178265-65-1Relevant articles and documents
Rapid self-healing and anion selectivity in metallosupramolecular gels assisted by fluorine-fluorine interactions
Arnedo-Sánchez, Leticia,Nonappa,Bhowmik, Sandip,Hietala, Sami,Puttreddy, Rakesh,Lahtinen, Manu,De Cola, Luisa,Rissanen, Kari
, p. 7309 - 7316 (2017)
Simple ML2 [M = Fe(II), Co(II), Ni(II)] complexes obtained from a perfluoroalkylamide derivative of 4-aminophenyl-2,2′,6,2′-terpyridine spontaneously, yet anion selectively, self-assemble into gels, which manifest an unprecedented rapid gel strength recovery, viz. self-healing, and thermal rearrangement in aqueous dimethyl sulfoxide. The key factor for gelation and rheological properties emerges from the fluorine-fluorine interactions between the perfluorinated chains, as the corresponding hydrocarbon derivative did not form metallogels. The perfluoro-terpyridine ligand alone formed single crystals, while its Fe(II), Co(II) or Ni(II) complexes underwent rapid gelation leading to highly entangled fibrillar networks visualized by electron microscopy. The thermodynamic parameters of gelation based on variable temperature NMR 1H and 19F resonances showed that gelation was enthalpically favourable and entropically disfavourable. The step strain rheological experiments revealed that the gels undergo rapid self-healing and the morphological features, thermal stability and mechanical properties were found to depend on the nature of the metal ion.
Photophysical properties of osmium(II) complexes with the novel 4'-p-phenylterpyridine-triarylpyridinium ligand
Laine, Philippe,Amouyal, Edmond
, p. 935 - 936 (1999)
A new family of electron acceptor ligands complexed with osmium(II) and associated with appropriate electron donor subunits within heteroleptic compounds, results in multicomponent assemblies of potential interest for both synthetic chemistry and supramol
Fluorescent supramolecular polymers: Metal directed self-assembly of perylene bisimide building blocks
Dobrawa, Rainer,Lysetska, Marina,Ballester, Pablo,Gruene, Matthias,Wuerthner, Frank
, p. 1315 - 1325 (2005)
Complezation properties of 2,2′:6′,2″-terpyridine (tpy) have been studied with, a series of first row transition metal ions by UV-vis, 1H NMR, and isothermal titration calorimetry, and AH values for the tpy complexation processes have been dete
Luminescent lanthanide(III) complexes of DTPA-bis(amido-phenyl-terpyridine) for bioimaging and phototherapeutic applications
Dasari, Srikanth,Singh, Swati,Abbas, Zafar,Sivakumar, Sri,Patra, Ashis K.
supporting information, (2021/04/12)
We report here a series of coordinatively-saturated and thermodynamically stable luminescent [Ln(dtntp)(H2O)] [Ln(III) = Eu (1), Tb (2), Gd (3), Sm (4) and Dy (5)] complexes using an aminophenyl-terpyridine appended-DTPA (dtntp) chelating ligand as cell imaging and photocytotoxic agents. The N,N″-bisamide derivative of H5DTPA named as dtntp is based on 4′-(4-aminophenyl)-2,2′:6′,2″-terpyridine conjugated to diethylenetriamine-N,N′,N″-pentaacetic acid. The structure, physicochemical properties, detailed photophysical aspects, interaction with DNA and serum proteins, and photocytotoxicity were studied. The intrinsic luminescence of Eu(III) and Tb(III) complexes due to f → f transitions used to evaluate their cellular uptake and distribution in cancer cells. The solid-state structure of [Eu(dtntp)(DMF)] (1·DMF) shows a discrete mononuclear molecule with nine-coordinated {EuN3O6} distorted tricapped-trigonal prism (TTP) coordination geometry around the Eu(III). The {EuN3O6} core results from three nitrogen atoms and three carboxylate oxygen atoms, and two carbonyl oxygen atoms of the amide groups of dtntp ligand. The ninth coordination site is occupied by an oxygen atom of DMF as a solvent from crystallization. The designed probes have two aromatic pendant phenyl-terpyridine (Ph-tpy) moieties as photo-sensitizing antennae to impart the desirable optical properties for cellular imaging and photocytotoxicity. The photostability, coordinative saturation, and energetically rightly poised triplet states of dtntp ligand allow the efficient energy transfer (ET) from Ph-tpy to the emissive excited states of the Eu(III)/Tb(III), makes them luminescent cellular imaging probes. The Ln(III) complexes show significant binding tendency to DNA (K ~ 104 M?1), and serum proteins (BSA and HSA) (K ~ 105 M?1). The luminescent Eu(III) (1) and Tb(III) (2) complexes were utilized for cellular internalization and cytotoxicity studies due to their optimal photophysical properties. The cellular uptake studies using fluorescence imaging displayed intracellular (cytosolic and nuclear) localization in cancer cells. The complexes 1 and 2 displayed significant photocytotoxicity in HeLa cells. These results offer a modular design strategy with further scope to utilize appended N,N,N-donor tpy moiety for developing light-responsive luminescent Ln(III) bioprobes for theranostic applications.
A novel bis(terpyridine) with π?conjugated phenyl viologen and its metallo- supramolecular polymers: Synthesis and electrochromism
Qian, Yuchen,Wang, Yuechuan,Yang, Han
, (2020/02/11)
A novel phenylene viologen functionalized bis(terpyridine) is synthesized and characterized with 1HNMR and Maldi-tof-MS. This rod-like and π-conjugated molecule, 1,1'-[4'-(4-phenyl)-2,2:6′,2″- terpyridine-4,4′-bipyridine-1,1′-diium dichloride (