Versatile Para‐Substituted Pyridine Lanthanide Coordination Complexes Allow Late Stage Tailoring of Complex Function
作者:Matthieu Starck、Jack D. Fradgley、Davide F. De Rosa、Andrei S. Batsanov、Maria Papa、Michael J. Taylor、Janet E. Lovett、Jacob C. Lutter、Matthew J. Allen、David Parker
DOI:10.1002/chem.202103243
日期:2021.12.20
A series of cationic and neutral p-bromo and p-nitropyridine substituted Eu(III) and Gd(III) coordinationcomplexes serve as versatile synthetic intermediates. This approach allows the late stage tuning of absorption and emission spectroscopic properties for Eu(III) complexes, and provides easy access to the corresponding Eu(II) analogues, aiding the development of Gd(III) EPR spin probes that can
Very bright europium complexes that stain cellular mitochondria
作者:James W. Walton、Adrien Bourdolle、Stephen J. Butler、Marine Soulie、Martina Delbianco、Brian K. McMahon、Robert Pal、Horst Puschmann、Jurriaan M. Zwier、Laurent Lamarque、Olivier Maury、Chantal Andraud、David Parker
DOI:10.1039/c2cc35247h
日期:——
The synthesis, structure and photophysical properties of a series of highly emissive europium complexes is reported. Certain complexes enter mammalian cells by macropinocytosis and stain the mitochondria selectively, allowing observation of the Eu emission in cellulo by time-gated spectral imaging.
Structural Control of Cell Permeability with Highly Emissive Europium(III) Complexes Permits Different Microscopy Applications
作者:Matthieu Starck、Robert Pal、David Parker
DOI:10.1002/chem.201504103
日期:2016.1.11
Four anionic europiumcomplexes are described based on triazacyclononane tris‐carboxylate or phosphinate ligands. In each case, the three sensitising chromophores comprise a substituted aryl–alkynyl pyridine group, with complexbrightness in water falling in the range 4 to 23 mM−1 cm−1. para‐Substitution of the aryl ring with carboxymethyl groups gives complexes that are taken into cells, stain the
基于三氮杂环壬烷三羧酸酯或次膦酸酯配体描述了四种阴离子euro络合物。在每种情况下,这三种敏化发色团均包含一个取代的芳基-炔基吡啶基,水中的复数辉度在4至23 m M -1 cm -1的范围内。帕拉-用羧甲基取代芳基环可将复合物带入细胞,对溶酶体进行选择性染色,出乎意料地允许对溶酶体pH值进行终生测量。相反,磺酸根基团的引入抑制了细胞的吸收,从而使Eu复合物可用作膜表面FRET应用的细胞外供体。使用定时门控FRET显微镜,可以突出显示细胞膜结构,其中将Cell Mask Deep Red用作膜定位FRET受体。
Comparative Analysis of Conjugated Alkynyl Chromophore-Triazacyclononane Ligands for Sensitized Emission of Europium and Terbium
作者:Marine Soulié、Frédéric Latzko、Emmanuel Bourrier、Virginie Placide、Stephen J. Butler、Robert Pal、James W. Walton、Patrice L. Baldeck、Boris Le Guennic、Chantal Andraud、Jurriaan M. Zwier、Laurent Lamarque、David Parker、Olivier Maury
DOI:10.1002/chem.201402415
日期:2014.7.7
A series of europium and terbium complexes based on a functionalized triazacyclononane carboxylate or phosphinate macrocyclic ligand is described. The influence of the anionic group, that is, carboxylate, methylphosphinate, or phenylphosphinate, on the photophysical properties was studied and rationalized on the basis of DFT calculated structures. The nature, number, and position of electron‐donating
NOVEL COMPLEXING AGENTS AND CORRESPONDING LANTHANIDE COMPLEXES
申请人:Lamarque Laurent
公开号:US20140336373A1
公开(公告)日:2014-11-13
The present invention concerns complexing agents of formula (I) in which a, b, c, chrom
1
, chrom
2
, chrom
3
, R
3
, R
4
and R
5
are as defined in the description. The invention also concerns lanthanide complexes comprising said complexing agents, as well as a method for synthesizing said agents.