A new heteroleptic ethyl-zinc complex stabilized by a chelating bis(morpholinomethyl)phenoxy ligand has been synthesised and shown to be a highly potent initiator for the immortal ring-opening polymerisation (ROP) of lactide and beta-butyrolactone, being able to convert up to 50,000 equiv. of monomer in the presence of up to 1000 equiv. of an alcohol as transfer agent. Two related heteroleptic ...

A new diphosphine ligand assembled on the cyclotriphosphazene platform forms linear chelate and dimetallic bridged complexes with Au(I) and a cis-chelate complex with Pt(II).

Five rare earth complexeslanthanum(III),praseodymium(III),neodymium(III), samarium(III) and europium(III) have been synthesized from Schiff base ligand (N,N-bis (2-hydroxy-1-naphthylidene) acetylhydrazone). The complexes were characterized based on elemental analysis, molar conductance, ultraviolet, infrared, mass, thermogravimetric and powder X-ray diffraction studies. Infrared spectra sug...

Two new adenine derivatives bearing a N-methylene (1) or N-ethylene (2) tethered diphenylphosphine group have been reacted with [MIIICl2Cp*]2 (M = Ir, Rh) or [RuIIClCp*]4. The formation of Werner-type phosphine complexes [3]-[6] and upon heating their subsequent rearrangement into complexes bearing an NH,NR-NHC^PRPh2 chelate ligand in [7]Cl (M = Ir) and [8] (M = Ru) have been observed.

The development and application of phosphorescent emitters in organic light-emitting diodes (OLEDs) have played a critical role in the push to commercialization of OLED-based display and lighting technologies. Here, we use density functional theory methods to study how modifying the ancillary ligand influences the electronic and photophysical properties of heteroleptic bis(4,6-difluorophenyl) p...

Binuclear dithiocarbamate complexes of Ru(III) are promising candidates in the search for outstanding metal-based anticancer agents. While different dithiocarbamates have shown ligand-dependent cytotoxicity homoleptic binuclear complexes, properties heteroleptic analogues with (DTC) ligands yet to be explored. We herein propose introduction as tunable features development improved ruthenium-bas...

Terbium-sensitized luminescence and its applicability towards the detection of Bacillus spores such as anthrax are of significant interest to research in biodefense and medical diagnostics. Accordingly, we have measured the effects of terbium chelation upon the parameters associated with dipicolinate ligation and spore detection. Namely, the dissociation constants, intrinsic brightness, lumines...

Abstract Background Metal complexes Cu[C 13 H 8 O 4 N] 2 2, Ni[C l3 3, and Co[C of bioinorganic relevance have been synthesized with the Schiff base ligand 2-furylglyoxal–anthranilic acid (FGAA) [C 9 1 . All are well characterized by various spectral physical methods. The antimicrobial activity has studied against some pathogenic bacteria fungi. Results indicate that higher than free ligand. Th...

Our recent achievements relating to photofunctional molecules are addressed. Section 1 discloses a new concept of photoisomerization. Pyridylpyrimidine-copper complexes undergo a ring inversion that can be modulated by the redox state of the copper center. In combination with an intermolecular photoelectron transfer (PET) initiated by the metal-to-ligand charge transfer (MLCT) transition of the...

New N-methylimidazole (N-MeIm) complexes of the {Mo(η(3)-allyl)(CO)2(N-N)} fragment have been prepared, in which the N,N-bidentate chelate ligand is a 2-pyridylimine. The addition of a strong base to the new compounds deprotonates the central CH group of the imidazole ligand and subsequently forms the C-C coupling product that results from the nucleophilic attack to the imine C atom. This react...