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Title: Square-planar Co( iii ) in {O 4 } coordination: large ZFS and reactivity with ROS
Oxidation of distorted square-planar perfluoropinacolate Co compound [Co II (pin F ) 2 ] 2− , 1 , to [Co III (pin F ) 2 ] 1− , 2 , is reported. Rigidly square-planar 2 has an intermediate-spin, S = 1, ground state and very large zero-field splitting (ZFS) with D = 67.2 cm −1 ; | E | = 18.0 cm −1 , ( E / D = 0.27), g ⊥ = 2.10, g ‖ = 2.25 and χ TIP = 1950 × 10 −6 cm 3 mol −1 . This Co( iii ) species, 2 , reacts with ROS to oxidise two (pin F ) 2− ligands to form tetrahedral [Co II (Hpfa) 4 ] 2− , 3 .  more » « less
Award ID(s):
1800313
PAR ID:
10098367
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Date Published:
Journal Name:
Chemical Communications
Volume:
54
Issue:
85
ISSN:
1359-7345
Page Range / eLocation ID:
12045 to 12048
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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