1H 13C NMR Investigation of E/Z-Isomerization around C N Bond In the Trans-Alkene-Pt(II)Imine Complexes of Some Ketimines and Aldimines
نوع المنشور
بحث أصيل
المؤلفون
  • M. Bakkar
  • M. Monshi
  • I. Warad
  • M. Siddiqui
  • A. Bahajaj
النص الكامل
تحميل
Ketimines (K1, K2) and aldimines (A1, A2, and A3) were prepared from unsubstituted acetophenone and/or benzaldehyde and primary amines (i-PrNH2, i-BuNH2 and t-BuNH2). These imines were reacted with Zeise’s salt (potassium ethenetrichloroplatinate(II)) to produce the respective complexes, namely, PtK1, PtK2, PtA1, PtA2, and PtA3. 1H, 13C, and 195Pt-chemical shifts of the ligands and their complexes were studied to investigate the nature and mode of isomerization around C N bond. The aldimines and their complexes were obtained as a single isomer. On the other hand, the ketimines and their complexes were obtained as a mixture of E/Z-isomers. It was found that the aldimine- and ketimine-platinum complexes undergo slow E/Z-isomerization in solution as evidenced from NMR spectra.
المجلة
العنوان
Journal of Saudi Chemical Society
الناشر
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بلد الناشر
فلسطين
نوع المنشور
Both (Printed and Online)
المجلد
--
السنة
2010
الصفحات
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