The synthesis, photophysical and dielectric properties of ball-type dinuclear zinc phthalocyanine

Mevlüde Canlca; Ahmet Altndal; Tebello Nyokong

doi:10.1142/S1088424612500836

The synthesis, photophysical and dielectric properties of ball-type dinuclear zinc phthalocyanine

Mevlüde Canlca
, Ahmet Altndal
, Tebello Nyokong^*

^*Bu çalışma için yazışmadan sorumlu yazar

Yildiz Technical University
Rhodes University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

18 Atıf (Scopus)

Özet

The synthesis of ball-type dinuclear Zn(II) phthalocyanine containing four 4,4′-(9H-fluorene-9,9-diyl)diphenol substituents at the non-peripheral position is presented. The structure of the synthesized compound was characterized using elemental analyzes, and UV-vis, FT-IR, ¹H NMR and mass spectroscopies. The Φ_F value was 0.16 and Φ_T value was 0.72. The complex showed reasonably long triplet lifetimes with τ_T 7210 μs in DMSO. The frequency and temperature dependence of the dielectric properties of ZnPc were also investigated in the frequency range of 40-10⁵ Hz and in the temperature range of 300-440 °K. It has been observed that both dielectric constant ε′ and dielectric loss ε″ decrease with the rise in frequency as they increase with the rise in temperature. The decrease in ε′ with increasing frequency is attributed to the fact that as the frequency increases, the polarizability contribution from orientation sources decreases and finally disappears.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	826-832
Sayfa sayısı	7
Dergi	Journal of Porphyrins and Phthalocyanines
Hacim	16
Basın numarası	7-8
DOI'lar	https://doi.org/10.1142/S1088424612500836
Yayın durumu	Yayınlandı - 2012
Harici olarak yayınlandı	Evet

Finansman

This work was supported by the Department of Science and Technology (DST) and National Research Foundation (NRF), South Africa through DST/NRF South African Research Chairs Initiative for Professor of Medicinal Chemistry and Nanotechnology and Rhodes University.

Finansörler
DST/NRF
National Research Foundation
Rhodes University
Department of Science and Technology, Government of Kerala

Belgeye Erişim

10.1142/S1088424612500836

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "The synthesis, photophysical and dielectric properties of ball-type dinuclear zinc phthalocyanine",

abstract = "The synthesis of ball-type dinuclear Zn(II) phthalocyanine containing four 4,4′-(9H-fluorene-9,9-diyl)diphenol substituents at the non-peripheral position is presented. The structure of the synthesized compound was characterized using elemental analyzes, and UV-vis, FT-IR, 1H NMR and mass spectroscopies. The ΦF value was 0.16 and ΦT value was 0.72. The complex showed reasonably long triplet lifetimes with τT 7210 μs in DMSO. The frequency and temperature dependence of the dielectric properties of ZnPc were also investigated in the frequency range of 40-105 Hz and in the temperature range of 300-440 °K. It has been observed that both dielectric constant ε′ and dielectric loss ε″ decrease with the rise in frequency as they increase with the rise in temperature. The decrease in ε′ with increasing frequency is attributed to the fact that as the frequency increases, the polarizability contribution from orientation sources decreases and finally disappears.",

keywords = "Zn ball-type phthalocyanine, dielectric properties, non-peripheral phthalocyanine, photodynamic therapy, triplet quantum yield",

author = "Mevl{\"u}de Canlca and Ahmet Altndal and Tebello Nyokong",

year = "2012",

doi = "10.1142/S1088424612500836",

language = "English",

volume = "16",

pages = "826--832",

journal = "Journal of Porphyrins and Phthalocyanines",

issn = "1088-4246",

publisher = "World Scientific",

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TY - JOUR

T1 - The synthesis, photophysical and dielectric properties of ball-type dinuclear zinc phthalocyanine

AU - Canlca, Mevlüde

AU - Altndal, Ahmet

AU - Nyokong, Tebello

PY - 2012

Y1 - 2012

N2 - The synthesis of ball-type dinuclear Zn(II) phthalocyanine containing four 4,4′-(9H-fluorene-9,9-diyl)diphenol substituents at the non-peripheral position is presented. The structure of the synthesized compound was characterized using elemental analyzes, and UV-vis, FT-IR, 1H NMR and mass spectroscopies. The ΦF value was 0.16 and ΦT value was 0.72. The complex showed reasonably long triplet lifetimes with τT 7210 μs in DMSO. The frequency and temperature dependence of the dielectric properties of ZnPc were also investigated in the frequency range of 40-105 Hz and in the temperature range of 300-440 °K. It has been observed that both dielectric constant ε′ and dielectric loss ε″ decrease with the rise in frequency as they increase with the rise in temperature. The decrease in ε′ with increasing frequency is attributed to the fact that as the frequency increases, the polarizability contribution from orientation sources decreases and finally disappears.

AB - The synthesis of ball-type dinuclear Zn(II) phthalocyanine containing four 4,4′-(9H-fluorene-9,9-diyl)diphenol substituents at the non-peripheral position is presented. The structure of the synthesized compound was characterized using elemental analyzes, and UV-vis, FT-IR, 1H NMR and mass spectroscopies. The ΦF value was 0.16 and ΦT value was 0.72. The complex showed reasonably long triplet lifetimes with τT 7210 μs in DMSO. The frequency and temperature dependence of the dielectric properties of ZnPc were also investigated in the frequency range of 40-105 Hz and in the temperature range of 300-440 °K. It has been observed that both dielectric constant ε′ and dielectric loss ε″ decrease with the rise in frequency as they increase with the rise in temperature. The decrease in ε′ with increasing frequency is attributed to the fact that as the frequency increases, the polarizability contribution from orientation sources decreases and finally disappears.

KW - Zn ball-type phthalocyanine

KW - dielectric properties

KW - non-peripheral phthalocyanine

KW - photodynamic therapy

KW - triplet quantum yield

UR - https://www.scopus.com/pages/publications/84864742766

U2 - 10.1142/S1088424612500836

DO - 10.1142/S1088424612500836

M3 - Article

AN - SCOPUS:84864742766

SN - 1088-4246

VL - 16

SP - 826

EP - 832

JO - Journal of Porphyrins and Phthalocyanines

JF - Journal of Porphyrins and Phthalocyanines

IS - 7-8

ER -

The synthesis, photophysical and dielectric properties of ball-type dinuclear zinc phthalocyanine

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

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