Chemistry Journal of Moldova

Inorganic and coordination chemistry

SYNTHESIS AND CRYSTAL STRUCTURE OF BIS(CITRATO)GERMANATE AND STANNATE WITH TRIS(PHENANTHROLINE)NICKEL(II) CATION

Author(s):

Elena Martsinko, Inna Seifullina, Elena Chebanenko, Olha Pirozhok, Viktoriya Dyakonenko, Svitlana Shishkina


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.2
Pages: 56-62
Keywords: citric acid, 1,10-phenanthroline, germanium(IV), tin(IV), nickel(II) complex.
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DOI: http://dx.doi.org/10.19261/cjm.2018.513  

Abstract (PDF) 
Graphical Abstract: The new complexes [Ni(phen)3][Ge(HCit)2]•2H2O (1), [Ni(phen)3][Sn(HCit)2]•3H2O (2) (where phen is 1,10-phenanthroline, H4Cit is citric acid) were obtained. The identity, composition, and thermal stability of the complexes were established by elemental analysis, thermogravimetry, and IR spectroscopy. According to the X-ray diffraction data, the bis(citrate)germanate / bis(citrate)stannate [Ge/Sn(HCit)2]2- carries out the role of the dianion while two halves of the nickel complexes with phenanthroline [Ni(Phen)3]2+ are cations.


 

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SYNTHESIS AND X-RAY CHARACTERISATION OF A NEW MIXED-VALENCE TRINUCLEAR IRON CLUSTER

Author(s):

Olesea Cuzan-Munteanu, Silvia Melnic, Sergiu Shova


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.2
Pages: 48-55
Keywords: iron cluster, mixed valence, X-ray analysis, µ3-oxo, crystal structure, hydrogen bond.
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DOI: http://dx.doi.org/10.19261/cjm.2018.504

Abstract (PDF) 
Graphical Abstract: This paper reports on the synthesis of a new trinuclear homometalic mixed-valent iron carboxylate cluster with furan-2-carboxylic acid. The complex with the formula [Fe2IIIFeIIO(C4H3OCOO)6(H2O)3]∙0.5CH3CN•2.25H2O was characterized by X-ray analysis that revealed that the compound crystalizes in the triclinic centrosymmetric group P-1, with the following unit cell parameters: a = 10.2758(6)Å, b = 11.5991(9) Å, c = 19.7349(15) Å, α = 105.060(7)°, β =  94.216(6)°, γ = 101.662(6)°.


 

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NMR STUDIES OF SOME Zn AND Cd COORDINATION COMPOUNDS BEARING 1,2-CICLOHEXANEDIONEDIOXIME

Author(s):

Elena Gorincioi, Eduard Coropceanu


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.2
Pages: 38-47
Keywords: NMR, zinc, cadmium, oxime, homodinuclear complex, coordination polymer.
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DOI: http://dx.doi.org/10.19261/cjm.2018.368

Abstract (PDF) 
Graphical Abstract: A series of homobi- and polynuclear zinc and cadmium coordination compounds supported by 1,2-cyclohexanedionedioxime and bridging bidentate ligands: 4,4'-bipyridyl, 1,2-bis(4-pyridyl) ethane, 1,3-bis(4-pyridyl) propane and dipiridil sulfide were characterized by the experimental techniques of 1H and 13C NMR spectroscopy. Individual NMR data of compounds are consistent with their assignment as complexes.


 

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LUMINESCENT THIN FILMS BASED ON N-(DIPHENYLPHOSPHORYL)BENZAMIDE EuIII AND TbIII COMPLEXES FOR LIGHT EMITTING DIODE TECHNOLOGY

Author(s):

Nataliia Kariaka, Olena Litsis, Yuriy Kolomzarov, Paula Gawryszewska, Sergii Smola, Nataliia Rusakova, Victor Trush, Tatiana Sliva, Vladimir Amirkhanov


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.1
Pages: 54-62
Keywords: lanthanide complex, photoluminescence, carbacylamidophosphate, chelate ligand, thin film.
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DOI: http://dx.doi.org/10.19261/cjm.2018.473
 
Abstract (PDF)
Graphical Abstract: The lanthanides coordination compounds LnL3, LnL3Phen and LnL3Dipy with bulky aryl-functionalised carbacylamidophosphate (CAPh) ligand N-(diphenylphosphoryl)benzamide (HL=PhC(O)N(H)P(O)Ph2) were synthesized for luminescent thin films producing. The films were obtained by vacuum evaporation and spin coating methods and exhibited intensive monochromatic photoemission with decay times equal to 0.78 1.34 ms.



 

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HETEROTRINUCLEAR [Fe2IIINiII]-µ3-OXO-CLUSTER BASED ON SALICYLIC ACID. SYNTHESIS, STRUCTURE AND PHYSICO-CHEMICAL PROPERTIES

Author(s):

Viorina Gorinchoy, Vera Zubareva, Elena Melnic, Victor Kravtsov


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.1
Pages: 46-53
Keywords: heterotrinuclear μ3-oxo complex, X-ray, IR analysis, Mössbauer spectrum, TG data.
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DOI: http://dx.doi.org/10.19261/cjm.2018.483
 
Abstract (PDF)
Graphical Abstract: The reaction between iron and nickel salts with ammonium salicylate results in the formation of a new trinuclear heterometallic complex 
[hexa-µ2-salicylato-µ3-oxo-(methanol)(dimethylformamide) aquadiiron(III) nickel(II)] methanol dimethylformamide. The synthesized [Fe2NiO(SalH)6(CH3OH)(DMF)(H2O)]•DMF•CH3OH complex crystallizes in the monoclinic space group C2/c. The IR and Mössbauer spectra and thermal properties were studied.

 
 

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OXIDO- AND DIOXIDOVANADIUM(V) COMPLEXES WITH O-VANILLIN SEMICARBAZONE: SYNTHESIS AND CRYSTAL STRUCTURE

Author(s):

Lidia Cuba, Paulina Bourosh, Victor Kravtsov, Elena Gorincioi, Diana Dragancea


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.1
Pages: 36-45
Keywords: oxidovanadium(V), dioxidovanadium(V), o-vanillin semicarbazone, NMR spectroscopy, X-ray diffraction study.
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DOI: http://dx.doi.org/10.19261/cjm.2018.477   

Abstract (PDF)
Supplementary Material (PDF)
Graphical Abstract: Two vanadium(V) complexes comprising VO3+ and VO2+ cores with o-vanillin semicarbazone (H2L) have been synthesized and characterized by IR, NMR spectroscopies and single-crystal X-ray diffraction study. The coordination polyhedra are a O5N distorted octahedron in the mono-oxidovanadium complex [VO(HL)(EtO)(EtOH)0.6(H2O)0.4][VO(HL)(SO4)(EtO)]•0.4EtOH (1) and a O4N square-pyramid in the dioxidovanadium compound [VO2(HL)]•2H2O (2). 


 

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A NOVEL 2D ZINC(II) COORDINATION POLYMER BASED ON 2,2'-BIPYRIDINE-4,4'-DICARBOXYLIC ACID: SYNTHESIS, CRYSTAL STRUCTURE AND PHOTOLUMINESCENCE PROPERTY

Author(s):

Aliona Vitiu, Lilia Croitor, Anatolii Siminel, Eduard Coropceanu, Paulina Bourosh


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.1
Pages: 30-35
Keywords: zinc, 2,2′-bipyridine-4,4′-dicarboxylic acid, X-ray, luminescence.
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DOI: http://dx.doi.org/10.19261/cjm.2017.479   

Abstract (PDF) 
Graphical Abstract: A new two dimensional 2,2′-bipyridine-4,4′-dicarboxylate Zn(II) coordination polymer was obtained by hydrothermal synthesis and characterized by IR spectrum and single-crystal X-ray diffraction. The crystal lattice hosts the N,N-dimethylformamide and water solvent molecules. The new material reveals blue-orange luminescence upon excitation with ultraviolet light.



 

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CRYSTAL STRUCTURE AND CHARACTERIZATION OF NEUTRAL COBALT(III) 2,3-PYRIDINEDICARBOXYLATE COMPLEX

Author(s):

Natalia Terenti, Marilena Ferbinteanu, Ana Lazarescu


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.1
Pages: 24-29
Keywords: Co(III) complex, 2,3-pyridinedicarboxylic acid, thermal analysis, X-ray diffraction.
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DOI: http://dx.doi.org/10.19261/cjm.2017.371

Abstract (PDF)
Supplementary Material (PDF)
Graphical Abstract: A new Co(III) complex [CoIII(2,3-pdcH)3(H2O)3] (2,3-pdcH – monoanion of 2,3-pyridinedicarboxylic acid) has been synthesized from Co(II) salt at room temperature by using nonhydrothermal method and (NH4)2S2O8 as oxidant. The influence of the type of Co(II) salt used to the synthesis of the final product was investigated. The complex was characterized by elemental analyses, IR and UV-VIS spectroscopy, single crystal X-Ray diffraction and thermogravimetric analyses. The complex crystallizes in the monoclinic space group P21/c. The crystal structure reveals a homoleptic complex with a distorted octahedral geometry, where the ligand acts as monodeprotonated N, O-chelating anion.


 

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LANTHANIDE COORDINATION COMPOUNDS WITH MONODENTATE COORDINATED β-DIKETONE HETEROANALOGUE - (2,2,2-TRICHLORO-N-(DIPIPERIDIN-1-YL-PHOSPHORYL)ACETAMIDE: SYNTHESIS AND SPECTRAL INVESTIGATIONS

Author(s):

Olena Litsis, Vladimir Ovchynnikov, Tatiana Sliva, Svitlana Shishkina, Vladimir Amirkhanov


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2018 Volume 13, no.1
Pages: 15-23
Keywords: lanthanide, carbacylamidophosphate, phosphoryl ligand, six-coordinate lanthanide complex, electronic spectrum.
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DOI:
http://dx.doi.org/10.19261/cjm.2017.466
 
Abstract (PDF)
Graphical Abstract: New mononuclear six-coordinate lanthanide coordination compounds [Ln (HL)3Cl3] (HL = (2,2,2-trichloro-N-(dipiperidin-1-yl-phosphoryl)acetamideCCl3C(O)N(H)P(O)[N(CH2)5]2, carbacylamidophosphate (CAPh) type ligand) have been synthesized from non-aqueous solutions. The complexes have been characterized by elemental analysis, spectroscopic methods (FTIR, 1H- and 31P-NMR, UV-Vis). The structure of [Sm(HL)3Cl3] has been further confirmed by single crystal X-ray diffraction analysis.

 
 

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SYNTHESIS, OPTIMIZATION, CHARACTERIZATION AND ANTIMICROBIAL STUDIES OF Cu(II) AND Co(III) COMPLEXES OF BIS(2,2/-METHYLYLIDENEPHENOL)DIAMINOETHANE

Author(s):

Felix Sunday Nworie, Frank Ikenna Nwabue


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2017 Volume 12, no.2
Pages: 41-49
Keywords: H2BMPDE-complex, modelling, physicochemical study, antimicrobial bio-efficiency.
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DOI: http://dx.doi.org/10.19261/cjm.2017.392   
 
Abstract (PDF)
Graphical Abstract: A new synthetic extractive protocol for the synthesis of Cu(II) and Co(III) complexes of bis(2,2/-methylylidenephenol)diaminoethane (H2BMPDE) in a single simple step was performed. The obtained data indicated the formation of complexes with 1:1 molar ratio of metal:ligand, of distorted square planar and distorted octahedral geometries. In vitro antibacterial screening revealed that the complexes were active against clinically important gram-negative bacteria (Escherichia coli, pseudomonas, and gram-positive bacterium (Staphylococcus aureus). The synthesis of the complexes was optimized to make it more suitable and efficient for industrial scale production.


 
 

Downloads: 62