Heterochiral vs. homochiral linkage of emissive iridium(III) complexes with D-penicillaminate: Drastic change in emission induced by silver(I) linkage

Keisuke Saito; Yuta Sarukawa; Kiyoshi Tsuge; Takumi Konno

doi:10.1002/ejic.201000689

Heterochiral vs. homochiral linkage of emissive iridium(III) complexes with D-penicillaminate: Drastic change in emission induced by silver(I) linkage

Keisuke Saito, Yuta Sarukawa, Kiyoshi Tsuge, Takumi Konno^*

^*Corresponding author for this work

Department of Chemistry

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

15 Scopus citations

Abstract

Reactions of [{Ir(ppy or ppy-CF₃)₂} ₂(μ-Cl)₂] {Hppy = 2-phenylpyridine, Hppy-CF₃ = 2-[3,5-bis(trifluoromethyl)phenyl]-pyridine} with d-penicillamine (D-H ₂pen) afforded emissive IrIII mononuclear complexes [Ir(ppy or ppy-CF₃)₂(D-Hpen-N,S)] as a 1:1 mixture of the Δ_D/Δ_D isomers. These complexes were converted into Ir^IIIAg^IIr^III trinuclear structures in [Ag{Ir(D-pen-N,S)(ppy or ppy-CF₃)₂}{Ir(D-Hpen-N,S)(ppy or ppy-CF₃)₂}] by treatment with AgNO₃, which led to a drastic blueshift of the emission bands. Whereas the (ppy)Ir ^IIIAg^IIr^III complex produced the heterochiral Δ_DΔ_D isomer, the ppy-CF3 complex gave the homochiral Δ_DΔ_D and Δ_DΔ _D isomers that could completely be separated by crystallization. It was found that the quantum efficiency of the emission band for the Δ_DΔ_D isomer is much lower than that for the Δ_DΔ_D isomer.

Original language	English
Pages (from-to)	3909-3913
Number of pages	5
Journal	European Journal of Inorganic Chemistry
Issue number	25
DOIs	https://doi.org/10.1002/ejic.201000689
State	Published - 2010/09

Keywords

Chiral resolution
Iridium
Luminescence
S ligands
Substituent effects

ASJC Scopus subject areas

Inorganic Chemistry

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10.1002/ejic.201000689

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@article{4088029307d9490789bcd7cedfb1b2b5,

title = "Heterochiral vs. homochiral linkage of emissive iridium(III) complexes with D-penicillaminate: Drastic change in emission induced by silver(I) linkage",

abstract = "Reactions of [{Ir(ppy or ppy-CF3)2} 2(μ-Cl)2] {Hppy = 2-phenylpyridine, Hppy-CF3 = 2-[3,5-bis(trifluoromethyl)phenyl]-pyridine} with d-penicillamine (D-H 2pen) afforded emissive IrIII mononuclear complexes [Ir(ppy or ppy-CF3)2(D-Hpen-N,S)] as a 1:1 mixture of the ΔD/ΔD isomers. These complexes were converted into IrIIIAgIIrIII trinuclear structures in [Ag{Ir(D-pen-N,S)(ppy or ppy-CF3)2}{Ir(D-Hpen-N,S)(ppy or ppy-CF3)2}] by treatment with AgNO3, which led to a drastic blueshift of the emission bands. Whereas the (ppy)Ir IIIAgIIrIII complex produced the heterochiral ΔDΔD isomer, the ppy-CF3 complex gave the homochiral ΔDΔD and ΔDΔ D isomers that could completely be separated by crystallization. It was found that the quantum efficiency of the emission band for the ΔDΔD isomer is much lower than that for the ΔDΔD isomer.",

keywords = "Chiral resolution, Iridium, Luminescence, S ligands, Substituent effects",

author = "Keisuke Saito and Yuta Sarukawa and Kiyoshi Tsuge and Takumi Konno",

year = "2010",

month = sep,

doi = "10.1002/ejic.201000689",

language = "英語",

pages = "3909--3913",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "Wiley-VCH Verlag",

number = "25",

}

TY - JOUR

T1 - Heterochiral vs. homochiral linkage of emissive iridium(III) complexes with D-penicillaminate

T2 - Drastic change in emission induced by silver(I) linkage

AU - Saito, Keisuke

AU - Sarukawa, Yuta

AU - Tsuge, Kiyoshi

AU - Konno, Takumi

PY - 2010/9

Y1 - 2010/9

N2 - Reactions of [{Ir(ppy or ppy-CF3)2} 2(μ-Cl)2] {Hppy = 2-phenylpyridine, Hppy-CF3 = 2-[3,5-bis(trifluoromethyl)phenyl]-pyridine} with d-penicillamine (D-H 2pen) afforded emissive IrIII mononuclear complexes [Ir(ppy or ppy-CF3)2(D-Hpen-N,S)] as a 1:1 mixture of the ΔD/ΔD isomers. These complexes were converted into IrIIIAgIIrIII trinuclear structures in [Ag{Ir(D-pen-N,S)(ppy or ppy-CF3)2}{Ir(D-Hpen-N,S)(ppy or ppy-CF3)2}] by treatment with AgNO3, which led to a drastic blueshift of the emission bands. Whereas the (ppy)Ir IIIAgIIrIII complex produced the heterochiral ΔDΔD isomer, the ppy-CF3 complex gave the homochiral ΔDΔD and ΔDΔ D isomers that could completely be separated by crystallization. It was found that the quantum efficiency of the emission band for the ΔDΔD isomer is much lower than that for the ΔDΔD isomer.

AB - Reactions of [{Ir(ppy or ppy-CF3)2} 2(μ-Cl)2] {Hppy = 2-phenylpyridine, Hppy-CF3 = 2-[3,5-bis(trifluoromethyl)phenyl]-pyridine} with d-penicillamine (D-H 2pen) afforded emissive IrIII mononuclear complexes [Ir(ppy or ppy-CF3)2(D-Hpen-N,S)] as a 1:1 mixture of the ΔD/ΔD isomers. These complexes were converted into IrIIIAgIIrIII trinuclear structures in [Ag{Ir(D-pen-N,S)(ppy or ppy-CF3)2}{Ir(D-Hpen-N,S)(ppy or ppy-CF3)2}] by treatment with AgNO3, which led to a drastic blueshift of the emission bands. Whereas the (ppy)Ir IIIAgIIrIII complex produced the heterochiral ΔDΔD isomer, the ppy-CF3 complex gave the homochiral ΔDΔD and ΔDΔ D isomers that could completely be separated by crystallization. It was found that the quantum efficiency of the emission band for the ΔDΔD isomer is much lower than that for the ΔDΔD isomer.

KW - Chiral resolution

KW - Iridium

KW - Luminescence

KW - S ligands

KW - Substituent effects

UR - http://www.scopus.com/inward/record.url?scp=77956535030&partnerID=8YFLogxK

U2 - 10.1002/ejic.201000689

DO - 10.1002/ejic.201000689

M3 - 学術論文

AN - SCOPUS:77956535030

SN - 1434-1948

SP - 3909

EP - 3913

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 25

ER -

Heterochiral vs. homochiral linkage of emissive iridium(III) complexes with D-penicillaminate: Drastic change in emission induced by silver(I) linkage

Abstract

Keywords

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