Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation
Large increases in molecular two-photon absorption, the onset of measurable molecular three-photon absorption, and record molecular four-photon absorption in organic p-delocalizable frameworks are achieved by incorporation of bis(diphosphine)ruthenium units with alkynyl linkages. The resultant ruthe...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
2016
|
| Online Access: | http://hdl.handle.net/20.500.11937/39360 |
| _version_ | 1848755571074793472 |
|---|---|
| author | Simpson, Peter Watson, L. Barlow, A. Wang, G. Cifuentes, M. Humphrey, M. |
| author_facet | Simpson, Peter Watson, L. Barlow, A. Wang, G. Cifuentes, M. Humphrey, M. |
| author_sort | Simpson, Peter |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Large increases in molecular two-photon absorption, the onset of measurable molecular three-photon absorption, and record molecular four-photon absorption in organic p-delocalizable frameworks are achieved by incorporation of bis(diphosphine)ruthenium units with alkynyl linkages. The resultant ruthenium alkynyl-containing dendrimers exhibit strong multiphoton absorption activity through the biological and telecommunications windows in the near-infrared region. The ligated ruthenium units significantly enhance solubility and introduce fully reversible redox switchability to the optical properties. Increasing the ruthenium content leads to substantial increases in multiphoton absorption properties without any loss of optical transparency. This significant improvement in multiphoton absorption performance by incorporation of the organometallic units into the organic p-framework is maintained when the relevant parameters are scaled by molecular weights or number of delocalizable p-electrons. The four-photon absorption cross-section of the most metal-rich dendrimer is an order of magnitude greater than the previous record value. |
| first_indexed | 2025-11-14T08:58:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-39360 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:58:25Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-393602017-09-13T14:23:35Z Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation Simpson, Peter Watson, L. Barlow, A. Wang, G. Cifuentes, M. Humphrey, M. Large increases in molecular two-photon absorption, the onset of measurable molecular three-photon absorption, and record molecular four-photon absorption in organic p-delocalizable frameworks are achieved by incorporation of bis(diphosphine)ruthenium units with alkynyl linkages. The resultant ruthenium alkynyl-containing dendrimers exhibit strong multiphoton absorption activity through the biological and telecommunications windows in the near-infrared region. The ligated ruthenium units significantly enhance solubility and introduce fully reversible redox switchability to the optical properties. Increasing the ruthenium content leads to substantial increases in multiphoton absorption properties without any loss of optical transparency. This significant improvement in multiphoton absorption performance by incorporation of the organometallic units into the organic p-framework is maintained when the relevant parameters are scaled by molecular weights or number of delocalizable p-electrons. The four-photon absorption cross-section of the most metal-rich dendrimer is an order of magnitude greater than the previous record value. 2016 Journal Article http://hdl.handle.net/20.500.11937/39360 10.1002/anie.201509223 restricted |
| spellingShingle | Simpson, Peter Watson, L. Barlow, A. Wang, G. Cifuentes, M. Humphrey, M. Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation |
| title | Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation |
| title_full | Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation |
| title_fullStr | Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation |
| title_full_unstemmed | Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation |
| title_short | Record Multiphoton Absorption Cross-Sections by Dendrimer Organometalation |
| title_sort | record multiphoton absorption cross-sections by dendrimer organometalation |
| url | http://hdl.handle.net/20.500.11937/39360 |