Pub Date : 2024-11-08eCollection Date: 2024-11-01DOI: 10.1107/S2414314624010496
Carren Nyapola, Sizwe J Zamisa, Eric M Njogu, Bernard Omondi
The crystal structure of the title compound, C14H12N2O2S, reveals two symmetrically independent mol-ecules within the asymmetric unit. Each mol-ecule contains a chromenone core attached to a 2-thio-phene ring, cyano, and amino groups. The 2-thio-phene ring of one of the two mol-ecules 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-thio-phene ring is nearly orthogonal to the fused 4H-pyran ring, with dihedral angles between the two sets of planes being 89.5 (5) and 89.63 (8)°. Inter-molecular hydrogen bonding, involving N-H⋯N and N-H⋯O inter-actions, creates two distinct motifs leading to the formation of a two-dimensional supra-molecular network along the crystallographic ac plane.
{"title":"2-Amino-5-oxo-4-(thio-phen-2-yl)-5,6,7,8-tetra-hydro-4<i>H</i>-chromene-3-carbo-nitrile.","authors":"Carren Nyapola, Sizwe J Zamisa, Eric M Njogu, Bernard Omondi","doi":"10.1107/S2414314624010496","DOIUrl":"10.1107/S2414314624010496","url":null,"abstract":"<p><p>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 mol-ecules within the asymmetric unit. Each mol-ecule contains a chromenone core attached to a 2-thio-phene ring, cyano, and amino groups. The 2-thio-phene ring of one of the two mol-ecules 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-thio-phene ring is nearly orthogonal to the fused 4<i>H</i>-pyran ring, with dihedral angles between the two sets of planes being 89.5 (5) and 89.63 (8)°. Inter-molecular hydrogen bonding, involving N-H⋯N and N-H⋯O inter-actions, creates two distinct motifs leading to the formation of a two-dimensional supra-molecular network along the crystallographic <i>ac</i> plane.</p>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 Pt 11","pages":"x241049"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","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}
Pub Date : 2024-11-08eCollection Date: 2024-11-01DOI: 10.1107/S2414314624010733
Mickey Vinodh, Fatemeh H Alipour, Talal F Al-Azemi
The crystal structure of 1,4-bis-(neopent-yloxy)pillar[5]arene, C95H140N2O10 (TbuP), featuring two encapsulated pyridine mol-ecules, reveals significant host-guest inter-actions. Inter-estingly, the pyridine guests are positioned near the neopent-yloxy substituents instead of the electron-rich aromatic core of the pillar[5]arene. This spatial arrangement suggests a preference for the pyridine mol-ecules to engage with the aliphatic regions of the host. Detailed analysis of the structural characteristics of this host-guest system (TbuP·2Py), as well as its packing pattern within the crystal network, is presented and discussed.
{"title":"Structural insights into 1,4-bis-(neopent-yloxy)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":"<p><p>The crystal structure of 1,4-bis-(neopent-yloxy)pillar[5]arene, C<sub>95</sub>H<sub>140</sub>N<sub>2</sub>O<sub>10</sub> (<b>TbuP)</b>, featuring two encapsulated pyridine mol-ecules, reveals significant host-guest inter-actions. Inter-estingly, the pyridine guests are positioned near the neopent-yloxy substituents instead of the electron-rich aromatic core of the pillar[5]arene. This spatial arrangement suggests a preference for the pyridine mol-ecules to engage with the aliphatic regions of the host. Detailed analysis of the structural characteristics of this host-guest system (<b>TbuP·2Py)</b>, as well as its packing pattern within the crystal network, is presented and discussed.</p>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 Pt 11","pages":"x241073"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","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}
The thio-nocarbonate of trans-cyclo-octenediol, C9H12O2S, crystallizes with a 9/1 disorder in the position of the R,R and S,S-enanti-omers. As a result of trans-annulation, both rings adopt a twist conformation.
{"title":"3a<i>H</i>,4<i>H</i>,5<i>H</i>,8<i>H</i>,9<i>H</i>,9a<i>H</i>-Cyclo-octa-[<i>d</i>][1,3]dioxole-2-thione.","authors":"Dieter Schollmeyer, Claudia Kammler, Heiner Detert","doi":"10.1107/S2414314624010198","DOIUrl":"10.1107/S2414314624010198","url":null,"abstract":"<p><p>The thio-nocarbonate of <i>trans</i>-cyclo-octenediol, C<sub>9</sub>H<sub>12</sub>O<sub>2</sub>S, crystallizes with a 9/1 disorder in the position of the <i>R,R</i> and <i>S,S</i>-enanti-omers. As a result of <i>trans</i>-annulation, both rings adopt a twist conformation.</p>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 Pt 11","pages":"x241019"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","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}
Pub Date : 2024-11-08eCollection Date: 2024-11-01DOI: 10.1107/S2414314624010617
Joshua Birch, Eric Cyriel Hosten, Richard Betz
The title compound, C18H12Cl3O4P, is the symmetric phosphate derived from para-chloro-phenol and phospho-ric acid. Two of the three aromatic moieties adopt syn-orientation towards the P=O bond while the last chloro-phenol ring is pointing away from this bond. In the extended structure, C-H⋯O bonds connect the individual mol-ecules into sheets lying perpendicular to the crystallographic b axis.
标题化合物 C18H12Cl3O4P 是对氯苯酚和磷酸的对称磷酸酯。三个芳香分子中有两个朝向 P=O 键,而最后一个氯酚环则远离该键。在扩展结构中,C-H⋯O 键将各个分子单元连接成垂直于晶体学 b 轴的薄片。
{"title":"Tris(4-chloro-phen-yl) phosphate.","authors":"Joshua Birch, Eric Cyriel Hosten, Richard Betz","doi":"10.1107/S2414314624010617","DOIUrl":"10.1107/S2414314624010617","url":null,"abstract":"<p><p>The title compound, C<sub>18</sub>H<sub>12</sub>Cl<sub>3</sub>O<sub>4</sub>P, is the symmetric phosphate derived from <i>para</i>-chloro-phenol and phospho-ric acid. Two of the three aromatic moieties adopt <i>syn</i>-orientation towards the P=O bond while the last chloro-phenol ring is pointing away from this bond. In the extended structure, C-H⋯O bonds connect the individual mol-ecules into sheets lying perpendicular to the crystallographic <i>b</i> axis.</p>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 Pt 11","pages":"x241061"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618868/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142796770","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}
Pub Date : 2024-09-01DOI: 10.1107/S2414314624008885
Patrick Höss , Sheng-Chun Chou , Philip L. Russ , Ralf J. C. Locke , Thomas Schleid
Yb2Te3O9 is isotypic with Tm2Te3O9 and Lu2Te3O9 and crystallizes in the C-type modification of Ln2Te3O9 compounds.
The title compound, diytterbium enneaoxidotritellurate(IV), was obtained in its C-type crystal structure from the binary oxides at 1073 K using a CsCl flux. It crystallizes isotypically with C-type Tm2Te3O9 and Lu2Te3O9, closing this gap of knowledge.
在 1073 K 的温度下,利用 CsCl 助熔剂从二元氧化物中获得了 C 型晶体结构的标题化合物--烯氧化三碲酸二镱(IV)。它与 C 型 Tm2Te3O9 和 Lu2Te3O9 的晶体同型,从而填补了这一知识空白。
{"title":"C-type Yb2Te3O9","authors":"Patrick Höss , Sheng-Chun Chou , Philip L. Russ , Ralf J. C. Locke , Thomas Schleid","doi":"10.1107/S2414314624008885","DOIUrl":"10.1107/S2414314624008885","url":null,"abstract":"<div><div>Yb<sub>2</sub>Te<sub>3</sub>O<sub>9</sub> is isotypic with Tm<sub>2</sub>Te<sub>3</sub>O<sub>9</sub> and Lu<sub>2</sub>Te<sub>3</sub>O<sub>9</sub> and crystallizes in the <em>C</em>-type modification of <em>Ln</em><sub>2</sub>Te<sub>3</sub>O<sub>9</sub> compounds.</div></div><div><div>The title compound, diytterbium enneaoxidotritellurate(IV), was obtained in its <em>C</em>-type crystal structure from the binary oxides at 1073 K using a CsCl flux. It crystallizes isotypically with <em>C</em>-type Tm<sub>2</sub>Te<sub>3</sub>O<sub>9</sub> and Lu<sub>2</sub>Te<sub>3</sub>O<sub>9</sub>, closing this gap of knowledge.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (180KB)</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 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11451026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383071","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}
Pub Date : 2024-09-01DOI: 10.1107/S2414314624009064
Fatima Setifi , Zouaoui Setifi , Thang Pham Chien , Mohammad Hadi Al-Douh , Abderezak Addala
The title dinuclear and centrosymmetric complex molecule exhibits a highly distorted octahedral O4N2 coordination set about the central zinc(II) atom.
The title compound, [Zn2(C6H8O4)2(C10H9N3)2]·3H2O or {Zn2[(C5H4N)2NH]2[μ-(CH2)4(COO)2]2}·3H2O, was separated from the solvothermal reaction of zinc(II) sulfate heptahydrate, 2,2′-dipyridylamine and sodium adipate. The dinuclear metal complex has a centrosymmetric structure, with the ZnII atom adopting a highly distorted octahedral coordination sphere composed of four oxygen atoms from bridging adipato ligands and two pyridine nitrogen atoms. In the crystal, the title compound aggregates into a tri-periodic supramolecular structure through intermolecular hydrogen-bonding networks of the form O—H⋯O and N—H⋯O.
{"title":"Di-μ-adipato-κ4O1,O1′:O6,O6′-bis[(2,2′-dipyridylamine-κ2N,N′)zinc(II)] trihydrate","authors":"Fatima Setifi , Zouaoui Setifi , Thang Pham Chien , Mohammad Hadi Al-Douh , Abderezak Addala","doi":"10.1107/S2414314624009064","DOIUrl":"10.1107/S2414314624009064","url":null,"abstract":"<div><div>The title dinuclear and centrosymmetric complex molecule exhibits a highly distorted octahedral O<sub>4</sub>N<sub>2</sub> coordination set about the central zinc(II) atom.</div></div><div><div>The title compound, [Zn<sub>2</sub>(C<sub>6</sub>H<sub>8</sub>O<sub>4</sub>)<sub>2</sub>(C<sub>10</sub>H<sub>9</sub>N<sub>3</sub>)<sub>2</sub>]·3H<sub>2</sub>O or {Zn<sub>2</sub>[(C<sub>5</sub>H<sub>4</sub>N)<sub>2</sub>NH]<sub>2</sub>[μ-(CH<sub>2</sub>)<sub>4</sub>(COO)<sub>2</sub>]<sub>2</sub>}·3H<sub>2</sub>O, was separated from the solvothermal reaction of zinc(II) sulfate heptahydrate, 2,2′-dipyridylamine and sodium adipate. The dinuclear metal complex has a centrosymmetric structure, with the Zn<sup>II</sup> atom adopting a highly distorted octahedral coordination sphere composed of four oxygen atoms from bridging adipato ligands and two pyridine nitrogen atoms. In the crystal, the title compound aggregates into a tri-periodic supramolecular structure through intermolecular hydrogen-bonding networks of the form O—H⋯O and N—H⋯O.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (235KB)</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 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11451035/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383075","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}
In the title compound, a highly fluorescent boron–dipyrromethene dye, the methylpropionate moieties have different conformations. In the crystal, weak C—H⋯F and C—H⋯O interactions link the molecules.
In the title compound, C21H27BF2N2O4, a highly fluorescent boron–dipyrromethene dye, the methylpropionate moieties have different conformations. In the crystal, weak C—H⋯F and C—H⋯O interactions link the molecules. Some optical properties are presented.
{"title":"Redetermined structure of methyl 3-{4,4-difluoro-2-[2-(methoxycarbonyl)ethyl]-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacen-6-yl}propionate","authors":"Dieter Schollmeyer , Matthias Jochen , Heiner Detert","doi":"10.1107/S2414314624008848","DOIUrl":"10.1107/S2414314624008848","url":null,"abstract":"<div><div>In the title compound, a highly fluorescent boron–dipyrromethene dye, the methylpropionate moieties have different conformations. In the crystal, weak C—H⋯F and C—H⋯O interactions link the molecules.</div></div><div><div>In the title compound, C<sub>21</sub>H<sub>27</sub>BF<sub>2</sub>N<sub>2</sub>O<sub>4</sub>, a highly fluorescent boron–dipyrromethene dye, the methylpropionate moieties have different conformations. In the crystal, weak C—H⋯F and C—H⋯O interactions link the molecules. Some optical properties are presented.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (186KB)</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 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11451027/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383169","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}
Pub Date : 2024-09-01DOI: 10.1107/S2414314624008666
Jiha Sung
The crystal structure of a pyrazole chalcone is reported.
In the title compound, C26H22N2O3, the dihedral angle between the benzene and pyrazole rings of the chalcone unit is 88.3 (1)°. The pyrazole ring has two attached phenyl rings that form dihedral angles with the pyrazole ring of 22.6 (2) and 40.0 (1)°. In the crystal, pairwise C—H⋯O hydrogen bonds generate R22(20) inversion dimers.
{"title":"(E)-1-(3,4-Dimethoxyphenyl)-3-(1,3-diphenyl-1H-pyrazol-4-yl)prop-2-en-1-one","authors":"Jiha Sung","doi":"10.1107/S2414314624008666","DOIUrl":"10.1107/S2414314624008666","url":null,"abstract":"<div><div>The crystal structure of a pyrazole chalcone is reported.</div></div><div><div>In the title compound, C<sub>26</sub>H<sub>22</sub>N<sub>2</sub>O<sub>3</sub>, the dihedral angle between the benzene and pyrazole rings of the chalcone unit is 88.3 (1)°. The pyrazole ring has two attached phenyl rings that form dihedral angles with the pyrazole ring of 22.6 (2) and 40.0 (1)°. In the crystal, pairwise C—H⋯O hydrogen bonds generate <em>R</em><sup>2</sup><sub>2</sub>(20) inversion dimers.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (250KB)</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 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11451031/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383349","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}
Pub Date : 2024-09-01DOI: 10.1107/S241431462400885X
Christo J. Botha , Gerda Fouche , Frederick P. Malan
The single-crystal structure elucidation of diplodiatoxin, a toxic metabolite of Diplodia maydis, is described.
The molecular structure of C18H28O4, (+)-diplodiatoxin, is described, whereby the absolute configuration of the structure of diplodiatoxin has been confirmed by single-crystal X-ray diffraction. Diplodiatoxin crystallizes in the chiral P43212 space group with one molecule in the asymmetric unit.
本文描述了 C18H28O4((+)-二氯靛红毒素)的分子结构,并通过单晶 X 射线衍射证实了二氯靛红毒素结构的绝对构型。双氯靛红在手性 P43212 空间群中结晶,不对称单元中有一个分子。
{"title":"(1R,2S,4aR,6S,8R,8aS)-1-(3-Hydroxypropanoyl)-1,3,6,8-tetramethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalene-2-carboxylic acid","authors":"Christo J. Botha , Gerda Fouche , Frederick P. Malan","doi":"10.1107/S241431462400885X","DOIUrl":"10.1107/S241431462400885X","url":null,"abstract":"<div><div>The single-crystal structure elucidation of diplodiatoxin, a toxic metabolite of <em>Diplodia maydis</em>, is described.</div></div><div><div>The molecular structure of C<sub>18</sub>H<sub>28</sub>O<sub>4</sub>, (+)-diplodiatoxin, is described, whereby the absolute configuration of the structure of diplodiatoxin has been confirmed by single-crystal X-ray diffraction. Diplodiatoxin crystallizes in the chiral <em>P</em>4<sub>3</sub>2<sub>1</sub>2 space group with one molecule in the asymmetric unit.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (422KB)</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 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11451037/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383350","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}
Pub Date : 2024-09-01DOI: 10.1107/S2414314624008903
Huizi Liu , Changzeng Fan , Bin Wen , Lifeng Zhang
Ti4Fe2C0.82O0.18 is the first example where C and O atoms co-occupy the same site in filled Ti2Fe structures.
The phase with composition Ti4Fe2C0.82O0.18, tetratitanium diiron carbide oxide, was unexpectedly synthesized by high-pressure sintering (HPS) of a stoichiometric mixture with nominal composition Ti2Fe. The Ti4Fe2C0.82O0.18 phase crystallizes in the Fd
m space group and can be considered as the Ti2Fe structure filled with C and O atoms co-occupying the same octahedral void [occupancy ratio 0.82 (7):0.18 (7)]. The Ti4Fe2C0.82O0.18 phase is isotypic with Ti4Ni2C and Ti4Fe2O0.407, and is the first example where C and O atoms co-occupy the same site in filled Ti2Fe structures.
通过高压烧结(HPS)标称成分为 Ti2Fe 的化学计量混合物,意外合成了成分为 Ti4Fe2C0.82O0.18 的四钛二铁碳化物相。Ti4Fe2C0.82O0.18 相在 Fd m 空间群中结晶,可视为填充了 C 原子和 O 原子的 Ti2Fe 结构,它们共同占据同一个八面体空隙[占据比为 0.82 (7):0.18 (7)]。Ti4Fe2C0.82O0.18 相与 Ti4Ni2C 和 Ti4Fe2O0.407 同型,是填充 Ti2Fe 结构中 C 原子和 O 原子共占同一位点的第一个实例。
{"title":"Ti4Fe2C0.82O0.18","authors":"Huizi Liu , Changzeng Fan , Bin Wen , Lifeng Zhang","doi":"10.1107/S2414314624008903","DOIUrl":"10.1107/S2414314624008903","url":null,"abstract":"<div><div>Ti<sub>4</sub>Fe<sub>2</sub>C<sub>0.82</sub>O<sub>0.18</sub> is the first example where C and O atoms co-occupy the same site in filled Ti<sub>2</sub>Fe structures.</div></div><div><div>The phase with composition Ti<sub>4</sub>Fe<sub>2</sub>C<sub>0.82</sub>O<sub>0.18</sub>, tetratitanium diiron carbide oxide, was unexpectedly synthesized by high-pressure sintering (HPS) of a stoichiometric mixture with nominal composition Ti<sub>2</sub>Fe. The Ti<sub>4</sub>Fe<sub>2</sub>C<sub>0.82</sub>O<sub>0.18</sub> phase crystallizes in the <em>Fd</em><blockquote><div><figure><img></figure></div></blockquote><em>m</em> space group and can be considered as the Ti<sub>2</sub>Fe structure filled with C and O atoms co-occupying the same octahedral void [occupancy ratio 0.82 (7):0.18 (7)]. The Ti<sub>4</sub>Fe<sub>2</sub>C<sub>0.82</sub>O<sub>0.18</sub> phase is isotypic with Ti<sub>4</sub>Ni<sub>2</sub>C and Ti<sub>4</sub>Fe<sub>2</sub>O<sub>0.407</sub>, and is the first example where C and O atoms co-occupy the same site in filled Ti<sub>2</sub>Fe structures.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (272KB)</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 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11451028/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383170","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}