A Pt(II) Complex with a PNN Type Ligand Dppmaphen Exhibits Selective, Reversible Vapor-Chromic Photoluminescence
The reaction of PtCl<sub>2</sub> with a PNN type ligand dppmaphen (N-(diphenylphosphanylmethyl)-2-amino-1,10-phenanthroline) yielded a new Pt(II) complex [Pt(dppmaphen)Cl]Cl·H<sub>2</sub>O (<b>1</b>). Upon excitation at 370 nm, compound <b>1</b> emits...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
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| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/13/5/170 |
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| Summary: | The reaction of PtCl<sub>2</sub> with a PNN type ligand dppmaphen (N-(diphenylphosphanylmethyl)-2-amino-1,10-phenanthroline) yielded a new Pt(II) complex [Pt(dppmaphen)Cl]Cl·H<sub>2</sub>O (<b>1</b>). Upon excitation at 370 nm, compound <b>1</b> emits yellow phosphorescence at 539 and 576 nm at room temperature. Exposure of compound <b>1</b> to MeOH vapor induces a shift in its emission to 645 nm, which can be attributed to the substitution of MeOH molecules for H<sub>2</sub>O, resulting in the disruption and reorganization of weak interactions in <b>1</b>. This response is selective for MeOH and, to a lesser extent, EtOH, the orange photoluminescence recovered in air. The emission change of <b>1</b> was reversible and visible to the naked eye. |
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| ISSN: | 2304-6740 |