Nguyen Thi Thanh Chi , Nguyen Tran Huong Ly , Doan Duc Hieu , Luc Van Meervelt
{"title":"Synthesis, structure, catalytic and cytotoxic activities of chlorido(5-nitroquinolin-8-olato-κ2N,O)(tricyclohexylphosphine-κP)platinum(II)","authors":"Nguyen Thi Thanh Chi , Nguyen Tran Huong Ly , Doan Duc Hieu , Luc Van Meervelt","doi":"10.1107/S2056989025005766","DOIUrl":"10.1107/S2056989025005766","url":null,"abstract":"<div><div>In the title square-planar complex, the P atom of the tricyclohexylphosphine group coordinates to the metal atom in the <em>trans</em> position compared to the coordinating N atom. The complex shows significant catalytic ability and selectivity for hydrosilylation between phenylacetylene and triethylsilane.</div></div><div><div>The title complex, [Pt(C<sub>10</sub>H<sub>5</sub>N<sub>2</sub>O<sub>3</sub>)Cl(C<sub>18</sub>H<sub>33</sub>P)], was synthesized by the reaction of [PtCl(C<sub>10</sub>H<sub>5</sub>N<sub>2</sub>O<sub>3</sub>)(η<sup>2</sup>-C<sub>2</sub>H<sub>4</sub>)] and PCy<sub>3</sub> at room temperature for 2 h with a yield of 80%. The deprotonated 5-nitroquinoline-8-ol (C<sub>10</sub>H<sub>5</sub>N<sub>2</sub>O<sub>3</sub><sup>−</sup>) anion coordinates to the metal atom in a bidentate mode <em>via</em> its N and O atoms with a N—Pt—O bite angle of 80.0 (3)°. The tricyclohexylphosphine P atom is in a <em>trans</em> position with respect to the N atom in the square-planar coordination environment of the metal atom. The packing features zigzag chains linked by C—H⋯O interactions and continuous channels occupied by disordered solvent molecules, both running in the <em>a</em>-axis direction. The complex shows weak activity against four cancer cell lines with IC<sub>50</sub> values > 120 µ<em>M</em>, but significant catalytic ability and selectivity for hydrosilylation between phenylacetylene and triethylsilane.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 657-661"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Waylan Callaway , Matthew Elterman , Nikita Krasilnikov , Gavin Roberts , Davis Rutan , Ty Spencer , Clifford W. Padgett , Will E. Lynch
{"title":"Syntheses and crystal structures of three triphenylsulfonium salts of manganese(II), iron(III) and cobalt(II)","authors":"Waylan Callaway , Matthew Elterman , Nikita Krasilnikov , Gavin Roberts , Davis Rutan , Ty Spencer , Clifford W. Padgett , Will E. Lynch","doi":"10.1107/S2056989025006668","DOIUrl":"10.1107/S2056989025006668","url":null,"abstract":"<div><div>The crystal structures of three salts of the triphenylsulfonium cation, C<sub>18</sub>H<sub>15</sub>S<sup>+</sup>, namely bis(triphenylsulfonium) tetrachloridomanganate(II), triphenylsulfonium tetrachloridoferrate(III) and bis(triphenylsulfonium) tetrachloridocobaltate(II) are reported.</div></div><div><div>Bis(triphenylsulfonium) tetrachloridomanganate(II), (C<sub>18</sub>H<sub>15</sub>S)<sub>2</sub>[MnCl<sub>4</sub>] (<strong>I</strong>), triphenylsulfonium tetrachloridoferrate(III), (C<sub>18</sub>H<sub>15</sub>S)[FeCl<sub>4</sub>] (<strong>II</strong>), and bis(triphenylsulfonium) tetrachloridocobaltate(II), (C<sub>18</sub>H<sub>15</sub>S)<sub>2</sub>[CoCl<sub>4</sub>] (<strong>III</strong>), crystallize in the monoclinic space groups <em>P</em>2<sub>1</sub>/<em>n</em> [(<strong>I</strong>) and (<strong>III</strong>)] and <em>P</em>2<sub>1</sub>/<em>c</em> [(<strong>II</strong>)]. Compounds (<strong>I</strong>) and (<strong>III</strong>) each contain two crystallographically independent triphenylsulfonium (TPS<sup>+</sup>) cations in the asymmetric unit, whereas (<strong>II</strong>) has one. In all three compounds, the sulfonium centers adopt distorted trigonal–pyramidal geometries, with S—C bond lengths falling roughly in the 1.78–1.79 Å range and C—S—C angles observed at about 101 to 106°. The [<em>M</em>Cl<sub>4</sub>]<sup><em>n</em>−</sup> anions (<em>M</em> = Mn<sup>2+</sup>, Fe<sup>3+</sup>, Co<sup>2+</sup>; <em>n</em> = 2,1,2) adopt slightly distorted tetrahedral geometries, with <em>M</em>—Cl bond lengths in the 2.19–2.38 Å range and Cl—<em>M</em>—Cl angles of approximately 104–113°. Hirshfeld surface analyses shows that H⋯H and H⋯C contacts dominate the TPS<sup>+</sup> cation environments, whereas H⋯Cl and short <em>M</em>—S interactions link each [<em>M</em>Cl<sub>4</sub>]<sup><em>n</em>−</sup> anion to the surrounding cations. In (<strong>I</strong>) and (<strong>III</strong>), inversion-centered π–π stacking further consolidates the crystal packing, while in (<strong>II</strong>) no π–π interactions are observed.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 770-775"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Olga Yu. Vassilyeva , Vladimir N. Kokozay , Evgeny Goreshnik
{"title":"Whole-molecule disorder of the heterometallic complex diaqua-1κ2O-dichlorido-2κ2Cl-(μ-2-formyl-6-methoxyphenolato-1κ2O1,O2:2κO6){μ-2-methoxy-6-[(methylimino)methyl]phenolato-1κ2N,O1:2κO6}lead(II)nickel(II)","authors":"Olga Yu. Vassilyeva , Vladimir N. Kokozay , Evgeny Goreshnik","doi":"10.1107/S2056989025005857","DOIUrl":"10.1107/S2056989025005857","url":null,"abstract":"<div><div>In the crystal the title compound exhibits full-molecule disorder [occupancy ratio 0.711 (6): 0.289 (6)], generated by a false twofold rotation about the shorter, Ni–Pb, axis of the molecule.</div></div><div><div>The new molecular complex [NiPb(C<sub>9</sub>H<sub>10</sub>NO<sub>2</sub>)(C<sub>8</sub>H<sub>7</sub>NO<sub>3</sub>)Cl<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>] with the Schiff base 2-methoxy-6-[(methylimino)methyl]phenol and <em>ortho</em>-vanillin ligands, both deprotonated, crystallizes in the monoclinic space group <em>P</em>2<sub>1</sub>/<em>c</em> with one molecule per asymmetric unit. The heterometallic molecule exhibits a whole-molecule orientational disorder [occupancy ratio 0.711 (6): 0.289 (6)] about a pseudo-twofold rotation axis that roughly bisects the molecule along the Ni–Pb axis. The Ni centre coordination is distorted octahedral [Ni—N/O<sub>eq</sub> = 1.996 (8)–2.021 (7) Å, major component] with two water molecules in the apexes [2.088 (6) and 2.090 (5) Å]. The Pb atom is six-coordinate in a highly distorted tetragonal–bipyramidal geometry. Two phenolato and two methoxo O atoms from the deprotonated ligand moieties are nearly coplanar with the metal centre [Pb–O 2.301 (8)–2.740 (10) Å, major component], while the two chlorides are located on opposite sides of the plane [Pb—Cl = 2.821 (5) and 2.868 (5) Å]. The Ni–Pb pair of metals is bridged by two phenolato O atoms enabling a metal–metal separation of 3.441 (3)/3.477 (7) Å. Two intramolecular O–H⋯Cl hydrogen bonds between coordinated aqua and chloride ligands appear to be a reason for the Cl–Pb–Cl and O–Ni–O angles being far from 180°. In the solid state, the well-separated heterometallic molecules are interlinked by π–π stacking and weak O—H⋯Cl and C—H⋯Cl/O hydrogen bonds. The molecules show no significant intermolecular interactions: the minimal <em>M</em>⋯<em>M</em> distance in the crystal is about 7.65 Å (Ni⋯Pb).</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 667-671"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystal structure of 4-(3,5-dimethyl-1,7-diphenyl-1,7-dihydrodipyrazolo[3,4-b:4′,3′-e]pyridin-4-yl)phenol dimethyl sulfoxide disolvate","authors":"N’gandi N’gaza , Erwann Jeanneau , Catherine Marestin , Regis Mercier","doi":"10.1107/S2056989025006152","DOIUrl":"10.1107/S2056989025006152","url":null,"abstract":"<div><div>The molecular and crystal structure of the novel compound 4-(3,5-Dimethyl-1,7-diphenyl-1,7-dihydrodipyrazolo[3,4 − b:4′,3′-e]pyridin-4-yl)phenol are reported.</div></div><div><div>A new bispyrazolylpyridine(BPP)-containing derivative, namely, 4-(3,5-dimethyl-1,7-diphenyl-1,7-dihydrodipyrazolo[3,4-<em>b</em>:4′,3′-<em>e</em>]pyridin-4-yl)phenol (<strong>1</strong>), C<sub>27</sub>H<sub>21</sub>N<sub>5</sub>O·2C<sub>2</sub>H<sub>6</sub>OS, has been synthesized by a Hantzsch multicomponent reaction using acetic acid (AcOH) as solvent and copper(II) acetate monohydrate [Cu(OAc)<sub>2</sub>·H<sub>2</sub>O] as mild oxidant. The structure of the compound was fully characterized by single-crystal X-ray diffraction. The crystallographic study shows that the molecule crystallizes in the triclinic system with space group <em>P</em>1, with one molecule per asymmetric unit. Whereas the phenolic substituent in the <em>para</em> position of the pyridine group is highly twisted from the planar bispyrazolopyridine core [56.19 (4)°], the two phenyl rings present on the nitrogen atoms are only slightly distorted [11.77 (5) and 29.17 (5)°]. The crystal structure is consolidated by intermolecular C—H⋯O hydrogen bonds and π–π stacking interactions.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 711-713"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystallographic and spectroscopic characterization of 2-bromo-p-tolualdehyde","authors":"Eden E. Lanham , Joseph M. Tanski","doi":"10.1107/S2056989025006127","DOIUrl":"10.1107/S2056989025006127","url":null,"abstract":"<div><div>The molecule of the title halogenated benzaldehyde derivative contains an aldehyde moiety, <em>ortho</em> bromine, and <em>para</em> methyl group. Packing <em>via</em> van der Waals forces, the molecules are arranged with both offset face-to-face and an edge-to-face π-stacking interaction revealed by Hirshfeld surface characterization.</div></div><div><div>The title compound (systematic name: 2-bromo-4-methylbenzaldehyde), C<sub>8</sub>H<sub>7</sub>BrO, is a halogenated benzaldehyde derivative. The molecule contains an aldehyde moiety, <em>ortho</em> bromine, and <em>para</em> methyl group. Packing <em>via</em> van der Waals forces, the molecules are arranged with both offset face-to-face and an edge-to-face π-stacking interaction revealed by Hirshfeld surface characterization.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 744-747"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis and crystal structures of 6- and 8-methyl-3-phenylbenzo[e][1,2,4]triazines","authors":"Christos P. Constantinides , Syed Raza , Fadwat Bazzi , Nisreen Sharara , Simona Marincean","doi":"10.1107/S2056989025005882","DOIUrl":"10.1107/S2056989025005882","url":null,"abstract":"<div><div>The crystal structures of two Blatter radical precursors, 6-methyl-3-phenylbenzo[<em>e</em>][1,2,4]triazine and 8-methyl-3-phenylbenzo[<em>e</em>][1,2,4]triazine, exhibit extended conjugated heteroaromatic frameworks, with unidimensional columnar arrangements governed by π–π stacking interactions with little impact from the methyl substituent position on the core geometry.</div></div><div><div>The synthesis and single-crystal X-ray structures of two regioisomeric Blatter radical precursors, 6-methyl-3-phenylbenzo[<em>e</em>][1,2,4]triazine, (<strong>I</strong>), and 8-methyl-3-phenylbenzo[<em>e</em>][1,2,4]triazine (<strong>II</strong>), C<sub>14</sub>H<sub>11</sub>N<sub>3</sub>, are reported. Both compounds feature planar heteroaromatic frameworks with extensive π-conjugation across the benzo[<em>e</em>][1,2,4]triazine core. Compound <strong>I</strong> crystallizes in the orthorhombic space group <em>Pbca</em>, while <strong>II</strong> adopts the monoclinic space group <em>P</em>2<sub>1</sub>/<em>c</em>. Structural analysis reveals nearly identical bond lengths and angles across both isomers, indicating minimal influence of methyl substitution on core geometry. Supramolecular features are dominated by π–π stacking interactions, leading to one-dimensional columnar arrangements. Compound <strong>I</strong> exhibits alternating dimers with slippage in both stacking directions and forms hydrogen-bonded chains that generate dense, wave-like sheets. Compound <strong>II</strong> displays uniform stacking with regular interplanar distances and pronounced translational overlap. These structural insights contribute to understanding how regioisomeric substitution patterns influence the solid-state organization of Blatter radical precursors, with implications for their application in molecular electronics and spin materials.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 699-705"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis and crystal structure of a new isomer of poly[di-μ3-cyanido-μ-2,6-dimethylpyrazine-dicopper(I)]","authors":"Christian Näther","doi":"10.1107/S2056989025006267","DOIUrl":"10.1107/S2056989025006267","url":null,"abstract":"<div><div>In the crystal structure of the title compound, the copper(I) cations are linked by the cyanide anions into layers that are additionally connected by the 2,6-dimethylpyrazine ligands into a 3D network. The title compound represents a new isomer of Cu<sub>2</sub>(CN)<sub>2</sub>(2,6-dimethylpyrazine), which has already been reported in the literature.</div></div><div><div>The title compound, [Cu<sub>2</sub>(CN)<sub>2</sub>(C<sub>6</sub>H<sub>8</sub>N<sub>2</sub>)]<sub><em>n</em></sub> or Cu<sub>2</sub>(CN)<sub>2</sub>(2,6-dimethylpyrazine), was prepared by the reaction of copper(I) cyanide with 2,6-dimethylpyrazine in water. Its asymmetric unit consists of two crystallographically independent copper(I) cations and cyanide anions as well as one crystallographically independent 2,6-dimethylpyrazine ligand in general positions. Each copper cation is fourfold coordinated by one N atom of the 2,6-dimethylpyrazine ligand and three cyanide anions, that are disordered so that each C and N position has mixed occupancy with a ratio between N and C of 94:6 and 77:23. The copper cations are linked by the cyanide atoms into layers that are further connected into a 3D network by the 2,6-dimethylpyrazine ligands. Powder X-ray diffraction (PXRD) proves that a pure crystalline phase has been obtained. It is noted that this crystal structure represents a new isomer of Cu<sub>2</sub>(CN)<sub>2</sub>(2,6-dimethylpyrazine), which has already been reported in the literature [Chesnut <em>et al.</em> (2001<span><span>#</span></span>). <em>J. Chem. Soc. Dalton Trans</em>. pp. 2567–2580].</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 714-717"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Namig G. Shikhaliyev , Jonathan Cisterna , Ayten M. Gajar , Ayten A. Niyazova , Ali N. Khalilov , Victor N. Khrustalev , Alebel N. Belay , Abel M. Maharramov
{"title":"Crystal structure and Hirshfeld surface analysis of (E)-1-{2,2-dibromo-1-[4-(tert-butyl)phenyl]ethenyl}-2-(3,4-dimethylphenyl)diazene","authors":"Namig G. Shikhaliyev , Jonathan Cisterna , Ayten M. Gajar , Ayten A. Niyazova , Ali N. Khalilov , Victor N. Khrustalev , Alebel N. Belay , Abel M. Maharramov","doi":"10.1107/S2056989025005390","DOIUrl":"10.1107/S2056989025005390","url":null,"abstract":"<div><div>The title azo compound crystallizes in the triclinic space group <em>P</em>1 with two independent molecules in the asymmetric unit. Hirshfeld surface analysis and energy framework calculations revealed key non-covalent interactions such as C—H⋯π, C—H⋯Br, π–π stacking, and halogen bonding, which consolidate the crystal structure.</div></div><div><div>The title azo compound, C<sub>20</sub>H<sub>22</sub>Br<sub>2</sub>N<sub>2</sub>, crystallizes in the triclinic space group <em>P</em>1 (No. 2) with two independent molecules in the asymmetric unit. The molecular structure was analyzed using spectroscopic and crystallographic techniques, confirming the expected configuration and electronic environment. Hirshfeld surface analysis revealed key non-covalent interactions such as C—H⋯π, C—H⋯Br, π–π stacking, and halogen bonding, which consolidate the crystal structure. The study provides valuable insights into the structural features and intermolecular interactions of this brominated azo compound, which may have potential applications in optoelectronic materials, dyes, and molecular switches.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 662-666"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mamadou Lo , Bineta Sene , Anastasie Manga , Aissatou Alioune Gaye , Abdoulaye Gassama , Amadou Diop , Arie van der Lee , Sébastien Richeter
{"title":"Synthesis, crystal structure and thermal properties of N′-[(E)-3,5-di-tert-butyl-2-hydroxybenzylidene]-2-hydroxybenzohydrazide ethanol quatersolvate","authors":"Mamadou Lo , Bineta Sene , Anastasie Manga , Aissatou Alioune Gaye , Abdoulaye Gassama , Amadou Diop , Arie van der Lee , Sébastien Richeter","doi":"10.1107/S2056989025006504","DOIUrl":"10.1107/S2056989025006504","url":null,"abstract":"<div><div>The structure of the title compound, 4C<sub>22</sub>H<sub>28</sub>N<sub>2</sub>O<sub>3</sub>·C<sub>2</sub>H<sub>6</sub>O, exhibits a one-dimensional pore structure composed of channels formed by molecules having an acylhydrazone segment connecting a 3,5-di-<em>tert</em>-butylphenol unit and a 2-hydroxyphenol unit. The channels contain disordered ethanol molecules.</div></div><div><div>In the structure of the title compound, 4C<sub>22</sub>H<sub>28</sub>N<sub>2</sub>O<sub>3</sub>·C<sub>2</sub>H<sub>6</sub>O, molecules composed of an acylhydrazone segment bridging a 3,5-di-<em>tert</em>-butylphenol unit and a 2-hydroxyphenol unit form columnar quartet channels along the <em>a</em>-axis, within which disordered ethanol solvent molecules reside in two inversion-centre-related positions. Intermolecular hydrogen bonds assemble the channels between the columnar molecules through the hosted ethanol molecule, complemented by weaker van der Waals-type interactions. These weak van der Waals interactions also hold the columns together. Additionally, the title compound demonstrated notable thermal stability at temperatures of up to 251°C. The sharp melting point peak observed in the DSC confirmed its crystalline structure.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 733-737"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Siti Syaida Sirat , Mohd Mustaqim Rosli , Sang Loon Tan , Ibrahim Abdul Razak , Omar bin Shawkataly
{"title":"Synthesis, crystal structure, and Hirshfeld surface analysis of undecacarbonyl{tris[4-(methylsulfanyl)phenyl]arsine}-triangulo-triosmium(0)","authors":"Siti Syaida Sirat , Mohd Mustaqim Rosli , Sang Loon Tan , Ibrahim Abdul Razak , Omar bin Shawkataly","doi":"10.1107/S2056989025006541","DOIUrl":"10.1107/S2056989025006541","url":null,"abstract":"<div><div>The title compound comprises a triangle of Os atoms, two of which are bonded to four carbonyl ligands. The third Os atom is bound to three carbonyl ligands, and the arsine ligand [As(C<sub>6</sub>H<sub>4</sub>SCH<sub>3</sub>)<sub>3</sub>] occupies the equatorial position. In the crystal, the molecules are linked by C—H⋯O hydrogen bonds.</div></div><div><div>The title compound, [Os<sub>3</sub>(C<sub>21</sub>H<sub>21</sub>AsS<sub>3</sub>)(CO)<sub>11</sub>] or [Os<sub>3</sub>{As(C<sub>6</sub>H<sub>4</sub>SCH<sub>3</sub>)<sub>3</sub>}(CO)<sub>11</sub>], comprises a triangle of Os atoms, two of which are bonded to four carbonyl ligands. The third Os atom is bound to three carbonyl ligands, and the arsine ligand [As(C<sub>6</sub>H<sub>4</sub>SCH<sub>3</sub>)<sub>3</sub>] occupies the equatorial position. In the crystal, the molecules are linked by C—H⋯O hydrogen bonds. To further analyse the intermolecular interactions, a Hirshfeld surface analysis was performed. Two out of the three methylsulfanyl groups are disordered over two sites with final refinement occupancy ratios of 0.612 (12):0.388 (12) and 0.620 (9):0.380 (9).</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 8","pages":"Pages 765-769"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}