636-13-5Relevant academic research and scientific papers
Trinuclear Complexes Derived from R/S Schiff Bases – Chiral Single-Molecule Magnets
Escuer, Albert,Mayans, Julia,Font-Bardia, Merce,Di Bari, Lorenzo,Górecki, Marcin
, p. 991 - 998 (2017/02/24)
The employment of enantiomerically pure Schiff bases in manganese chemistry is revealed to be an excellent method to obtain chiral single-molecule magnets and has allowed the characterization of several pairs of enantiomers, for which the magnetic properties were investigated. The reported systems consist of MnIII–MnII–MnIIIlinear trimers or MnIII3cations in a triangular arrangement including the first example of a μ3-Cl bridge in an isolated manganese triangle.
Manganese(II) carboxylates containing coordinated 3,5-dimethylpyrazole
Uvarova,Ageshina,Golubnichaya,Nefedov
, p. 934 - 941 (2015/08/18)
Reactions of manganese(II) pivalate, benzoate, and cymantrenecarboxylate with 3,5-dimethylpirazole (Hdmpz) have been found to result in mononuclear complexes (Hdmpz)4Mn(OOCR) where R = But and Ph, respectively, and binuclear complex {Mn(μ-OOCC5H4Mn(CO)3)(OOCC5H4Mn(CO)3) (Hdmpz)2(OH2)}2 which contains a pyrazole solvate molecule. The obtained complexes have been isolated in high yields as single crystals and have been characterized by chemical analysis, IR spectroscopy, and X-ray diffraction.
Synthesis, crystal structure and magnetic properties of two coordination polymers with 4-(4-carboxyphenyl)-4,2′:6′,4″-terpyridine ligand
Wang, Meng-Si,Li, Ming-Xing,He, Xiang,Shao, Min,Wang, Zhao-Xi
, p. 38 - 41 (2014/03/21)
MnII and CoII salts reacting with 4-(4-carboxyphenyl)-4,2′:6′,4″-terpyridine (4-Hcptpy) in DMF/H2O afford two complexes, [Mn(4-cptpy)(DMF)(H2O) 2]n·n(4-cptpy)·nDMF (1) and [Co(4-cptpy)2(H2O)2]n (2). Complex 1 is a 1D ribbon coordination polymer assembled by Mn2 dimer and tridentate 4-cptpy ligand. The guest 4-cptpy anion is embedded in 3D supramolecular architecture with strong hydrogen bonds. Complex 2 is a 1D linear chain coordination polymer with quadrangled pores. The complex 1 releases H2O and DMF in 87-150 C, and the anhydrous [Mn(4-cptpy)] n·n(4-cptpy) remains thermally stable until 403 C. Variable temperature magnetic susceptibility study in 2-300 K proves that a weak antiferromagnetic interaction exists in the (μ-O2CR) 2Mn2 core.
Efficient synthesis of manganese(ii) carboxylates: From a trinuclear cluster [Mn3(PhCO2)6(THF)4] to a unique [Mn(PhCO2)2]n chiral 3D network
Kornowicz, Arkadiusz,Komorski, Szymon,Wrobel, Zbigniew,Justyniak, Iwona,Nedelko, Natalia,Slawska-Waniewska, Anna,Balawender, Robert,Lewinski, Janusz
supporting information, p. 3048 - 3051 (2014/03/21)
An efficient synthetic procedure for obtaining manganese carboxylates including a trinuclear cluster [Mn3(PhCO2) 6(THF)4]2 and a unique [Mn(PhCO 2)2]n chiral 3D network is reported. The procedure involves a simple redox process, in which acidic protons are reduced to gaseous hydrogen by oxidizing metallic manganese under solvothermal conditions.
Manganese clusters derived from 2-pyridylcyanoxime: New topologies and a large spin ground state in pyridyloximate chemistry
Alcazar, Laura,Cordero, Beatriz,Esteban, Jordi,Tangoulis, Vassilis,Font-Bardia, Merce,Calvet, Teresa,Escuer, Albert
, p. 12334 - 12345 (2013/09/02)
Series of manganese clusters derived from 2-pyridylcyanoxime with Mn 3II (1), Mn4II (2a, b), Mn II4MnIII4 (3), MnII 2MnIII6MnIV2 (4) and MnII3MnIII6MnIV (5) cores have been characterized. Dc magnetic measurements reveal antiferromagnetic coupling for 1-4 and dominant ferromagnetic interactions for 5 which shows the largest ground state reported to date in pyridyloximate chemistry (S = 14).
THE DIRECT ELECTROCHEMICAL SYNTHESIS OF SOME TRANSITION METAL CARBOXYLATES
Kumar, N.,Tuck, Dennis G.,Watson, Katherine D.
, p. 740 - 743 (2007/10/02)
The transition metal carboxylates M(O2CR)n (M=Cr, R=C2H5, C6H5, n=3; M=Mn, Fe, Ni, R=CH3, C2H5, C6H5, n-C7H15, n=2, not all combinations) have been prepared by oxidising suitable metal anodes electrochemically in solutions of RCOOH in acetonitrile.With Co and Cu, a wide range of carboxylic acids (R=C2H5, c-C3H5, c-C5H9, C6H5, n-C4H9, n-C7H15, 2-ethylhexanoic, oleic, linoleic) has been used succesfully to give M(O2CR)2.The advantages of the method are discussed.The preparation of Cu(O2CR)2 involves the prior formation of CuO2CR at the anode, followed by oxidation by the solvent.
Thermal analysis of some metal n-benzoyl-n-phenylhydroxylamine chelates
Meyer, Raymond A.,Hazel, J.Frederic,McNabb, Wallace M.
, p. 419 - 425 (2008/10/08)
The preparation and thermal analysis of the metal chelates of N-benzoyl-N-phenylhydroxylamine (BPHA) with Al(III), Cd(II), Co(II), Cr(III), Cu(II), Fe(III), Mn(II), Ni(II) and Zn(II) is discussed. The differential thermal analysis apparatus is described i
