Synthesis,Characterization, and X‐ray Structures of Ru3(CO)9(dotpm)(L) Complexes [L = PPh3, P(C6H4Cl‐p)3, and PPh2(C6H4Br‐p)] |
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Authors: | Siti Syaida Sirat Imthyaz Ahmed Khan Omar Bin Shawkataly Mohd Mustaqim Rosli |
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Institution: | 1. Chemical Sciences Programme, School of Distance Education, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia;2. Department of Chemistry, Gokhale Centenary College, Ankola 581314, NK, Karnataka, India;3. X‐ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia |
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Abstract: | The reaction of Ru3(CO)10(dotpm) ( 1 ) dotpm = (bis(di‐ortho‐tolylphosphanyl)methane)] and one equivalent of L L = PPh3, P(C6H4Cl‐p)3 and PPh2(C6H4Br‐p)] in refluxing n‐hexane afforded a series of derivatives Ru3(CO)9(dotpm)L] ( 2 – 4 ), respectively, in ca. 67–70 % yield. Complexes 2 – 4 were characterized by elemental analysis (CHN), IR, 1H NMR, 13C{1H} NMR and 31P{1H} NMR spectroscopy. The molecular structures of 2 , 3 , and 4 were established by single‐crystal X‐ray diffraction. The bidentate dotpm and monodentate phosphine ligands occupy equatorial positions with respect to the Ru triangle. The effect of substitution resulted in significant differences in the Ru–Ru and Ru–P bond lengths. |
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Keywords: | Triruthenium cluster Crystal structure Phosphine ligands dotpm NMR spectroscopy X‐ray diffraction |
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