1260074-30-3

Upstream product

• 189440-33-3 (2-aminoethyl)bis(2-pyridylmethyl)amine 
• 626-19-7 Isophthalaldehyde 
• 1260074-31-4 N₁,N₁'-(1,3-phenylenebis(methylene))bis(N₂,N₂'-bis(pyridin-2-ylmethyl)ethan-1,2-diamine) 
• 105-36-2 ethyl bromoacetate 

Relevant academic research and scientific papers

Synthesis and characterisation of low valent Mn-complexes as models for Mn-catalases

In this work we report the synthesis of two novel manganese complexes, [L13MnII6](ClO4)6 (1·(ClO4)6) and [L2MnII 2(μ-OAc)(μ-Cl)](ClO4)2 (2·(ClO4)2), where L12- is the 2,2′-(1,3-phenylenebis(methylene))bis((2-(bis(pyridin-2-ylmethyl)amino) ethyl)azanediyl)diacetic acid anion and L2 is N1,N1′-(1,3- phenylenebis(methylene))bis(N2,N2′-bis(pyridin-2-ylmethyl)ethane-1, 2-diamine). The ligands Na2L1 and L2 are built on the same backbone, L2 only contains nitrogen donors, while two carboxylate arms have been introduced in Na2L1. The two complexes have been characterized by single-crystal X-ray diffraction, magnetic susceptibility, EPR spectroscopy, and electrochemistry. X-Ray crystallography revealed that 1 is a manganese(ii) hexamer and 2 is a manganese(ii) dimer featuring an unprecedented mono-μ-acetato, mono-μ-chlorido bridging motif. The ability of the complexes to catalyse H2O2 disproportionation, thereby acting as models for manganese catalases, has been investigated and compared to the activity of two other related manganese complexes. The introduction of carboxylate donors in the ligands, leading to increased denticity, resulted in a drop in H2O2 disproportionation activity. The Royal Society of Chemistry 2010.