Platinum(II) Complexes of Tridentate N∧N- ∧N -Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43920442" target="_blank" >RIV/60461373:22310/20:43920442 - isvavai.cz</a>
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/ejic.202000879" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/ejic.202000879</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ejic.202000879" target="_blank" >10.1002/ejic.202000879</a>

Result language
angličtina
Original language name
Platinum(II) Complexes of Tridentate N∧N- ∧N -Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties
Original language description
Five Pt(II) complexes are described in which the metal ion is bound to anionic (Formula presented.) -coordinating ligands. The central, deprotonated N atom is derived from an imide Ar−C(=O)−NH−C(=O)−Ar {PtL1–2Cl; Ar=pyridine or pyrimidine}, an amide py−C(=O)−NH−CH2−py {PtL3Cl}, or a hydrazide py−C(=O)−NH−N=CH−py {PtL4Cl}. The imide complexes PtL1–2Cl show no significant emission in solution but are modestly bright green/yellow phosphors in the solid state. PtL3Cl is weakly phosphorescent. PtL4Cl is formed as a mixture of isomers, bound through either the amido or imino nitrogen, the latter converting to the former upon absorption of light. Remarkably, the imino form displays fluorescence in solution, λ0,0=535 nm, whereas the amido shows phosphorescence, λ0,0=624 nm, τ=440 ns. It is highly unusual for two isomeric compounds to display emission from states of different spin multiplicity. The amido-bound PtL4Cl can act as a bidentate (Formula presented.) -coordinating ligand, demonstrated by the formation of bimetallic complexes with iridium(III) or ruthenium(II).
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)