This article is cited in 1 paper

Spectroscopy of condensed matter

Spectral-luminescence properties of cyclometallated Pd (II) complexes based on cinchophen methyl ester

R. I. Baichurin^a, I. T. Dulanova^a, A. M. Puzyk^b, M. V. Puzyk<sup>a

a</sup> Herzen State Pedagogical University of Russia, St. Petersburg
^b Saint Petersburg State University

Abstract: A procedure of synthesis of Pd (II) complexes with 2-phenylquinoline-4-carboxylic acid methyl ester: [PdMpqc($\mu$-Аc)]$_2$ and [PdEnMpqc] BF$_4$, where Mpqc is methyl 2-phenyl-4-quinolinecarboxylate ion, Ac – acetate ion, En – ethylenediamine, was developed. The composition and structure of the complexes obtained were established on the basis of IR and polynuclear NMR spectroscopy data, optical and physical properties were described on the basis of UV and fluorescence spectroscopy. The phosphorescence of Pd (II) complexes in the visible region was assigned to the radiative transition from the spin-forbidden intraligand electronically excited state $3(\pi-\pi)$ that is localized on the aromatic Mpqc system.

Keywords: Pd (II) complexes, methyl 2-phenyl-4-quinolinecarboxylate, NMR spectroscopy, spectral-luminescence properties.

Received: 30.04.2021
Revised: 22.07.2021
Accepted: 27.07.2021

DOI: 10.21883/OS.2021.11.51637.2253-21

 English version: Optics and Spectroscopy, 2022, 130:14, 2108–2133

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