Inorganic and coordination chemistry

THE ROLE OF HALOGEN BONDING IN THE SYNTHESIS AND DESIGN OF TAP COMPLEXES

Author(s):

Namiq Shikhaliyev, Ayten Niyazova, Abel Maharramov, Agaisa Askerov, Nazrin Zeynalli, Viktor Khrustalev, Peri Huseynova

Field: Inorganic and coordination chemistry
Type: Review
Issue: 2026 Volume 21, no.1
Pages: 12-33

Keywords: halogen bonding; TAP complex; 1,3,5-triazapentadiene; noncovalent interaction; σ-hole.
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https://doi.org/10.19261/cjm.2026.1499

Abstract (PDF)

Graphycal Abstract: This review highlights the crucial role of halogen bonding in governing the synthesis, crystal engineering, and supramolecular self-assembly of 1,3,5-triazapentadiene (TAP) metal complexes. It covers synthetic strategies, the σ-hole model, cooperative non-covalent interactions, and diverse functional applications including catalysis and material design.

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STRUCTURAL DIVERSITY OF syn-2-PYRIDINEALDOXIME IN Cu(II) COORDINATION POLYMER WITH BIPYRIDINE AS AUXILIARY LIGANDS

Author(s):

Aliona Vitiu, Eduard Coropceanu, Paulina Bourosh

Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2026 Volume 21, no.1
Pages: 86-93

Keywords: synthesis, coordination compound, copper(II), syn-2-pyridinealdoxime, X-ray study, Hirshfeld surface.
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https://doi.org/10.19261/cjm.2026.1469

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Graphycal Abstract: Copper(II), syn-2-pyridinealdoxime (PaoH), and 4,4′-bipyridine (bpy) react to form a one-dimensional (1D) cationic coordination polymer. The structure consists of tetranuclear units interconnected by in situ generated PaoH ligands and further extended by bpy linkers. Nitrate anions, DMF, and water molecules are involved in hydrogen-bonding interactions with the metal complex. These intermolecular interactions were analyzed and quantified using Hirshfeld surface analysis.

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INDOLE-BASED SUPPORTED CATALYSTS FOR THE SELECTIVE PHENOL OXIDATION

Author(s):

Savita Kumari, Praveen Kumar Gupta, Ram Karan, Amit Kumar, Ramesh Kumar

Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2026 Volume 21, no.1
Pages: 72-85

Keywords: polymeric support, functionalized resin, catalysis, reusability, oxidation.
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https://doi.org/10.19261/cjm.2026.1380

Abstract (PDF)

Supplementary Material (PDF)

Graphycal Abstract: Indole based supported metal catalysts were synthesized and applied for selective phenol oxidation using TBHP and H₂O₂. PS-HIMAP-Cu achieved 97.2% conversion with 91.5% catechol selectivity, while PS-HIMAP-Ni offered 96.8% selectivity with H₂O₂. The catalysts demonstrated stability and reusability, providing an efficient platform for phenol valorisation and wastewater treatment.

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COMPARATIVE STUDY OF MgO NANOPARTICLES SYNTHESIZED IN THE PRESENCE OF SODIUM DODECYL SULPHATE AND ALOE VERA

Author(s):

Mariana Diru, Ion Lungu, Tamara Potlog

Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2025 Volume 20, no.2
Pages: 33-44

Keywords: MgO nanoparticles, sodium dodecyl sulphate, aloe vera, the coprecipitation method.
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https://doi.org/10.19261/cjm.2025.1344

Abstract (PDF)

Graphycal Abstract: Two methods for synthesizing MgO nanoparticles using sodium lauryl sulphate and Aloe Vera extract as dispersing agents are described. Varying dispersing agent quantities and calcination temperatures were applied. The morphology and size were characterized using SEM-EDX and XRD, confirming successful synthesis and structure of the MgO nanoparticles.

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SOLVOTHERMAL SYNTHESIS, CRYSTAL STRUCTURE AND PHOTOLUMINISCENCE OF Cd(II) COORDINATION POLYMER DERIVED FROM A 1,2,3-TRIAZOLE-BASED TRICARBOXYLATE LIGAND

Author(s):

Viorina Gorinchoy, Sergiu Shova, Olga Kulikova, Gheorghe Roman, Vasile Lozan

Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2025 Volume 20, no.2
Pages: 25-32

Keywords: coordination polymer, 1,2,3-triazole, thermogravimetry, photoluminescence.
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https://doi.org/10.19261/cjm.2025.1389

Abstract (PDF)

Graphycal Abstract: A new cadmium(II) polymeric complex was synthesized under solvothermal conditions by the reaction of 5-(4-carboxy-5-methyl-1H-1,2,3-triazol-1-yl)isophthalic acid (H₃L) with cadmium nitrate tetrahydrate in a mixture of N,N-dimethylacetamide and water. The polymeric complex is an infinite 2D coordination polymer with the general formula {[Cd₃L₂(H₂O)6]·2H₂O}_n. The two-dimensional coordination polymer {[Cd₃L₂(H₂O)₆]}n presents p–p stacking interactions between benzene rings of adjacent 2D coordination polymers, which contribute along with numerous O-H---O H-bonds to the assembly of a 3D supramolecular assembly. The intense photoluminescence emission of cadmium(II) complex is observed in the blue-violet region of the spectrum.

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DESIGN, SYNTHESIS, AND STRUCTURAL STUDY OF MONO- AND POLYNUCLEAR Cu(II) IMINODIACETATE COMPLEXES

Author(s):

Dumitru Ureche, Pavlina Bourosh, Ion Bulhac

Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2025 Volume 20, no.2
Pages: 15-24

Keywords: coordination compound, Cu(II), iminodiacetic acid, dioxime, X-ray study.
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https://doi.org/10.19261/cjm.2025.1354

Abstract (PDF)
Supplementary Material (PDF)

Graphycal Abstract: The synthesis of three structurally distinct copper(II) coordination compounds with iminodiacetic acid (H₂IDA) as ligand was achieved by varying the reaction pH. Under neutral conditions (pH 6–6.5), compound 1 formed as a two-dimensional ionic coordination polymer, {[NH₂(CH₃)₂]₂[Cu₃(IDA)₄]·1.75H₂O}ₙ, consisting of layered [Cu₃(IDA)₄]²ₙ⁻ anions stabilized by hydrogen-bonding networks. Under basic conditions (pH 8–8.5), compound 2 was obtained as a neutral 2D molecular polymer, {[Cu₃(IDA)₂(IDAH)₂]·5H₂O}ₙ, built from trinuclear copper units bridged by bi- and monodeprotonated ligands. Under acidic conditions (pH 3), compound 3, ((CH₃)₂OH)₂[Cu(IDA)₂]·[Cu(IDAH)₂], was isolated as an ionic structure containing neutral and anionic mononuclear complexes charge-balanced by protonated dimethylether cations.

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SYNTHESIS AND STRUCTURE OF HETEROMETALLIC MULTILIGAND Ge(IV) - 3d-METALS COMPLEXES WITH 1-HYDROXYETHANE-1,1-DIPHOSPHONIC ACID AND 1,10-PHENANTHROLINE

Author(s):

Kyrylo Tsymbaliuk, Оlena Martsynko, Viktoriya Dyakonenko, Оlena Finik, Inna Seifullina, Svitlana Shishkina

Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2024 Volume 19, no.2
Pages: 28-35

Keywords: 1-hydroxyethane-1,1-diphosphonic acid, 1,10-phenanthroline, germanium, 3d-metal, crystal structure.
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https://doi.org/10.19261/cjm.2024.1247

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Supplementary Material (PDF)

Graphycal Abstract: The present study describes synthesis, research and definition of the structure of five new coordination compounds of Germanium(IV) and 3d-metals with 1-hydroxyethane-1,1-diphosphonic acid and 1,10-phenanthroline, which in crystals are organic-inorganic hybrid ensembles with three-dimensional networks formed by numerous intermolecular hydrogen bonds between complex cations, anions, and crystalline water molecules.

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MONO- AND BINUCLEAR COORDINATION COMPOUNDS OF Ni(II) AND Mn(II) WITH DIOXIMIC AND DICARBOXYLIC LIGANDS

Author(s):

Dumitru Ureche, Ion Bulhac, Pavlina Bourosh

Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2024 Volume 19, no.2
Pages: 36-44

Keywords: coordination compound, Ni(II), Mn(II), dioxime, X-ray study, hydrogen bond.
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https://doi.org/10.19261/cjm.2024.1212

Abstract (PDF)
Graphycal Abstract: Two new compounds – a mononuclear nickel(II) compound with di-paratolylglyoxime (DpatH₂) - [Ni(DpatH₂)₃]SO₄∙1,4-H₂bdc∙2.5DMF∙H₂O (1) and a binuclear manganese(II) compound with dianilineglyoxime (DAnH₂) - [Mn₂(DAnH₂)₂(1,3-bdc)₂(DMSO)₄] (2) (1,4- and 1,3-bdc are 1,4- and 1,3-benzenedicarboxylic acids, respectively) have been obtained. The IR spectra of the complexes were studied and molecular and crystal structures of the compounds were determined by single crystal X-ray diffraction method. Compound 1 is ionic and contains a complex cation in which three neutral DpatH₂ ligands are coordinated to the nickel atom. Complex 2 is a molecular binuclear complex in which, in addition to the two neutral ligands DAnH₂ and four DMSO, two 1,3-benzenedicarboxylic anions are coordinated to the metal atoms in a bridging manner.

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SYNTHESYS AND STRUCTURAL STUDIES OF HETEROMETALLIC {[FeCa2(Sal)2(SalH)3(DMA)2(CH3OH)2]}n SALICYLATE COMPLEX

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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SELECTIVITY, SYNTHESIS, CRYSTAL STRUCTURE AND BIOLOGICAL ACTIVITY OF THE ANION-COORDINATION PHENANTHROLINIUM TARTRATOGERMANATE

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

Abstract (PDF)
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.

Downloads: 131