Crystal structures, two-photon excited fluorescence and bioimaging of Zn(II) complexes based on an extended 2,2′-bipyridine ligand

Jin, Feng; Shu, Wenchao; Yu, Xianpeng; Zhang, Yue; Sun, Lin; Liu, Yong; Tao, Dongliang; Zhou, Hu; Tian, Yupeng

doi:10.1016/j.dyepig.2015.05.039

Cited by 15 publications

(3 citation statements)

References 21 publications

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“…In last years, J. L. Zhang's group have reported systematic photophysical examinations of Zn II complexes and their biological applications. These studies show the inability of the examined complexes to be used for labeling membrane and another subcellular organelle simultaneously . Nevertheless, rational designing of complexes with both membrane specificity and nonlinear optical activity (NLO) is of great interest.…”

Section: Bioimaging Applications Of Znii Complexesmentioning

confidence: 99%

Zn^II Complexes for Bioimaging and Correlated Applications

Tian

Hussain

Pace

et al. 2019

Chemistry An Asian Journal

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Zinc is a biocompatible element that exists as the second most abundant transition metal ion and an indispensable trace element in the human body. Compared to traditional metal‐organic complexes systems, d10 metal ZnII complexes not only exhibit a large Stokes shift and good photon stability but also possess strong emission and low cytotoxicity with a relatively small molecular weight. The use of ZnII complexes has emerged in the last decade as a versatile and convenient tool for numerous biological applications, including bioimaging, molecular and protein recognition, as well as photodynamic therapy. Herein, we review recent developments involving ZnII metal complexes applied as specific subcellular compartment imaging probes and their correlated utilizations.

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Section: Bioimaging Applications Of Znii Complexesmentioning

confidence: 99%

Zn^II Complexes for Bioimaging and Correlated Applications

Tian

Hussain

Pace

et al. 2019

Chemistry An Asian Journal

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“…Polymers 2017, 9, 427 3 of 16 The synthesis of 3,6-dibromo-9-(4-methylbenzyl)-9H-carbazole (2) and carbazole-tpy alternating conjugated polymer (PCT) is provided in the supporting information. Toluene was purified and distilled from sodium prior.…”

Section: Methodsmentioning

confidence: 99%

“…Fluorescent chemosensors generally contain a recognition site linked to a fluorophore, and a recognition event is translated into a fluorescent signal [6]. To date, a series of conjugated polymers have been synthesized to detect cations [7,8], anions [9,10], and pH [11,12] by incorporating specific receptors in the main or side chains of polymers, such as alkyl ethers [13], crown ethers [14], quinolones [15], bipyridines [16,17], and terpyridines [18,19]. A pyridine-based derivative, 2,2 :6 ,2 -terpyridine (tpy), has an extremely high binding affinity toward many metal ions in low oxidation states because of its well-positioned ring of nitrogen atoms.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Chemosensory Properties, and Self-Assembly of Terpyridine-Containing Conjugated Polycarbazole through RAFT Polymerization and Heck Coupling Reaction

Yang

Chien

et al. 2017

Polymers

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Abstract:We report the responsive fluorescence chemosensory phenomena of a carbazolefunctionalized crosslinked polymer (PCaT) with pendent terpyridine (tpy) groups as receptors of metal ions. The polymer was synthesized using Heck polymerization between 3,6-dibromide groups in a carbazole-based polymer (PC2Br) and divinyl tpy monomer. The effects of the polymeric structure on the optical and chemosensory properties of the PCaT were compared with those of a carbazole-tpy alternating conjugated polymer (PCT). Photoluminescence titrations demonstrated that the PCaT and PCT had the high sensing ability toward Fe 3+ ions, with Stern-Volmer constants of 8.10 × 10 4 and 6.68 × 10 4 M −1 , respectively. The limit of detection (LOD) toward Fe 3+ of the PCaT and PCT was estimated to be 1.31 × 10 −6 and 1.81 × 10 −6 M, respectively, and the superior LOD of the PCaT was ascribed to its lowly crosslinked structure. The fluorescence of the solutions of these polymers that were quenched by Fe 3+ ions recovered when trace CN − anions were added because of the high stability constant of the CN − -Fe 3+ complex. Micellar aggregates with a mean diameter of approximately 239.5 nm were formed by dissolving the PCaT in tetrahydrofuran (THF) solution. Our results suggest that the PCaT is a promising material for chemosensory applications.

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Mono‐, Di‐, and Polymeric Pyridinoylhydrazone Zn^II Complexes: Structure and Photoluminescent Properties

et al. 2016

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A series of zinc complexes with tridentate pyridinoylhydrazone ligands bearing two different end groups and coordinated pyridine molecules were synthesized and characterized. Crystal structures with mono‐, di‐, and polymeric arrangements were obtained, depending on the position of the pyridinoyl nitrogen atom. Direct involvement of the pyridinoyl moiety in the coordination to the metal was observed when the nitrogen was in the ortho or meta position. The meta derivatives led to 1D polymers with the same coordination environment, regardless of the bulkiness of the end group. In this case, unprecedented solid‐state photoluminescence quantum yields were recorded. In the ortho ligands, the further bidentate N,N site involving the pyridinoyl nitrogen atom was able to coordinate a further zinc acetate unit. Molecular and periodic calculations were performed within density functional theory (DFT) to rationalize the photophysical behavior. Excellent agreement between the theoretical and experimental absorptions was observed. The HOMOs and LUMOs of the complexes were investigated both in the solid state and in solution.

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Crystal structures, two-photon excited fluorescence and bioimaging of Zn(II) complexes based on an extended 2,2′-bipyridine ligand

Cited by 15 publications

References 21 publications

Zn^II Complexes for Bioimaging and Correlated Applications

Zn^II Complexes for Bioimaging and Correlated Applications

Synthesis, Chemosensory Properties, and Self-Assembly of Terpyridine-Containing Conjugated Polycarbazole through RAFT Polymerization and Heck Coupling Reaction

Mono‐, Di‐, and Polymeric Pyridinoylhydrazone Zn^II Complexes: Structure and Photoluminescent Properties

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Crystal structures, two-photon excited fluorescence and bioimaging of Zn(II) complexes based on an extended 2,2′-bipyridine ligand

Cited by 15 publications

References 21 publications

ZnII Complexes for Bioimaging and Correlated Applications

ZnII Complexes for Bioimaging and Correlated Applications

Synthesis, Chemosensory Properties, and Self-Assembly of Terpyridine-Containing Conjugated Polycarbazole through RAFT Polymerization and Heck Coupling Reaction

Mono‐, Di‐, and Polymeric Pyridino­ylhydrazone ZnII Complexes: Structure and Photoluminescent Properties

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Zn^II Complexes for Bioimaging and Correlated Applications

Zn^II Complexes for Bioimaging and Correlated Applications

Mono‐, Di‐, and Polymeric Pyridinoylhydrazone Zn^II Complexes: Structure and Photoluminescent Properties