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Triple Frustrated Lewis Pair‐Type Reactivity on a Single Rare‐Earth Metal Center
Author(s) -
Sun Xiong,
Su Wei,
Shi Kaiying,
Xie Zhuoyi,
Zhu Congqing
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201905629
Subject(s) - frustrated lewis pair , reactivity (psychology) , chemistry , rare earth , lewis acids and bases , cerium , center (category theory) , metal , ligand (biochemistry) , stereochemistry , crystallography , inorganic chemistry , organic chemistry , catalysis , mineralogy , medicine , biochemistry , alternative medicine , receptor , pathology
Rare‐earth metal cations have been used rarely as Lewis‐acidic components in the chemistry of frustrated Lewis pairs (FLPs). Herein, we report the first cerium/phosphorus system ( 2 ) employing a heptadentate N 4 P 3 ligand, which exhibits triple FLP‐type reactivity towards a series of organic substrates, including isocyanates, isothiocyanates, diazomethane, and azides on a single rare‐earth Lewis acidic Ce center. This result shows that the Ce center and three P atoms in 2 could simultaneously activate three equivalents of small molecules under mild conditions. This study broadens the diversity of FLPs and demonstrates that rare earth based FLP exhibit unique properties compared with other FLP systems.