Twin Orthorhombic Structure of Haüyne from Sakrofano (Italy)

N. B. Bolotina; R. K. Rastsvetaeva; A. N. Sapozhnikov; A. A. Kashaev

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Twin Orthorhombic Structure of Haüyne from Sakrofano (Italy)

机译：Sakrofano（意大利）的Haüyne的双正交结构

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The structure of hauyne from Sakrofano (Italy) is solved using the superstructure reflections, which double the unit cell parameters in three directions. The cubic symmetry of the diffraction pattern of hauyne results from the twinning of the equidimensional orthorhombic components by the [111] threefold axis. The structure is refined in the orthorhombic space group Pba2 with the unit cell parameters a = b = 12.872(7) A and c = 9.102(3) A in the anisotropic approximation to R = 0.043 for 1737 reflections. Compared to high-potassium hauyne from Arissia (Italy), the mineral studied contains potassium in smaller amounts and the distribution of K, Na, and Ca atoms over four body diagonals of the cell is ordered, which apparently causes the lowering of symmetry from cubic to orthorhombic.

机译：来自Sakrofano（意大利）的hauyne的结构是使用上层结构反射来求解的，该结构将单位晶胞参数在三个方向上加倍。 hauyne的衍射图样的立方对称性是由[111]三重轴对等维正交晶体成分的孪生产生的。在正交各向异性空间组Pba2中，通过单位近似参数a = b = 12.872（7）A和c = 9.102（3）A来精细化结构，各向异性近似为1737次反射，R = 0.043。与来自Arissia（意大利）的高钾hauyne相比，所研究的矿物含有少量的钾，并且该单元的四个对角线上的K，Na和Ca原子的分布是有序的，这显然导致立方晶的对称性降低到斜方。

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《Crystallography reports》 |2003年第6期|共5页
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N. B. Bolotina; R. K. Rastsvetaeva; A. N. Sapozhnikov; A. A. Kashaev;
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1. Twin Orthorhombic Structure of Haüyne from Sakrofano (Italy) [J] . N. B. Bolotina, R. K. Rastsvetaeva, A. N. Sapozhnikov, Crystallography reports . 2003,第6期

机译：Sakrofano（意大利）的Haüyne的双正交结构
2. Commensurate structure of Ca(2)CoSi(2)O(7), a new twinned orthorhombic structure. [J] . Hagiya K, Kusaka K, Ohmasa M, Acta Crystallographica, Section B. Structural Science . 2001,第3期

机译：Ca（2）CoSi（2）O（7），一种新的双斜方晶结构的相称结构。
3. Two ammonium tetrachlorido-aluminate salts: how a twinned orthorhombic structure emulates a trigonal crystal system [J] . Jan Tillmann, Hans-Wolfram Lerner Michael Bolte Acta crystallographica. Section C, Structural chemistry. . 2014,第12期

机译：两种四氯化铝铝酸盐：双晶正交结构如何模仿三角晶体系统
4. Fabrication process of twin-free orthorhombic Nd123 single crystal under uni-axial compression [C] . Akihiro Oka, Satoshi Koyama, Teruo Izumi, International symposium on superconductivity;ISS'98 . 1999

机译：单轴压缩下无孪晶正交Nd123单晶的制备工艺
5. Funny ha-ha or funny strange: The structure and meaning of laughter in conversation. [D] . Houts-Smith, Linda. 2006

机译：有趣的哈哈或有趣的奇怪：谈话中笑声的结构和含义。
6. Icosahedral and decagonal quasicrystals of intermetallic compounds are multiple twins of cubic or orthorhombic crystals composed of very large atomic complexes with icosahedral point-group symmetry in cubic close packing or body-centered packing: Structure of decagonal Al6Pd [O] . Linus Pauling 1989

机译：金属间化合物的二十面体和十面体准晶体是立方或正交晶体的多个孪晶由立方密堆积或体心堆积中具有二十面体点群对称的非常大的原子络合物组成：十方Al6Pd结构
7. Icosahedral and decagonal quasicrystals of intermetallic compounds are multiple twins of cubic or orthorhombic crystals composed of very large atomic complexes with icosahedral point-group symmetry in cubic close packing or body-centered packing: Structure of decagonal Al6Pd [O] . Pauling, Linus 1989

机译：金属间化合物的二十面体和十面体准晶体是立方或正交晶体的多个孪晶，由立方密堆积或体心堆积中具有二十面体点群对称的非常大的原子络合物组成：十方Al6Pd结构
8. Formation of Tetra-and Tri-nuclear Nickel Acetylene Complexes; Crystal and Molecular Structures of Tris-u3-(n-2-Hexafluorobut-2yne)-Tetrakis-(Carbonylnickel) and Orobut-2yne)-Tetrakis-(Carbonylnickel) and t-2-Yne)-Tetrakis-(Carbonylnickel) and Trakis-(Carbonylnickel) and El) and Tricarbonyl-u3-(n-Cyclo-Octatetraene)-u3-(n-2-Hexafluorobut-2-Yne)- Triangulo-Trinickel with Evidence for a Nickel-Stabilised Cyclo-Octatetraenyl Dication. [R] . Davidson, J. L., Green, M., Stone, F. G. A., 1978

机译：四核和三核镍乙炔配合物的形成; Tris-u3-（n-2-六氟丁-2-炔）-Tetrakis-（羰基镍）和Orobut-2yne）-Tetrakis-（羰基镍）和t-2-Yne）-Tetrakis-（羰基镍）和Trakis的晶体和分子结构 - （羰基镍）和E1）和三羰基-u3-（n-环 - 辛二烯）-u3-（n-2-六氟丁-2-炔） - 三羰基 - 三萜，具有镍稳定的环辛烯基四烯基二价的证据。

Twin Orthorhombic Structure of Haüyne from Sakrofano (Italy)

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