Jump to main content
Jump to site search

Issue 26, 2017
Previous Article Next Article

Photoswitchable and pH responsive organoplatinum(ii) complexes with azopyridine ligands

Author affiliations

Abstract

Several platinum(II) complexes with ligands containing azo groups have been prepared and structurally characterised, and their photoswitching between trans and cis azo group isomers has been studied. The azo groups in the cationic complexes [PtMe(bipy)(4-NC5H4-N[double bond, length as m-dash]N-4-C6H4X)][PF6], X = H, OH or NMe2, and in the dicationic complex [Pt(bipy)(4-H2NC6H4-N[double bond, length as m-dash]N-C6H5)2][OTf]2 undergo trans to cis photoswitching on irradiation at 365 nm. The complex [PtMe(bipy)(4-NC5H4-N[double bond, length as m-dash]N-4-C6H4NMe)2][PF6] also exhibits a reversible halochromic effect on protonation to give the dicationic complex [PtMe(bipy)(4-NC5H4-NH[double bond, length as m-dash]N-4-C6H4NMe2]2+. The nature of the frontier orbitals in the platinum(II) complexes depends on the charge on the complex and on the degree of metal–ligand π-bonding.

Graphical abstract: Photoswitchable and pH responsive organoplatinum(ii) complexes with azopyridine ligands

Back to tab navigation

Supplementary files

Article information


Submitted
10 Apr 2017
Accepted
31 May 2017
First published
02 Jun 2017

Dalton Trans., 2017,46, 8405-8414
Article type
Paper

Photoswitchable and pH responsive organoplatinum(II) complexes with azopyridine ligands

M. E. Moustafa, M. S. McCready, P. D. Boyle and R. J. Puddephatt, Dalton Trans., 2017, 46, 8405
DOI: 10.1039/C7DT01290J

Social activity

Search articles by author

Spotlight

Advertisements