Bis(terpyridyl)-Ruthenium(II) Units Attached to Polyazacycloalkanes as Sensing Fluorescent Receptors For Transition Metal Ions

Hexaaquacopper(II) dinitrate: absence of Jahn–Teller distortion

“…During attempts to grow crystals of a copper complex of the ditopic ligand, 1-[4 0 -p-tolyl-(2,2 0 :6 0 ,2 00 -terpyridyl)]-1,4,8,11tetraazacyclotetradecane, (I) (Padilla-Tosta et al, 2000), blue block-shaped crystals of [Cu(H 2 O) 6 ](NO 3 ) 2 , (II), formed instead from the reaction mixture. Attempts to grow similar crystals in the absence of the ditopic ligand proved unsuccessful, which leads us to speculate that the ditopic ligand may be influencing the crystallization process.…”

Rational shaping of liquid crystalline diacylaminophenyl platforms equipped with chelating fragments, fluorescent dyes, and square planar platinum complexes

“…49 As discussed earlier, an amide function is a way to introduce additional hydrogen bonding pathways and enhance the stability of the formed mesophases. Ligands 5 n with an ester ( n = 8, 12, 16) were prepared by esterification of this acid platform with 4′‐hydroxymethyl‐2,2′;6′2″‐terpy50 derivative in the presence of 1‐ethyl‐3‐(3‐Dimethylaminopropyl) carbodiimide and 4‐dimethylaminopyridine. Six paraffin chains were introduced on the platform to favor mesophase formation.…”

A Fluorescent Chemosensor for Copper(II) Based on a Carboxylic Acid-functionalized Tris(2,2′-bipyridine)- ruthenium(II) Complex

“…[13][14][15] However, few examples of these metallo complexes have demonstrated sensor properties. 16,17 A feature which has attracted our attention is that some of them show good photophysical properties with strong fluorescence, large Stokes shifts and relatively long excitation (> 400 nm) and emission (> 600 nm) wavelengths that minimize the effects of the background fluorescence. This makes tris(bipyridine)-ruthenium(II) derivatives potential carriers for preparation of new fluorescent chemosensors.…”