Determination of Crystallographic Planes for a Polyhedral Single Crystal

Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate

10.26434/chemrxiv.11345063.v2 ◽

2020 ◽

Author(s):

Keishiro Yamashita ◽

Kazuki Komatsu ◽

Hiroyuki Kagi

Keyword(s):

Crystal Structure ◽

High Pressure ◽

Crystal Growth ◽

Single Crystal ◽

Room Temperature ◽

Growth Technique ◽

Salt Hydrate ◽

X Ray

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl<sub>2</sub>·7H<sub>2</sub>O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.

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An Accurate Method for the Determination of Complex Coefficients of Single Crystal Piezoelectric Resonators II: Design of Measurement and Experiments

IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control ◽

10.1109/tuffc.2004.1295399 ◽

2004 ◽

Vol 51 (2) ◽

pp. 238-248

Author(s):

Xiao-Hong Du ◽

Qing-Ming Wang ◽

a.K. Uchino

Keyword(s):

Single Crystal ◽

Accurate Method ◽

Piezoelectric Resonators ◽

Complex Coefficients

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Two lithium tricyanomethanide compounds: syntheses and single-crystal structure determination of LiK[C(CN)3]2 and Li[C(CN)3]·½ (H3C)2CO

Zeitschrift für Naturforschung B ◽

10.1515/znb-2014-0250 ◽

2015 ◽

Vol 70 (3) ◽

pp. 191-196 ◽

Cited By ~ 1

Author(s):

Olaf Reckeweg ◽

Francis J. DiSalvo

Keyword(s):

Crystal Structure ◽

Single Crystal ◽

Single Crystals ◽

Structure Determination ◽

Monoclinic Space Group ◽

Orthorhombic Space Group ◽

Space Group ◽

Cell Parameters ◽

New Compounds

AbstractThe new compounds LiK[C(CN)3]2 and Li[C(CN)3]·½ (H3C)2CO were synthesized and their crystal structures were determined. Li[C(CN)3]·½ (H3C)2CO crystallizes in the orthorhombic space group Ima2 (no. 46) with the cell parameters a=794.97(14), b=1165.1(2) and c=1485.4(3) pm, while LiK[C(CN)3]2 adopts the monoclinic space group P21/c (no. 14) with the cell parameters a=1265.7(2), b=1068.0(2) and c=778.36(12) pm and the angle β=95.775(7)°. Single crystals of K[C(CN)3] were also acquired, and the crystal structure was refined more precisely than before corroborating earlier results.

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Wechselwirkungen in Molekülkristallen, 160 [1,2]. Kristallzüchtung und Strukturbestimmung der verschiedenartigen Polyphenyl-Kontaktionenmultipel [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2 / Interaction in Molecular Crystals, 160 [1, 2]. Crystallization and Structure Determination of the Different Polyphenyl Contact Ion Multiples [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2

Zeitschrift für Naturforschung B ◽

10.1515/znb-2000-1201 ◽

2000 ◽

Vol 55 (12) ◽

pp. 1103-1113 ◽

Cited By ~ 3

Author(s):

Hans Bock ◽

K. Gharagozloo-Hubmann ◽

M. Sievert

Keyword(s):

Crystal Structure ◽

Single Crystal ◽

Sodium Salt ◽

Structure Determination ◽

Metal Cation ◽

Molecular Crystals ◽

Sodium Salts ◽

Structure Determinations ◽

Cation Coordination

The π-hydrocarbons p-terphenyl and p-quaterphenyl are reduced to their dianions in aprotic solutions of different ethers at sodium metal mirrors. Single crystal structure determinations of the solvent-separated or solvens-shared contact ion multiples, [p-terphenyl⊖⊖ Na⊕(DME)2Na⊕DME]2, p-quaterphenyl⊖⊖ ][Na⊕(DME)3]2 and [p-quaterpheny⊖⊖( Na⊕(THF)3)2], prove the essential cation solvation by the chelating dimethoxyethane (DME) versus the bulky tetrahydrofuran (THF) ligands: The solution network of equilibria between solvent separated and solvent shared ion aggregates can be considerably and transparently modified by the ether solvent selected. In addition, the structures of the monomeric sodium salts reveal partly novel details of metal cation coordination by contacts Na⊕ ··· O as well as Na⊕ ··· Cπ such as in the dimeric sodium salt of p-terphenyl dianion, [(DME)2Na⊕ (terphenyl⊖⊖)(Na⊕ DME)(terphenyl⊖⊖)Na⊕ (DME)2].

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Synthesis of 4-(3-coumarinyl)-3-benzyl-4-thiazolin-2-one 4-methylbenzylidenehydrazone and determination of the isomeric structure by X-ray analysis

Zeitschrift für Kristallographie - Crystalline Materials ◽

10.1524/zkri.218.12.819.20549 ◽

2003 ◽

Vol 218 (12) ◽

Author(s):

Süheyla Özbey ◽

Nilgün Karalı ◽

Aysel Gürsoy

Keyword(s):

Single Crystal ◽

Diffraction Analysis ◽

Spectral Data ◽

X Ray Diffraction ◽

X Ray ◽

Isomeric Structure ◽

Elemental Analyses

AbstractIn this study 4-(3-coumarinyl)-3-benzyl-4-thi azolin-2-one 4-methylbenzylidenehydrazone 3 was synthesised. An independent proof of the thiazolylhydrazone structure of 3 was achieved by single crystal X-ray diffraction analysis. Elemental analyses and spectral data (IR,

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