Synthesis and X‐ray Crystal Structures of Cobalt and Copper Complexes of 1,3‐Bis(benzotriazolyl)propanes

Abstract

Two propylene-bridged bis-benzotriazole ligands, 1 and 2, were used to obtain three novel

Synthesis, crystal structures, and biological activities of silver(I) and cobalt(II) complexes with an azole derivative ligand

“…The radical-scavenging (RS) activities of L and its two complexes were tested using the pyrogallol autoxidation method [18][19][20]. For the control experiment: Tris-HCl buffer (5 mL, pH = 8.2) was mixed with double distilled water (5 mL), and the mixture was kept at 25.0 ± 0.2°C for 20 min.…”

Di-μ-chlorido-bis[2,2′-(propane-1,3-diyl)bis(2H-benzotriazole)-κ2N1,N1′]copper(I)]

“…For the isomeric chain structure, see Borsting & Steel (2004). For the synthesis of the ligand, see: Xie et al (2000).…”

Dichlorobis(2,5-diphenyl-1,3,4-thiadiazole-κN3)palladium(II)

“…We have long been involved in the synthesis and study of metal complexes of new heterocyclic ligands (Steel, 2005). In particular, we have been interested in the design of ligands incorporating less commonly studied heterocyclic ring systems, such as tetrazoles (Downard et al, 1995), 1,2-benzisoxazoles (Richardson & Steel, 2000a), furoxans (Richardson & Steel, 2000b), 1,2,5-oxadiazoles and 1,2,5-thiadiazoles (Richardson & Steel, 2001;, 1,2,3thiadiazoles (and selenadiazoles) , pyridazines (Sumby & Steel, 2003), 1,4,2,5-dioxadiazines (Richardson & Steel, 2003a), benzotriazoles (Richardson & Steel, 2003b;Borsting & Steel, 2004), and thiazolo [5,4d]thiazoles (Zampese et al, 2004). 2,5-Diphenyl-1,3,4-thiadiazole has been known for more than half a century (Chabrier et al, 1949), but the first metal complex containing this ligand was reported only recently (Franski & Gierczyk, 2005).…”