IUCrDataPub Date : 2024-12-01DOI: 10.1107/S2414314624011763
Themmila Khamrang , A. Kannan , C. Ponraj , Madhukar Hemamalini , G. Jerald Maria Antony , Dhandayutham Saravanan
{"title":"6-Bromo-9,9-diethyl-N,N-diphenylfluoren-2-amine","authors":"Themmila Khamrang , A. Kannan , C. Ponraj , Madhukar Hemamalini , G. Jerald Maria Antony , Dhandayutham Saravanan","doi":"10.1107/S2414314624011763","DOIUrl":"10.1107/S2414314624011763","url":null,"abstract":"<div><div>In the title compound, the dihedral angles between the fluorene fused-ring system and the pendant phenyl groups are 67.76 (12) and 88.38 (12)°. In the crystal, weak pairwise C—H⋯π interactions link the molecules into inversion dimers.</div></div><div><div>In the title compound, C<sub>29</sub>H<sub>26</sub>BrN, the dihedral angles between the fluorene fused-ring system and the pendant phenyl groups are 67.76 (12) and 88.38 (12)°. In the crystal, weak pairwise C—H⋯π interactions link the molecules into inversion dimers.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (217KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11701759/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S2414314624010496
Carren Nyapola , Sizwe J. Zamisa , Eric M. Njogu , Bernard Omondi
{"title":"2-Amino-5-oxo-4-(thiophen-2-yl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile","authors":"Carren Nyapola , Sizwe J. Zamisa , Eric M. Njogu , Bernard Omondi","doi":"10.1107/S2414314624010496","DOIUrl":"10.1107/S2414314624010496","url":null,"abstract":"<div><div>In the crystal structure of the title compound, intermolecular N—H⋯N and N—H⋯O hydrogen bonds form a two-dimensional supramolecular network along the <em>ac</em> plane, contributing to the cohesion of the crystal.</div></div><div><div>The crystal structure of the title compound, C<sub>14</sub>H<sub>12</sub>N<sub>2</sub>O<sub>2</sub>S, reveals two symmetrically independent molecules within the asymmetric unit. Each molecule contains a chromenone core attached to a 2-thiophene ring, cyano, and amino groups. The 2-thiophene ring of one of the two molecules in the asymmetric unit was found to be disordered over two positions, with the major component having a site occupancy factor of 0.837 (2). The 2-thiophene ring is nearly orthogonal to the fused 4<em>H</em>-pyran ring, with dihedral angles between the two sets of planes being 89.5 (5) and 89.63 (8)°. Intermolecular hydrogen bonding, involving N—H⋯N and N—H⋯O interactions, creates two distinct motifs leading to the formation of a two-dimensional supramolecular network along the crystallographic <em>ac</em> plane.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (355KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618874/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S2414314624011386
Halliru Ibrahim , Sizwe J. Zamisa , Muhammad D. Bala , Pinkie Ntola , Holger B. Friedrich
{"title":"3-(2-Hydroxyethyl)-1-(4-nitrophenyl)-1H-imidazol-3-ium bromide","authors":"Halliru Ibrahim , Sizwe J. Zamisa , Muhammad D. Bala , Pinkie Ntola , Holger B. Friedrich","doi":"10.1107/S2414314624011386","DOIUrl":"10.1107/S2414314624011386","url":null,"abstract":"<div><div>The crystal structure of an imidazolium bromide salt is described.</div></div><div><div>The molecular structure of the title salt, C<sub>11</sub>H<sub>12</sub>N<sub>3</sub>O<sub>3</sub><sup>+</sup>·Br<sup>−</sup>, reveals near co-planarity between the the imidazole and 4-nitrobenzene moieties with a dihedral angle of 8.99 (14)° between their planes. A prominent feature in the molecular packing is the bromide anion acting as a double acceptor for O—H⋯Br and C—H⋯Br hydrogen-bonds, leading to a linear chain propagating along [110]. The crystal studied was refined as an inversion twin, with the minor component = 0.081 (8).<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (192KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618875/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S2414314624010733
Mickey Vinodh , Fatemeh H. Alipour , Talal F. Al-Azemi
{"title":"Structural insights into 1,4-bis(neopentyloxy)pillar[5]arene and the pyridine host–guest system","authors":"Mickey Vinodh , Fatemeh H. Alipour , Talal F. Al-Azemi","doi":"10.1107/S2414314624010733","DOIUrl":"10.1107/S2414314624010733","url":null,"abstract":"<div><div>The crystal structure of a neopentyloxypillar[5]arene with two pyridine molecules encapsulated in the macrocyclic cavity is reported.</div></div><div><div>The crystal structure of 1,4-bis(neopentyloxy)pillar[5]arene, C<sub>95</sub>H<sub>140</sub>N<sub>2</sub>O<sub>10</sub> (<strong>TbuP)</strong>, featuring two encapsulated pyridine molecules, reveals significant host–guest interactions. Interestingly, the pyridine guests are positioned near the neopentyloxy substituents instead of the electron-rich aromatic core of the pillar[5]arene. This spatial arrangement suggests a preference for the pyridine molecules to engage with the aliphatic regions of the host. Detailed analysis of the structural characteristics of this host–guest system (<strong>TbuP·2Py)</strong>, as well as its packing pattern within the crystal network, is presented and discussed.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (522KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618873/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"3aH,4H,5H,8H,9H,9aH-Cycloocta[d][1,3]dioxole-2-thione","authors":"Dieter Schollmeyer , Claudia Kammler , Heiner Detert","doi":"10.1107/S2414314624010198","DOIUrl":"10.1107/S2414314624010198","url":null,"abstract":"<div><div>The thionocarbonate of <em>trans</em>-cyclooctenediol, C<sub>9</sub>H<sub>12</sub>O<sub>2</sub>S, crystallizes with a 9/1 disorder in the position of the <em>R,R</em> and <em>S,S</em>-enantiomers. As a result of <em>trans</em>-annulation, both rings adopt a twist conformation.</div></div><div><div>The thionocarbonate of <em>trans</em>-cyclooctenediol, C<sub>9</sub>H<sub>12</sub>O<sub>2</sub>S, crystallizes with a 9/1 disorder in the position of the <em>R,R</em> and <em>S,S</em>-enantiomers. As a result of <em>trans</em>-annulation, both rings adopt a twist conformation.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (219KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618877/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S2414314624011167
Fatima Setifi , Zouaoui Setifi , Hans Reuter , Mohammad Hadi Al-Douh , Abderezak Addala
{"title":"Bis(azido-κN1)bis(2,2′-dipyridylamine-κ2N1,N1′)iron(II) monohydrate","authors":"Fatima Setifi , Zouaoui Setifi , Hans Reuter , Mohammad Hadi Al-Douh , Abderezak Addala","doi":"10.1107/S2414314624011167","DOIUrl":"10.1107/S2414314624011167","url":null,"abstract":"<div><div>Distortions of the octahedral {N<sub>6</sub>}-coordination of the Fe<sup>II</sup> ion in the title complex Fe(dpa)<sub>2</sub>(N<sub>3</sub>)<sub>2</sub> are described in terms of bond-length and angle variations alongside to the different kind of intermolecular hydrogen bonds between the azide ions and the dpa ligands of the complex and the water molecule of crystallization.</div></div><div><div>In the hydrated title complex, [Fe(dpa)<sub>2</sub>(N<sub>3</sub>)<sub>2</sub>]·H<sub>2</sub>O (dpa is 2,2′-dipyridylamine, C<sub>10</sub>H<sub>9</sub>N<sub>3</sub>), the Fe<sup>II</sup> ion is coordinated in a distorted octahedral manner by two neutral, chelating dpa ligands and two anionic, monodentate azide (N<sub>3</sub><sup>−</sup>) ions in a <em>cis</em>-configuration. Distortion results from different Fe—N bond lengths [2.1397 (13)–2.2254 (12) Å] and (N—Fe—N)<sub><em>cis</em></sub> [80.12 (4)–96.72 (5)°] and (N—Fe—N)<sub><em>trans</em></sub> [166.73 (4)–176.62 (5)°] bond angles. Hydrogen bonds exist between two symmetry-related water molecules as hydrogen donors to the γ-N atoms of azido ligands of two adjacent iron complexes and as acceptors from the amide group of the dpa ligands of two additional iron complexes. The hydrogen-bonding pattern results in eight-membered ⋯H—O—H⋯N⋯ rings and a band-like arrangement of the molecules involved. Additional, weaker hydrogen bonds between the α-N atom of the second azido ligand as acceptors and the amide groups of the second dpa ligands as donors cross-link neighboring bands to layers extending parallel to (001).<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (324KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618867/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S2414314624011076
Dieter Schollmeyer , Heiner Detert
{"title":"(10Z)-4H,5H,6H,7H,8H,9H-Cyclodeca[d][1,2,3]selenadiazole","authors":"Dieter Schollmeyer , Heiner Detert","doi":"10.1107/S2414314624011076","DOIUrl":"10.1107/S2414314624011076","url":null,"abstract":"<div><div>In the title compound, which was prepared from a semicarbazone and selenium dioxide, the planes of the heterocycle and the <em>cis</em> double bond are almost mutually orthogonal and the hexamethylene tether is nearly strain-free.</div></div><div><div>The title compound, C<sub>10</sub>H<sub>14</sub>N<sub>2</sub>Se, was prepared from a semicarbazone and selenium dioxide. The planes of the heterocycle and the <em>cis</em> double bond are almost mutually orthogonal and the hexamethylene tether is nearly strain-free.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (208KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618876/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S2414314624010939
Ann-Kathrin Pancratz , Anne Kamrowski , Hans Reuter
{"title":"catena-Poly[[diphenyltin(IV)]-di-μ-isothiocyanato]: an unprecedented layered coordination polymer resulting from bridging κ2N:S thiocyanato ligands","authors":"Ann-Kathrin Pancratz , Anne Kamrowski , Hans Reuter","doi":"10.1107/S2414314624010939","DOIUrl":"10.1107/S2414314624010939","url":null,"abstract":"<div><div>Diphenyltin(IV) diisothiocyanate, Ph<sub>2</sub>Sn(NCS)<sub>2</sub>, exhibits a new kind of intermolecular association with loss of molecular individuality and formation of a two-dimensional layer structure of octahedrally coordinated tin atoms linked <em>via</em> ambidentate <em>κ</em><sup>2</sup><em>NS</em> thiocyanate ions.</div></div><div><div>In the title compound, diphenyltin(IV) diisothiocyanate, [Sn(NCS)<sub>2</sub>(C<sub>6</sub>H<sub>5</sub>)<sub>2</sub>]<sub><em>n</em></sub> or Ph<sub>2</sub>Sn(NCS)<sub>2</sub>, comparatively long tin–nitrogen and short tin–sulfur bonds prove that the ambidentate isothiocyanate ion acts as a bridge between two neighboring, octahedrally coordinated tin atoms. As a result, the molecules lose their individuality in favor of a layered coordination polymer that represents a new type of molecular interactions in the structural chemistry of diorganotin(IV) dihalides/pseudohalides. The tin atom is located on a center of inversion.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (232KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618869/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S2414314624010745
Zizipho Xantini , Alfred Muller , Koop Lammertsma
{"title":"2,4-Dichloro-6-{N-[2-(trifluoromethyl)phenyl]carboximidoyl}phenol","authors":"Zizipho Xantini , Alfred Muller , Koop Lammertsma","doi":"10.1107/S2414314624010745","DOIUrl":"10.1107/S2414314624010745","url":null,"abstract":"<div><div>The title compound was synthesized by the condensation between trifluoromethylaniline and dichlorosalicylaldehyde by nucleophilic addition, forming a hemiaminal, followed by a dehydration to generate an imine. The compound crystallizes in an orthorhombic <em>Pbca</em> (<em>Z</em> = 8) space group with a dihedral angle of 44.70 (5)° between the two aromatic rings. In the crystal, the molecules pack together to form a zigzag pattern along the <em>c</em> axis.</div></div><div><div>The title compound, C<sub>14</sub>H<sub>8</sub>Cl<sub>2</sub>F<sub>3</sub>NO, was synthesized by the condensation between trifluoromethylaniline and dichlorosalicylaldehyde by nucleophilic addition, forming a hemiaminal, followed by a dehydration to generate an imine. The compound crystallizes in an orthorhombic <em>Pbca</em> (<em>Z</em> = 8) space group with a dihedral angle of 44.70 (5)° between the two aromatic rings. In the crystal, the molecules pack together to form a zigzag pattern along the <em>c</em> axis.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (261KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618864/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IUCrDataPub Date : 2024-11-01DOI: 10.1107/S241431462401143X
Eric M. Njogu , David O. Juma , Sizwe J. Zamisa , Bernard Omondi , Vincent O. Nyamori
{"title":"4′-(2-Methoxyphenyl)-2,2′:6′,2′′-terpyridine","authors":"Eric M. Njogu , David O. Juma , Sizwe J. Zamisa , Bernard Omondi , Vincent O. Nyamori","doi":"10.1107/S241431462401143X","DOIUrl":"10.1107/S241431462401143X","url":null,"abstract":"<div><div>In the title compound, the dihedral angles between the central pyridine ring and the peripheral rings are 22.24 (4) and 2.38 (4)°. In the crystal, pairwise C—H⋯N hydrogen bonds form inversion dimers described by an <em>R</em><sup>2</sup><sub>2</sub>(6) graph set descriptor, which further interact through C—H⋯π and π–π interactions, creating a two-dimensional supramolecular network propagating in the <em>bc</em> plane.</div></div><div><div>In the title compound, C<sub>22</sub>H<sub>17</sub>N<sub>3</sub>O, the N atoms of the pyridine rings exhibit a typical <em>trans</em>–<em>trans</em> arrangement: the dihedral angles between the central pyridine ring and the peripheral rings are 22.24 (4) and 2.38 (4)°. In the crystal, pairwise C—H⋯N hydrogen bonds form inversion dimers described by an <em>R</em><sup>2</sup><sub>2</sub>(6) graph set descriptor, which further interact through C—H⋯π and π–π interactions, creating a two-dimensional supramolecular network propagating in the <em>bc</em> plane.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (260KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618872/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}