Preparation and characterization of novel cyclic tetranuclear manganese (III) complexes: MnIII4(X-salmphen)6 (X-salmphenH2 = N,N′-di-substituted-salicylidene-1,3-diaminobenzene (X = H, 5-Br)

Torayama, Hitoshi; Nishide, Tamao; Asada, Hideyuki; Fujiwara, Manabu; Matsushita, Takayuki

doi:10.1016/s0277-5387(97)00148-4

Cited by 66 publications

(15 citation statements)

References 21 publications

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“…In recent years, there has been a considerable interest in the chemistry of antipyrine and its derivatives [17][18][19]. Schiff bases of 4-antipyrine and its complexes have a variety of applications in the biological, clinical, analytical and pharmacological areas [20,21]. Although ambidentate ligands were examined in numerous studies, only one study has reported on benzocrown ether-4-antipyrine containing Schiff bases [22].…”

Section: Introductionmentioning

confidence: 99%

Preparation and spectroscopic characterization of iron(II) and copper(II) complexes of a functionalized crown ether

Hayvalı

2008

Transition Met Chem

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Condensation between 4 0 -aminobenzo-15-crown-5-and 4-antipyrinecarboxaldehyde yielded the functionalized crown ether (L = 1,5-dimethyl-4- [(2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin-A 1:1 (Na ? :L) complex has been prepared. The reaction of Fe(II) and Cu(II) salts with L gave complexes of composition [Fe(L)Cl 2 ] and [Cu(L) 2 Cl 2 ]. Heteronuclear complexes [Fe(L)Cl 2 Na]ClO 4 and [Cu(L) 2 Cl 2 Na]ClO 4 have also been synthesized from the reactions of [Fe(L)Cl 2 ] and [Cu(L) 2 Cl 2 ] with NaClO 4 . The compounds have been characterized by microanalyses and spectroscopic methods.

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Section: Introductionmentioning

confidence: 99%

Preparation and spectroscopic characterization of iron(II) and copper(II) complexes of a functionalized crown ether

Hayvalı

2008

Transition Met Chem

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“…The synthesised ligands (L 1 and L 2 ) have been characterised by [(C.H.N), FT-IR, 1 H, 13 CNMR, UV-Vis] spectroscopic method. The molar conductance of (10 -3 M) in DMSO solutions of prepared complexes indicate the(1:2 electrolytes) for (L 1 )and non-electrolytic for (L 2 ) complexes, data are presented in Table (5).…”

Section: Resultsmentioning

confidence: 99%

“…Now there are new studies attracting the attention of biochemists around new types of Schiff bases derivative from 4-aminoantipyrineand its complexes, generally because of their use in the assortment of applications in analytical biological, pharmacological, clinical areas and especially chemotherapeutic applications [1][2][3]. The precedent literatureex plains increasing activity for organic compounds used drugs when they are treated as metal complexes [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Biological Activity of Schiff Bases Chelates with Mn(II),Co(II),Ni (II),Cu(II) and Hg(II)

Journal¹

2017

Baghdad Sci.J

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In this paper, some series of new complexes of Mn(II), Co(II), Ni (II) Cu(II) and Hg(II) are prepared from the Schiff bases (L1,L2). (L1) derived from 4-aminoantipyrine and O-phenylene dia mine then (L2) derived from (L1) and 2-benzoyl benzoic acid. Structural features are obtained from their elemental microanalyses, molar conductance, IR, UV–Vis, 1H, 13CNMR spectra and magnetic susceptibility. The magnetic susceptibility and UV–Vis, IR spectral data of the ligand (L1) complexes get square–planar and tetrahedral geometries and the complexes oflig and (L2) get an octahedral geometry. Antimicrobial examinations show good results in the sharing complexes.

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“…Thanks to their biological activity, iron(III) complexes with Schiff 's bases play an important role in medicine [51], as models of iron-containing enzymes in coordination chemistry [52]. Researchers pay special attention to mixed-ligand complexes (that contain N, O and/or S donor atoms) because of their anti-tumour, antifungal and antibacterial activity [53].…”

Section: Magnetothermal Properties In Compounds With Schiff's Basesmentioning

confidence: 99%

Magnetocaloric Effect in Carbon-Containing Compounds

Korolev¹,

Ломова²,

Ramazanova³

2019

RENSIT

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The review is devoted to carbon-containing compounds with magnetic properties. It considers recent developments in the problem of synthesis and studying physico-chemical properties of single-molecule magnets (SMMs). It is shown that single-molecule magnets, such as graphene and its donor-acceptor complexes, metal complexes with Schiff 's bases, paramagnetic high-spin complexes of porphyrins/phthalocyanines, as well as 3D nanoparticles of metal oxides and hybrid composites of magnetic nanoparticles with graphene have a large and even giant magnetocaloric effect at temperatures close to room conditions, i.e. beyond the temperature range of magnetic transitions. For the first time, the behaviour of such molecular materials has been determined by a direct method on an original microcalorimetric apparatus and the first data on the interconnection between the chemical structure of their molecules and magnetothermal properties have been obtained.

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Preparation and characterization of novel cyclic tetranuclear manganese (III) complexes: MnIII4(X-salmphen)6 (X-salmphenH2 = N,N′-di-substituted-salicylidene-1,3-diaminobenzene (X = H, 5-Br)

Cited by 66 publications

References 21 publications

Preparation and spectroscopic characterization of iron(II) and copper(II) complexes of a functionalized crown ether

Preparation and spectroscopic characterization of iron(II) and copper(II) complexes of a functionalized crown ether

Synthesis, Characterization and Biological Activity of Schiff Bases Chelates with Mn(II),Co(II),Ni (II),Cu(II) and Hg(II)

Magnetocaloric Effect in Carbon-Containing Compounds

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