Abstract
Three π-quinonoid compounds incorporating the organometalloligand ortho-quinone manganese tricarbonyl ([(C6H4O2)Mn(CO)3]−, o-QMTC) have been synthesized and characterized by IR and X-ray crystallography: [Pd(o-QMTC)(PPh3)2]BF4·CH2Cl2 (1), (o-QMTC)Rh(1,5-cyclooctadiene) (2), and Cu(o-QMTC)2 (3). The formally anionic o-QMTC ligand features Mn-arene bonding that is best described as η4-bound. Nevertheless, o-QMTC interplanar angular data and νco data suggest significant contribution from η5 and η6 forms. In each of the compounds, the o-QMTC organometalloligand(s) contribute to a square planar geometry about the Pd(II), Rh(I), or Cu(II) metal center.
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Acknowledgments
This paper is dedicated to the memory of Professor Dwight Sweigart, a cherished mentor, colleague and teacher. He touched many lives throughout his expansive career, inside and outside of the lab. RDP thanks the National Science Foundation and the College of William and Mary for the purchase of X-ray diffraction equipment.
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The authors dedicate this paper to the memory of Prof. Dwight A. Sweigart.
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MacIntosh, A.D., Pike, R.D. & Sweigart, D.A. Synthesis and Structural Characterization of Metal Compounds Incorporating the Ortho-Quinone Manganese Tricarbonyl Complex as an Organometalloligand. J Inorg Organomet Polym 24, 101–106 (2014). https://doi.org/10.1007/s10904-013-9996-5
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DOI: https://doi.org/10.1007/s10904-013-9996-5