Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 17, Issue 48, Pages 32443-32454Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cp04112k
Keywords
-
Funding
- National Science Foundation [CHE-0955515]
- Alfred P. Sloan Foundation
- Camille and Henry Dreyfus Foundation [20112016]
- NSF [CNS-1006860, EPS-1006860, EPS-0919443]
Ask authors/readers for more resources
A model manganese dimer electrocatalyst bridged by mu-OH ligands is used to investigate changes in spin states that may occur during water oxidation. We have employed restricted open-shell Hartree-Fock (ROHF), second-order Moller-Plesset perturbation theory (MP2), complete active space self-consistent field (CASSCF), and multireference second-order Moller-Plesset perturbation theory (MRMP2) calculations to investigate this system. Multiconfigurational methods like CASSCF and MRMP2 are appropriate methods to study these systems with antiferromagnetically-coupled electrons. Orbital occupations and distributions have been closely analyzed to understand the electronic details and contributions to the water splitting from manganese and oxygen atoms. The presence of Mn(IV)O-center dot radical moieties has been observed in this catalytic pathway. Multiple nearly degenerate excited states were found close to the ground state in all structures. This suggests competing potential energy landscapes near the ground state may influence the reactivity of manganese complexes such as the dimers studied in this work.
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