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Synthesis, structural characterization, and photophysical, spectroelectrochemical, and anion-sensing studies of heteroleptic ruthenium(II) complexes derived from 4'-polyaromatic-substituted
TLDR
Anion-induced lifetime quenching and/or enhancement make the receptors suitable lifetime-based sensors for selective anions, and Cyclic voltammetric measurements of the compounds carried out in acetonitrile have provided evidence in favor of anion-dependent electrochemical responses with F(-) and AcO(-) ions. Expand
Ruthenium(II) and osmium(II) mixed chelates based on pyrenyl-pyridylimidazole and 2,2'-bipyridine ligands as efficient DNA intercalators and anion sensors.
TLDR
The photophysical properties of 1 and 2 in acetonitrile indicate that the metal-to-ligand charge-transfer excited state is mainly centered in the [M(bpy)2](2+) moiety of the complexes and slightly affected by the extended conjugation of the pyrenylimidazole moiety. Expand
Synthesis, structural characterization, and multichannel anion and cation sensing studies of a bifunctional Ru(II) polypyridyl-imidazole based receptor.
TLDR
The cation-sensing properties showed that the receptor was found to exhibit a colorimetric sensing ability that was highly selective for Fe(2+), as evidenced by the distinct color change from yellow orange to deep red-violet to the naked eye over the other cations studied. Expand
A combined experimental and DFT/TDDFT investigation of structural, electronic, and pH-induced tuning of photophysical and redox properties of osmium(II) mixed-chelates derived from
TLDR
Experimental results coupled with computational studies were utilized to investigate the structural and electronic properties of mixed-ligand monometallic osmium(II) complexes, which showed that compound 1(+) crystallizes in a monoclinic form with the space group P2(1)/c, while 1 is obtained in a triclinicform with thespace group P1[combining macron]. Expand
Homo- and Heterobimetallic Ruthenium(II) and Osmium(II) Complexes Based on a Pyrene-Biimidazolate Spacer as Efficient DNA-Binding Probes in the Near-Infrared Domain.
TLDR
A new family of homo- and heterobimetallic complexes of the type [(bpy)2M(Py-Biimz)M'(II)(b py)2](2+) derived from a pyrenyl-biimidazole-based bridge are reported, which afford more biofriendly conditions for probable applications in infrared imaging and phototherapeutic studies. Expand
Light harvesting and directional energy transfer in long-lived homo- and heterotrimetallic complexes of Fe(II), Ru(II), and Os(II).
TLDR
Steady-state and time-resolved luminescence data suggest that the multicomponent molecular-wire-like complexes investigated here can behave as efficient light-harvesting antennas, because all the light absorbed by the various subunits is efficiently channeled to the subunit(s) in which the lowest-energy excited states are located. Expand
Multichromophoric bimetallic Ru(II) terpyridine complexes based on pyrenyl-bis-phenylimidazole spacer: synthesis, photophysics, spectroelectrochemistry, and TD-DFT calculations.
TLDR
Interestingly, the present bimetallic complexes exhibit moderately strong luminescence in the range between 657 and 703 nm and lifetimes (long component) between 5.8 and 67.0 ns at room temperature showing the dependence of the emission characteristics upon the type of terminal ligand and solvent. Expand
Pyrene-biimidazole based Ru(II) and Os(II) complexes as highly efficient probes for the visible and near-infrared detection of cyanide in aqueous media.
TLDR
Both complexes possess a very high selectivity towards cyanide ions in aqueous media in the presence of an excess of other anions and display a visual detection of cyanide ion detection with a very low detection limit. Expand
An imidazolyl-pyreno-imidazole conjugate as a cyanide sensor and a set-reset memorized sequential logic device.
TLDR
A molecular system which can mimic sequential Boolean logic functions of XOR, OR, XNOR and NOR logic gates is developed and a memory device which nicely demonstrates the "Write-Read-Erase-Read" behavior is constructed. Expand
Structural characterization and spectroelectrochemical, anion sensing and solvent dependence photophysical studies of a bimetallic Ru(II) complex derived from
TLDR
The anion sensing properties of the receptor were thoroughly investigated in acetonitrile solution using absorption, steady state and time-resolved emission spectroscopic studies and revealed that the receptor acts as sensor for F(-, AcO(-) and H(2)PO(4)(-). Expand
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