Abstract
Reported herein are the synthesis and characterization of the Ru(II)(dppe)2 (dppe = 1,2-bis(diphenylphosphino)ethane) mono-alkynyl compounds containing the highly electron-withdrawing NAPR group (NAPR = N-R-1,8-napthalimide). The two mono-alkynyl compounds, trans-RuCl(C2NAPR)(dppe)2, (R = isopropyl (iPr, 1) and mesityl (mes, 2)) were prepared from the reaction of cis-RuCl2(dppe)2 and HC2NAPR in the presence of a weak base. All new compounds were characterized via electronic absorption, fluorescence, IR, and 1H NMR spectroscopies and cyclic voltammetry. The molecular structures of 1 and 2 were established using single-crystal X-ray diffraction analysis, and preliminary density functional theory analysis was performed to investigate the electronic structures of 1 and 2.
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