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  • Inorganic Chemistry  (73)
  • Aerodynamics
  • GENERAL
  • Wiley-Blackwell  (73)
  • 1995-1999  (41)
  • 1955-1959  (25)
  • 1945-1949  (7)
  • 1
    Electronic Resource
    Electronic Resource
    Über Benzal-Derivate des L-Idits (1959)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 92 (1959), S. 2694-2700 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die von E. Fischer und G. Bertrand beschriebenen Tribenzal-L-idite erwiesen sich als identisch mit 1.3;2.4;5.6-Tribenzal-L-idit. Unter wenig abgeänderten Versuchsbedingungen entsteht neben dem Tribenzal-L-idit ein Dibenzal-Derivat, welches einen 2.3.4.5-, wahrscheinlich 2.4;3.5-Dibenzal-L-idit darstellt. Es wird auf den unterschiedlichen Verlauf der Acetalisierung des L-Idits mit Benzaldehyd, bzw. Formaldehyd hingewiesen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19590921103
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  • 2
    Electronic Resource
    Electronic Resource
    Hydrogen Bonding and Conformational Analysis of Chelate-Stabilized Alkoxopalladium(II) Complexes Derived from Amino Alcohol Ligands (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 35-44 
    Details
    ISSN: 0009-2940
    Keywords: Alkoxopalladium(II) ; Conformational analysis ; Hydrogen bonding ; Two-dimensional and cage structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The reaction of palladium acetate with two equivalents of di- and triethanolamines RN(CH2CH2OH)2 in the presence of a base affords the new chelate-stabilized alkoxo Pd(II) complexes [Pd(OCH2CH2N(R)CH2CH2OH)2] [R = Me (1), Et (2), n-Bu (3), benzyl (4) or CH2CH2OH (5)]. These N,O-ligated complexes are isolated in high yield as yellow, crystalline solids and are thermally stable despite the presence of several β-hydrogen atoms in the ligand system. Both complexes possess a square-planar palladium coordination geometry with the two oxygen atoms positioned mutually trans. The most notable difference in the molecular structures is that 1 forms a two dimensional network of intermolecular O-H≡O hydrogen bonds, whereas 5 forms intramolecular O-H⃛O hydrogen bonds, which cage the palladium center. In solution 1-4 exist as a diastereoisomeric mixture (a racemic enantiomeric pair SNSN, RNRN and a mesomeric form RNSN) in a 1:1 molar ratio, and this ratio is independent of temperature in nonalcoholic solvents, When complexes 1-4 are dissolved in protic solvents (e.g. MeOH) the diastereomeric excess is temperature-dependent due to an exchange process between the meso diastereoisomer and the (racemic) enantiomeric pair. Thermodynamic parameters for this process in a mixture of MeOH-toluene have been determined with NMR and show this process to be influenced by the steric nature of the alkyl substituent (R) on nitrogen. A conformational analysis based on 1H-NMR coupling constants within the N,O-chelate ring of complexes 1-4 provides details on the solution structure of the ring in both diastereoisomers.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300106
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  • 3
    Electronic Resource
    Electronic Resource
    Perfluorovinyl Morpholine and Perfluorovinyl Pyrrolidine with Nucleophiles and ElectrophilesDedicated to Professor Herbert W. Roesky on the Occasion of his 60th Birthday (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 1865-1874 
    Details
    ISSN: 0044-2313
    Keywords: Perfluorovinyl amine ; X-ray crystal structure ; nucleophile ; electrophile ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaktion von Perfluorvinyl-Morpholin und Perfluorvinyl-Pyrrolidin mit Nukleophilen und ElektrophilenEs wird die Umsetzung von monofunktionellen und bifunktionellen Nukleophilen sowie des Elektrophils FNO mit Perfluorvinylaminen mitgeteilt. Die Perfluorvinylamine CF=CF2 und CF=CF2 wurden mit Dimethylamin und Diethylamin in Gegenwart kleiner Mengen Wasser umgesetzt zu CHFC(O)N(CH3)2 (1), CHFC(O)N(CH3)2 (2), bzw. CHFC(O)N(C2H5)2 (3). Mit Perfluorvinylpyrrolidin und Perfluorvinylmorpholin ergibt Ethanolamin die cyclischen Produkte CHF (4) bzw. CHF (5). Die Reaktion der Vinylamine mit (CH3)3SiOCH2CF3 in Gegenwart katalytischer Mengen von CsF ergibt cis- (6) und trans- (7) CF=CF(OCH2CF3) sowie cis- (8) und trans-(9) CF=CF(OCH2=CF3). Das elektrophile FNO reagiert langsam mit Perfluorvinylpyrrolidin und Perfluorvinylmorpholin und schneller mit (CH3)3CCF=CF2 zu CF(NO)CF3 (10), CF(NO)CF3 (11) bzw. (CF3)CF(NO)CF3 (12). Die Einkristall-Röntgen-Analyse wird zur Klärung der Produkte der kontrollierten Hydrolyse der Sultone von Perfluorvinylpyrrolidin wie des Sulfonsäureanhydrids C(O)CF2OS(O)2OCF2C(O) (13) eingesetzt. Die Röntgenstruktur von Perfluorbernsteinsäure · Monohydrat (14), die durch Hydrolyse von Perfluorvinylpyrrolidin mit einem Überschuß an Wasser erhalten wurde, wird erstmals mitgeteilt.
    Notes: In this study, both monofunctional and bifunctional nucleophiles, as well as the electrophile FNO, are reacted with perfluorovinyl amines. The perfluorovinyl amines CF=CF2 and CF=CF2 have been reacted with dimethylamine and diethylamine in the presence of small amounts of water to give CHFC(O)N(CH3)2 (1), CHFC(O)N(CH3)2 (2), and CHFC(O)N(C2H5)2 (3). With perfluorovinyl pyrrolidine and perfluorovinyl morpholine, ethanolamine gives the cyclized products CHF (4) and CHF (5), respectively. Reaction of the vinyl amines with (CH3)3SiOCH2CF3 in the presence of catalytic amounts of CsF results in the formation of cis- (6) and trans- (7) CF=CF(OCH2CF3) and cis- (8) and trans- (9) CF=CF(OCH2CF3). The electrophile FNO reacts slowly with perfluorovinyl pyrrolidine and perfluorovinyl morpholine, and more rapidly with (CF3)3CCF=CF2 to give CF(NO)CF3 (10), CF(NO)CF3 (11) and (CF3)3CF(NO)CF3 (12), respectively. Single crystal X-ray analysis is used to confirm the identity of the product obtained from the controlled hydrolysis of the sultone of perfluorovinyl pyrrolidine as the sulfonic acid anhydride C(O)CF2OS(O)2OCF2C(O) (13). The X-ray crystal structure of perfluorosuccinic acid monohydrate (14), which is obtained when the perfluorovinyl pyrrolidine sultone is hydrolyzed in excess water, is also reported for the first time.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956211108
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  • 4
    Electronic Resource
    Electronic Resource
    Thermally Stable Self-assembling Open-Frameworks: Isostructural Cs+ and (CH3)4N+ Iron Germanium Sulfides (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 283-287 
    Details
    ISSN: 0009-2940
    Keywords: Self-assembling frameworks ; Thermal stability ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Here we report on investigations that have revealed for the first time that the Cs+ ion templates the same metal germanium sulfide open-framework as (CH3)4N+ (TMA+), and that metal complexing agents enhance crystal size by at least two orders of magnitude. The synthesis, structures and thermal properties of Cs2FeGe4S10 ·× H2O and TMA2FeGe4S10 are also described. Both have 3D zinc blende-type open-framework structures. These materials have the same connectivity as TMA2MnGe4S10. The tetrahedral sites in the lattice are alternately substituted by pseudo-tetrahedral Fe2+ and adamantanoid Ge4S104- building blocks, covalently linked together by Fe(μ-S)Ge bridge bonds, to give a tetragonal unit cell. The charge-balance of the anionic framework [Fe-Ge4S10]2- is maintained by either Cs+ or TMA+ ions in the cavity spaces. Synthesis of these materials demonstrates an interesting example of a self-assembly process in which a 3D framework is built from molecular precursors. Water adsorption-desorption cycling from room temperature to 200 °C reveals framework flexibility between larger and smaller tetragonal unit cell 14 isotypes. The compound TMA2FeGe4S10 is stable in nitrogen at 350 °C and under vacuum at 450 °C. The corresponding temperatures for Cs2FeGe4S10 are 530 °C and 630°C; it is stable on cooling to room temperature under vacuum, and after subsequent exposure to air. Six hundred thirty degrees celsius is the highest recorded temperature at which the integrity of a non-oxide framework has been maintained. The framework stability and flexibility of “all-inorganic” Cs2FeGe4S10 provides an encouraging example for researchers interested in developing sulfide-based framework materials with practical applications.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290307
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesis and Characterization of β-Phosphaenones An Investigation on the Conjugative Properties of the P=C Bond (1995)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 465-476 
    Details
    ISSN: 0009-2940
    Keywords: Phosphaalkenes, C-halo, C-metal ; Phosphaacrylic acid ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Thermally and air-stable β-phosphaenones were synthesized by functionalization of Mes*P=CCl2 (1; Mes* = supermesityl = 2,4,6-tri-tert-butylphenyl). At low temperature, 1 was lithiated by halogen-metal exchange with n-butyllithium to give the phosphanylidene carbenoid (Z)-Mes*P=C(Cl)Li [(Z)-2] which reacted with acid chlorides to furnish the C-carbonyl-substituted phosphaalkenes (Z)-Mes*P=C(Cl)R (3: P = COtBu; 4: R = COPh; 5: R = COOEt). The reaction of (Z)-2 with carbon dioxide furnished the carboxylate 6, which was converted by treatment with pivaloyl chloride or trimethylsilyl chloride into the phosphaalkenes 7 and 8 functionalized at the carbon atom by an anhydride or a trimethylsilyl ester function, respectively. Acidification of 6 or hydrolysis of 8 with water in chloroform solution afforded the novel carboxylic acid (Z)-Mes*P=C(Cl)COOH (9). Spectroscopic investigations (NMR, UV, IR) of 3-9 and the X-ray structures of 3 and 4 are presented. Based on these properties and on theoretical calculations, the occurrence of conjugation in the β-phosphaenone system is discussed and compared with the well-known conjugation in normal enones.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19951280506
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  • 6
    Electronic Resource
    Electronic Resource
    A Synthetic and Theoretical Study of the Aggregation of Amidoaluminium Hydrides: Solid-State Structure of the Trimethylamine Adduct [(Me3Si)2NA1(Cl)(H) · NMe3] (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 545-549 
    Details
    ISSN: 0009-2940
    Keywords: Alane ; Association ; Hydride ; Amido ; Amide ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The amidoaluminium hydride complexes [(Me3Si)2NA1(X)(H) · NMe3], X = H (1), Cl (2), were prepared by the metallation of bis(trimethylsilyl)amine by Al(X)(H)2 · NMe3 (X = H and Cl). The molecular structure of 2 as a monomeric Lewis base adduct with four-coordinate aluminium centres and terminal amido groups was confirmed by X-ray crystal structure determination. We also find that bis(trimethylsilyl)amine forms a thermally stable adduct of alane, (Me3Si)2N(H) · AlH3 (3). Ab initio molecular orbital calculations on the possible products arising from these reactions yielding 1 and 2 revealed that the amido-bridged species, {(μ-H2N)Al(X)H}2 (X = H and Cl), are favoured over nitrogen donor Lewis base adduct formation, H2NAl(X)(H) · NH3 (X = H and Cl), and then chloro-bridged, {H2NAl(μ-X)(H)}2, (X = Cl only), and hydrido-bridged species, {H2NAl(X)(μ-H)}2 (X = H and Cl).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290511
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  • 7
    Electronic Resource
    Electronic Resource
    Darstellung und Charakterisierung der Tetrahedrane [CpM(CO)2]3P (M = Mo, W) sowie der Derivate [CpMo(CO)2]3P-Mo(CO)5 und [CpW(CO)2]3P-W(CO)5 (1995)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 197-199 
    Details
    ISSN: 0009-2940
    Keywords: μ3-Phosphorus-trimolybdenum tetrahedrane ; μ3-Phosphorus-tritungsten tetrahedrane ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis and Characterization of the Tetrahedranes [CpM(CO)2]3P (M = Mo, W) and Their Derivatives [CpMo(CO)2]3P-Mo(CO)5 and [CpW(CO)2]3P-W(CO)5The reaction of Na[CpM(CO)3] (M = Mo, W) with PCl3 in diglyme yields the cluster compounds [CpMo(CO)2]3P-Mo(CO)5 (2a) and [CpW(CO)2]3P-W(CO)5 (2b) in good yields as well as the tetrahedranes [CpMo(CO)2]3P (3a) and [CpW(CO)2]3P (3b) as side products. Compounds 3a, b are obtained independently by the reaction of 2a, b with PPh3. The clusters 2a, b and 3a, b were characterized spectroscopically (IR, NMR, MS), and X-ray structure determinations were carried out on 2a, b.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19951280219
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  • 8
    Electronic Resource
    Electronic Resource
    The Catalytic Ring-opening Cyclooligomerization (ROC) of Thietane by the Complexes M(CO)5L (M = Cr and W; L = CO, thietane and 1,5,9-Trithiacyclododecane) (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 313-318 
    Details
    ISSN: 0009-2940
    Keywords: Thietane ; Catalysis ; Tungsten ; Macrocycle ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The following four compounds have been synthesized: M(CO)5L (3 and 4, where M = Cr and W, and L = H2), W(CO)5(12S3) (5, where 12S3 = 1,5,9-trithia-cyclododecane), and [W(CO)5]2(12S3) (6). The molecular structures of 4 and 5 were established by single-crystal X-ray diffraction analyses. Both compounds contain a W(CO)5 group coordinated to one of the sulfur atoms of the hetero-cycle. The ability of the compounds M(CO)6, 1 and 2 (M = Cr and W), and 3 - 5 to catalytically produce ring opening cyclooligomerization (ROC) of thietane into 12S3 and 24S6, (24S6 = 1,5,9,13,17,21-hexathiacyclotetracosane) has been investigated. Compounds 1 - 3 have relatively low activity. Compounds 4 and 5 have the highest activity and selectivity for 12S3 formation. Crystal Data for 4: space group = P212121, a = 12.906(2) Å, b = 13.730(4) Å, c = 6.427(1) Å, Z = 4, 1306 reflections, R = 0.033; for 5: space group = P1¯, a = 12.703(1) Å, b = 13.510(2) Å, c = 5.833(1) Å, α = 101.75(1)°, β = 97.54(1)°, γ = 101.70(1)°, Z = 2, 2225 reflections, R = 0.023.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290311
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  • 9
    Electronic Resource
    Electronic Resource
    Chemistry in Environmentally Benign Media, 8Part 7: Ref. Hydroxymethyl Functionalized Phosphanes as Building Blocks to new Water-Soluble Gold(I) Complexes - synthesis, Characterization, and X-ray crystal Structures of Novel Tetrahedral [Au{P(CH2OH)3}4]+ and Trigonal Planar [Au(Ph2PCH2OH)3]+ Gold (I) Complexes (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 907-911 
    Details
    ISSN: 0009-2940
    Keywords: Hydroxymethyl phosphanes ; Gold ; Trigonal gold(I) complexes ; Tetrahedral gold(I) complexes ; P ligands ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The reactions of water-soluble phosphanes P(CH2OH)3 (1) and Ph2PCH2OH (2) with NaAuCl4 in aqueous or alcoholic media, produced the water/alcoholic-soluble AuI complexes [Au(Ph(CH2OH)3)4]+ (3) and [Au(Ph2PCH2OH)3+ (4) in near quantitative yields. The X-ray structures of 3 and 4, reported in this paper, confirm the structures of these new generation of water-soluble transition metal complexes. All compounds were characterized by 1H-, 13C-, 31P-NMR spectroscopy and mass spectrometry. The structures of 3 and 4 were determined by X-ray crystallography.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300716
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  • 10
    Electronic Resource
    Electronic Resource
    Die tri-homologe Reihe der Trialkyl-methanole (XIII. Mitteil.1) über isomere und homologe Reihen)Herrn Prof. Fritz Arndt, Universität Istanbul, zu seinem 70. Geburtstag gewidmet (1955)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 88 (1955), S. 913-917 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die tri-homologe Reihe der Trialkyl-methanole wurde bis zum Trioctadecyl-methanol teils durch Anlagerung von Alkyl-magnesiumjodiden an Dialkyl-ketone, teils durch Kondensation von Alkyl-magnesiumjodiden mit den entsprechenden Fettsäureestern dargestellt. Die Schmelzpunktsreihen der Trialkyl-methanole werden mit denen der Dialkyl-und der Monoalkyl-methanole verglichen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19550880702
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