Back to Search
Start Over
Unexpected High Second-Order Nonlinear Optical Activity of Metal Complexes with Three-Branched Hexadentate 2,2'-Bipyridine Ligands.
- Source :
-
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2018 Oct 09; Vol. 24 (56), pp. 14901-14905. Date of Electronic Publication: 2018 Sep 11. - Publication Year :
- 2018
-
Abstract
- Two hexadentate bipyridine ligands and their Ru <superscript>II</superscript> and Ni <superscript>II</superscript> complexes were prepared. The helical alignment of the three electron-donor-π-bridge-electron-acceptor (d-π-A) single-strands with bundle architecture in cooperation with the metal center can strongly enhance the nonlinear optical (NLO) properties. The complexation of the novel cage-type hexadentate ligands with a paramagnetic Ni <superscript>II</superscript> -core almost doubles the β <subscript>HRS</subscript> values compared with the corresponding diamagnetic Ru <superscript>II</superscript> complexes. The hyper-Rayleigh scattering (HRS) was performed with a highly sensitive setup for simultaneous discrimination between multi-photon fluorescence and the molecular first hyperpolarizability.<br /> (© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Details
- Language :
- English
- ISSN :
- 1521-3765
- Volume :
- 24
- Issue :
- 56
- Database :
- MEDLINE
- Journal :
- Chemistry (Weinheim an der Bergstrasse, Germany)
- Publication Type :
- Academic Journal
- Accession number :
- 29989225
- Full Text :
- https://doi.org/10.1002/chem.201801189