Monomeric and tetrameric mercury(II) complexes with iodo and N2O2/N3O ligands: Structure and blue luminescence

Minji Cho; Hye Jin Shin; Dewi K.A. Kusumahastuti; Hyeonuk Yeo; Kil Sik Min

doi:10.1016/j.ica.2020.119789

Monomeric and tetrameric mercury(II) complexes with iodo and N2O2/N3O ligands: Structure and blue luminescence

Minji Cho, Hye Jin Shin, Dewi K.A. Kusumahastuti, Hyeonuk Yeo, Kil Sik Min

Kyungpook National University

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

6 Scopus citations

Abstract

The reaction of mercury(II) iodide and potential tetradentate ligand N-(2-pyridylmethyl)iminodiethanol (H₂pmide) or N,N-bis(2-pyridylmethyl)-2-aminoethanol (bpaeOH) leads to the isolation of monomeric complex [Hg(H₂pmide)(I)₂] (1) and tetrameric {[Hg₂(bpaeOH)₂][Hg₂I₇]I} (2). The crystal structures of 1 and 2 have been characterized by single crystal X-ray crystallography. In mononuclear neutral complex 1, the Hg(II) ion is bonded with one H₂pmide species and two iodide anions as a distorted square pyramidal structure. 2 is a tetranuclear neutral complex that is composed of two [Hg(bpaeOH)]²⁺ cations and one [Hg₂I₇]³⁻ anion as well as additional I⁻ anion. The [Hg₂I₇]³⁻ species connected to both the [Hg(bpaeOH)]²⁺ and [Hg(bpaeOH)(I)]⁺ units on the opposite side, which gives rise to the tetranuclear structure. 1 shows strong fluorescent emission at 412 nm with a blue color in methanol solution, while 2 displays very weak emission at 467 nm in the solid state. Particularly, in the case of 1, quantum yield is ca. 8.1% and fluorescence decay lifetime is ca. 1.95 ns.

Original language	English
Article number	119789
Journal	Inorganica Chimica Acta
Volume	511
DOIs	https://doi.org/10.1016/j.ica.2020.119789
State	Published - 1 Oct 2020

Keywords

Coordination complex
Crystal structure
Ligand
Mercury(II)
Photoluminescence

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title = "Monomeric and tetrameric mercury(II) complexes with iodo and N2O2/N3O ligands: Structure and blue luminescence",

abstract = "The reaction of mercury(II) iodide and potential tetradentate ligand N-(2-pyridylmethyl)iminodiethanol (H2pmide) or N,N-bis(2-pyridylmethyl)-2-aminoethanol (bpaeOH) leads to the isolation of monomeric complex [Hg(H2pmide)(I)2] (1) and tetrameric {[Hg2(bpaeOH)2][Hg2I7]I} (2). The crystal structures of 1 and 2 have been characterized by single crystal X-ray crystallography. In mononuclear neutral complex 1, the Hg(II) ion is bonded with one H2pmide species and two iodide anions as a distorted square pyramidal structure. 2 is a tetranuclear neutral complex that is composed of two [Hg(bpaeOH)]2+ cations and one [Hg2I7]3− anion as well as additional I− anion. The [Hg2I7]3− species connected to both the [Hg(bpaeOH)]2+ and [Hg(bpaeOH)(I)]+ units on the opposite side, which gives rise to the tetranuclear structure. 1 shows strong fluorescent emission at 412 nm with a blue color in methanol solution, while 2 displays very weak emission at 467 nm in the solid state. Particularly, in the case of 1, quantum yield is ca. 8.1% and fluorescence decay lifetime is ca. 1.95 ns.",

keywords = "Coordination complex, Crystal structure, Ligand, Mercury(II), Photoluminescence",

author = "Minji Cho and Shin, {Hye Jin} and Kusumahastuti, {Dewi K.A.} and Hyeonuk Yeo and Min, {Kil Sik}",

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doi = "10.1016/j.ica.2020.119789",

language = "English",

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T1 - Monomeric and tetrameric mercury(II) complexes with iodo and N2O2/N3O ligands

T2 - Structure and blue luminescence

AU - Cho, Minji

AU - Shin, Hye Jin

AU - Kusumahastuti, Dewi K.A.

AU - Yeo, Hyeonuk

AU - Min, Kil Sik

PY - 2020/10/1

Y1 - 2020/10/1

N2 - The reaction of mercury(II) iodide and potential tetradentate ligand N-(2-pyridylmethyl)iminodiethanol (H2pmide) or N,N-bis(2-pyridylmethyl)-2-aminoethanol (bpaeOH) leads to the isolation of monomeric complex [Hg(H2pmide)(I)2] (1) and tetrameric {[Hg2(bpaeOH)2][Hg2I7]I} (2). The crystal structures of 1 and 2 have been characterized by single crystal X-ray crystallography. In mononuclear neutral complex 1, the Hg(II) ion is bonded with one H2pmide species and two iodide anions as a distorted square pyramidal structure. 2 is a tetranuclear neutral complex that is composed of two [Hg(bpaeOH)]2+ cations and one [Hg2I7]3− anion as well as additional I− anion. The [Hg2I7]3− species connected to both the [Hg(bpaeOH)]2+ and [Hg(bpaeOH)(I)]+ units on the opposite side, which gives rise to the tetranuclear structure. 1 shows strong fluorescent emission at 412 nm with a blue color in methanol solution, while 2 displays very weak emission at 467 nm in the solid state. Particularly, in the case of 1, quantum yield is ca. 8.1% and fluorescence decay lifetime is ca. 1.95 ns.

AB - The reaction of mercury(II) iodide and potential tetradentate ligand N-(2-pyridylmethyl)iminodiethanol (H2pmide) or N,N-bis(2-pyridylmethyl)-2-aminoethanol (bpaeOH) leads to the isolation of monomeric complex [Hg(H2pmide)(I)2] (1) and tetrameric {[Hg2(bpaeOH)2][Hg2I7]I} (2). The crystal structures of 1 and 2 have been characterized by single crystal X-ray crystallography. In mononuclear neutral complex 1, the Hg(II) ion is bonded with one H2pmide species and two iodide anions as a distorted square pyramidal structure. 2 is a tetranuclear neutral complex that is composed of two [Hg(bpaeOH)]2+ cations and one [Hg2I7]3− anion as well as additional I− anion. The [Hg2I7]3− species connected to both the [Hg(bpaeOH)]2+ and [Hg(bpaeOH)(I)]+ units on the opposite side, which gives rise to the tetranuclear structure. 1 shows strong fluorescent emission at 412 nm with a blue color in methanol solution, while 2 displays very weak emission at 467 nm in the solid state. Particularly, in the case of 1, quantum yield is ca. 8.1% and fluorescence decay lifetime is ca. 1.95 ns.

KW - Coordination complex

KW - Crystal structure

KW - Ligand

KW - Mercury(II)

KW - Photoluminescence

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DO - 10.1016/j.ica.2020.119789

M3 - Article

AN - SCOPUS:85086357214

SN - 0020-1693

VL - 511

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

M1 - 119789

ER -

Monomeric and tetrameric mercury(II) complexes with iodo and N2O2/N3O ligands: Structure and blue luminescence

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Keywords

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