Influence of platinum metals on spectral and electrochemical characteristics of metallated azole luminophors

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Influence of platinum metals on spectral and electrochemical characteristics of metallated azole luminophors. / Katlenok, E. A.; Balashev, K. P.

In: Russian Journal of General Chemistry, Vol. 87, No. 2, 01.02.2017, p. 293-299.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{4b7da7387c574473a310e6e220e87f51,

title = "Influence of platinum metals on spectral and electrochemical characteristics of metallated azole luminophors",

abstract = "Spectral (1H NMR and IR), optical, and voltammetry parameters of Pd(II), Pt(II), Rh(III), and Ir(III) complexes with ethylenediamine and metallated azole luminophors [2-phenylbenzoxazole, 2-phenylbenzothiazole, 2,5-diphenyloxazole, 2-(1,1'-biphenyl)-4-yl]-5-phenyloxazole, and 2-(naphthalene-l-yl)benzothiazole] have been studied. The variation in spectroscopic parameters of the complexes is related to the increase in the efficiency of donor-acceptor interaction of Pt(II) and Ir(III) with the ligands as compared to Pd(II) and Rh(III). The correlation between the energy of the metal-ligand charge transfer bands and the difference between the single-electron oxidation and reduction potentials of the complexes is observed. Quenching of the fluorescence of metallated azoles and phosphorescence of the complexes in the visible region from the metal-modified intraligand excited state are related with the increase in the efficiency of the singlettriplet conversion due to the spin-orbital interaction in platinum metals.",

keywords = "H NMR spectroscopy, electrochemical characteristics, IR spectroscopy, Ir(III), metallated azole luminophor complex, optical properties, Pd(II), Pt(II), Rh(III)",

author = "Katlenok, {E. A.} and Balashev, {K. P.}",

note = "Publisher Copyright: {\textcopyright} 2017, Pleiades Publishing, Ltd.",

year = "2017",

month = feb,

day = "1",

doi = "10.1134/S1070363217020232",

language = "English",

volume = "87",

pages = "293--299",

journal = "Russian Journal of General Chemistry",

issn = "1070-3632",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "2",

}

RIS

TY - JOUR

T1 - Influence of platinum metals on spectral and electrochemical characteristics of metallated azole luminophors

AU - Katlenok, E. A.

AU - Balashev, K. P.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Spectral (1H NMR and IR), optical, and voltammetry parameters of Pd(II), Pt(II), Rh(III), and Ir(III) complexes with ethylenediamine and metallated azole luminophors [2-phenylbenzoxazole, 2-phenylbenzothiazole, 2,5-diphenyloxazole, 2-(1,1'-biphenyl)-4-yl]-5-phenyloxazole, and 2-(naphthalene-l-yl)benzothiazole] have been studied. The variation in spectroscopic parameters of the complexes is related to the increase in the efficiency of donor-acceptor interaction of Pt(II) and Ir(III) with the ligands as compared to Pd(II) and Rh(III). The correlation between the energy of the metal-ligand charge transfer bands and the difference between the single-electron oxidation and reduction potentials of the complexes is observed. Quenching of the fluorescence of metallated azoles and phosphorescence of the complexes in the visible region from the metal-modified intraligand excited state are related with the increase in the efficiency of the singlettriplet conversion due to the spin-orbital interaction in platinum metals.

AB - Spectral (1H NMR and IR), optical, and voltammetry parameters of Pd(II), Pt(II), Rh(III), and Ir(III) complexes with ethylenediamine and metallated azole luminophors [2-phenylbenzoxazole, 2-phenylbenzothiazole, 2,5-diphenyloxazole, 2-(1,1'-biphenyl)-4-yl]-5-phenyloxazole, and 2-(naphthalene-l-yl)benzothiazole] have been studied. The variation in spectroscopic parameters of the complexes is related to the increase in the efficiency of donor-acceptor interaction of Pt(II) and Ir(III) with the ligands as compared to Pd(II) and Rh(III). The correlation between the energy of the metal-ligand charge transfer bands and the difference between the single-electron oxidation and reduction potentials of the complexes is observed. Quenching of the fluorescence of metallated azoles and phosphorescence of the complexes in the visible region from the metal-modified intraligand excited state are related with the increase in the efficiency of the singlettriplet conversion due to the spin-orbital interaction in platinum metals.

KW - H NMR spectroscopy

KW - electrochemical characteristics

KW - IR spectroscopy

KW - Ir(III)

KW - metallated azole luminophor complex

KW - optical properties

KW - Pd(II)

KW - Pt(II)

KW - Rh(III)

UR - http://www.scopus.com/inward/record.url?scp=85017211221&partnerID=8YFLogxK

U2 - 10.1134/S1070363217020232

DO - 10.1134/S1070363217020232

M3 - Article

AN - SCOPUS:85017211221

VL - 87

SP - 293

EP - 299

JO - Russian Journal of General Chemistry

JF - Russian Journal of General Chemistry

SN - 1070-3632

IS - 2

ER -

ID: 100572037