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Maser L, Vogt M, Langer R. Facial vs. Meridional Coordination Modes in Re
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Tricarbonyl Complexes with a Carbodiphosphorane‐based Tridentate Ligand. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Leon Maser
- Institute of Chemistry Faculty of Natural Science II Martin-Luther-University Halle-Wittenberg Kurt-Mothes-Str. 2 06120 Halle (Saale) Germany
| | - Matthias Vogt
- Institute of Chemistry Faculty of Natural Science II Martin-Luther-University Halle-Wittenberg Kurt-Mothes-Str. 2 06120 Halle (Saale) Germany
| | - Robert Langer
- Institute of Chemistry Faculty of Natural Science II Martin-Luther-University Halle-Wittenberg Kurt-Mothes-Str. 2 06120 Halle (Saale) Germany
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Xu W, Maser L, Alig L, Langer R. Rhodium carbonyl complexes featuring carbodiphosphorane-based pincer ligands. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.115018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Maser L, Korziniowski P, Langer R. Flexible coordination of carbodiphosphorane-based pincer ligands in chromium(0) carbonyl complexes. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A series of chromium(0) complexes was obtained by subsequent irradiation of [Cr(CO)6] in the presence of [(Ph2P-CH2-PPh2)2CH]+. Depending on the reaction conditions and the duration of irradiation, complexes with different coordination modes of the potentially tridentate ligand can be isolated. Shorter irradiation times lead to the coordination of the terminal PPh2 groups and the formation of [(κ2P,P′-{Ph2P-CH2-PPh2}CH)Cr(CO)4]+ (2), whereas after longer irradiation duration, the formation of fac- and mer-[(κ3P,C,P′-{Ph2P-CH2-PPh2}CH)Cr(CO)3]+ (3) can be observed. In the presence of base, the neutral complex [(κ3P,C,P′-{Ph2P-CH2-PPh2}C)Cr(CO)3] (4) can be isolated, enabling the analysis of the central CDP group’s net donor strength through the C–O stretching vibration. Finally, the utilization of reductants like potassium graphite lead to the loss of hydrogen and generation of an anionic chromium(0) complex (5). Using quantum chemical methods, the stability of possible isomers is explored.
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Affiliation(s)
- Leon Maser
- Institute of Chemistry, Natural Science Faculty II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
| | - Philipp Korziniowski
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
| | - Robert Langer
- Institute of Chemistry, Natural Science Faculty II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, 35032 Marburg, Germany
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