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Ligand modification effects on the electrochromic character of ruthenium sulfoxide complexes: a theoretical perspective.
- Source :
-
Theoretical Chemistry Accounts: Theory, Computation, & Modeling . Aug2016, Vol. 135 Issue 8, p1-11. 11p. - Publication Year :
- 2016
-
Abstract
- Here, we use dispersion-corrected density functional theory methods to illustrate how it is possible to control the electronic and photophysical properties of [Ru(bpy)2(OSO)]+ (bpy = 2,2′-bipyridine; OSO = methylsulfinylbenzoate) isomers with the type and positions of the substituents on coordinated ligand. It is found that the frontier MOs of the ruthenium sulfoxide complexes can be substantially modulated as a function of different substitution patterns. Correspondingly, the first absorption and phosphorescence emission transitions can be tuned because both of them are dominated by one-electron transitions between frontier MOs. More importantly, the relative thermodynamic stabilities of two linkage isomers also can be changed with ligand modification. It is proposed that the Ru–S → Ru–O1 isomerization is more thermodynamically favored by electron-withdrawing group substitution on coordinated ligands. Understanding the variation of electronic and photophysical properties induced by ligand modification can be used for developing a rational design process for such electrochromic materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1432881X
- Volume :
- 135
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Theoretical Chemistry Accounts: Theory, Computation, & Modeling
- Publication Type :
- Academic Journal
- Accession number :
- 149894154
- Full Text :
- https://doi.org/10.1007/s00214-016-1947-0