{"title":"Synthesis, Spectroscopic Characterization, Computational Studies and In Vitro Anticancer Investigations of a Novel Platinum(II)–Hypoxanthine Complex: Targeting ERα and Inducing Apoptosis in MCF-7 Cells","authors":"Ç. Bilkan","doi":"10.1134/S1070328425601311","DOIUrl":"10.1134/S1070328425601311","url":null,"abstract":"<p>In this study, a novel platinum(II) coordination complex, Pt(HX)<sub>2</sub>Cl<sub>2</sub>, incorporating hypoxanthine ligands, was synthesized and fully characterized using Fourier-transform infrared (FTIR), <sup>1</sup>H/<sup>13</sup>C nuclear magnetic resonance (NMR) spectroscopy, and density functional theory (DFT) calculations. Spectroscopic data confirmed that coordination occurs via the N7 nitrogen atoms of the ligand in a distorted square-planar geometry. The anticancer potential of the complex was evaluated against ERα-positive MCF‑7 breast cancer cells and compared with cisplatin and tamoxifen. The complex exhibited a dose-dependent antiproliferative activity with an IC<sub>50</sub> value of 56.67 µg/mL. Although less aggressive than cisplatin (IC<sub>50</sub> = 20.0 µg/mL) at lower doses, Pt(HX)<sub>2</sub>Cl<sub>2</sub> achieved comparable efficacy at therapeutic concentrations (reducing viability to 28% at 75 µg/mL). Crucially, flow cytometric analysis revealed that the compound induces cell death primarily via apoptosis (34.9%) rather than necrosis, matching the apoptotic efficacy of cisplatin (36.9%) and tamoxifen (39.2%). Molecular docking simulations indicated that the complex acts as a high-affinity dual-targeting agent, exhibiting a superior binding score (–107.06) against the estrogen receptor alpha (ERα) compared to the reference drugs. Furthermore, in silico ADMET and toxicity assessments predicted a significantly improved safety profile, characterized by lower systemic toxicity (Class 4), reduced risks of hepatotoxicity and neurotoxicity, and minimal blood-brain barrier penetration. Collectively, these findings highlight Pt(HX)<sub>2</sub>Cl<sub>2</sub> as a promising, safer alternative to classical platinum-based chemotherapeutics with a distinct apoptosis-inducing mechanism.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"52 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148012002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. B. Kiyaev, S. L. Safronyuk, I. M. Samokhvalov, K. S. Zakharov, A. N. Gusev, A. M. Katsev, M. A. Kiskin
{"title":"Antibacterial and Cytotoxic Properties of Zinc and Copper(II) Coordination Compounds with Bis((pyridin-2-yl)-1,2,4-triazolyl)alkanes","authors":"A. B. Kiyaev, S. L. Safronyuk, I. M. Samokhvalov, K. S. Zakharov, A. N. Gusev, A. M. Katsev, M. A. Kiskin","doi":"10.1134/S1070328425601517","DOIUrl":"10.1134/S1070328425601517","url":null,"abstract":"<p>Copper(II) and zinc complexes with 1,3-bis((pyridin-2-yl)-1,2,4-triazolyl)propane (L<sup>1</sup>) and 1,4-bis((pyridin-2-yl)-1,2,4-triazolyl)butane (L<sup>2</sup>) were synthesized and investigated. The composition and structure of the complexes were studied by elemental and thermogravimetric analysis, ESI mass spectrometry, IR spectroscopy, and X-ray diffraction. The complexes were found to have the composition [MLX]X·<i>n</i>H<sub>2</sub>O (X = Cl, Br; <i>n</i> = 3–5) and mononuclear cationic structure. The complex [Cu(L<sup>2</sup>)Cl]Cl·2.5H<sub>2</sub>O exhibited a high antibacterial activity against luminescent test bacteria (<i>Photobacterium leiognathi</i> Sh1 and <i>Aliivibrio fischeri</i> F1) and also proved to be highly toxic against rapidly growing human cells. The ligand L<sup>2</sup> was identified as a promising chemical structure for the development of antibacterial agents, both organic compounds and metal complexes.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"52 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148012003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Yu. Baranov, I. Yu. Bagryanskaya, A. V. Artem’ev
{"title":"Copper(I) Thiocyanate Complexes with tert-Butylpyridylphosphine Ligands: Synthesis and Photophysical Properties","authors":"A. Yu. Baranov, I. Yu. Bagryanskaya, A. V. Artem’ev","doi":"10.1134/S1070328425601426","DOIUrl":"10.1134/S1070328425601426","url":null,"abstract":"<p>The reactions of bis(2-pyridyl)-<i>tert-</i>butylphosphine (L<sup>1</sup>) and bis(<i>tert-</i>butyl)(2-pyridyl)phosphine (L<sup>2</sup>) with copper(II) thiocyanate afford the corresponding binuclear complexes [Cu<sub>2</sub>(SCN)<sub>2</sub>(L<sup>1</sup>)<sub>2</sub>] (<b>I</b>) and [Cu<sub>2</sub>(SCN)<sub>2</sub>(L<sup>2</sup>)<sub>2</sub>] (<b>II</b>). In complex <b>I</b>, two L<sup>1</sup> molecules are coordinated to the copper atoms via the P,N,N′-bridging mode according to the “head-to-tail” type, and the SCN ligands are coordinated via the N-monodentate mode. In complex <b>II</b>, molecules of ligand L<sup>2</sup> are coordinated via the P-monodentate mode, and the SCN ligands bind two copper atoms between each other via the “head-to-tail” type thus acting as S,N-bridges. Complex <b>I</b> exhibits pronounced photoluminescence thermochromism.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 12","pages":"1060 - 1066"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. G. Lavrenova, V. G. Makotchenko, E. V. Korotaev, E. Yu. Gerasimov, A. I. Bulavchenko, O. G. Shakirova
{"title":"Spin Crossover–Few-Layer Graphene Nanocomposites: Synthesis and Magnetic Properties of Fe(NH2trz)3A2@FLG (A = Cl–, Br–)","authors":"L. G. Lavrenova, V. G. Makotchenko, E. V. Korotaev, E. Yu. Gerasimov, A. I. Bulavchenko, O. G. Shakirova","doi":"10.1134/S1070328425601244","DOIUrl":"10.1134/S1070328425601244","url":null,"abstract":"<p>Stable nanoparticles capable of experiencing spin crossover with hysteresis on curves of the µ<sub>eff</sub>(<i>T</i>) dependence near ambient temperature have been synthesized. The earlier synthesized complexes [Fe(NH<sub>2</sub>trz)<sub>3</sub>]Cl<sub>2</sub>·H<sub>2</sub>O and [Fe(NH<sub>2</sub>trz)<sub>3</sub>]Br<sub>2</sub>·H<sub>2</sub>O exhibiting sharp spin crossover with hysteresis are used for the preparation of the nanocomposites. Few-layer graphene (FLG) formed by the microwave heating of the intercalated polydicarbonfluoride compound with acetone served as the basis. Nanoparticles Fe(NH<sub>2</sub>trz)<sub>3</sub>Cl<sub>2</sub>@FLG (SCO1-<i>n</i>) and Fe(NH<sub>2</sub>trz)<sub>3</sub>Br<sub>2</sub>@FLG (SCO2-<i>n</i>) (<i>n</i> = 1–3) have been prepared (<i>n</i> indicates time (h) of the treatment of the initial particles with ultrasound). The effective hydrodynamic diameter of particles of the complexes in ethanol is determined by photon correlation spectroscopy. The structures and microstructures of the samples are studied by high resolution transmission electron microscopy. The study of the µ<sub>eff</sub>(<i>T</i>) dependence shows that all synthesized composites exhibit crossover with hysteresis on the µ<sub>eff</sub>(<i>T</i>) curves. The temperature and character of the transition depend substantially on the particle size. The variation of the ultrasonication time during the preparation of the composites makes it possible to purposefully modify their magnetic properties.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 12","pages":"1172 - 1186"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. A. Bovkunova, A. A. Anisimov, V. E. Gontcharenko, E. S. Bazhina, I. V. Taydakov, I. L. Eremenko, I. V. Ananyev
{"title":"New Photochromic Zinc(II) Complexes with 1,2,4-Triazole-Containing Schiff Bases","authors":"A. A. Bovkunova, A. A. Anisimov, V. E. Gontcharenko, E. S. Bazhina, I. V. Taydakov, I. L. Eremenko, I. V. Ananyev","doi":"10.1134/S1070328425601529","DOIUrl":"10.1134/S1070328425601529","url":null,"abstract":"<p>The reactions of zinc(II) bromide with Schiff bases, 4-(2-hydroxyphenyl)methyleneamino-1,2,4-triazole (HL<sup>1</sup>) and 4-(2-hydroxy-3-methoxyphenyl)methyleneamino-1,2,4-triazole (HL<sup>2</sup>), yielded the complexes [Zn(HL<sup>1</sup>)<sub>2</sub>Br<sub>2</sub>] (<b>I</b>) and [Zn(HL<sup>2</sup>)<sub>2</sub>Br<sub>2</sub>] (<b>II</b>). It was shown that <b>I</b> and <b>II</b> are also formed upon the addition of hydrobromic acid to a suspension of zinc(II) coordination compounds containing anionic [L<sup>1</sup>]<sup>–</sup> and [L<sup>2</sup>]<sup>–</sup> ligands in MeOH. The crystal structures of compounds <b>I</b> and <b>II</b> were determined by single-crystal X-ray diffraction (CIF files CCDC no. 2502710 (<b>I</b>), no. 2502711 (<b>II</b>)). It was found that upon complexation with Zn<sup>2+</sup> ions, conformational changes occur in the HL<sup>1</sup> and HL<sup>2</sup> molecules. This facilitates intramolecular proton transfer, causing compounds <b>I</b> and <b>II</b> to exhibit a photochromic effect, which is confirmed by diffuse reflectance spectroscopy data.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 12","pages":"1082 - 1094"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coordination Chemistry: Part 1. Electronic Structure, Stability, Reaction Mechanisms, Nonaqueous Solvents","authors":"M. N. Sokolov, A. L. Gushchin, D. G. Samsonenko","doi":"10.1134/S1070328425601438","DOIUrl":"10.1134/S1070328425601438","url":null,"abstract":"<p>This work contains theoretical material and questions for independent study on selected topics in coordination chemistry and represents an English translation of a textbook on this subject. The material is divided into four parts. The first part addresses the electronic structure of coordination compounds based on ligand field theory and molecular orbital theory, with numerous examples drawn from the contemporary literature. This part serves as a theoretical introduction to the description of coordination compounds. The second part examines factors affecting the stability of coordination compounds, considering both metal-centered and ligand-centered contributions, as well as the principal approaches to ligand design. The third part is devoted to reaction mechanisms of coordination compounds in ligand substitution reactions and in redox processes. The fourth part discusses aspects of the synthesis and reactivity of coordination compounds in nonaqueous solvents.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 11","pages":"947 - 1050"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. V. Zvereva, M. A. Shmelev, E. S. Bazhina, Yu. K. Voronina, I. L. Eremenko
{"title":"Synthesis, Study of the Structure, and Molecular Docking of Cu(II) Coordination Compounds with 3-Benzylidene-1-pyrrolines","authors":"O. V. Zvereva, M. A. Shmelev, E. S. Bazhina, Yu. K. Voronina, I. L. Eremenko","doi":"10.1134/S1070328425601268","DOIUrl":"10.1134/S1070328425601268","url":null,"abstract":"<p>A series of copper nitrate complexes with 3-benzylidene-1-pyrroline (L<sub>H</sub>) and its derivatives [3-(4-chlorobenzylidene)-1-pyrroline (L<sub>Cl</sub>), 3-(4-bromobenzylidene)-1-pyrroline (L<sub>Br</sub>), and 3-(4-methoxybenzylidene)-1-pyrroline (L<sub>OMe</sub>)] was synthesized: [Cu(H<sub>2</sub>O)<sub>2</sub>(L<sub>H</sub>)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>] (<b>I</b><sub>H</sub>), [Cu(L<sub>Cl</sub>)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>] (<b>II</b><sub>Cl</sub>), [Cu(L<sub>Br</sub>)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>] (<b>II</b><sub>Br</sub>), and [Cu(L<sub>OMe</sub>)<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>] (<b>II</b><sub>OMe</sub>). The obtained coordination compounds were characterized by X-ray diffraction, IR spectroscopy, and CHN analysis. UV/Vis spectra of the complexes in solutions were studied. The structure and crystal packing of the complexes were analyzed in detail, and the main structuring non-covalent interactions in the crystals were identified. The interaction of synthesized coordination compounds with the HER2 (human epidermal growth factor receptor) was investigated using molecular docking.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 12","pages":"1125 - 1139"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. A. Koshenskova, L. S. Razvorotneva, A. D. Filippova, F. M. Dolgushin, N. V. Gogoleva, O. B. Bekker, V. O. Shender, I. L. Eremenko, I. A. Lutsenko
{"title":"First Copper(II) Indole Carboxylate Complexes: Features of Synthesis, Structural Organization, and Biological Activity","authors":"K. A. Koshenskova, L. S. Razvorotneva, A. D. Filippova, F. M. Dolgushin, N. V. Gogoleva, O. B. Bekker, V. O. Shender, I. L. Eremenko, I. A. Lutsenko","doi":"10.1134/S1070328425601463","DOIUrl":"10.1134/S1070328425601463","url":null,"abstract":"<p>Complexes [Cu<sub>2</sub>(ind)<sub>4</sub>(EtOH)<sub>2</sub>] (<b>I</b>), [Cu(ind)<sub>2</sub>bpy]·1.15MeCN·0.85MeOH (<b>II</b>), and [Cu(ind)(phen)<sub>2</sub>]<sup>+</sup> ·ind<sup>–</sup>·0.5Hind·1.5H<sub>2</sub>O (<b>III</b>) were synthesized using slow diffusion of the starting solutions of copper(II) acetate, indole-2-carboxylic acid (Hind), and oligopyridines (2,2'-bipyridine (bpy)/1,10-phenanthroline (phen)). The structures of the complexes were established by single crystal X-ray diffraction and the phase purity was confirmed by powder X-ray diffraction. According to single-crystal X-ray diffraction data, <b>I</b> and <b>II</b> are molecular complexes, while <b>III</b> is an ionic complex comprising the cationic mononuclear [Cu(ind)(phen)<sub>2</sub>]<sup>+</sup> moiety in the independent part of the unit cell and the ind<sup>–</sup> anion in the outer sphere. The coordination environment of copper(II) cation (C.N.<sub>Cu</sub> 5) is described by a square pyramid (<b>I</b>, <b>III</b>) or a planar square with C.N.<sub>Cu</sub> 4 (<b>II</b>). The supramolecular level involves both hydrogen bonds and non-covalent interactions, mainly of the π…π and C–H…π type. The stability of salt solutions of <b>I</b>–<b>III</b> was studied by spectrophotometry in comparison with the free ligands and over a period of 2 days. Complexes <b>I</b>–<b>III</b> were investigated for biological activity: the antimycobacterial activity was evaluated against the non-pathogenic <i>Mycolicibacterium smegmatis</i> strain and the cytotoxicity of <b>III</b> was assessed against the test human ovarian adenocarcinoma cells (SKOV3).</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 12","pages":"1159 - 1171"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. O. Druzhkov, T. N. Kocherova, I. N. Meshcheryakova, A. V. Cherkasov, I. A. Yakushev, S. V. Baryshnikova, P. V. Dorovatovskii, A. V. Piskunov
{"title":"Template Synthesis of Functionalized o-Iminosemiquinones and o-Iminoquinones in the Coordination Sphere of Nickel(II) and Zinc(II) Ions","authors":"N. O. Druzhkov, T. N. Kocherova, I. N. Meshcheryakova, A. V. Cherkasov, I. A. Yakushev, S. V. Baryshnikova, P. V. Dorovatovskii, A. V. Piskunov","doi":"10.1134/S1070328425601475","DOIUrl":"10.1134/S1070328425601475","url":null,"abstract":"<p>New nickel(II) bis-<i>o</i>-iminobenzosemiquinolate complexes (L<sup>1</sup>)<sub>2</sub>Ni (<b>I</b>) and (L<sup>2</sup>)<sub>2</sub>Ni (<b>II</b>) were prepared by template synthesis using <i>o</i>- and <i>m</i>-phenylenediamine compounds with NiCl<sub>2</sub> ((<i>o</i>-PDA)<sub>2</sub>NiCl<sub>2</sub> and (<i>m</i>-PDA)<sub>2</sub>NiCl<sub>2</sub>) as precursors in the reaction with thallium(I) 3,5-di-<i>tert</i>-butyl-<i>o</i>-benzosemiquinolate. The <i>o</i>-phenylenediamine complex with ZnI<sub>2</sub> ((<i>o</i>-PDA)ZnI<sub>2</sub>) was allowed to react with 4-(<i>tert</i>-butyl)-5-methoxy-<i>o</i>-benzoquinone to give L<sup>3</sup>ZnI<sub>2</sub> (<b>III</b>) containing a neutrally coordinated molecule of new <i>o</i>-iminobenzoquinone. It was shown that the condensation of <i>o</i>(<i>m</i>)-phenylenediamine with <i>o</i>-benzosemiquinone/<i>o</i>-benzoquinone takes place in the coordination sphere of nickel(II) and zinc(II) ions, giving rise to new <i>o</i>-iminobenzosemiquinolate/<i>o</i>-iminobenzoquinone ligands functionalized with an amino group. The structure of complexes <b>I</b> and <b>III</b> was confirmed by X-ray diffraction.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 12","pages":"1051 - 1059"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. V. Markin, R. V. Rumyantsev, G. Yu. Zhigulin, A. A. Belikov, G. K. Fukin, S. Yu. Ketkov
{"title":"Coordination Complexes of Arylimine Derivatives of Aceanthrylene-1,2-dione","authors":"G. V. Markin, R. V. Rumyantsev, G. Yu. Zhigulin, A. A. Belikov, G. K. Fukin, S. Yu. Ketkov","doi":"10.1134/S107032842560130X","DOIUrl":"10.1134/S107032842560130X","url":null,"abstract":"<p>Coordination complexes of bismuth bromide, iron(II) bromide, and zinc chloride with the aceanthrylene-<i>o-</i>iminoquinone (ANQ) ligand, 2-((2,6-diisopropylphenyl)imino)aceanthrylen-1(2<i>H</i>)-one, are synthesized. The compounds have the characteristic dimeric structure due to two bridging halogen atoms connected to the metals into the four-membered cycle. The DFT-calculated energy of the bridging bonds increases in the series Bi, Fe, and Zn. The metal–ANQ interaction energy is the highest in the case of Fe and lowest for Bi. The coordination complexes of the diimine derivative (<i>N</i>,<i>N</i>'-(aceanthrylene-1,2-diylidene)bis(2,6-diisopropylaniline)) and its 7- and 8-bromosubstituted derivatives with ZnCl<sub>2</sub> are synthesized. The lowest acceptor effect of the coordination of ZnCl<sub>2</sub> to the carbon and hydrogen atoms in positions 7 and 8 of the anthracene fragment is found.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 12","pages":"1103 - 1117"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147588488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}