Chemistry Journal of Moldova

Inorganic and coordination chemistry

Author(s):

Viorina Gorinchoy, Olesea Cuzan, Sergiu Shova, Vasile Lozan


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2024 Volume 19, no.1
Pages: 62-68
Keywords: oxo-carboxylate, iron(III), calcium(II), heteronuclear cluster, salicylic acid, s-d metals.
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https://doi.org/10.19261/cjm.2024.1168

Abstract (PDF)
Graphical Abstract:
A new heterometallic iron(III) compound, derivative of salicylic acid, catena–poly[bis(methanol)-bis(N,N–dimethylacetamide)–tris(m–salicylato)–bis(m–salicyl)–dicalcium(II) iron(III)], has been synthesized and characterized by infrared spectroscopy, single-crystal X-ray diffraction and elemental analysis. Single-crystal X-ray diffraction study revealed that synthesized compound forms an 1D coordination polymer with general formula {[FeCa2(Sal)2(SalH)3 (DMA)2(CH3OH)2]}n. The compound crystallizes in the P21/c space group of the monoclinic system with the following unit cell parameters: а= 9.76785(9), b= 37.3386(4), c= 13.82575(12) Å, β= 103.6421(9)°, Z= 4. The independent unit cell of the obtained compound contains one iron and two calcium ions, in which the iron(III) ion has an octahedral coordination sphere. The different coordination modes of the five molecules of salicylic anions revealed by IR analysis were confirmed by X-ray studies, showing that the salicylate anions play the role of bridging ligands and coordinate in three different ways, thus the carboxylic group forms bridges through three different coordination pathways, namely: bidentate, tridentate and pentadentate fashion.



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Author(s):

Eleonora Afanasenko, Inna Seifullina, Elena Martsinko, Viktoriya Dyakonenko, Svitlana Shishkina


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2023 Volume 18, no.2
Pages: 61-68
Keywords: supramolecular chemistry, germanium, coordination compound, structure, biological activity
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https://doi.org/10.19261/cjm.2023.1121

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Supplementary Material (PDF)

Graphical Abstract: The present study extends the research and describes synthesis strategy, structural properties and biological activity of complex compound (HPhen)4[(µ-O){Ge2(OH)(µ-Tart)2}2]·9H2O, which comprises a tartratogermanate anion and the protonated form of 1,10-phenanthroline as the cationic component.




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Author(s):

Natalia Talmaci, Diana Dragancea, Elena Gorincioi, Pavlina Bourosh, Victor Kravtsov


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2023 Volume 18, no.2
Pages: 53-60
Keywords: carbohydrazide, o-vanillin, syn-anti isomer, X-ray diffraction, NMR spectroscopy.
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Abstract (PDF)
Supplementary Material (PDF)
 
Graphical Abstract: The crystal structure of 1,5-bis(2-hydroxy-3-methoxybenzylidene) carbonohydrazide was determined by X-ray single crystal diffraction study. In solid-state the molecule adopts the anti keto conformation, while NMR studies proved evidence on the presence of its syn tautomer in DMSO solution. 



 



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Author(s):

Masahiro Mikuriya, Shun Kawauchi, Ryoji Mitsuhashi, Motohiro Tsuboi, Makoto Handa


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2023 Volume 18, no.1
Pages: 77-85
Keywords: dinuclear ruthenium carboxylate, tetracyanidoaurate, heterometal complex, X-ray crystallography, magnetic property.
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https://doi.org/10.19261/cjm.2023.1059

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Graphical Abstract:
A heterometal complex [RuIIRuIII(n-C3H7COO)4AuIII(CN)4]n was synthesized. The X-ray crystallography elucidated a chain molecule of alternating arrangement of Ru2(n-C3H7COO)4+ and Au(CN)4– units with cis-bridging mode. Magnetic susceptibility data showed that magnetic interaction between RuIIRuIII units (S= 3/2) is negligible small with a zero-field splitting parameter D of 60 cm–1







Downloads: 82

Author(s):

Irina Voda


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2023 Volume 18, no.1
Pages: 70-76
Keywords: coordination polymer, X-ray diffraction, zinc, 1,2,3-benzenetricarboxylic acid, 4,4ʹ-bis(imidazol-1-ylmethyl)biphenyl.
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Abstract (PDF)
Graphical Abstract:
The use of a pillar bridging ligand coordinating through two imidazole rings and multidentate carboxylate ligand with zinc(II) generates a bidimentional coordination polymer {[Zn3(BIBPh)3(BTC)2]∙H2O}n. It has been structurally characterised and investigated by IR and thermogravimetric methods. Each metal ion is four coordinated exhibiting a slightly distorted tetrahedral coordination. 


 


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Author(s):

Dumitru Ureche, Ion Bulhac, Sergiu Shova, Paulina Bourosh


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2022 Volume 17, no.2
Pages: 62-72
Keywords: dianilineglyoxime, zinc complex, nickel unidimensional coordination polymer, benzenedicarboxylic acid, X-ray crystallography.
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Two coordinating compounds of zinc(II) (1) [Zn2(DAnH2)2(1,3-bdc)2(DMSO)4] and nickel(II) (2) [Ni(DAnH2)(1,4-bdc)(DMF)2]n were obtained based on dianilineglyoxime (DAnH2), 1,3-benzenedicarboxylic acid (1,3-bdcH2) and 1,4-benzenedicarboxylic acid (1,4-bdcH2), where DMSO is dimethylsulfoxide and DMF is dimethylformamide. The molecular and crystalline structure of reported compounds were established by infrared spectroscopy and single crystal X-ray diffraction, and for 1, additionally, the 1H and 13C NMR spectroscopy was used. According to data, the Zn(II) molecular complex is a binuclear and the Ni(II) is a 1D polymer compound. 


 


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Author(s):

Ozan Süleyman Ürgüt, Aydin Tavman, Muazzez Gürgan Eser


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2022 Volume 17, no.2
Pages: 73-83
Keywords: azomethine, binuclear complex, organometallic, transition metal complex, antibacterial activity.
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Abstract (PDF)
Supplementary Material (PDF)

Graphical Abstract: 6-Chloro-2-ferrocenyl-1H-benzimidazole and (E)-((4-chloro-2-hydroxyphenylimino)methyl)ferrocene ligands and their Fe(III), Co(II), Cu(II), Zn(II) and Pd(II) complexes were synthesized. The structure of ligands and metal complexes has been investigated by different methods. In addition, magnetic moment, molar conductivity measurements and antibacterial activity of the ligands and the complexes were investigated.


 


Downloads: 89

Author(s):

Grigore Timco, Robin Pritchard, George Whitehead, Richard Winpenny


Field: Inorganic and coordination chemistry
Type: Invited paper
Issue: 2022 Volume 17, no.1
Pages: 9-17
Keywords: chromium, carboxylate, polymetallic ring, crystallography.
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Abstract (PDF)
Graphical Abstract: Four new {Cr8} rings have been synthesized and characterized; they are all based on the classic [CrF(O2CtBu)2]8 ring 1. Three routes have been studied. The first is direct synthesis, by reacting hydrated chromium(III) fluorides with the acid; this has been used to produce  [CrF(O2CEt)2]8 3. The second route uses 3 as a precursor and substitute with an incoming carboxylate. This has been used to make [CrF(O2CCCl3)2]8 4 and [CrF(O2CC6F5)2]8 5. The third route uses 
N-ethyl-D-glucamine (H5Etglu) as a template and produces chiral rings [Cr8F4(Etglu)(O2CtBu)15] 6. The single crystal X-ray structures of these new compounds are reported.


 


Downloads: 139

Author(s):

Viorina Gorinchoy, Olesea Cuzan, Silvia Melnic, Oleg Petuhov, Sergiu Shova


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2021 Volume 16, no.2
Pages: 66-75
Keywords: heteronuclear μ3-oxo complex, Fe2Cr cluster, X-ray diffraction, thermal analysis.
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Abstract (PDF)
Graphical Abstract:
Two new μ3-oxo trinuclear heterometallic Fe2IIICrIII complexes with furan-2-carboxylic and salicylic acids with the composition: [Fe2CrO(C4H3OCOO)6(CH3OH)3]NO3·0.5CH3OH and [Fe2CrO(C6H4(OH)COO)7(CH3OH)2]·2DMA were synthesized starting from iron(III) and chromium(III) salts mixture. The complexes structures were confirmed by elemental analysis, IR, Mössbauer spectroscopies, and X-ray analysis. The atomic absorption spectroscopy confirmed that the iron: chromium ratio is 2:1. The thermal properties of both heteronuclear complexes have been investigated in oxidizing and inert atmospheres revealing the stability of the trinuclear core up to 170 and 220°C, respectively.


 


Downloads: 97

Author(s):

Valeriia Zozulia, Vladimir Ovchynnikov, Tetiana Slyva, Julia Rusanova, Volodymyr Amirkhanov


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2021 Volume 16, no.2
Pages: 58-65
Keywords: carbacylamidophosphate, synthesis, zinc, complex, crystal structure.
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Graphical Abstract: The novel binuclear Zn(II) complex of general formula Zn2(L)4(CH3OH)2 where HL is N-[bis(benzylamino)phosphoryl]-2,2,2-trichloroacetamide has been synthesized from non-aqueous solution and characterized by elemental analysis, FTIR and NMR spectroscopy as well by X-ray single crystal diffraction. This complex represents the third example of binuclear complexes with this ligand within four known for today.


 


Downloads: 63