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  • 1
    ISSN: 1520-6041
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The crystal structure of the title compound, C5H7N2+·C12H10NO4S2−, consists of two independent cation–anion pairs, A and B. Within each pair, the H—N—C—N*—H grouping (N*—H is the pyridinium function) and one N—S—O moiety of the anion are linked by N*—H...N and N—H...O hydrogen bonds to form an antidromic ring motif of type R22(8). The remaining amino donors give rise to N—H...O hydrogen bonds, connecting the ion pairs into A–B–A–B– chains. The structure testifies to the persistence of the R22(8) motif in question, which was previously detected as a highly robust supramolecular synthon in a series of onium di(methanesulfonyl)amidates. The structure is pseudosymmetric; the anion positions correspond to space group P21/n, but those of the cations do not.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The prominent features in the molecular structure of the title compound (alternative name: 2-diethylcarbamoyl-1,1,3,3-tetraoxo-1,3,2-benzodithiazole), C11H14N2O5S2, arise in the urea moiety S2N—C(O)—N′C2: the sum of the angles at N is 332.3 (1)°, the N—C(O)—N′C2 unit is planar, and distances N—C(O) = 1.494 (3) Å, N′—C(O) = 1.325 (2) Å and C—O = 1.215 (2) Å. The molecules are associated via five C—H...O hydrogen bonds to form layers parallel to the yz plane. This compound and its dimethyl homologue, which were synthesized by treating the silver salt of o-benzenedisulfonimide with carbamoyl chlorides, are prone to rapid hydrolysis at the weak N—C(O) bond. For both molecules, the rotational barrier about the partial N′—C(O) double bond is ca 50 kJ mol−1 at 250 K (from dynamic 1H NMR experiments).
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 115 (1984), S. 875-880 
    ISSN: 1434-4475
    Keywords: Sulphamoyl chloride, reaction withn-alkyl hydroperoxides ; n-Alkyl hydroperoxides, reaction with sulphamoyl chloride ; Alkyl(sulphamoyl)peroxides, preparation and thermolysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The novel peroxides H2NSO2OOCH2 R (1 a:R=CH2CH3;1 b:R=CH2CH2CH3) are obtained by reaction of sulphamoyl chloride with the appropriate hydroperoxides in the presence of pyridine (temperature below −30 °C, solvent diethyl ether). The solvent-free liquids1 deflagrate at ca. 0 °C. Hydrolysis or ammonolysis of1 generates the hydroperoxide and sulphamic acid or sulphamide, respectively. Controlled thermolysis of1 affords sulphamic acid and carbonyl compounds, i.e. propanal andn-propyl propanoate from1 a, butanal, 2-methylpropanal andn-butyln-butyrate from1 b. These products suggest a nonradical cyclic decomposition path-way.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 106 (1975), S. 1299-1306 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The alkyl-chlorosilyl-peroxides1 and2, the alkoxysilylalkyl-peroxides3 to7 (Table 1) as well as the hitherto unknown chlorosilanes (n-PrO)Me 2SiCl and (t-BuO)Me 2SiCl were prepared, isolated and characterized by analytical and1H-NMR data. Attempts to isolate the unstable peroxides (i-PrO)3SiOOCMe 3 and (Me 3CO)Me 2SiOOCMe 2 Ph failed.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 93 (1962), S. 312-320 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Zusammenfassung Das bei der Umsetzung von K2S2O8 mit SO3 entweichende SO2 entstammt dem SO3 und nicht dem K2S2O8, wie sich durch Markeirung des SO3 mit35S beweisen läßt. Der Kern des gleichzeitig gebildeten K2S3O10 baut sich ebenfalls aus35SO3 und nicht aus dem ursprünglichen K2S2O8 auf. Im K2S3O10 aus dieser Reaktion tauschen nur 2 S-Atome mit dem35S des umgebenden Lösungsmittels aus. Durch Zersetzung von K2S2O6 mit35SO3 entstehendes K2S3O10 besitzt dagegen einen inaktiven Kern als Bruchstück des zerstörten Dithionations. Die Reaktione lassen sich in die vereinfachten Gleichungen fassen: K+[−O-SO2-OO--SO2-O−]K++x 35SO3→O2+35SO2+K+[O3 35S·−O35SO2O−. ·35SO3]K++2SO3+(x−4)35SO3 und K+[−O-SO2-SO2--O−]K++235SO3→SO2+K+[O3 35S·−OSO2O−·35SO3]K+.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 336 (1994), S. 67-69 
    ISSN: 0941-1216
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polysulfonylamines. XLIX. Direct C-Tritylation of Acetonitrile and Acetone with (C6H5)3CCl/AgN(SO2CH3)2 and Solid-State Structure of Tritylacetone
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 337 (1995), S. 413-415 
    ISSN: 0941-1216
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0044-2313
    Keywords: Bis(dimesylamido-O)tetraaquametal(II) complexes ; synthesis ; X-ray structures ; isotypic series ; Jahn-Teller distortion ; hydrogen bond pattern ; graph-theoretical analysis ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Polysulfonyl Amines. LXXIII. Metal(II) Dimesylamide Tetrahydrates: The Dimesylamide Anion as a Monodentate O-Ligand and a Tetrafunctional Hydrogen Bond Acceptor in the Isotypic Complexes [M(H2O)4{(CH3SO2)2N}2], where M = Magnesium, Nickel, Copper, or ZincBy treating aqueous HN(SO2CH3)2 solutions with the appropriate metal hydroxides, oxides, or carbonates, the crystalline tetrahydrates M[(CH3SO2)2N]2 · 4 H2O (M = Mg, Ca, Mn, Co, Ni, Cu, Zn, Cd) were obtained and analytically characterized. The crystal structures of the Mg, Ni, Cu and Zn compounds, as determined by single-crystal X-ray diffraction at low temperatures, reveal an isotypic series (triclinic, space group P1, Z = 1). The structures consist of centrosymmetric trans-octahedral [M(H2O)4{(CH3SO2)2N}2] molecules in which the anionic ligand acts as a monodentate O-donor. For the Mg, Ni and Zn complexes, the M—OH2 and M—O(anion) distances lie in the ranges 203-206 pm and 209-214 pm, respectively. The copper compound features a marked Jahn-Teller distortion with Cu—OH2 = 195.8 and 197.7 pm and Cu—O(anion) = 232.5 pm. The cis-angles O—M—O of the four molecules do not deviate appreciably from 90°. The complex units are associated through a highly organized three-dimensional hydrogen bond network in which all the water protons act as donors and the non-coordinating oxygen atoms and the nitrogen atom of the anionic ligand are involved as acceptors. The H-bond pattern is subjected to a graph-theoretical analysis at the first and second levels.
    Notes: Die kristallinen Tetrahydrate M[(CH3SO2)2N] · 4 H2O (M = Mg, Ca, Mn, Co, Ni, Cu, Zn, Cd) wurden durch Neutralisation wäßriger HN(SO2CH3)2-Lösungen mit entsprechenden Metallhydroxiden, -oxiden oder -carbonaten erhalten und analytisch charakterisiert. Nach Aussage von Tieftemperatur-Röntgenstrukturbestimmungen bilden die Verbindungen mit M = Mg, Ni, Cu und Zn eine isotype Reihe (triklin, Raumgruppe P1, Z = 1). Die Strukturen bestehen aus trans-oktaedrischen und inversionssymmetrischen [M(H2O)4{(CH3SO2)2N}2]-Molekülen mit einzähnig O-bindenden anionischen Liganden. Für die Komplexe mit M = Mg, Ni und Zn werden M—OH2- und M—O(Anion)-Bindungslängen im Bereich 203-206 beziehungsweise 209-214 pm beobachtet. Die Kupferverbindung zeigt eine deutliche Jahn-Teller-Verzerrung mit Cu—OH2 = 195,8 und 197,7 pm und Cu—O(Anion) = 232,5 pm. In keinem der vier Moleküle weichen die cis-Winkel O—M—O stark von 90° ab. Die Komplexeinheiten sind über ein hochgradig organisiertes dreidimensionales Wasserstoffbrücken-Netz miteinander verknüpft, in welchem sämtliche Wasserprotonen als Donoren fungieren und die nichtkoordinierenden Sauerstoffatome des anionischen Liganden ebenso wie dessen Stickstoffatom als Akzeptoren wirken. Das H-Brücken-Muster wird einer graphentheoretischen Analyse auf erstem und zweitem Niveau unterzogen.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 147-150 
    ISSN: 0044-2313
    Keywords: Difluorosulfato-di(acetonitrile)dimethyltin(IV) ; dimethyltin(IV)-bis[di(fluorosulfonyl)amide] ; synthesis ; X-ray structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Di(fluorosulfato)-di(acetonitrile)dimethyltin(IV) [Me2Sn(OSO2F)2(NCMe)2]: Formation and Molecular StructureA single crystal of the title complex (4) was formed accidentally in an attempt to grow crystals of the known compound Me2Sn[N(SO2F)2]2 (3) from acetonitrile. Bulk quantities of the thermally labile species 4 can be obtained from Me2Sn(OSO2F)2 and MeCN. The structure of 4 (monoclinic, space group P21/n) consists of all-trans octahedral formula units displaying crystallographic centrosymmetry (Sn-C 209.2, Sn—O 225.8, Sn—N 235.9 pm, cis-angles 87-93°). The O-monodentate FSO3 ligand does not deviate significantly from C3v symmetry (mean dimensions: S—O 143.4, S—F 156.8 pm, O—S—O 114.9, F—S—O 103.3°). For 3, a new synthesis involving metathesis of Me2SnCl2 with AgN(SO2F)2 · C6H6 is described.
    Notes: Ein Einkristall des Titelkomplexes (4) entstand zufällig bei Versuchen, röntgentaugliche Kristalle der bekannten Verbindung Me2Sn[N(SO2F)2]2 (3) aus Acetonitril zu züchten. Die thermolabile Substanz 4 kann gezielt aus Me2Sn(OSO2F)2 und MeCN dargestellt werden. Die Kristallpackung von 4 (monoklin, Raumgruppe P21/n) besteht aus all-trans-oktaedrischen Formeleinheiten mit kristallographischer Inversionssymmetrie (Sn—C 209,2, Sn—O 225,8, Sn—N 235,9 pm, cis-Winkel 87-93°). Die als einzähniger O-Ligand wirkende FSO3-Gruppe weicht nicht stark von C3v-Symmetrie ab (Mittelwerte: S—O 143,4, S—F 156,8 pm, O—S—O 114,9, F—S—O 103,3°). Als neues Darstellungsverfahren für 3 wird die Metathese von Me2SnCl2 mit AaN(SO2F)2 · C6H6 beschrieben.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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