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  • Inorganic Chemistry  (28)
  • Polysulfanes  (2)
  • Sulphur respiration  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Growth of Wolinella succinogenes with polysulphide as terminal acceptor of phosphorylative electron transport (1991)
    Springer
    Archives of microbiology 155 (1991), S. 177-182 
    Details
    ISSN: 1432-072X
    Keywords: Sulphur respiration ; Polysulphide ; Electron transport ; Wolinella succinogenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Polysulphide was formed according to reaction (1), when tetrathionate was (1) $${\text{S}}_4 {\text{O}}_6^{2 - } + {\text{HS}}^ - \to 2{\text{S}}_2 {\text{O}}_3^{2 - } + {\text{S(O)}} + {\text{H}}^ + $$ added to an anaerobic buffer (pH 8.5) containing excess sulphide. S(O) denotes the zero oxidation state sulphur in the polysulphide mixture S infn sup2- . The addition of formate to the polysulphide solution in the presence of Wolinella succinogenes caused the reduction of polysulphide according to reaction (2). The bacteria grew in a medium containing formate and sulphide, (2) $${\text{HCO}}_2^ - + {\text{S(O)}} + {\text{H}}2{\text{O}} \to {\text{HCO}}_3^ - + {\text{HS}}^ - + {\text{H}}^ + $$ when tetrathionate was continuously added. The cell density increased proportional to reaction (3) which represents the sum of reactions (1) and (3) $${\text{HCO}}_2^ - + {\text{S}}_{\text{4}} {\text{O}}_6^{2 - } + {\text{H}}2{\text{O}} \to {\text{HCO}}_3^ - + 2{\text{S}}_{\text{2}} {\text{O}}_3^{2 - } + 2{\text{H}}^ + $$ (2). The cell yield per mol formate was nearly the same as during growth on formate and elemental sulphur, while the velocity of growth was greater. The specific activities of polysulphide reduction by formate measured with bacteria grown with tetrathionate or with elemental sulphur were consistent with the growth parameters. The results suggest that W. succinogenes grow at the expense of formate oxidation by polysulphide and that polysulphide is an intermediate during growth on formate and elemental sulphur.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00248614
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  • 2
    Electronic Resource
    Electronic Resource
    The electrochemical proton potential generated by the sulphur respiration of Wolinella succinogenes (1989)
    Springer
    Archives of microbiology 152 (1989), S. 600-605 
    Details
    ISSN: 1432-072X
    Keywords: Sulphur respiration ; Electrochemical proton potential ; Wolinella succinogenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Wolinella succinogenes grown on formate and elemental sulphur was found to use the polysulphide derivatives 2,2′-tetrathiobispropionate (R2S4) or pentathionate (S5O 6 = ) as acceptors for formate oxidation. The specific activities of formate oxidation with these acceptors were similar to those with elemental sulphur. The main reaction products of R2S4 reduction were 2,2′-dithiobispropionate (R2S2) and sulphide. Pentathionate was converted to thiosulphate and some elemental sulphur. The electrochemical proton potential $$(\Delta \tilde \mu _H )$$ across the cytoplasmic membrane of the bacterium was measured in the steady state of electron transport from formate to R2S4. The electrical proportion (Δψ) of the $$(\Delta \tilde \mu _H )$$ determined through the distribution of labeled tetraphenylphosphonium cation was obtained as 0.17 Volt. The Δψ was zero, when a protonophore was present. The pH-difference across the membrane was negligible. Thus the $$(\Delta \tilde \mu _H )$$ generated by sulphur respiration is close to that measured earlier with fumarate as the terminal acceptor of electron transport.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00425494
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  • 3
    Electronic Resource
    Electronic Resource
    Schwefel-Sauerstoff-Verbindungen, 28. Röntgenstrukturanalyse von Ammonium-tetraschwefelpentanitridoxid, NH4[S4N5O] (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3441-3445 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sulfur Oxygen Compounds, 28X-Ray Structure Analysis of Ammonium Tetrasulfur Pentanitride Oxide, NH4[S4N5O]NH4[S4N5O] crystallizes in a monoclinic lattice of space group C2/m with 4 molecules in the unit cell. Both ions are of symmetry CS with average bond distances dNH = 1.01, dSN = 1.619, dSO = 1.433, and dSS = 2.632 Å. The structure of the anion can be derived from the S4N4 cage molecule by substituting one sulfur-sulfur bond by a S—N—S bridge with an additional terminal oxygen atom at one of the bridge head atoms.
    Notes: NH4[S4N5O] kristallisiert in einem monoklinen Gitter der Raumgruppe C2/m mit 4 Molekülen in der Elementarzelle und starken intermolekularen NHN- und NHO-Wasserstoffbrücken. Anionen und Kationen besitzen die Symmetrie Cs, die mittleren Kernabstände betragen dNH = 1.01, dSN = 1.619, dSO = 1.433, dSS = 2.632 Å. Die Struktur des Anions leitet sich vom Käfig des S4N4 durch Ersatz einer SS-Bindung durch eine S—N—S-Brücke ab, wobei eines der Brückenkopfatome zusätzlich ein Sauerstoffatom trägt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761091022
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  • 4
    Electronic Resource
    Electronic Resource
    Schwefel-Verbindungen, 47. Kristall- und Molekülstruktur von 1,3-Bis(4-chlorphenyl)trisulfan-2-oxid, (p-ClC6H4)2S3O (1977)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 3553-3560 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sulfur Compounds, 47. Crystal and Molecular Structure of 1,3-Bis(4-chlorophenyl)trisulfane 2-Oxide, (p-ClC6H4)2S3O(p-ClC6H4)2S3O crystallizes in a molecular lattice of space group Cc with 4 molecules in the monoclinic unit cell without strong intermolecular interactions. The molecular symmetry is approximately Cs, the most important bond lengths are dSS=2.125, dSO=1.449, and dCS=1.780 Å. The central S3O unit resembles the thionyl chloride molecule but the two dihedral angles CSSS are unusually large (176.8°), which is rationalized by substituent interaction with the oxygen atom as well as by packing effects. In solution two conformational isomers exist as shown by vibrational spectra.
    Notes: (p-ClC6H4)2S3O kristallisiert in einem monoklinen Molekülgitter der Raumgruppe Cc mit 4 Molekülen in der Elementarzelle und ohne nennenswerte intermolekulare Wechselwirkungen. Die Molekülsymmetrie ist annähernd Cs, die wichtigsten Kernabstände sind: dSS=2.125, dSO=1.449 und dCS=1.780 Å. Die S3O-Gruppe besitzt eine ähnliche Geometrie wie Thionylchlorid, jedoch sind die Torsionswinkel CSSS mit 176.8° ungewöhnlich groß, was auf die Wechselwirkung des O-Atoms mit den Substituenten und auf Packungseffekte im Gitter zurückgeführt wird. IR- und Raman-Spektren zeigen, daß in Lösung zwei Konformationsisomere vorliegen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19771101111
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  • 5
    Electronic Resource
    Electronic Resource
    Schwefelverbindungen, 143 Synthese und Charakterisierung der neuen bicyclischen Schwefel-Kohlenstoff-Verbindungen C6H8S8, C4H4S7 und C4H4S82) (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 2141-2143 
    Details
    ISSN: 0009-2940
    Keywords: Sulfur-carbon compounds, bicyclic ; Titanocene chelate complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Sulfur Compounds, 143.  -  Synthesis and Characterisation of the New Bicyclic Sulfur-Carbon Compounds C6H8S8, C4H4S7, and C4H4S8The reaction of Cp4Ti2C2S4 (1) with two equivalents of the bissulfenyl chloride 1,2-C2H4(SCl)2 affords the new bicyclic compound C6H8S8 (2). Treatment of 1 with one equivalent of SxCl2 (x = 1, 2) results in Cp2TiC2S5 (3) and Cp2TiC2S6 (4), respectively, which on reaction with 1,2-C2H4(SCl)2 give the asymmetric bicyclic polysulfides C4H4S7 (5) and C4H4S8 (6), respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911240941
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  • 6
    Electronic Resource
    Electronic Resource
    Sulfur Compounds, Part 186Part 185: K. Bergemann, M. Kustos, P. Krüger, R. Steudel, Angew. Chem., in print.. The Synthesis of Cyclic Organosulfur Compounds from (C5H5)4Ti2C2S4 by Ligand Transfer Reactions (1995)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 561-564 
    Details
    ISSN: 0009-2940
    Keywords: Titanocene complexes ; Organosulfur ligands ; Ligand transfer ; Organosulfur heterocycles ; Sulfur-sulfur bonds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The tetrathiaoxalate complex Cp4Ti2C2S4 (1) reacts with an equimolar amount of COCl2 to give the blue-green mononuclear complex Cp2TiC2S4CO (4). This reaction is analogous to the known reactions of 1 with SCl2 or S2Cl2. However, when 1 was treated with equimolar amounts of the bifunctional sulfenyl chlorides 1,2-C2H4(SCl)2 (5), 1,3-C3H6(SCl)2 (6) or 1,2-C6H4(SCl)2 (7), the bi- or monocyclic tetrakisdisulfanes C6H8S8 (9b), C8H12S8 (10), and C14H8S8 (11), respectively, were obtained. The X-ray crystal structure analysis of 11 · CS2 showed that 11 possesses Ci symmetry with a central exocyclic CC double bond similar to tetrathiafulvalenes: C6H4(μ-S2)2C=C(μ-S2)2C6H4.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19951280606
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  • 7
    Electronic Resource
    Electronic Resource
    Sulfur Compounds, 199Part 198: R. Steudel, Y Drozdova, K. Miaskiewicz, R. H. Hertwig, W. Koch, J Am. Chem. Soc. 1997, 119, 1990.. Novel Titanocene Thiolato Complexes and Their Application in Preparing New Sulfur-Containing Heterocycles (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 757-764 
    Details
    ISSN: 0009-2940
    Keywords: Titanocene complexes ; S ligands ; Organic polysulfanes ; Ligand transfer reactions ; Sulfur heterocycles ; Chalcogens ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Treatment of Cp2Ti(CO)2 (3) with the di- and polysulfanes 1,2,4-(CH2)2S3, C4S6 (9), C,7H10S3 (11), 1,2,4,6-(CH2)3S4 (16), C6H10S6(19), and S6 affords the titanocene chelate complexes Cp2TiS3(CH2)2 (8), (Cp2Ti)2C4S6 (10), Cp2TiS3C7H10 (13), Cp2TiS2C7H10 (14), Cp2TiS4(CH2)3 (17), Cp,2TiS6C6H6H10 (20), and Cp2TiS8 (23). 14 is also obtained from Cp2TiCl2 (1) and the geminal dithiol of norbornene. The analogous reaction with the dithiol of dicyclopentadiene yields Cp2TiS2C10H12 (15). In ligand transfer reactions, 8 reacts with SCl2 to give 1,2,3,5-tetrathiane (25), 10 provides 9 on reaction with Cl2, 13 when treated with S2Cl2 affords C7H10S5 (12), 15 reacts with S2Cl2Cl2 to give C10H12S4. 17 and SCl2 yield 1,2,3,5,7-pentathiepane (18), 20 is converted to C6H10S7 (22) on reaction with SCl2, and 23 yields S10 and 1,2,-C6H4(SCl)2, respectively. With phosgene, thiophosgene, and thionyl chloride, compound 15 yields the corresponding dithiocarbonate 26, the trithiocarbonate 27 and the trisulfane 2-oxide 28. The structure of 27 was determined by X-ray crystallography.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300614
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  • 8
    Electronic Resource
    Electronic Resource
    Sulfur Compounds, 144 Synthesis of Sulfur-Rich Organic Polysulfanes Utilizing Titanocene Pentasulfide as a Sulfur-Transfer Reagent (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 2357-2359 
    Details
    ISSN: 0009-2940
    Keywords: Heptasulfanes, cyclic ; Pentasulfane, linear ; Polysulfanes, organic, HPLC of ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Titanocene pentasulfide, Cp2TiS5 (1) reacts with Ph3CCl (4), C2H4(SCl)2 (6), and CH3C6H3(SCl)2 (9) to give the corresponding polysulfanes (Ph3C)5 (5), C2H4S7 (7), and CH3C6H3S7 (8) which have been characterized by NMR, mass, and Raman spectroscopy. By interconversion reactions the mentioned polysulfanes yield homologous molecules with up to 11 sulfur atoms which have been separated by reversed-phase HPLC. Linear relationships between the capacity factor and the number of sulfur atoms in the molecule have been derived for each series, and retention indices have been calculated.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911241032
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  • 9
    Electronic Resource
    Electronic Resource
    Synthesis of Bis(trichloromethyl)tetra- and -heptasulfane from Titanocene Polysulfide Complexes and Structure of (CCl3)2S7 (1995)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 725-728 
    Details
    ISSN: 0009-2940
    Keywords: Organic polysulfanes ; Titanocene compounds ; Sulfur ligand transfer ; Chain length equilibration ; Sulfur helix ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: CCl3SCl reacts with (C5H5)2TiS5 to give the heptasulfane (CCl3)2S7 which forms colorless crystals of m.p. 38°C. An X-ray structural analysis revealed that the C-S7-C chain is helical but the CCl3 groups are slightly tilted. In the triclinic crystals the molecules are arranged parallel to each other. Decomposition of (CCl3)2S7 provides other members of the homologous series with 4-12 sulfur atoms as shown by HPLC analysis. The reaction of CCl3SCl with (C5H4-CH3)4Ti2S4 yields colorless crystals of (CCl3)2S4, demonstrating the usefulness also of dinuclear titanocene polysulfide complexes for the synthesis of organic polysulfanes. Infrared, Raman, and 13C-NMR spectra of (CCl3)2S7 and (CCl3)S7 are reported.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19951280711
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  • 10
    Electronic Resource
    Electronic Resource
    Sulfur Compounds, 174. Preparation of Long-Chain Polysulfanes from Dialkoxysulfanes: Synthesis of Bis(2,3,4,6-tetra-O-acetyl-1-deoxy-β-D-glucopyranosyl)tetrasulfane and -undecasulfane (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 1219-1221 
    Details
    ISSN: 0009-2940
    Keywords: Tetrasulfane, bis(2,3,4,6-tetra-O-acetyl-1-deoxy-β-D-glucopyranosyl)- ; Undecasulfane, bis(2,3,4,6-tetra-O-acetyl-1-deoxy-β-D-glucopyranosyl)- ; Polysulfanes, bisorganyl ; Sulfanes, dialkoxy- ; 1-Thio-β-D-glucopyranose, tetra-O-acetyl- ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Dialkoxysulfanes (RO)2Sn (n ≥ 2) react with thiols R′SH as sulfur transfer reagents to form long-chain diorganylpoly-sulfanes R′2Sn+2 under mild conditions. Condensation of tetra-O-acetyl-1-thio-β-D-glucopyranose (acGlcSH) with diisopropoxydisulfane (iPrO)2S2 and diisopropoxynonasulfane (iPrO)2S9 at 40°C yields bis(2,3,4,6-tetra-O-acetyl-1-deoxy-β-D-glucopyranosyl)tetrasulfane (1) (acGlc)2S4 and bis(2,3,4,6-tetra-O-acetyl-1-deoxy-β-D -glucopyranosyl)undecasulfane (2) (acGlc)2S11, respectively. The analogous reaction using diisopropoxymonosulfane does not yield the corresponding trisulfane.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941270707
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