Synthesis and Properties of New Phosphorescent Red Light-Excitable Platinum(II) and Palladium(II) Complexes with Schiff Bases for Oxygen Sensing and Triplet-Triplet Annihilation-Based Upconversion

Sergey Borisov; Robert Saf; Roland Fischer; Ingo Klimant

doi:10.1021/ic301440k

Synthesis and Properties of New Phosphorescent Red Light-Excitable Platinum(II) and Palladium(II) Complexes with Schiff Bases for Oxygen Sensing and Triplet-Triplet Annihilation-Based Upconversion

Sergey Borisov^*, Robert Saf, Roland Fischer, Ingo Klimant

^*Corresponding author for this work

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Abstract

New Pt(II) and Pd(II) complexes with donor–acceptor Schiff bases are conveniently prepared in only two steps. The complexes efficiently absorb in the red part of the spectrum (ε > 105 M–1 cm–1) and show moderate to strong room-temperature phosphorescence in the near-infrared (NIR) region. Particularly, Pt(II) complexes possess phosphorescence quantum yields (Φ) of ∼10%, but the emission of the respective Pd(II) complexes is less efficient (Φ ≈ 1%–2%). The complexes exhibit solvatochromic behavior, in which the absorption and emission spectra shift bathochromically in polar solvents. The Pt(II) complexes are embedded in polystyrene to produce oxygen-sensing materials. The Pd(II) and Pt(II) complexes are demonstrated to be efficient sensitizers in triplet–triplet annihilation-based upconversion systems.

Original language	English
Pages (from-to)	1206-1216
Journal	Inorganic Chemistry
Volume	52
Issue number	3
DOIs	https://doi.org/10.1021/ic301440k
Publication status	Published - 2013

Fields of Expertise

Advanced Materials Science

Treatment code (Nähere Zuordnung)

Basic - Fundamental (Grundlagenforschung)
Experimental

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10.1021/ic301440k

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Synthesis and Properties of New Phosphorescent Red Light-Excitable Platinum(II) and Palladium(II) Complexes with Schiff Bases for Oxygen Sensing and Triplet-Triplet Annihilation-Based Upconversion. / Borisov, Sergey ; Saf, Robert ; Fischer, Roland et al.
In: Inorganic Chemistry, Vol. 52, No. 3, 2013, p. 1206-1216.

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

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title = "Synthesis and Properties of New Phosphorescent Red Light-Excitable Platinum(II) and Palladium(II) Complexes with Schiff Bases for Oxygen Sensing and Triplet-Triplet Annihilation-Based Upconversion",

abstract = "New Pt(II) and Pd(II) complexes with donor–acceptor Schiff bases are conveniently prepared in only two steps. The complexes efficiently absorb in the red part of the spectrum (ε > 105 M–1 cm–1) and show moderate to strong room-temperature phosphorescence in the near-infrared (NIR) region. Particularly, Pt(II) complexes possess phosphorescence quantum yields (Φ) of ∼10%, but the emission of the respective Pd(II) complexes is less efficient (Φ ≈ 1%–2%). The complexes exhibit solvatochromic behavior, in which the absorption and emission spectra shift bathochromically in polar solvents. The Pt(II) complexes are embedded in polystyrene to produce oxygen-sensing materials. The Pd(II) and Pt(II) complexes are demonstrated to be efficient sensitizers in triplet–triplet annihilation-based upconversion systems.",

author = "Sergey Borisov and Robert Saf and Roland Fischer and Ingo Klimant",

year = "2013",

doi = "10.1021/ic301440k",

language = "English",

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journal = "Inorganic Chemistry",

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TY - JOUR

T1 - Synthesis and Properties of New Phosphorescent Red Light-Excitable Platinum(II) and Palladium(II) Complexes with Schiff Bases for Oxygen Sensing and Triplet-Triplet Annihilation-Based Upconversion

AU - Borisov, Sergey

AU - Saf, Robert

AU - Fischer, Roland

AU - Klimant, Ingo

PY - 2013

Y1 - 2013

N2 - New Pt(II) and Pd(II) complexes with donor–acceptor Schiff bases are conveniently prepared in only two steps. The complexes efficiently absorb in the red part of the spectrum (ε > 105 M–1 cm–1) and show moderate to strong room-temperature phosphorescence in the near-infrared (NIR) region. Particularly, Pt(II) complexes possess phosphorescence quantum yields (Φ) of ∼10%, but the emission of the respective Pd(II) complexes is less efficient (Φ ≈ 1%–2%). The complexes exhibit solvatochromic behavior, in which the absorption and emission spectra shift bathochromically in polar solvents. The Pt(II) complexes are embedded in polystyrene to produce oxygen-sensing materials. The Pd(II) and Pt(II) complexes are demonstrated to be efficient sensitizers in triplet–triplet annihilation-based upconversion systems.

AB - New Pt(II) and Pd(II) complexes with donor–acceptor Schiff bases are conveniently prepared in only two steps. The complexes efficiently absorb in the red part of the spectrum (ε > 105 M–1 cm–1) and show moderate to strong room-temperature phosphorescence in the near-infrared (NIR) region. Particularly, Pt(II) complexes possess phosphorescence quantum yields (Φ) of ∼10%, but the emission of the respective Pd(II) complexes is less efficient (Φ ≈ 1%–2%). The complexes exhibit solvatochromic behavior, in which the absorption and emission spectra shift bathochromically in polar solvents. The Pt(II) complexes are embedded in polystyrene to produce oxygen-sensing materials. The Pd(II) and Pt(II) complexes are demonstrated to be efficient sensitizers in triplet–triplet annihilation-based upconversion systems.

U2 - 10.1021/ic301440k

DO - 10.1021/ic301440k

M3 - Article

SN - 1520-510X

VL - 52

SP - 1206

EP - 1216

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 3

ER -

Synthesis and Properties of New Phosphorescent Red Light-Excitable Platinum(II) and Palladium(II) Complexes with Schiff Bases for Oxygen Sensing and Triplet-Triplet Annihilation-Based Upconversion

Abstract

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Treatment code (Nähere Zuordnung)

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