Electronic structures and photophysics of d8-d8 complexes
[Display omitted] •Excitation, reduction, and oxidation strengthen d8-d8 metal-metal bonding interactions.•Long-lived singlet and triplet excited states and dual emission are frequent features of d8-d8 complexes.•Femtosecond optical excitation triggers coherent motions of the metal-metal unit.•Highe...
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| Published in: | Coordination chemistry reviews Vol. 345; pp. 297 - 317 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Elsevier B.V
15.08.2017
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| ISSN: | 0010-8545, 1873-3840 |
| Online Access: | Get full text |
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| Summary: | [Display omitted]
•Excitation, reduction, and oxidation strengthen d8-d8 metal-metal bonding interactions.•Long-lived singlet and triplet excited states and dual emission are frequent features of d8-d8 complexes.•Femtosecond optical excitation triggers coherent motions of the metal-metal unit.•Higher excited states have mixed-spin, with some charge-transfer character.•Two-electron superreduced complexes feature (pσ)2 metal-metal bonds combined with electron delocalization over the ligands.
Research on d8-d8 complexes is being actively pursued, owing, in part, to newly developed time-resolved optical, IR, and X-ray methods that directly interrogate bonding changes upon excitation. Our review covers work on the ground- and electronic excited states, as well as the oxidized and reduced forms, of these complexes. Recent experimental and theoretical results add a new chapter to the rich history of d8-d8 spectroscopic and chemical behavior. |
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| ISSN: | 0010-8545 1873-3840 |
| DOI: | 10.1016/j.ccr.2017.01.008 |