Correction: HCOOH disproportionation to MeOH promoted by molybdenum PNP complexes |
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| Authors: | Elisabetta Alberico Thomas Leischner Henrik Junge Anja Kammer Rui Sang Jenny Seifert Wolfgang Baumann Anke Spannenberg Kathrin Junge Matthias Beller |
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| Institution: | Leibniz-Institut für Katalyse e. V., Albert-Einstein Straße 29a, 18059 Rostock Germany.; Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, tr. La Crucca 3, 07100 Sassari Italy, |
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| Abstract: | Correction for ‘HCOOH disproportionation to MeOH promoted by molybdenum PNP complexes’ by Elisabetta Alberico et al., Chem. Sci., 2021, 12, 13101–13119, DOI: 10.1039/D1SC04181A.The authors regret that in of the original article, complexes 7 and 8 were drawn incorrectly. The solid-state structure of both complexes, as established by X-ray analysis, had been previously reported (7 (ref. 1) and 8 (ref. 2)). In both complexes, the PNP ligand adopts a facial tridentate coordination to molybdenum and not a meridional one, as erroneously shown in of the original article. The correct ligand arrangements in the metal coordination sphere for complexes 7 and 8 are reported below in .Open in a separate windowMo–PNP complexes tested in the dehydrogenation of HCOOH.Open in a separate windowProposed mechanisms for HCOOH dehydrogenation (red), disproportionation (blue) and decarbonylation (green) promoted by 5. Evidence for the formation of a Mo(iv) species is based on the detection by NMR of H2 and HD following addition of DCOOD to Mo(H)n species (see Fig. SI-31).Please note that complex 8 is also shown in Scheme 4 in the proposed mechanism for HCOOH decarbonylation (green part), and in . In both cases, the correct structure for complex 8 is reported below in and .Open in a separate window 1H and 31P{1H} NMR spectra of a toluene-d8 solution of {Mo(CH3CN)(CO)2(HN(CH2CH2P)(CH(CH3)2)2]2} 4 in the presence of 100 equivalents of HCOOH (Mo] 10−2 M, HCOOH] 1 M), before (a) and after heating at 90 °C for 1 hour (b). Spectra were recorded at room temperature. Signals related to complex 5 are marked by red dots.Open in a separate windowMolecular structure of {Mo(CO)2(CH3CN)CH3N(CH2CH2P(CH(CH3)2)2)2]} 9. Displacement ellipsoids correspond to 30% probability. Hydrogen atoms are omitted for clarity.Furthermore, a mistake was made in the caption of Fig. 6, showing the solid-state structure of complex 9: the latter has been incorrectly described as a Mo(i)-hydride species {Mo(H)(CO)2(CH3CN)CH3N(CH2CH2P(CH(CH3)2)2)2]}. The correct formula, in agreement with the X-ray structure, is as follows and is shown above in : {Mo(CO)2(CH3CN)CH3N(CH2CH2P(CH(CH3)2)2)2]}.The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers. |
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