Abstract
Two novel ferrocenyl substituted N-acetyl-2-pyrazolines, N-acetyl-3-(2-furyl)-5-ferrocenyl-2-pyrazoline (3) and N-acetyl-3-(2-thienyl)-5-ferrocenyl-2-pyrazoline (4), have been synthesized and characterized by FTIR, 1H-NMR, 13C-NMR techniques, elemental analysis and X-ray structure analysis. Thermal properties of these compounds have been determined by TGA, DTA and DSC analysis. Compound 3 (C19H18N2O2Fe) crystallizes in the monoclinic space group P21/c and Z = 4, with a = 8.6970(4) Å, b = 18.4725(9) Å, c = 11.0041(5) Å, β = 110.942(3)°. Compound 4 (C19H18N2OSFe) crystallizes in the orthorhombic space group Fdd2 and Z = 16, with a = 84.242(2) Å, b = 13.5416(5) Å, c = 5.9405(2) Å, β = 90°. In terms of crystal packing, each compound shows different molecular arrangement, which are stabilized by C–H···O intermolecular weak hydrogen bonds, and/or C–H···π interactions.
Index Abstract
Two novel ferrocenyl-containing 2-pyrazolines have been synthesized and fully characterized by FT-IR, 1H-NMR, 13C-NMR techniques, elemental analysis and X-ray crystal structure analysis. Thermal properties of these compounds have been determined by TGA, DTA and DSC analysis.
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Acknowledgments
The authors acknowledge the Research Board Akdeniz University (grand no BAP-2007.01.0105.001) for financial support, the Faculty of Arts and Sciences Ondokuz Mayıs University, for the Stoe IPDS-II diffractometer (purchased under grand F.279 of the University Research Fund) and the Faculty of Arts and Sciences Gaziosmanpasa University, for the Thermal and NMR analyses.
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Cin, G.T., Demirel Topel, S., Cakıcı, A. et al. Synthesis, Crystal Structure and Thermal Properties of N-Acetyl-3-(2-furyl)-5-ferrocenyl-2-pyrazoline and N-Acetyl-3-(2-thienyl)-5-ferrocenyl-2-pyrazoline. J Chem Crystallogr 42, 372–380 (2012). https://doi.org/10.1007/s10870-011-0256-7
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DOI: https://doi.org/10.1007/s10870-011-0256-7