Verbindung Kristallisiert monoklin, Raumgruppe C2/c. 1 wurde bisher. als Monomeres beschrieben, liegt im Festkörper jedoch dimer vor, wobei aus sterischen Gründen die Bildung des Dithiadiphosphetans gegenüber dem Diazadiphosphetidin bevorzugt ist. Das Molekül besitzt im Festkörper C2-Symmetrie mit cis-Stellung der exocyclischen Liganden. Im nahezu ebenen P2S2-Vierring beträgt der mittlere P-S-Abstand 2.144Å, ∢ S-P-S: 90.4, °, ∢P-S-P-P: 89.2°. P-NAmin-und P-NImin-Abstand wurden zu 1.662 bzw. 1.529 Å beobachtet.
    Additional Material: 2 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 1545-1549 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: ThiatriazadiphosphorinePentachlorothiatriazadiphosphorine 2 is formed by the reaction of bis(trimethylsilyl)sulfur diimide and phosphorus pentachloride. With SbCl5 2 yields the complex N3P2Cl4S+SbCl6-(2a). Its structure was elucidated on the basis of an X-ray analysis. 2a crystallizes in the orthorhombic space group Pnma.The cation exhibits a planar six-membered ring with a two-coordinate sulfur atom. The S—N distances were found to be 155.6 and 156.4 pm, respectively(∢ NSN 119.9°).
    Notes: Das Pentachlorthiatriazadiphosphorin 2 bildet sich bei der Reaktion von Bis (trimethylsilyl)schwefeldiimid mit Phosphorpentachlorid. Aus SbCl5 und 2 entsteht der Komplex N3P2Cl4S+SbCl6- (2a), dessen Molekülstruktur durch eine Röntgenstrukturanalyse aufgeklärt wurde. 2a kristallisiert orthorhombisch in der Raumgruppe Pnma. Für das Kation ergibt sich ein planarer Sechsring mit zweifach koordiniertem Schwefel. Die S—N-Abstände wurden zu 155.6 bzw. 156.4 pm bestimmt (∢ NSN 119.9°).
    Additional Material: 1 Ill.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 88 (1976), S. 305-306 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 88 (1976), S. 723-723 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 87 (1975), S. 284-285 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 3159-3165 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Two-Coordinated Phosphorus(III) in Phosphorus-Nitrogen Compounds: Four Crystal and Molecular StructuresThe crystal structures of the compounds 1-4 were determined from single crystal X-ray data. The P-N bond lengths in the acylic compounds were found to be 154.5 and 167.4 pm for 1 and 154.4 and 165.8 pm for 2 (angle N-P-N 108.4°, respectively). The cyclic compounds 3 and 4 exhibit equal P-N bond lengths(163.7 pm for 3 and 161.4 pm for 4) due to electron delocalization in the pπ-pπ bonding systems (angle N-P-N 97° in both compounds).
    Notes: Die Kristall- und Molekülstrukturen der Verbindungen 1-4 wurden aus Röntgendiffraktometer-Einkristalldaten bestimmt. In den acylischen Verbindungen betragen die P- N-Abstände 154.5 und 167.4 pm für 1 sowie 154.4 und 165.8 pm für 2 (Winkel N-P-N 108.4° bzw. 104.9°). Die cyclischen Verbindungen 3 und 4 enthalten jeweils gleich lange P-N-Bindungen (163.7 sowie 161.4 pm für 3 bzw. 4) als Folge delokalisierter pπ-pπ-Wechselwirkungen (Winkel N-P-N in 3 und 4 ca. 97°).
    Additional Material: 4 Tab.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 2934-2940 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Crystal and Molecular Structure of 2-Amino 2,4,4,6,6,-pentafluoro-1,3,5,2λ5, 4λ5, 6λ5- triazatriphosphorineThe crystal structure of the title compound 1 has been determined by direct methods from single crystal X-ray data and has been refined to R = 0.038 for 1465 reflections. The compound crystallizes in the monoclinic space group P21/c. The molecule forms a slightly puckered six-membered (P—N)3 ring. The endocyclic P—N bond lengths are significantly different (mean: 1.565 Å). The mean P—F bond length is 1.521 Å, the P—Namine bond length is 1.601 Å. The molecules are connected as layers through N—H⃛N hydrogen bonds.
    Notes: Die Struktur der Titelverbindung 1 wurde aus Diffraktometer-Einkristalldaten nach direkten Methoden bestimmt und für 1465 Reflexe zu einem R-Wert von 3.8% verfeinert. Die Verbindung kristallisiert monoklin in der Raumgruppe P21/c mit den Gitterkonstanten a = 7.958 Å, b = 5.222 Å, c = 19.297 Å, β = 101.24° Z = 4. Der P—N-Sechsring ist schwach gewellt. Die endocyclischen P—N-Abstände weisen signifikante Unterschiede auf (Einzelwerte: 1.551⃛1.586 Å, Mittelwert: 1.565 Å). Der Mittelwert der P—F-Bindungslängen beträgt 1.521 Å, die Länge der P—NAmin-Bindung ist 1.601 Å. Die Moleküle sind schichtartig über N—H⃛N-Wasserstoffbrücken verknüpft.
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