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We report the synthesis of molybdenum and tungsten bromo dicarbonyl complexes (POCOP t Bu)MIIBr(CO)2 (M = Mo or W; POCOP t Bu = κ3-C6H3-1,3-[OP(tBu)2]2) supported by an anionic PCP pincer ligand, and the chromium… Click to show full abstract
We report the synthesis of molybdenum and tungsten bromo dicarbonyl complexes (POCOP t Bu)MIIBr(CO)2 (M = Mo or W; POCOP t Bu = κ3-C6H3-1,3-[OP(tBu)2]2) supported by an anionic PCP pincer ligand, and the chromium complex (PNP t Bu)Cr0(CO)3 (PNP t Bu = 2,6-bis(di-tert-butyl-phosphinomethyl)pyridine) bearing a neutral PNP pincer scaffold. The three group six complexes described in this study have been characterized by Liquid Injection Field Desorption Ionization Mass Spectrometry (LIFDI-MS), NMR, and IR spectroscopy. Single crystal X-ray diffraction studies show the MoII and WII complexes adopt a six-coordinate distorted trigonal prismatic geometry, whereas the Cr0 complex exhibits a distorted octahedral geometry.
Journal Title: European Journal of Mass Spectrometry
Year Published: 2023
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