Synthesis and structure of new polynuclear cobalt(ii) complexes with 3,5-di-tert-butylbenzoic acid anions

Egorov, E. N.; Кискин, М. А.; Сидоров, А. А.; Еременко, И. Л.

doi:10.1007/s11172-013-0277-9

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…(the solvate molecules were eliminated using the SQUEEZE program due to disordering) ( Figure 1, a). In the structure of complex I, the metal atoms are arranged linearly (Cd(1)…Cd(2) 3.6173(4) Å, Cd (2) 2 Earlier, a trinuclear cobalt(II) complex [Co 3 (EtOH) 2 (bzo) 6 ] with a similar structure [19] was described. However, it differed in the composition and molecular structure due to the different environment of Co(II) ions (the CN of cobalt is 6, and that of peripheral atoms is 5), which is probably a result of the difference in the covalent radii of the Co and Cd ions, and hence, the volumes of the coordination sphere of each ion.…”

Section: X-ray Single Crystal Structurementioning

confidence: 99%

Chemical Assembling of Heterometallic {Cd–M} (M=Li, Mg, Eu, Tb) Molecules with 3,5‐Di‐tert‐butylbenzoate Bridges and N‐Donor Ligands

et al. 2020

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It was shown that the reaction of potassium 3,5‐di‐tert‐butylbenzoate (Kbzo) and Cd(NO3)2 in EtOH gave the [Cd3(H2O)(EtOH)3(bzo)6]⋅EtOH complex (I). The use of Li(bzo) or Mg(bzo)2 salts in this reaction in the presence of excess 2,4‐lutidine or a stoichiometric amount of 1,10‐phenanthroline initiated the crystallization of the polymer [CdLi2(H2O)(EtOH)2(bzo)4]n (II) containing no N‐donor ligands or trinuclear complexes [Cd2Mg(bzo)6(L)2]⋅Solv (L, Solv=lut, 2EtOH (III); phen, 6CH2Cl2 (IV)) that included coordinated N‐donors. The use of Eu(bzo)3 as the source of Ln ions in the presence of a stoichiometric amount of lut gave trinuclear carboxylates [EuCd2(H2O)2(EtOH)2(bzo)7]⋅3EtOH (V) and [TbCd2(H2O)(EtOH)3(bzo)7]⋅2EtOH⋅2.7H2O (VI) containing no lut molecules. It was found that the incorporation of coordinated N‐donors was observed only if a 10‐fold excess of pyridine or a stoichiometric amount of 2,2’‐dipyridyl was added to the reaction medium in the presence of Ln(NO3)3⋅6H2O (Ln=Eu, Tb) or Ln(bzo)3, respectively. In these cases, trinuclear {Cd−Ln} complexes were formed, which contained a terminal N‐donor ligand, [LnCd2(bzo)6(NO3)(py)4]⋅1.5MeCN (Ln=Eu (VII), Tb (VIII)), [EuCd2(H2O)(bzo)7(bpy)2]⋅2THF⋅3H2O⋅MeCN (IX) and [TbCd2(H2O)(bzo)7(bpy)2] (X)). The structures of the new compounds were determined by single‐crystal X‐ray diffraction analysis. The complexes were characterized by luminescence spectroscopy, IR spectra, CHN‐analysis and fluorescence analysis.

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Section: X-ray Single Crystal Structurementioning

confidence: 99%

Chemical Assembling of Heterometallic {Cd–M} (M=Li, Mg, Eu, Tb) Molecules with 3,5‐Di‐tert‐butylbenzoate Bridges and N‐Donor Ligands

et al. 2020

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“…Previously, we prepared the nickel(II) binuclear complex [Ni 2 (bbz) 4 (2,3-lut) 2 ] [23] with sterically demanding anions of 3,5-di-tert-butyl benzoic acid (Hbbz), and the trinuclear cobalt complex [Co 3 (bbz) 6 (EtOH) 2 ] [24]. In order to obtain a binuclear cobalt complex with a bulk anion of a similar structure, we used 3,5-di(tert-butyl)-4-hydroxybenzoic acid (hbhbz).…”

Section: Introductionmentioning

confidence: 99%

Cobalt(II) Paddle-Wheel Complex with 3,5-Di(tert-butyl)-4-hydroxybenzoate Bridges: DFT and ab initio Calculations, Magnetic Dilution, and Magnetic Properties

Astaf’eva,

Nikolaevskii,

Egorov

et al. 2024

Crystals

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A new binuclear "paddle-wheel" complex, [Co2(bhbz)4(EtOH)2]·4EtOH (1, Hbhbz-3,5-di(tert-butyl)-4-hydroxybenzoic acid); an isostructural zinc complex (2); a and magnetically diluted sample of [Zn1.93Co0.07(bhbz)4(EtOH)2]·4EtOH (3) were obtained. Molecular structures of 1 and 2 were determined by single-crystal X-ray diffraction. DFT calculations for 1 indicate strong Co-Co antiferromagnetic exchange interactions in the binuclear fragment. It was shown that when one paramagnetic ion in the binuclear molecule is replaced by a diamagnetic zinc(II) ion, the remaining cobalt(II) ion can be considered as an isolated center with magnetic anisotropy, the parameters of which are determined by ab initio calculations. Magnetic properties for samples 1 and 3 were investigated and analyzed in detail.

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Syntheses and structures of heterometallic complexes M-Co(II) (M = Li(I), Mg(II), and Eu(III)) with anions of 2-naphthoic acid. An influence of the heterometal on the structure of the complex

et al. 2015

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Synthesis and structure of new polynuclear cobalt(ii) complexes with 3,5-di-tert-butylbenzoic acid anions

Cited by 5 publications

References 21 publications

Chemical Assembling of Heterometallic {Cd–M} (M=Li, Mg, Eu, Tb) Molecules with 3,5‐Di‐tert‐butylbenzoate Bridges and N‐Donor Ligands

Chemical Assembling of Heterometallic {Cd–M} (M=Li, Mg, Eu, Tb) Molecules with 3,5‐Di‐tert‐butylbenzoate Bridges and N‐Donor Ligands

Cobalt(II) Paddle-Wheel Complex with 3,5-Di(tert-butyl)-4-hydroxybenzoate Bridges: DFT and ab initio Calculations, Magnetic Dilution, and Magnetic Properties

Syntheses and structures of heterometallic complexes M-Co(II) (M = Li(I), Mg(II), and Eu(III)) with anions of 2-naphthoic acid. An influence of the heterometal on the structure of the complex

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