Journal
INORGANIC CHEMISTRY
Volume 60, Issue 7, Pages 5172-5182Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.1c00179
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [21001009, 51373003, 11735002, 62071312]
- Innovation of Instrumentation and Key Techniques Foundation of Peking University [7101500246/001, 7101500253/011]
- State Key Laboratory of Nuclear Physics and Technology, Peking University [NPT2020KFY14]
- ICCAS [104]
Ask authors/readers for more resources
The single-crystal structures of five lanthanide-erythritol complexes were studied, revealing the importance of metal ions in promoting proton transfer. It was found that the participation of an OH group from an OLMH molecule in mu(2)-bridge formation enhances the metal ions' polarization ability, facilitating deprotonation of the OH group.
Single-crystal structures of five lanthanide-erythritol complexes are reported. The analysis of the chemical compositions and scrutinization of structural features in the single-crystal data of the complexes led us to find that unexpected deprotonation occurs on the OH group of erythritol of three complexes. Considering these complexes were prepared in acidic environments, where spontaneous ionization on an OH group is suppressed, we suggest metal ions play an important role in promoting the proton transfer. To find out why the chemically inert OH is activated, the single-crystal structures of 63 rare-earth complexes containing organic ligands with multiple hydroxyl groups (OLMHs) were surveyed. The formation of mu(2)-bridges turns out to be directly relevant to the occurrence of deprotonation. When an OH group from an OLMH molecule participates in the formation of a mu(2)-bridge, the polarization ability of the metal ions becomes strong enough to promote the deprotonation on the OH group. The above structural characteristics may be useful in the rational design of catalysts that can activate the chemically inert OH group and promote the relevant chemical conversions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available