Halogenated platinum porphyrins as sensing materials for luminescence-based oxygen sensors

Weekey Wai San Lee; Kwok Yin Wong; Xiang Ming Li; Yiu Bong Leung; Chi Shing Chan; Kin Shing Chan

doi:10.1039/jm9930301031

Halogenated platinum porphyrins as sensing materials for luminescence-based oxygen sensors

Weekey Wai San Lee, Kwok Yin Wong, Xiang Ming Li, Yiu Bong Leung, Chi Shing Chan, Kin Shing Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

43 Citations (Scopus)

Abstract

luminescent platinum porphyrins with halogen substituents on the meso-aryl and pyrrole rings Pt(TDCPP). Pt(TFMPP) and Pt(Br8TMP) [TDCPP = meso-tetra(2,6-dichlorophenyl)porphyrin, TFMPP = meso-tetra(3,5- bis(trifluoromethyl)phenyl)porphyrin, Br8TMP = meso-tetramesityl- β-octabromoporphyrin] were immobilized inside silicone rubber films and tested as sensors for optical measurement of oxygen concentrations in the gas phase. The presence of halogenated substituents was found to increase the photostability of the metalloporphyrins. On the other hand, heavy halogen atoms such as bromine cause a decrease in the quantum yield and lifetime. The films have a moderately fast response towards changes in oxygen concentration and are immune to common gaseous interferents such as chlorine, sulfur dioxide and halothane at concentrations well above those normally encountered.

Original language	English
Pages (from-to)	1031-1035
Number of pages	5
Journal	Journal of Materials Chemistry
Volume	3
Issue number	10
DOIs	https://doi.org/10.1039/jm9930301031
Publication status	Published - 1 Jan 1993

Keywords

Metalloporphyrin
Porphyrin
Sensor

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

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10.1039/jm9930301031

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title = "Halogenated platinum porphyrins as sensing materials for luminescence-based oxygen sensors",

abstract = "luminescent platinum porphyrins with halogen substituents on the meso-aryl and pyrrole rings Pt(TDCPP). Pt(TFMPP) and Pt(Br8TMP) [TDCPP = meso-tetra(2,6-dichlorophenyl)porphyrin, TFMPP = meso-tetra(3,5- bis(trifluoromethyl)phenyl)porphyrin, Br8TMP = meso-tetramesityl- β-octabromoporphyrin] were immobilized inside silicone rubber films and tested as sensors for optical measurement of oxygen concentrations in the gas phase. The presence of halogenated substituents was found to increase the photostability of the metalloporphyrins. On the other hand, heavy halogen atoms such as bromine cause a decrease in the quantum yield and lifetime. The films have a moderately fast response towards changes in oxygen concentration and are immune to common gaseous interferents such as chlorine, sulfur dioxide and halothane at concentrations well above those normally encountered.",

keywords = "Metalloporphyrin, Porphyrin, Sensor",

author = "Lee, {Weekey Wai San} and Wong, {Kwok Yin} and Li, {Xiang Ming} and Leung, {Yiu Bong} and Chan, {Chi Shing} and Chan, {Kin Shing}",

year = "1993",

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doi = "10.1039/jm9930301031",

language = "English",

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T1 - Halogenated platinum porphyrins as sensing materials for luminescence-based oxygen sensors

AU - Lee, Weekey Wai San

AU - Wong, Kwok Yin

AU - Li, Xiang Ming

AU - Leung, Yiu Bong

AU - Chan, Chi Shing

AU - Chan, Kin Shing

PY - 1993/1/1

Y1 - 1993/1/1

N2 - luminescent platinum porphyrins with halogen substituents on the meso-aryl and pyrrole rings Pt(TDCPP). Pt(TFMPP) and Pt(Br8TMP) [TDCPP = meso-tetra(2,6-dichlorophenyl)porphyrin, TFMPP = meso-tetra(3,5- bis(trifluoromethyl)phenyl)porphyrin, Br8TMP = meso-tetramesityl- β-octabromoporphyrin] were immobilized inside silicone rubber films and tested as sensors for optical measurement of oxygen concentrations in the gas phase. The presence of halogenated substituents was found to increase the photostability of the metalloporphyrins. On the other hand, heavy halogen atoms such as bromine cause a decrease in the quantum yield and lifetime. The films have a moderately fast response towards changes in oxygen concentration and are immune to common gaseous interferents such as chlorine, sulfur dioxide and halothane at concentrations well above those normally encountered.

AB - luminescent platinum porphyrins with halogen substituents on the meso-aryl and pyrrole rings Pt(TDCPP). Pt(TFMPP) and Pt(Br8TMP) [TDCPP = meso-tetra(2,6-dichlorophenyl)porphyrin, TFMPP = meso-tetra(3,5- bis(trifluoromethyl)phenyl)porphyrin, Br8TMP = meso-tetramesityl- β-octabromoporphyrin] were immobilized inside silicone rubber films and tested as sensors for optical measurement of oxygen concentrations in the gas phase. The presence of halogenated substituents was found to increase the photostability of the metalloporphyrins. On the other hand, heavy halogen atoms such as bromine cause a decrease in the quantum yield and lifetime. The films have a moderately fast response towards changes in oxygen concentration and are immune to common gaseous interferents such as chlorine, sulfur dioxide and halothane at concentrations well above those normally encountered.

KW - Metalloporphyrin

KW - Porphyrin

KW - Sensor

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DO - 10.1039/jm9930301031

M3 - Journal article

SN - 0959-9428

VL - 3

SP - 1031

EP - 1035

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 10

ER -

Halogenated platinum porphyrins as sensing materials for luminescence-based oxygen sensors

Abstract

Keywords

ASJC Scopus subject areas

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