Chemistry Journal of Moldova

Inorganic and coordination chemistry

SYNTHESIS AND CHARACTERISATION OF A NOVEL PHOSPHONATE LIGAND AND ITS PALLADIUM(II) COORDINATION COMPOUND

Author(s):

Olesea Cuzan


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2017 Volume 12, no.1
Pages: 74-80
Keywords: palladium, coordination compounds, phosphonate ligands, X-ray characterization.
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DOI:
 dx.doi.org/10.19261/cjm.2016.370

Abstract (PDF)
Graphical Abstract:
 The novel N-(methylene-2-pyridine)-N,N-bis(diethoxyphosphorylmethyl)amine ligand (L) was obtained through a double Kabachnik-Fields reaction, starting from 2-aminomethyl pyridine (2-picolylamine). Based on the L ligand, a new palladium(II) coordination compound [Pd(L)2Cl2] has been synthetized and comprehensively characterized by spectroscopic methods (1H NMR, UV-Vis), ESI mass spectrometry and X-ray crystallography.



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SYNTHESIS AND STRUCTURAL CHARACTERISTICS OF BIS(CITRATE)GERMANATES(IV) (Hbipy)2[Ge(HCit)2]•2H2O AND [CuCl(bipy)2]2[Ge(HCit)2]•8H2O

Author(s):

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


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2016 Volume 11, no.2
Pages: 52-57
Keywords: germanium(IV) compound, citric acid, 2,2’-bipyridine, copper(II) complex, structure.
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DOI:
dx.doi.org/10.19261/cjm.2016.11(2).11
 
Abstract (PDF)
Graphical Abstract: The crystalline compounds (Hbipy)2[Ge(HCitr)2]•2H2O (1)  and [CuCl(bipy)2]2[Ge(HCitr)2]•8H2O (2) (where H4Citr is citric acid, bipy is 2,2ʹ-bipyridine) were obtained for the first time and their structures were determined by the single-crystal X-ray diffraction method. The two compounds were characterized by IR spectroscopy, thermogravimetric (TGA) and elemental analyses. In both compounds complex bic(citrato)germanate anion is formed, protonated 2,2'-bipyridine molecule and [Cu(bipy)2Cl]+ complex are cations in 1 and 2, respectively.

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THE FORMATION MECHANISM OF ASSEMBLED COMPLEXES BRIDGED BY1,3–BIS(4–PYRIDYL)PROPANE

Author(s):

Haruka Dote, Hiroki Yasuhara, Satoru Nakashima


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2016 Volume 11, no.1
Pages: 33-38
Keywords: mixed crystal, assembled complex, 1,3-bis(4-pyridyl)propane, crystal formation.
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2016.11(1).04

Graphical Abstract: 
Several types of crystals having different color appeared in the synthesis of assembled complex of mixed crystals with three metals. [H2(bpp)][M(NCS)4] changed to 1D chain polymer (M(NCS)2(bpp)) by releasing HNCS from the cation and anion in a reaction vessel.


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STRUCTURE AND SOME BIOLOGICAL PROPERTIES OF Fe(III) COMPLEXES WITH NITROGEN-CONTAINING LIGANDS

Author(s):

Ion Bulhac, Alexandra Deseatnic-Ciloci, Paulina Bourosh, Janetta Tiurina, Olga Bologa, Cezara Bivol, Steliana Clapco, Ana Verejan, Svetlana Labliuc, Olga Danilescu


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2016 Volume 11, no.1
Pages: 39-49
Keywords: iron complexes, nitrogen-containing ligands, structure, biological properties.
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2016.11(1).05

Graphical Abstract:
 Four coordination compounds of iron(III) with ligands based on hydrazine and sulfadiazine: FeCl3·digsemi·2H2O (I) (digsemi-semicarbazide diacetic acid dihydrazide, [Fe(HL)SO4] (II) (НL - sulfadiazine), [Fe(H2L1)(H2O)2](NO3)3·5H2O (III) (H2L1-2,6-diacetylpyridine bis(nicotinoylhydrazone) and [Fe(H2L2)(H2O)2](NO3)3•1.5H2O (IV) (H2L2 - 2,6-diacetylpyridine bis(isonicotinoylhydrazone) were synthesized. The spectroscopic and structural characterisation as well as their biological, properties are presented.


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NEW SOLVATOMORPH OF TETRAKIS(μ2-ACETATO-O,O')-BIS(ISONICOTINAMIDE-N)-DI-COPPER(II): SYNTHESIS, IR, TGA AND X-RAY STUDY

Author(s):

Diana Chisca, Eduard Coropceanu, Oleg Petuhov, Lilia Croitor


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2015 Volume 10, no.2
Pages: 33-39
Keywords: copper, isonicotinamide, X-ray, paddle-wheel structure.
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2015.10(2).03

Graphical Abstract:
 Dinucleartetracarboxylato-bridged copper(II)solvato-morph [Cu2(OAc)4(ina)2] •2dmso was prepared and studied by IR spectroscopy, TGA analysis and single crystal X-ray method. Cu(II) ions are bridged by four syn,syn-η1:η1:μ carboxylates, showing a paddle-wheel cage-type with a square-pyramidal geometry.


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SYNTHESIS, CRYSTAL STRUCTURE, AND PROPERTIES OF COPPER(II) COMPLEXES WITH 1,4,7-TRIS(2-AMINOETHYL)-1,4,7-TRIAZACYCLONONANE

Author(s):

Masahiro Mikuriya, Mayu Hamagawa, Natsuki Tomioka, Daisuke Yoshioka, Naoko Uehara, Rika Fujimori, Hiroki Yamamoto, Yoshinari Ando, Shoichi Hori, Taro Kuriyama, Ryoji Mitsuhashi, Makoto Handa


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2015 Volume 10, no.2
Pages: 40-47
Keywords: copper(II) complex, magnetic properties, macrocyclic ligand, 1,4,7-triazacyclononane.
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2015.10(2).04

Graphical Abstract:
 Three kinds of copper(II) complexes with 1,4,7-tris(2-aminoethyl)-1,4,7-triazacyclononane (taetacn), [Cu(taetacn)](ClO4)2 (1), [Cu(Htaetacn)](ClO4)3 (2), and [Cu(Htaetacn)](BF4)3 (3) were synthesized and characterized by elemental analyses, IR and UV-Vis spectroscopies. The spectral features are in harmony with an octahedral geometry for 1 and a square-pyramidal coordination for 2 and 3.


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MIXED-METAL PENTANUCLEAR COMPLEXES OF RUTHENIUM(II,III) CARBOXYLATE AND TETRACYANIDOPLATINATE(II)

Author(s):

Masahiro Mikuriya, Kenta Ono, Shun Kawauchi, Daisuke Yoshioka, Ryoji Mitsuhashi, Makoto Handa


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2015 Volume 10, no.2
Pages: 48-53
Keywords: dinuclear ruthenium(II,III) carboxylate, magnetic property, mixed-metal complex, tetracyanidoplatinate(II).
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2015.10(2).05

Graphical Abstract:
 Mixed-metal complexes constructed from dinuclearruthenium(II,III) carboxylates and tetracyanidoplatinate(II), [{Ru2(O2CCH3)4}2Pt(CN)4]•2H2O (1) and [{Ru2{O2CC(CH3)3}4}2Pt(CN)4]•2H2O (2), were synthesized and characterized by elemental analysis and IR and UV-vis spectroscopies.


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COORDINATION COMPOUNDS OF OXOVANADIUM(IV) BASED ON S-METHYLISOTHIOSEMICARBAZIDE AS DYES FOR THERMOPLASTIC POLYMERS

Author(s):

Maria Cocu, Stefan Manole


Field: Inorganic and coordination chemistry
Type: Short communication
Issue: 2015 Volume 10, no.2
Pages: 95-98
Keywords: coordination compounds, oxovanadium(IV), dyes, thermoplastic polymer.
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2015.10(2).13

Graphical Abstract:
 We have investigated the properties as dyes of coordination compounds synthesized by us previously (8-(1',2'-naphthyl)-1-R-3-methyl-6-thiomethyl-4,5,7-triazanona-1,3,5,7-tetraenato-1,1'-diolato(-)-O1, O1', N4, N7-vanadil, where R=CH3 (1) , C6H5 (2)), which can be used for colouring thermoplastic masses. The compounds have a high photostability (7 points), thermostability (>250°) and an intensity of colour that give a low consumption (0.006-0.010g).

Downloads: 23

SONOCHEMICAL SYNTHESIS OF HEMATITE NANOPARTICLES

Author(s):

Mihail Iacob


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2015 Volume 10, no.1
Pages: 46-51
Keywords: hematite, nanoparticles, iron oxides, sonochemistry.
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2015.10(1).06

Graphical Abstract:
 Hematite nanoparticles were prepared by a procedure consisting in sonication of μ3-oxo trinuclear iron(III) acetate of composition [Fe3O(OOCCH3)6(H2O)3]NO3∙4H2O, {Fe3O}NO3, as iron source, in strong basic conditions followed by thermal treatment at 600˚C. The formation of the hematite was confirmed by IR spectroscopy, X-ray powder diffraction and Raman spectroscopy while the shape and size of the nanoparticles and their agglomeration were evidenced and estimated on the basis of the images taken with TEM technique.

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CRYSTAL STRUCTURE OF {[La2(CNCH2COO)6(H2O)4]H2O}n COMPLEX

Author(s):

Ana Lazarescu, Elena Melnic, Sergiu Shova, Victor Kravtsov, Constantin Turta


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2015 Volume 10, no.1
Pages: 52-56
Keywords: coordination polymers, lanthanum (III), cyanoacetic acid, crystal structure.
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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2015.10(1).07

Graphical Abstract:
 A lanthanum(III) cyanoacetate complex  {[La2(CNCH2COO)6 (H2O)4]∙H2O}n (1) was synthesized and characterized by X-ray single-crystal analysis. The complex 1 exhibits one-dimensional coordination polymer structure. Cyanoacetate ligands coordinated in the bidentate bridging and tridentate-chelating bridging modes. The cyano-group of ligand is not coordinated to the lanthanide ion.

Downloads: 55