Easy separation of Δ and Λ isomers of highly luminescent [Ir ~III]-cyclometalated complexes based on chiral phenol-oxazoline ancillary ligands

Marchi E.; Sinisi R.; Bergamini G.; Tragni M.; Monari M.; Bandini M.; Ceroni P.

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Easy separation of Δ and Λ isomers of highly luminescent [Ir ~III]-cyclometalated complexes based on chiral phenol-oxazoline ancillary ligands

机译：易于分离基于手性酚-恶唑啉辅助配体的高发光[Ir〜III]-环金属化配合物的Δ和Λ异构体

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A new class of neutral cyclometalated iridium(III) complexes with enantiomerically pure C _1-symmetric phenol-oxazolines (3 a,b) have been synthetized in high yields and fully characterized. Resolution of the corresponding Δ _R and Λ _R or Δ _S and Λ _S isomers was easily achieved by conventional flash chromatography. The corresponding Δ and Λ helicities have been confirmed by CD spectroscopy and X-ray crystallography. Regarding the absorption and luminescence properties with unpolarized light, no significant difference between Δ and Λ isomers has been observed. A strong blue luminescence is observed for deaerated solutions of complexes 5 a and 5 b in CH _3CN.

机译：新型的中性环金属化铱（III）与对映体纯C _1对称酚-恶唑啉（3 a，b）的新型络合物已高收率合成并得到充分表征。相应的Δ_R和Λ_R或Δ_S和Λ_S异构体的拆分可通过常规快速色谱轻松实现。相应的Δ和Λ螺旋已通过CD光谱和X射线晶体学确认。关于非偏振光的吸收和发光性质，没有观察到Δ和Λ异构体之间的显着差异。对于CH 3CN中的络合物5a和5b的脱气溶液，观察到了强烈的蓝色发光。

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《Chemistry: A European journal》 |2012年第28期|共9页
作者
Marchi E.; Sinisi R.; Bergamini G.; Tragni M.; Monari M.; Bandini M.; Ceroni P.;
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正文语种 eng
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chiral ligands; circular dichroism; iridium; phosphorescence;

机译：手性配体圆二色性铱磷光;

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1. Easy separation of Δ and Λ isomers of highly luminescent [Ir ~III]-cyclometalated complexes based on chiral phenol-oxazoline ancillary ligands [J] . Marchi E., Sinisi R., Bergamini G., Chemistry: A European journal . 2012,第28期

机译：易于分离基于手性酚-恶唑啉辅助配体的高发光[Ir〜III]-环金属化配合物的Δ和Λ异构体
2. Cyclometalated Ir(III) complexes containing ancillary pyrazole-based ligands [J] . Hajra Tanima, Ghosh Soumya, Bera Jitendra K, Indian journal of chemistry . 2011,第9a10期

机译：含辅助吡唑基配体的环金属化Ir（III）配合物
3. Highly Luminescent Mono- and Dinuclear Cationic Iridium(III) Complexes Containing Phenanthroline-Based Ancillary Ligand [J] . Yang Xiao-Han, Li Min, Peng Hui, European journal of inorganic chemistry . 2019,第6期

机译：高亮度单颗阳离子铱（III）配合物含有菲芳基的辅助配体
4. Emission properties of Ir(III) complexes with structural change of cyclometalate ligands [C] . WATANABE Kei, OHNO Keiji, NAGASAWA Akira 日本化学会春季年会講演予稿集 . 2018

机译：具有环硫酸盐配体的结构变化的IR（III）复合物的排放性能
5. Lanthanide(III) macrocyclic complexes as PARACEST agents for MRI and highly luminescent europium(III) phenanthroline derivatives for DNA detection [D] . Huang, Ching-Hui 2009

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6. Cytotoxicity of Pyrazine-Based Cyclometalated (C^Npz^C)Au(III) Carbene Complexes: Impact of the Nature of theAncillary Ligand on the Biological Properties [O] . Benoît Bertrand, *, Julio Fernandez-Cestau, -1

机译：吡嗪基环金属化（C ^ Npz ^ C）Au（III）卡宾络合物的细胞毒性：辅助配体的生物学特性
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机译：基于香豆素的环状Ir（III）配合物的异构体，具有易于调整的磷光颜色和具有高效有机发光二极管的特征

Easy separation of Δ and Λ isomers of highly luminescent [Ir ~III]-cyclometalated complexes based on chiral phenol-oxazoline ancillary ligands

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