Influence of ligand donor-acceptor properties on the structure, optical, and electrochemical characteristics of Ir(III) complexes with cyclometallated 2-phenylbenzotiazole

E. A. Katlenok, A. A. Zolotarev, K. P. Balashev

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Abstract

The cis-C,C-structure of a series of cyclometallated Ir(III) complexes with 2-phenylbenzotiazole was determined by the methods of X-ray diffraction (XRD) analysis, H-1, C-13, P-31 NMR, and IR spectroscopy. Long-wave absorption bands, phosphorescence, and processes of electrochemical oxidation and reduction of the complexes were assigned to the transfer of electrons presumably located on d (pi) and pi* orbitals of cyclometallated 2-phenylbenzotiazole. The decrease in donor and acceptor properties of the ligands leads to the blue shift of absorption spectra and phosphorescence and to the anodic shift of oxidation and reduction potentials of the complexes.

Original languageEnglish
Pages (from-to)2508-2514
Number of pages7
JournalRussian Journal of General Chemistry
Volume86
Issue number11
DOIs
Publication statusPublished - 12 Dec 2016

Cite this

@article{1427ff7bcedb417da7c7e5071eac71d1,
title = "Influence of ligand donor-acceptor properties on the structure, optical, and electrochemical characteristics of Ir(III) complexes with cyclometallated 2-phenylbenzotiazole",
abstract = "The cis-C,C-structure of a series of cyclometallated Ir(III) complexes with 2-phenylbenzotiazole was determined by the methods of X-ray diffraction (XRD) analysis, H-1, C-13, P-31 NMR, and IR spectroscopy. Long-wave absorption bands, phosphorescence, and processes of electrochemical oxidation and reduction of the complexes were assigned to the transfer of electrons presumably located on d (pi) and pi* orbitals of cyclometallated 2-phenylbenzotiazole. The decrease in donor and acceptor properties of the ligands leads to the blue shift of absorption spectra and phosphorescence and to the anodic shift of oxidation and reduction potentials of the complexes.",
keywords = "cyclometallated Ir(III) complexes, molecular structure, X-ray diffraction analysis, H-1, C-13, P-31 NMR, optical and electrochemical characteristics, IRIDIUM",
author = "Katlenok, {E. A.} and Zolotarev, {A. A.} and Balashev, {K. P.}",
year = "2016",
month = "12",
day = "12",
doi = "10.1134/S1070363216110177",
language = "Английский",
volume = "86",
pages = "2508--2514",
journal = "Russian Journal of General Chemistry",
issn = "1070-3632",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "11",

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TY - JOUR

T1 - Influence of ligand donor-acceptor properties on the structure, optical, and electrochemical characteristics of Ir(III) complexes with cyclometallated 2-phenylbenzotiazole

AU - Katlenok, E. A.

AU - Zolotarev, A. A.

AU - Balashev, K. P.

PY - 2016/12/12

Y1 - 2016/12/12

N2 - The cis-C,C-structure of a series of cyclometallated Ir(III) complexes with 2-phenylbenzotiazole was determined by the methods of X-ray diffraction (XRD) analysis, H-1, C-13, P-31 NMR, and IR spectroscopy. Long-wave absorption bands, phosphorescence, and processes of electrochemical oxidation and reduction of the complexes were assigned to the transfer of electrons presumably located on d (pi) and pi* orbitals of cyclometallated 2-phenylbenzotiazole. The decrease in donor and acceptor properties of the ligands leads to the blue shift of absorption spectra and phosphorescence and to the anodic shift of oxidation and reduction potentials of the complexes.

AB - The cis-C,C-structure of a series of cyclometallated Ir(III) complexes with 2-phenylbenzotiazole was determined by the methods of X-ray diffraction (XRD) analysis, H-1, C-13, P-31 NMR, and IR spectroscopy. Long-wave absorption bands, phosphorescence, and processes of electrochemical oxidation and reduction of the complexes were assigned to the transfer of electrons presumably located on d (pi) and pi* orbitals of cyclometallated 2-phenylbenzotiazole. The decrease in donor and acceptor properties of the ligands leads to the blue shift of absorption spectra and phosphorescence and to the anodic shift of oxidation and reduction potentials of the complexes.

KW - cyclometallated Ir(III) complexes

KW - molecular structure

KW - X-ray diffraction analysis

KW - H-1

KW - C-13

KW - P-31 NMR

KW - optical and electrochemical characteristics

KW - IRIDIUM

U2 - 10.1134/S1070363216110177

DO - 10.1134/S1070363216110177

M3 - статья

VL - 86

SP - 2508

EP - 2514

JO - Russian Journal of General Chemistry

JF - Russian Journal of General Chemistry

SN - 1070-3632

IS - 11

ER -