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Formation of Hexacarbonylmanganese(I) Salts, [Mn(CO)6]+X-, in Anhydrous HF

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Lehmann,  Christian W.
Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Geier, J., Willner, H., Lehmann, C. W., & Aubke, F. (2007). Formation of Hexacarbonylmanganese(I) Salts, [Mn(CO)6]+X-, in Anhydrous HF. Inorganic Chemistry, 46(17), 7210-7214. doi:10.1021/ic700798z.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-9149-C
Abstract
A convenient one-step synthesis for [Mn(CO)6]+ salts has been developed. The method involves the one-electron oxidation of Mn2(CO)10 by protons in solutions of Lewis acids (BF3, (CF3)3BCO) and anhydrous HF. The molecular structure of [Mn(CO)6][BF4]·SO2 was determined by single-crystal X-ray diffraction. Crystal data:  orthorhombic, space group Cmc21; a=8.7001(2)Å, b=11.8497(3)Å, and c=11.7437(3)Å; Z=4; R1=0.0320 and wR2=0.1106. The structural, NMR, and vibrational spectroscopic properties of [Mn(CO)6]+ fit perfectly with those of the isoelectronic species [V(CO)6]-, Cr(CO)6, and [Fe(CO)6]2+.