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  • 1
    Digitale Medien
    Digitale Medien
    Speciation of some triphenyltin compounds in estuarine sediments using mössbauer spectroscopy (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 6 (1992), S. 273-278 
    Details
    ISSN: 0268-2605
    Schlagwort(e): Triphenyltin compounds ; sediments ; Mössbauer spectroscopy ; speciation ; triphenyltin hydroxide ; triphenyltin acetate ; triphenyltin chloride ; triphenyltin fluoride ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The speciation of several triphenyltin compounds, i.e. triphenyltin hydroxide, acetate, chloride and fluoride, was studied by Mössbauer spectroscopy in both anaerobic and aerobic estuarine sediments. The results indicated that triphenyltin hydroxide and acetate were converted to the triphenyltin cation, the species that interacts with the sediments. However, both triphenyltin fluoride and chloride remained in their molecular form in their interaction with the sediments.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aoc.590060305
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  • 2
    Digitale Medien
    Digitale Medien
    Structure-Activity relationships of effect of aryltin compounds on Ceratocystis ulmi (1994)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 8 (1994), S. 445-449 
    Details
    ISSN: 0268-2605
    Schlagwort(e): Organotin ; aryltin ; triaryltin ; tetraaryltin ; toxicity ; Mössbauer ; QSAR ; quantitative structure-activity ; fungus ; Ceratocystis ulmi ; fungicide ; Dutch elm disease ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The effect of aryltin compounds (Ar4Sn and Ar3SnCl) on the growth of Ceratocystis ulmi, the causative agent of Dutch elm disease, was studied in shake culture. In all cases, the triaryltins were more effective than the tetra-aryltins as inhibitors of C. ulmi in vitro. Furthermore, substitution on the phenyl ring at the meta- and para- positions in the triaryltins did not have a major effect on the biocidal activity for the substituted triaryltins. Quantitative structure-activity relationships (QSARs) gave support to the idea that the species responsible for the inhibition of the fungus is the triaryltin cation. The QSARs further suggest that the interaction of the triaryltin cation with the fungal cell wall of C. ulmi is by a non-specific mechanism.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aoc.590080504
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  • 3
    Digitale Medien
    Digitale Medien
    The effects of salinity and pH on the speciation of some triphenyltin compounds in estuarine sediments using Mössbauer spectroscopy (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 7 (1993), S. 219-222 
    Details
    ISSN: 0268-2605
    Schlagwort(e): Anoxic sediments ; oxic sediments ; Mössbauer spectroscopy ; pH ; salinity ; speciation ; triphenyltin compounds ; triphenyltin hydroxide ; triphenyltin chloride ; triphenyltin fluoride ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The speciation of some triphenyltin compounds i.e. triphenyltin hydroxide, triphenyltin chloride, triphenyltin fluoride, under varying salinity and pH conditions, was studied by Mössbauer spectroscopy in both anoxic and oxic estuarine sediments. The results indicate that altering the pH or salinity of the sediment environment does not apparently affect the speciation of these compounds.
    Zusätzliches Material: 4 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aoc.590070310
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  • 4
    Digitale Medien
    Digitale Medien
    Interaction of triorganotin compounds with chesapeake bay sediments and benthos (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 7 (1993), S. 437-441 
    Details
    ISSN: 0268-2605
    Schlagwort(e): Triorganotin ; triphenyltin ; tributyltin ; sediments ; Mössbauer spectroscopy ; speciation ; benthos ; Chesapeake Bay ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Triorganotin compounds can interact with various segments of natural water systems. In sediments, for example, these compounds can undergo speciation, and can also become injurious to benthos. The interaction of tributyltin (TBT) and triphenyltin (TPT) compounds with sediments have been studied using extraction techniques in addition to directly observing these compounds in sediments using Mössbauer spectroscopy. The effect of these compounds on benthos has also been examined. The results of these studies are reviewed with particular regard to studies on sediments from the Chesapeake Bay, USA.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aoc.590070703
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  • 5
    Digitale Medien
    Digitale Medien
    Molecular Structure and Fungicidal Activity against Ceratocystis ulmi of the 1:1 Adducts of Triphenyltin Chloride and 2,3-Disubstituted Thiazolidin-4-ones (1996)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 10 (1996), S. 495-499 
    Details
    ISSN: 0268-2605
    Schlagwort(e): Adducts ; C. ulmi ; thiazolidin-4-ones ; Dutch elm disease ; IR spectroscopy ; Mössbauer spectroscopy ; toxicity ; triphenyltin Chloride ; Chemistry ; Industrial Chemistry and Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Several 1:1 addition compounds between triphenyltin chloride and 2,3-disubstituted thiazolidin-4-one ligands have been synthesized. Their molecular structure has been deduced using far IR and Mössbauer spectroscopies. In addition, molecular modeling of several of the complexes was used to explain the variation of the quadrupole splitting values in the Mössbauer spectra. The structures of the complexes were determined to be trigonal-bipyramidal with the three phenyl groups in the equatorial plane. However, the phenyl groups are not co-planar, on the basis of the observation of both the Sn-C (phenyl) symmetric and asymmetric stretching vibrations. The adducts were screened against the fungus Ceratocystis ulmi, the agent responsible for Dutch elm disease, and found to be effective in the inhibition of this fungus. The toxicity of the adducts varied with the hydrophobicity of the molecule. A direct correlation between substitution on the phenyl group on the thiazolidine ring and the toxicity of the compound was not observed.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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