{"title":"1-硝基萘，一种非 OD、非MDO 聚类","authors":"Matthias Schöbinger, Berthold Stöger","doi":"10.1515/zkri-2024-0089","DOIUrl":null,"url":null,"abstract":"Crystals of 1-nitronaphthalene were grown by evaporation of a methanol solution. The structure [<jats:italic>P</jats:italic>2<jats:sub>1</jats:sub>/<jats:italic>c</jats:italic>, <jats:italic>a</jats:italic> = 13.2780(13) Å, <jats:italic>b</jats:italic> = 3.8131(3)° Å, <jats:italic>c</jats:italic> = 31.851(3) Å, <jats:italic>β</jats:italic> = 91.173(8), <jats:italic>V</jats:italic> = 1,612.3 Å<jats:sup>3</jats:sup>] was solved from a crystal twinned by twofold rotation about [100]. Twinning is explained by the polytype character: layers with (idealized) <jats:italic>p</jats:italic>2<jats:sub>1</jats:sub>11 symmetry can connect via either 1‾ or 2<jats:sub>1</jats:sub> operations, leading to geometrically distinct pairs of layers. In the twin individuals, the two kinds of contacts alternate, at the composition plane two subsequent contacts of the same type are realized.","PeriodicalId":23855,"journal":{"name":"Zeitschrift für Kristallographie - Crystalline Materials","volume":"69 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"1-Nitronaphthalene, a non-OD, non-MDO polytype\",\"authors\":\"Matthias Schöbinger, Berthold Stöger\",\"doi\":\"10.1515/zkri-2024-0089\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Crystals of 1-nitronaphthalene were grown by evaporation of a methanol solution. The structure [<jats:italic>P</jats:italic>2<jats:sub>1</jats:sub>/<jats:italic>c</jats:italic>, <jats:italic>a</jats:italic> = 13.2780(13) Å, <jats:italic>b</jats:italic> = 3.8131(3)° Å, <jats:italic>c</jats:italic> = 31.851(3) Å, <jats:italic>β</jats:italic> = 91.173(8), <jats:italic>V</jats:italic> = 1,612.3 Å<jats:sup>3</jats:sup>] was solved from a crystal twinned by twofold rotation about [100]. Twinning is explained by the polytype character: layers with (idealized) <jats:italic>p</jats:italic>2<jats:sub>1</jats:sub>11 symmetry can connect via either 1‾ or 2<jats:sub>1</jats:sub> operations, leading to geometrically distinct pairs of layers. In the twin individuals, the two kinds of contacts alternate, at the composition plane two subsequent contacts of the same type are realized.\",\"PeriodicalId\":23855,\"journal\":{\"name\":\"Zeitschrift für Kristallographie - Crystalline Materials\",\"volume\":\"69 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift für Kristallographie - Crystalline Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/zkri-2024-0089\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Kristallographie - Crystalline Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/zkri-2024-0089","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
1-nitronaphthalene 晶体是通过甲醇溶液的蒸发作用生长出来的。结构[P21/c, a = 13.2780(13) Å, b = 3.8131(3)° Å, c = 31.851(3) Å, β = 91.173(8), V = 1,612.3 Å3]是由围绕[100]旋转两圈的孪晶求解的。孪晶是由多型特征解释的：具有（理想化的）p2111 对称性的层可以通过 1‾ 或 21 次操作连接起来，从而形成几何上不同的层对。在孪生个体中，两种接触交替进行，在组成平面上实现了两个相同类型的后续接触。
Crystals of 1-nitronaphthalene were grown by evaporation of a methanol solution. The structure [P21/c, a = 13.2780(13) Å, b = 3.8131(3)° Å, c = 31.851(3) Å, β = 91.173(8), V = 1,612.3 Å3] was solved from a crystal twinned by twofold rotation about [100]. Twinning is explained by the polytype character: layers with (idealized) p2111 symmetry can connect via either 1‾ or 21 operations, leading to geometrically distinct pairs of layers. In the twin individuals, the two kinds of contacts alternate, at the composition plane two subsequent contacts of the same type are realized.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
