On the Role of Chalcogen Donor Atoms in Diimine-Dichalcogenolate PtII SONLO Chromophores: Is It Worth Replacing Sulfur with Selenium?

Two new diimine‐diselenolate PtII chromophores [Pt(bipy)(Me‐dset)] (1) and [Pt(phen)(Me‐dset)] (2) (Me‐dset2– = N‐methyl‐2‐thioxothiazoline‐4,5‐diselenolate) were synthesized and characterized. The effect of replacing sulfur with selenium was investigated by comparing the UV/Vis spectroscopic and el...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2015-11, Vol.2015 (31), p.5163-5170
Main Authors: Pintus, Anna, Aragoni, M. Carla, Isaia, Francesco, Lippolis, Vito, Lorcy, Dominique, Slawin, Alexandra M. Z., Woollins, J. Derek, Arca, Massimiliano
Format: Article
Language:English
Subjects:
Atoms & subatomic particles
Density functional calculations
Diimine
Diselenolate
Nonlinear optics
Selenium
Solvatochromism
Sulfur
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Summary:Two new diimine‐diselenolate PtII chromophores [Pt(bipy)(Me‐dset)] (1) and [Pt(phen)(Me‐dset)] (2) (Me‐dset2– = N‐methyl‐2‐thioxothiazoline‐4,5‐diselenolate) were synthesized and characterized. The effect of replacing sulfur with selenium was investigated by comparing the UV/Vis spectroscopic and electrochemical properties of 1 and 2 with those of the corresponding sulfur analogues, [Pt(bipy)(Me‐dmet)] (3) and [Pt(phen)(Me‐dmet)] (4), with a particular focus on their linear and nonlinear optical properties. The effect of replacing sulfur with selenium as the donor atoms in the class of SONLO chromophores [Pt(NN)(EE)] (EE = N‐methyl‐2‐thioxothiazoline‐4,5‐dichalcogenolate; NN = bipy, phen) was investigated by comparatively investigating their UV/Vis spectroscopic, electrochemical, and SONLO properties.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201500777