125640-71-3

Basic information

• Product Name: [N,N'-bis(salicylidene)-1,2-ethanediaminato]Mn(III) chloride
• CAS NO: 125640-71-3
• Molecular Weight: 356.69
• Mol File: 125640-71-3.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: [N,N'-bis(salicylidene)-1,2-ethanediaminato]Mn(III) chloride(CAS DataBase Reference)
• NIST Chemistry Reference: [N,N'-bis(salicylidene)-1,2-ethanediaminato]Mn(III) chloride(125640-71-3)
• EPA Substance Registry System: [N,N'-bis(salicylidene)-1,2-ethanediaminato]Mn(III) chloride(125640-71-3)

Safety Data

• Hazardous Substances Data: 125640-71-3(Hazardous Substances Data)

Upstream product

• 94-93-9 N,N'-ethylenebis(salicylideneimine) 
• 184882-73-3 MnCl(OC₆H₃(OCH₃)CHNC₆H₁₀NCHC₆H₃(OCH₃)O) 
• 142021-25-8 nitrido{bis-N,N'-(salicylaldehyde)ethylenediiminato}manganese(V) 
• 2435-53-2 o-tetrachloroquinone 
• 6156-78-1 manganese (II) acetate tetrahydrate 
• 90-02-8 salicylaldehyde 
• 107-15-3 ethylenediamine 

Relevant articles and documents

Towards Catalytic Ammonia Oxidation to Dinitrogen: A Synthetic Cycle by Using a Simple Manganese Complex

Oxidation of the nucleophilic nitride, (salen)Mn≡N (1) with stoichiometric [Ar3N][X] initiated a nitride coupling reaction to N2, a major step toward catalytic ammonia oxidation (salen=N,N'-bis(salicylidene)-ethylenediamine dianion; Ar=p-bromophenyl; X=[SbCl6]? or [B(C6F5)4]?). N2 production was confirmed by mass spectral analysis of the isotopomer, 1-15N, and the gas quantified. The metal products of oxidation were the reduced MnIII dimers, [(salen)MnCl]2 (2) or [(salen)Mn(OEt2)]2[B(C6F5)4]2 (3) for X=[SbCl6]? or [B(C6F5)4]?, respectively. The mechanism of nitride coupling was probed to distinguish a nitridyl from a nucleophilic/electrophilic coupling sequence. During these studies, a rare mixed-valent MnV/MnIII bridging nitride, [(salen)MnV(μ-N)MnIII(salen)][B(C6F5)4] (4), was isolated, and its oxidation-state assignment was confirmed by X-ray diffraction (XRD) studies, perpendicular and parallel-mode EPR and UV/Vis/NIR spectroscopies, as well as superconducting quantum interference device (SQUID) magnetometry. We found that 4 could subsequently be oxidized to 3. Furthermore, in view of generating a catalytic system, 2 can be re-oxidized to 1 in the presence of NH3 and NaOCl closing a pseudo-catalytic “synthetic” cycle. Together, the reduction of 1→2 followed by oxidation of 2→1 yield a genuine synthetic cycle for NH3 oxidation, paving the way to the development of a fully catalytic system by using abundant metal catalysis.

Effect of substituents on the Mn(III)Salen catalyzed oxidation of styrene

The influence of the electron-donating tert-butyl group both on the encapsulation of the Salen ligand and the catalytic activity of the catalyst produced was studied. Styrene oxidation at room temperature and 1 atm using molecular oxygen as oxidant and tert-butyl hydroperoxide as initiator showed that neat and encapsulated Mn(III)Salen complexes (Br2Salen and (tert-butyl)4Salen) were active. Using the intrazeolite ligand synthesis (or template synthesis) method, the increase in the size of the complexes improved their physical entrapping in the zeolite. The encapsulation produced more stable catalysts, especially in the case of (tert-butyl)4Salen catalyst.

Reversible Nitrogen Atom Transfer between Nitridomanganese(V) and Manganese(III) Schiff-Base Complexes

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