Linear trinuclear manganese(II) complexes: crystal structures and magnetic properties

Baca, Svetlana G.; Sevryugina, Yulia; Clérac, Rodolphe; Malaestean, Iurii L.; Gérbéléu, N. V.; Petrukhina, Marina A.

doi:10.1016/j.inoche.2005.02.004

Cited by 37 publications

(29 citation statements)

References 23 publications

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“…The Mn–N bond distances range from 2.2091(17) to 2.2670(2) Å, which is close to the values reported for manganese trinuclear complexes with 2,2′-bipyridine, acetate [33], 2-chloroacetate [38], and isobutyrate [32] ions.…”

Section: Resultssupporting

confidence: 81%

“…The trinuclear linear compound [Mn 3 (2,2′-bipy) 2 (C 3 H 3 O 2 ) 6 ] is framed in structural prototype presented in literature [Mn 3 (RCOO) 6 (N–N) 2 ], where:RCOO − is the anion of isobutyrate and N–N is 1,10-phenantroline/2,2′-bipyridine [32];RCOO − is the acetate ion, while N–N is 2,2′-bipyridine [33], 1,10-phenantroline [34], 2,2′-bis(1-methylimidazolyl)-phenylmetoxymethane [35], 2-(2-pyridyl)benzimidazole [36], N -(1,3-dimethylimidazolidin-2-ylidene)quinolin-8-amine [37];RCOO − is chloroacetate and N–N is 2,2′-bipyridine [38]. …”

Section: Resultsmentioning

confidence: 99%

“…This coordination behavior of carboxylate ligands is encountered mainly in trinuclear linear complexes similar to this one [32,37,38,39,41]. …”

Section: Resultsmentioning

confidence: 99%

“…The reported Mn … Mn distances (3.4682(1) Å for Mn1 … Mn2 and 3.4848(1) Å for Mn2 … Mn3) are shorter than those reported in the cases of [Mn 3 (O 2 CCH 3 ) 6 (bpy) 2 ], [Mn 3 (O 2 CCH 2 Cl) 6 (bpy) 2 ], and [Mn 3 (O 2 CCH(CH 3 ) 2 ) 6 (dpa) 2 ]·2MeCN complexes (3.614, 3.624, and 3.611(4) Å, respectively) [33,38,43], and almost equal to those from analogous isobutyrate complexes with 2,2′-bipyridine (3.4894(3) Å) [32]. The Mn–N bond distances range from 2.2091(17) to 2.2670(2) Å, which is close to the values reported for manganese trinuclear complexes with 2,2′-bipyridine, acetate [33], 2-chloroacetate [38], and isobutyrate [32] ions.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2′-Bipyridine

Scăeţeanu

Chifiriuc

Bleoţu³

et al. 2018

Molecules

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The synthesis, structural characterization, cytotoxicity, and antimicrobial properties of four new complexes formed by employing acrylate anion and 2,2′-bipyridine are reported herein. X-ray crystallography revealed the trinuclear nature of [Mn3(2,2′-bipy)2(C3H3O2)6] (1), meanwhile complexes with general formula [M(2,2′-bipy)(C3H3O2)2(H2O)x]∙yH2O ((2) M: Ni, x = 1, y = 0; (3) M: Cu, x = 1, y = 0; (4) M: Zn, x = 0, y = 1; 2,2′-bipy: 2,2′-bipyridine; C3H3O2: acrylate anion) were shown to be mononuclear. The lowest minimum inhibitory concentration (MIC) of 128 μg mL−1 was recorded for all four tested complexes against Candida albicans, for complex (3) against Escherichia coli, and for complex (4) against Staphylocococcus aureus. Compounds (3) and (4) were also potent efflux pumps activity inhibitors (EPI), proving their potential for use in synergistic combinations with antibiotics. Complexes (1)–(4) revealed that they were not cytotoxic to HCT-8 cells. They also proved to interfere with the cellular cycle of tumour HCT-8 cells by increasing the number of cells found in the S and G2/M phases. Taken together, these results demonstrate the potential of zinc and copper complexes for use in the development of novel antimicrobial and anti-proliferative agents.

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Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

“…This coordination behavior of carboxylate ligands is encountered mainly in trinuclear linear complexes similar to this one [32,37,38,39,41]. …”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2′-Bipyridine

Scăeţeanu

Chifiriuc

Bleoţu³

et al. 2018

Molecules

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“…The three compounds show analogous magnetic behaviour. At 300 K, the χ M T values are 13 On the basis of the structure of these compounds and Kambe's vector coupling scheme (Scheme 1), [46] the spin Hamiltonian considered would be H = -J(S 1 ·S 2 + S 2 ·S 3 ) -J 13 (S 1 ·S 3 ), where it is assumed that J 12 = J 13 = J. However, because of the large distance between the terminal manganese ions in the linear complex, Mn 1 ···Mn 3 , their magnetic interaction is negligible (J 13 = 0) [19,21] and only the Mn 1 ···Mn 2 and Mn 2 ···Mn 3 interactions (J) are considered.…”

Section: Magnetic Measurementsmentioning

confidence: 99%

Versatility in the Coordination Modes of n‐Chlorobenzoato Ligands: Synthesis, Structure and Magnetic Properties of Three Types of Polynuclear Mn^II Compounds

Gómez

Corbella

2009

Eur J Inorg Chem

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Three different types of polynuclear manganese(II) compounds with chlorobenzoato bridges were obtained from the reaction of Mn(n-ClC 6 H 4 COO) 2 with 1,10-phenanthroline (phen): three trinuclear compounds [Mn 3 (µ-n-ClC 6 H 4 COO) 6 -(phen) 2 ] with n = 2, 3, 4 (1-3), one one-dimensional system [Mn(µ-3-ClC 6 H 4 COO) 2 (phen)] n (4) and one neutral dinuclear compound [{Mn(4-ClC 6 H 4 COO)(phen)} 2 (µ-4-ClC 6 H 4 COO) 2 -(µ-H 2 O)] (5). Compounds 1, 3, 4 and 5 were characterized by X-ray diffraction and show four different coordination modes for the carboxylate ligand: as a bidentate bridge in a syn-syn mode or syn-anti mode, as a monodentate bridge and as a terminal monodentate ligand. The five compounds show weak antiferromagnetic coupling; the J values are -2

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Delicate Crystal Structure Changes Govern the Magnetic Properties of 1D Coordination Polymers Based on 3d Metal Carboxylates

Gavrilenko

Cador

Bernot

et al. 2008

Chemistry A European J

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Homo- and heterometallic 1D coordination polymers of transition metals (Co II, Mn II, Zn II) have been synthesized by an in-situ ligand generation route. Carboxylato-based complexes [Co(PhCOO)2]n (1 a, 1 b), [Co(p-MePhCOO)2]n (2), [ZnMn(PhCOO)4]n (3), and [CoZn(PhCOO)4]n (4) (PhCOOH=benzoic acid, p-MePhCOOH=p-methylbenzoic acid) have been characterized by chemical analysis, single-crystal X-ray diffraction, and magnetization measurements. The new complexes 2 and 3 crystallize in orthorhombic space groups Pnab and Pcab respectively. Their crystal structures consist of zigzag chains, with alternating M(II) centers in octahedral and tetrahedral positions, which are similar to those of 1 a and 1 b. Compound 4 crystallizes in monoclinic space group P2 1/c and comprises zigzag chains of M II ions in a tetrahedral coordination environment. Magnetic investigations reveal the existence of antiferromagnetic interactions between magnetic centers in the heterometallic complexes 3 and 4, while ferromagnetic interactions operate in homometallic compounds (1 a, 1 b, and 2). Compound 1 b orders ferromagnetically at TC=3.7 K whereas 1 a does not show any magnetic ordering down to 330 mK and displays typical single-chain magnet (SCM) behavior with slowing down of magnetization relaxation below 0.6 K. Single-crystal measurements reveal that the system is easily magnetized in the chain direction for 1 a whereas the chain direction coincides with the hard magnetic axis in 1 b. Despite important similarities, small differences in the molecular and crystal structures of these two compounds lead to this dramatic change in properties.

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Linear trinuclear manganese(II) complexes: crystal structures and magnetic properties

Cited by 37 publications

References 23 publications

Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2′-Bipyridine

Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2′-Bipyridine

Versatility in the Coordination Modes of n‐Chlorobenzoato Ligands: Synthesis, Structure and Magnetic Properties of Three Types of Polynuclear Mn^II Compounds

Delicate Crystal Structure Changes Govern the Magnetic Properties of 1D Coordination Polymers Based on 3d Metal Carboxylates

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Linear trinuclear manganese(II) complexes: crystal structures and magnetic properties

Cited by 37 publications

References 23 publications

Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2′-Bipyridine

Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2′-Bipyridine

Versatility in the Coordination Modes of n‐Chlorobenzoato Ligands: Synthesis, Structure and Magnetic Properties of Three Types of Polynuclear MnII Compounds

Delicate Crystal Structure Changes Govern the Magnetic Properties of 1D Coordination Polymers Based on 3d Metal Carboxylates

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Versatility in the Coordination Modes of n‐Chlorobenzoato Ligands: Synthesis, Structure and Magnetic Properties of Three Types of Polynuclear Mn^II Compounds