Salen ligands and relative metal complexes are widely used in many fields, such as catalysis, sensing, optical electronic materials. The introduction of a wide range substituents different positions, both the salen scaffold diamine bridge, allows tuning chemical, catalytic spectroscopic properties. In this contribution, we report synthesis characterization new ligand Co(II) complex bearing male...

In this work, we revisited the disassembly approach (also known as Zelder's approach) recently proposed for sensing pyrophosphate (PPi) in water and based on decomposition of metal-salen complexes. A systematic study devoted to structural optimization novel class PPi-responsive fluorogenic probes was conducted. Screening eight different vicinal diamines ( i.e. , bridge salen ligand) combined wi...

Bu çalışmada çıkış maddesi olarak siyanür klorür kullanıldı. Siyanür klorür, literatürde verilen metotlardan faydalanılarak asetonlu ortamda farklı klor uçlarından 5-hidroksiizoftalik asit kullanılarak 0 oC bir yönlü (monopodal) 2,4-dikloro-6-(3,5-dikarboksifenoksi)-1,3,5-triazin (MNCHIPA) ve oda sıcaklığında iki (dipodal) 2-kloro-4,6-(2,5-dikarboksifenilfenoksi)-1,3,5-triazin (DPCHIPA) bileşik...

Solvent-free copolymerization of epoxides derived from fatty esters of waste cooking oil with phthalic anhydride using (salen)CrIIICl as catalyst and n-Bu₄NCl/DMAP (tetrabutylammonium chloride/4-(dimethylamino)pyridine) as co-catalysts was carried out for the first time under microwave irradiation, where reaction time was reduced from a number of hours to minutes. The polyesters were obtained w...

Synthetic methods to prepare organometallic and coordination compounds such as Schiff-base complexes are diverse, with the route chosen being dependent upon many factors such as metal-ligand combination and metal oxidation state. In this work we have shown that electrochemical methodology can be employed to synthesize a variety of metal-salen/salan complexes which comprise diverse metal-ligand ...

The complexation reaction between salen (Bis(salicylidene)ethylenediamine) and Cu(II) cations in methanol (MeOH), 2-propanol (2-PrOH), acetonitrile (AN), tetrahydrofuran (THF), and chloroform (CHCl3) as nonaqueous solvents at 25º C has been investigated. The stoichiometry and formation constants of complexes have been determined spectrophotometrically and conductometrically by method of continu...

Amyloid aggregation of polypeptides is related to a growing number of pathologic states known as amyloid disorders. In recent years, blocking or reversing amyloid aggregation via the use of small compounds are considered as two useful approaches in hampering the development of these diseases. In this research, we have compared the ability of several manganese-salen derivatives, as synthetic com...

The previously developed enantioselective iodocyclization of gamma-hydroxy-cis-alkenes required 30 mol% of (R,R)-salen-Co(II) complex as chiral catalyst and 0.75 equivalent of N-chlorosuccinimide (NCS) as activator to produce 2-substituted tetrahydrofurans with 61 to 90% ee. Due to the considerable loading amount of the Co(II) complex, another more effective catalyst was pursued by screening (R...