Synthesis, characterization and near-infrared photoluminescent studies of diethyl malonate appended mono-porphyrinate lanthanide complexes

Hong Shan He; Zhi Xin Zhao; Rick W K WONG; King Fai Li; Jian Xin Meng; Kok Wai CHEAH

doi:10.1039/b208987b

Synthesis, characterization and near-infrared photoluminescent studies of diethyl malonate appended mono-porphyrinate lanthanide complexes

Hong Shan He, Zhi Xin Zhao, Rick W K WONG^*, King Fai Li, Jian Xin Meng, Kok Wai CHEAH

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

32 Citations (Scopus)

Abstract

A new unsymmetrical diethyl malonate appended porphyrin and its Yb³⁺, Er³⁺ and Nd³⁺ complexes were prepared and characterized by elemental analysis, NMR, IR, UV-visible and mass spectral methods. The results revealed that the porphyrinate behaved as a tri-deprotonated hexadentate ligand with the appended diethyl malonate group coordinated to the lanthanide ion as an anion. Photoluminescent studies showed that the porphyrin ring transferred the absorbed visible light to the metal ions, which led to emission characteristic of the lanthanide ions in the near-infrared region. The factors affecting the emission intensity were also investigated.

Original language	English
Pages (from-to)	980-986
Number of pages	7
Journal	Dalton Transactions
Issue number	5
DOIs	https://doi.org/10.1039/b208987b
Publication status	Published - 25 Feb 2003

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title = "Synthesis, characterization and near-infrared photoluminescent studies of diethyl malonate appended mono-porphyrinate lanthanide complexes",

abstract = "A new unsymmetrical diethyl malonate appended porphyrin and its Yb3+, Er3+ and Nd3+ complexes were prepared and characterized by elemental analysis, NMR, IR, UV-visible and mass spectral methods. The results revealed that the porphyrinate behaved as a tri-deprotonated hexadentate ligand with the appended diethyl malonate group coordinated to the lanthanide ion as an anion. Photoluminescent studies showed that the porphyrin ring transferred the absorbed visible light to the metal ions, which led to emission characteristic of the lanthanide ions in the near-infrared region. The factors affecting the emission intensity were also investigated.",

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T1 - Synthesis, characterization and near-infrared photoluminescent studies of diethyl malonate appended mono-porphyrinate lanthanide complexes

AU - He, Hong Shan

AU - Zhao, Zhi Xin

AU - WONG, Rick W K

AU - Li, King Fai

AU - Meng, Jian Xin

AU - CHEAH, Kok Wai

PY - 2003/2/25

Y1 - 2003/2/25

N2 - A new unsymmetrical diethyl malonate appended porphyrin and its Yb3+, Er3+ and Nd3+ complexes were prepared and characterized by elemental analysis, NMR, IR, UV-visible and mass spectral methods. The results revealed that the porphyrinate behaved as a tri-deprotonated hexadentate ligand with the appended diethyl malonate group coordinated to the lanthanide ion as an anion. Photoluminescent studies showed that the porphyrin ring transferred the absorbed visible light to the metal ions, which led to emission characteristic of the lanthanide ions in the near-infrared region. The factors affecting the emission intensity were also investigated.

AB - A new unsymmetrical diethyl malonate appended porphyrin and its Yb3+, Er3+ and Nd3+ complexes were prepared and characterized by elemental analysis, NMR, IR, UV-visible and mass spectral methods. The results revealed that the porphyrinate behaved as a tri-deprotonated hexadentate ligand with the appended diethyl malonate group coordinated to the lanthanide ion as an anion. Photoluminescent studies showed that the porphyrin ring transferred the absorbed visible light to the metal ions, which led to emission characteristic of the lanthanide ions in the near-infrared region. The factors affecting the emission intensity were also investigated.

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U2 - 10.1039/b208987b

DO - 10.1039/b208987b

M3 - Journal article

AN - SCOPUS:36048974549

SN - 1477-9226

SP - 980

EP - 986

JO - Dalton Transactions

JF - Dalton Transactions

IS - 5

ER -

Synthesis, characterization and near-infrared photoluminescent studies of diethyl malonate appended mono-porphyrinate lanthanide complexes

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