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Issue 11, 2009
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Polymorphism and versatile solvate formation of thiophanate-methyl

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The polymorphism of a fungicide, thiophanate-methyl (TM), was investigated with conventional solvent screening methods. Two polymorphs, the thermodynamically most stable form I and the less stable form II, were found. TM was also found to crystallize as a plethora of different solvates which produced mostly form II upon desolvation. The structures of form I and form II and the fourteen discovered solvates were solved by single crystal X-ray diffraction. The most stable forms were further characterized by powder diffraction, thermoanalytical (TG/DTA, DSC and thermomicroscopy) and spectroscopic (IR, Raman, 13C CP/MAS NMR) methods.

Graphical abstract: Polymorphism and versatile solvate formation of thiophanate-methyl

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The article was received on 18 Mar 2009, accepted on 14 Jul 2009 and first published on 07 Aug 2009

Article type: Paper
DOI: 10.1039/B905511H
Citation: CrystEngComm, 2009,11, 2536-2547
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    Polymorphism and versatile solvate formation of thiophanate-methyl

    E. Nauha, H. Saxell, M. Nissinen, E. Kolehmainen, A. Schäfer and R. Schlecker, CrystEngComm, 2009, 11, 2536
    DOI: 10.1039/B905511H

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