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Journal articles on the topic 'Crystal structure; REF 2014'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Bogdanov, S. P., M. M. Sychev, and L. A. Lebedev. "The Al₂O₃-3D-ceramics' structure changing when sintering." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 9 (December 29, 2018): 35–39. http://dx.doi.org/10.17073/1683-4518-2018-9-35-39.

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It was proposed to regard the ceramic products with periodic topology as the systems having the multilevel organized structures. The development of the structure was studied at diﬀerent scales levels after the sintering at 1700 °С for the corundum ceramics prepared by 3D-printing. The peculiarities of the geometry change were shown for the 3d-printed layered structure, for the material's grain structure and for the crystal lattice parameters of the α-Al2O3grains.Ill. 5. Ref.8.

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2

Zitzer, Sabine, Frank Schleifenbaum, and Thomas Schleid. "Na2Y3Cl3[TeO3]4: Synthesis, Crystal Structure and Spectroscopic Properties of the Bulk Material and its Luminescent Eu3+-doped Samples." Zeitschrift für Naturforschung B 69, no. 2 (2014): 150–58. http://dx.doi.org/10.5560/znb.2014-3274.

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Colorless, platelet-shaped single crystals of Na2Y3Cl3[TeO3]4 were synthesized by a reaction of Y2O3 and TeO2 (molar ratio 3 : 8) in evacuated silica ampoules within five days at 775 °C with an excess of NaCl added as flux and reagent. The new quintenary compound crystallizes in the monoclinic space group C2/c with the lattice parameters a = 2380:69(14), b = 552:76(3), c = 1662:48(9) pm, β = 134:045(3)° and Z = 4. The crystal structure presents one of the rare oxotellurates(IV) containing isolated [TeO3]2− units, which could be verified by Raman spectroscopy. Doping with Eu3+ (3 mass-%) at the

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3

Babahanova, Z. A., and M. N. Aripova. "Highly-refractory spinel-bonded aluminapericlase-carbonaceous ceramic materials." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 9 (December 29, 2018): 23–27. http://dx.doi.org/10.17073/1683-4518-2018-9-23-27.

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The slag-resistant highly-refractory alumina-periclase carbonaceous ceramic materials were synthesized out of the Kazogneupor's electro-cast corundum, Zinel'bulaksk's (Uzbekistan) talc, and enriched graphite concentrate (Uzbekistan). The crystal structure of the materials is formed of corundum and spinel. The refractoriness of the ceramic samples is higher than 1800 °C, the density is 2520‒2880 kg/m3, the water absorption is 6,75‒11.71 %, open porosity is 16‒21 %, and the ultimate compression strength is 100‒120 MPa.Ill. 3. Ref. 9. Tab. 2.

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4

Omari, Lhaj Hachemi, and Salaheddine Sayouri. "Conductivity and Complex Electrical Formalism of the Iron-Doped PbLaTiO3 Ferroelectric Relaxor." ISRN Materials Science 2013 (March 27, 2013): 1–11. http://dx.doi.org/10.1155/2013/231302.

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Polycrystalline perovskite nanomaterials (Pb0.88La0.12)(FexTi1-x)0.97O3 were prepared by sol-gel reaction method. The crystal structure examined by X-ray powder diffraction indicates that the material was single phase with pseudocubic structure. EDX and SEM studies were carried out in order to evaluate the quality and purity of the compounds. The crystal symmetry, space group, and unit cell dimensions were determined from Cell-Ref software, whereas crystallite size was estimated from Scherrer’s formula. A correlation between grain size and diffuse character for the samples has been observed. D

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5

Guo, Dan, Xiaodong Zhang, and Jiangni Yun. "Preparation of Compensation Ions Codoped SrTiO3:Pr3+ Red Phosphor with the Sol-Gel Method and Study of Its Luminescence Enhancement Mechanism." Advances in OptoElectronics 2014 (December 14, 2014): 1–9. http://dx.doi.org/10.1155/2014/674780.

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SrTiO3:Pr3+ is the most representative titanate matrix red phosphor for field emission display (FED). The red luminous efficiency of SrTiO3:Pr3+ will be greatly improved after the compensation ions codoping, so SrTiO3:Pr3+ red phosphor has been a research focus at home and abroad. SrTiO3:Pr3+, SrTiO3:Pr3+, Mg2+, and SrTiO3:Pr3+, Al3+ phosphors are synthesized by a new sol-gel method. Crystal structure, spectral characteristics, and luminescence enhancement mechanism of the sample were studied by XRD and PL spectra. The results showed that after co-doped, SrTiO3:Pr3+ phosphor is single SrTiO3 c

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6

Katerinopoulou, A., T. Balic Zunic, J. Kolb, and A. Berger. "Manganiferous minerals of the epidote group from the Archaean basement of West Greenland." Bulletin of the Geological Society of Denmark 62 (October 6, 2014): 27–32. http://dx.doi.org/10.37570/bgsd-2014-62-03.

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The chemical compositions and crystal structures of Mn3+-containing minerals from the epidote group in Greenland rocks are investigated and described in detail. They occur in hydrothermally altered Archaean mafic sequences within the gneissic complex of the North Atlantic craton of West Greenland. The Mn-containing minerals have a characteristic red to pink colour. A detailed microchemical study shows a significant inter- and intra-sample variation in Mn content. The samples from different parageneses can be classified as Mn-bearing epidote and Mn-bearing clinozoisite. The intra-sample variati

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7

El-mehdawi, Ramadan M., Abdussalam N. EL-dewik, Mufida M. Ben-Younes, et al. "Synthesis, Characterization, and Crystal Structure of [Co4(CH3CO2)2L4]2[BPh4]4·0.5H2O, Where HL = 4-(Salicylaldiminato)antipyrine." Journal of Crystallography 2014 (August 27, 2014): 1–6. http://dx.doi.org/10.1155/2014/481572.

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The title complex was isolated as a red solid from the reaction of 4-(salicylaldiminato)antipyrine, HL, and cobalt (II) acetate in ethanol. The complex has been characterized by elemental analysis, FTIR, UV-Vis, and X-ray single crystal diffraction. Two crystallographically different cationic units, A and B, of the title complex are found. Both units are essentially isostructural; nevertheless, small differences exist between them. Both units contain four cobalt atoms arranged at the corners of distorted cubane-like core alternatively with phenoxy oxygen of the Schiff base. In both cases, one

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8

Reckeweg, Olaf, Armin Schulz, and Francis J. DiSalvo. "Syntheses, single-crystal structure determination, and Raman spectra of Rb[C(CN)3] and Cs[C(CN)3]." Zeitschrift für Naturforschung B 70, no. 2 (2015): 151–54. http://dx.doi.org/10.1515/znb-2014-0241.

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AbstractExtracting residues of an aqueous solutions containing equimolar amounts of K[C(CN)3] and RbF or CsF, respectively, with absolute ethanol, yields triangular, transparent colorless crystals of Rb[C(CN)3] and Cs[C(CN)3] after the ethanol was allowed to evaporate. The compounds are isotypic and crystallize isopointal to calcite in space group R3̅c (no. 167) with the cell parameters a=809.9(1) and c=1461.3(3) pm and a=843.29(9) and c=1459.9(2) pm, respectively. Single crystals were used to record the Raman spectra of the title compounds.

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9

Block, Theresa, Michael Johnscher, Stefan Linsinger, Ute Ch. Rodewald, and Rainer Pöttgen. "Ternary aurides RE4Mg3Au10 (RE=Y, Nd, Sm, Gd–Dy) and their silver analogues." Zeitschrift für Naturforschung B 70, no. 2 (2015): 135–41. http://dx.doi.org/10.1515/znb-2014-0225.

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AbstractThe ternary aurides RE4Mg3Au10 (RE=Y, Nd, Sm, Gd–Dy) and their silver analogues were synthesized by induction melting of the elements in sealed niobium tubes. These intermetallic phases were characterized by powder X-ray diffraction. They crystallize with the Ca4In3Au10-type structure, which, from a geometrical point of view, is a ternary ordered version of Zr7Ni10 with the rare earth and magnesium atoms ordering on the four crystallographically independent zirconium sites. The structures of crystals from three differently prepared gadolinium samples were refined from single-crystal X-

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10

Vidya, Y. S., and B. N. Lakshminarasappa. "Influence of Rare Earth Doping on Microstructure and Luminescence Behaviour of Sodium Sulphate." Indian Journal of Materials Science 2014 (January 6, 2014): 1–8. http://dx.doi.org/10.1155/2014/675417.

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Na2SO4, Na2SO4: Li, and Na2SO4: Li, Eu, Dy phosphors were prepared by using slow evaporation technique followed by subsequent calcination at 400°C for 4 h. Doping with Li+ ion stabilized the thenardite phase of host matrix, while codoping with RE3+ stabilized the phase transformation from stable thenardite to metastable mirabilite crystal structure. The microstructure and morphology were studied by using scanning electron microscopy and transmission electron microscopy. The thermoluminescence studies revealed that isovalent doping of Li+ served as a quencher and addition of codopant introduces

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11

Meille, Stefano V., Giuseppe Allegra, Phillip H. Geil, et al. "Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)." Pure and Applied Chemistry 83, no. 10 (2011): 1831–71. http://dx.doi.org/10.1351/pac-rec-10-11-13.

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Recommendations are given concerning the terminology relating to the structure and the morphology of crystalline polymers and the processes of polymer crystallization. They are applicable to cases where polymer crystals are a significant fraction of a system and primarily with crystal structures that are comprised of polymer chains with limited, static, or dynamic disorder. After some general definitions, terms pertaining to structural arrangements at subnanometric scales and to polymer crystal structures are defined. Terms relating to molecular conformation within polymer crystals, morphologi

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12

Shanmuganathan, G., and I. B. Shameem Banu. "Influence of Codoping on the Optical Properties of ZnO Thin Films Synthesized on Glass Substrate by Chemical Bath Deposition Method." Advances in Condensed Matter Physics 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/761960.

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Fe and K simultaneously doped ZnO thin films Zn0.99K0.01(Fe)xO (x=1, 2, 3, and 4%) were synthesized by chemical bath deposition method. The XRD investigation reveals that all the doped ZnO thin films are in hexagonal wurtzite crystal structure without impurity phases. With increase in Fe concentration, the growth of thin films alongcaxis is evident from the XRD which indicates the increase in intensity along (002) direction. The same is visible from the surface morphology which shows the formation of hexagonal structure for higher Fe concentration. The topography shows gradual variation with F

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13

Singh, A. K., and Umesh T. Nakate. "TiO2 Microwave Synthesis, Electrophoretic Deposition of Thin Film, and Photocatalytic Properties for Methylene Blue and Methyl Red Dyes." ISRN Nanotechnology 2014 (April 7, 2014): 1–8. http://dx.doi.org/10.1155/2014/326747.

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Electrophoretic deposition (EPD) of TiO2 thin film was carried out at room temperature on low cost steel substrate using microwave synthesized nanoparticles (NPs) of TiO2. Synthesized NPs and EPD thin film were characterized at different stages of synthesis for its crystal structure, morphology, elemental analysis, and surface area. Spherical particle morphology and formation of TiO2 were confirmed by scanning electron micrograph (SEM), energy dispersive spectrometer (EDS), and X-ray diffraction (XRD). Synthesized NPs were formed in anatase phase having crystallite size of about 12.3 nm from S

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14

Constable, Edwin C., Catherine E. Housecroft, Markéta Šmídková, and Jennifer A. Zampese. "Phosphonate-functionalized heteroleptic ruthenium(II) bis(2,2′:6′,2″-terpyridine) complexes." Canadian Journal of Chemistry 92, no. 8 (2014): 724–30. http://dx.doi.org/10.1139/cjc-2014-0065.

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The heteroleptic complexes [Ru(1)(4)][PF6]2, [Ru(2)(4)][PF6]2, [Ru(Phtpy)(4)][PF6]2, and [Ru(pytpy)(4)][PF6]2 (Phtpy = 4′-phenyl-2,2′:6′,2″-terpyridine, pytpy = 4′-(4-pyridyl)-2,2′:6′,2″-terpyridine, 1 and 2 = 4-methyl ester substituted derivatives of Phtpy and pytpy, 4 = ethyl 2,2′:6′,2″-terpyridine-4′-phosphonate) have been prepared. The single crystal structure of ligand 1 (1 = methyl 4-carboxy-4′-phenyl-2,2′:6′,2″-terpyridine) is reported. The introduction of the 4-methyl ester group causes a small red shift in the MLCT band of the ruthenium(II) complexes and a small shift to a more positi

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15

Johnscher, Michael, Theresa Block, Oliver Niehaus, and Rainer Pöttgen. "Ternary aurides RE4Mg3Au10 (RE = La, Ce, Pr) and RE4Cd3Au10 (RE = Y, La–Nd, Sm, Gd–Dy) – ordering variants of the Zr7Ni10 type." Zeitschrift für Naturforschung B 70, no. 12 (2015): 889–96. http://dx.doi.org/10.1515/znb-2015-0117.

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AbstractThe intermetallic gold compounds RE4Mg3Au10 (RE = La, Ce, Pr) and RE4Cd3Au10 (RE = Y, La–Nd, Sm, Gd–Dy) were obtained from the elements through high-frequency melting in sealed niobium tubes and subsequent annealing in a muffle furnace. The new aurides crystallize with the Ca4In3Au10-type structure. They were characterized through Guinier powder patterns. The structures of Pr4.46Cd2.54Au10 and Tb4.38Cd2.62Au10 were refined from single crystal X-ray diffractometer data: Cmce, a = 1396.73(6), b = 1009.38(3), c = 1019.51(3) pm, wR2 = 0.0423, 1281 F2 values, 47 variables for Pr4.46Cd2.54Au

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16

Bindi, L., F. Nestola, S. Graeser, P. Tropper, and T. Raber. "Eckerite, Ag2CuAsS3, a new Cu-bearing sulfosalt from Lengenbach quarry, Binn valley, Switzerland: description and crystal structure." Mineralogical Magazine 79, no. 3 (2015): 687–94. http://dx.doi.org/10.1180/minmag.2015.079.3.13.

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AbstractEckerite, ideally Ag2CuAsS3, is a new mineral from the Lengenbach quarry in the Binn Valley, Valais, Switzerland. It occurs as very rare euhedral crystals up to 300 μm across associated with realgar, sinnerite, hatchite, trechmannite and yellow, fibrous smithite. In thick section eckerite is opaque with a metallic lustre and shows a dark orange-red streak. It is brittle; the Vickers hardness (VHN25) is 70 kg/mm2 (range: 64–78) (Mohs hardness of ∼2½–3). In reflected light, eckerite is moderately bireflectant and weakly pleochroic from light grey to a slightly bluish grey. Internal refle

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17

Seidel, Stefan, Ute Ch Rodewald, Oliver Janka, and Rainer Pöttgen. "Ternary gallides RE4Rh9Ga5, RE5Rh12Ga7 and RE7Rh18Ga11 (RE=Y, La–Nd, Sm, Gd, Tb) – intergrowth structures with MgCu2 and CaCu5 related slabs." Zeitschrift für Kristallographie - Crystalline Materials 232, no. 5 (2017): 365–74. http://dx.doi.org/10.1515/zkri-2016-2017.

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AbstractFourteen ternary gallides RE4Rh9Ga5, RE5Rh12Ga7 and RE7Rh18Ga11 (RE=Y, La–Nd, Sm, Gd, Tb) were synthesized from the elements by arc-melting, followed by different annealing sequences either in muffle or induction furnaces. The samples were characterized through Guinier powder patterns and the crystal structures of Ce4Rh9Ga5, Ce5Rh12Ga7, Ce7Rh18Ga11, Nd5Rh10.44(4)Ga8.56(4), Nd4Rh9Ga5 and Gd4Rh9Ga5 were refined from single crystal X-ray diffractometer data. The new gallides are the n=2, 3 and 5 members of the RE2+n Rh3+3n Ga1+2n structure series in the Parthé intergrowth concept. The sla

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18

Yahia, Hamdi Ben, Ute Ch Rodewald, Birgit Heying, Sarkarainadar Balamurugan, and Rainer Pöttgen. "The Solid Solution Lu2–xScxSiO5." Zeitschrift für Naturforschung B 66, no. 11 (2011): 1183–87. http://dx.doi.org/10.1515/znb-2011-1115.

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The monoclinic silicates Lu2SiO5 and Sc2SiO5 (Y2SiO5 type, space groupC2/c) forma solid solution Lu2−xScxSiO5. Samples with x = 0.5, 0.8, 1.0 were synthesized ceramically from Lu2O3, Sc2O3, and SiO2. The structures of three crystals with x = 0.88, 0.77, and 0.50 were refined on the basis of single-crystal X-ray diffraction data. The rare earth (RE) atoms occupy two crystallographically different 8ƒ sites with oxygen coordination numbers (CN) of 6 (RE2) and 7 (RE1). Refinements of the occupancy parameters showed Lu/Sc mixing for both sites with a strong preference of the smaller scandium atoms

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19

Rodewald, Ute Ch, Birgit Heying, Dirk Johrendt, Rolf-Dieter Hoffmann, and Rainer Pöttgen. "Ternary Rare Earth Metal Silicides RE2RE’3Si4 with Orthorhombic Sm5Ge4 or Tetragonal Zr5Si4 Type Structure." Zeitschrift für Naturforschung B 59, no. 2 (2004): 174–81. http://dx.doi.org/10.1515/znb-2004-0209.

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Ternary silicides RE2RE′3 Si4 (RE = La, Ce; RE′= Y, Lu) were synthesized by arc-melting of the elements. Single crystals were grown by annealing the arc-molten buttons slightly below the melting points in water-cooled silica tubes in an induction furnace. Five silicides RE2RE3′Si4 were investigated by X-ray powder and single crystal diffraction: Zr5Si4 type, P41212, a = 779.4(3), c = 1441.3(9) pm, wR2 = 0.072, 1806 F2 values, 45 variables for La1.72(4)Y3.28(4)Si4, P43212, a = 769.92(7), c = 1412.3(1) pm, wR2 = 0.079, 1846 F2 values, 45 variables, BASF = 0.36(4) for La1.72(2)Lu3.28(2)Si4, P4121

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20

Onodera, Toshiyuki, Koei Baba, and Keitaro Hitomi. "Evaluation of Antimony Tri-Iodide Crystals for Radiation Detectors." Science and Technology of Nuclear Installations 2018 (December 5, 2018): 1–7. http://dx.doi.org/10.1155/2018/1532742.

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This study was carried out to examine the potential of antimony tri-iodide (SbI3) as a material for radiation detectors that operate at room temperature. SbI3 is a compound semiconductor with an AsI3-type crystal structure, high atomic number (Sb: 51, I: 53), high density (4.92 g/cm3), and a wide band-gap energy (2.2 eV). In addition, crystalline SbI3 is easy to grow by conventional crystal growth techniques from melting phase because the material exhibits a low melting point (171°C) and undergoes no phase transition in the range of its solid phase. In this study, SbI3 crystals were grown by t

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21

Szczepanek, Jan, Tomasz M. Kardas, and Yuriy Stepanenko. "Group Delay measurements of ultrabroadband pulses generated in highly nonlinear fibers." Photonics Letters of Poland 8, no. 4 (2016): 107. http://dx.doi.org/10.4302/plp.2016.4.06.

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Ultra broadband supercontinuum pulses are commonly used as a source of different wavelengths from a wide spectral bandwidth or as a source of very short pulses. However the processes responsible for wide spectral broadening are still under investigation. In this paper we examine the temporal and spectral characteristics of the pulses broadened upon propagation in the highly nonlinear photonics crystal fibers with different dispersion profiles. Generated supercontinuum pulses were experimentally characterized using cross-correlation frequency resolved optical gating technique. Full Text: PDF Re

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22

Bartsch, Timo, Rolf-Dieter Hoffmann, and Rainer Pöttgen. "The quaternary arsenide oxides Ce9Au5–xAs8O6 and Pr9Au5–xAs8O6." Zeitschrift für Naturforschung B 71, no. 12 (2016): 1245–52. http://dx.doi.org/10.1515/znb-2016-0160.

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AbstractThe quaternary gold arsenide oxides Ce9Au5−xAs8O6 and Pr9Au5−xAs8O6 were synthesized from the rare earth elements (RE), rare earth oxides, arsenic and gold powder at maximum annealing temperatures of 1173 K. The structures were refined from single crystal X-ray diffractometer data: Pnnm, a=1321.64(6) pm, b=4073.0(3), c=423.96(2), wR2=0.0842, 3106 F2 values, 160 variables for Ce9Au4.91(4)As8O6 and Pnnm, a=1315.01(4), b=4052.87(8), c=420.68(1) pm, wR2=0.0865, 5313 F2 values, 160 variables for Pr9Au4.75(1)As8O6. They represent a new structure type and show a further extension of pnictide

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23

Missen, Owen P., Stuart J. Mills, John Spratt, William D. Birch, and Joël Brugger. "Crystal chemistry of zemannite-type structures: I. A re-examination of zemannite from Moctezuma, Mexico." European Journal of Mineralogy 31, no. 3 (2019): 519–27. http://dx.doi.org/10.1127/ejm/2019/0031-2806.

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24

Muller, Kina, Eric C. Hosten, and Richard Betz. "The crystal structure of methacholine chloride, C8H18ClNO2." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 2 (2021): 335–37. http://dx.doi.org/10.1515/ncrs-2020-0526.

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25

Zheng, Yue, Chen Lizhen, Chao Hui, Wei Chenglong, Li Zhihua, and Cao Duanlin. "The crystal structure of dipentaerthritol hexanitrate, C10H16N6O19." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 1 (2021): 55–56. http://dx.doi.org/10.1515/ncrs-2020-0443.

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Abstract${\text{C}}_{10}{\text{H}}_{16}{\text{N}}_{6}{\text{O}}_{19}$, monoclinic, C2/c (no. 15), a = 29.980(5) Å, b = 8.4695(17) Å, c = 20.719(4) Å, β = 128.124(7)°, V = 4138.7(16) Å3, Z = 8, ${R}_{gt}$(F) = 0.0587, $w{R}_{ref}$(F2) = 0.1683, T = 170 K.

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26

Manana, Pholani, Eric C. Hosten, and Richard Betz. "The crystal structure of 4-bromobenzyl chloride, C7H6BrCl." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 5 (2021): 1083–85. http://dx.doi.org/10.1515/ncrs-2021-0227.

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27

Hosten, Eric C., and Richard Betz. "The crystal structure of diaquahydrogen 2,5-dimethylbenzenesulphonate, C8H14O5S." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 3 (2021): 511–13. http://dx.doi.org/10.1515/ncrs-2020-0595.

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28

Zeng, Li, Gui-Yun Tang, Yu-Cai Wang, and Chun-Yan Liu. "Crystal structure of cyclopropane-1,2,3-triyltris(phenylmethanone), C24H18O3." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 4 (2021): 877–78. http://dx.doi.org/10.1515/ncrs-2021-0126.

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29

Rahman, Md Saifur, Jagodish C. Sarker, Shariff E. Kabir, and Tasneem A. Siddiquee. "Reactivity of [M4(co)12(µ-pyms)4] (M = Mn, re; pymS = pyrimidine-2-Thiolate) with bis(triphenylphosphino)nickel(ii) dicarbonyl: X-ray crystal structure of [Re(Co)3(?2-pymS)(PPh3)]." Journal of Bangladesh Academy of Sciences 38, no. 2 (2014): 155–65. http://dx.doi.org/10.3329/jbas.v38i2.21340.

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The reaction between the tetranuclear compound [Mn4(CO)12(µ -pymS)4] (1) and (PPh3)2Ni(CO)2 at room temperature resulted in the cleavage of the square to afford the dinuclear complex [Mn2(CO)5(µ -pymS)2(PPh3)] (2) (19%) along with two mononuclear complexes fac- [Mn(CO)3(?2-pymS)(PPh3)] (3) (43%) and [Mn(CO)2(?2-pymS)(PPh3)2] (4) (24%). In contrast, a similar reaction of [Re4(CO)12(µ-pymS)4] (5) with (PPh3)2Ni(CO)2 at 25oC did not afford any dinuclear compound leading instead to the monophosphine substituted mononuclear compound fac- [Re(CO)3(?2-pymS)(PPh3)] (6) (72%). Compound 4 is also formed

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30

Manana, Pholani, Jarryd Cuthbertson, Eric C. Hosten, and Richard Betz. "The crystal structure of 2,6-difluorophenol, C6H4F2O." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 1 (2021): 177–78. http://dx.doi.org/10.1515/ncrs-2020-0432.

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Abstract${\text{C}}_{6}{\text{H}}_{4}{\text{F}}_{2}\text{O}$, orthorhombic, $P{2}_{1}{2}_{1}{2}_{1}$ (no. 19), a = 4.9287(5) Å, b = 10.1752(8) Å, c = 10.9156(10) Å, V = 547.42(9) Å3, Z = 4, ${R}_{gt}$(F) = 0.0248, $w{R}_{\text{ref}}$(${F}^{2}$) = 0.0705, T = 200 K.CCDC no.: 2025946

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31

Prakash, Jai, Adel Mesbah, Jessica Beard, et al. "Two new ternary chalcogenides Ba2ZnQ3 (Q = Se, Te) with chains of ZnQ4 tetrahedra: syntheses, crystal structure, and optical and electronic properties." Zeitschrift für Naturforschung B 71, no. 5 (2016): 425–29. http://dx.doi.org/10.1515/znb-2015-0226.

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AbstractSingle crystals of Ba2ZnQ3 (Q = Se, Te) were obtained by solid-state reactions at 1173 K. These isostructural compounds crystallize in the K2AgI3 structure type. The Zn atoms in this structure are coordinated to four Q atoms (2 Q1, 1 Q2, 1 Q3) and these form a distorted tetrahedron around each Zn atom. Each ZnQ4 tetrahedron shares two corners with neighboring ZnQ4 tetrahedra resulting in the formation of infinite chains of [ZnQ44−] units. The absorption spectrum of a single crystal of Ba2ZnTe3 shows an absorption edge at 2.10(2) eV, consistent with the dark-red color of the crystals. F

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32

Folchnandt, Matthias, Daniel Rudolph, Jean-Louis Hoslauer, and Thomas Schleid. "The rare earth metal hydride tellurides REHTe (RE=Y, La–Nd, Gd–Er)." Zeitschrift für Naturforschung B 74, no. 6 (2019): 513–18. http://dx.doi.org/10.1515/znb-2019-0060.

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AbstractThe synthesis and crystal structure of a series of rare earth metal hydride tellurides with the composition REHTe (RE = Y, La–Nd, Gd–Er) is reported. These compounds have been obtained by the reaction of rare earth metal dihydrides (REH2) with elemental tellurium in sealed tantalum capsules at T = 700°C using cesium chloride (CsCl) as fluxing agent, which can be washed away with water due to the astonishing insensitivity of these hydride tellurides (REHTe) against hydrolysis. All of the compounds crystallize in the hexagonal space group P6̅m2 with a filled WC-type crystal structure, ex

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33

Hosten, Eric C., and Richard Betz. "The crystal structure of benzeneseleninic acid anhydride, C12H10O3Se2." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 2 (2021): 435–37. http://dx.doi.org/10.1515/ncrs-2020-0560.

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Abstract C12H10O3Se2, triclinic, P 1 ‾ $&#x203e;{1}$ (no. 2), a = 9.1794(3) Å, b = 11.5706(5) Å, c = 12.3976(5) Å, α = 85.291(2)°, β = 72.198(2)°, γ = 74.084(2)°, V = 1205.65(8) Å3, Z = 4, R gt (F) = 0.0275, wR ref (F 2) = 0.0698, T = 200 K.

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34

Chen, An-Ping, Jian-Jun Yang, Da-Lai Zhong, Yong-Hong SHI, and Jing-Bo Liu. "Epidote spherulites and radial euhedral epidote aggregates in a greenschist facies metavolcanic breccia hosting an UHP eclogite in Dabieshan (China): Implication for dynamic metamorphism." American Mineralogist 104, no. 8 (2019): 1197–212. http://dx.doi.org/10.2138/am-2019-6980.

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AbstractEpidote spherulites are identified in a greenschist facies metavolcanic breccia enclosing a body of coesite-bearing eclogite at Ganghe in the Dabie ultrahigh-pressure metamorphic belt, east-central China. The epidote spherulites are formed by fibrous, radially arranged, and rare earth element (REE)-rich epidote crystals (ΣREE = 0.13–0.36 (or slightly higher) cations per formula unit, cpfu) and interfibrillar REE-poor epidote (ΣREE ≤ 0.10 cpfu). Some of the epidote spherulites are overgrown by radially arranged euhedral epidote crystals, which also form aggregates around preexisting qua

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35

Hosten, Eric C., and Richard Betz. "The crystal structure of para-trifluoromethyl-aniline hemihydrate, C14H14F6N2O." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 2 (2021): 329–31. http://dx.doi.org/10.1515/ncrs-2020-0512.

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36

Imamaliyeva, Samira Zakir. "New Thallium Tellurides with Rare Earth Elements." Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 22, no. 4 (2020): 460–65. http://dx.doi.org/10.17308/kcmf.2020.22/3117.

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Compounds of the Tl4LnTe3 (Ln-Nd, Sm, Tb, Er, Tm) composition were synthesized by the direct interaction of stoichiometric amounts of thallium telluride Tl2Te elementary rare earth elements (REE) and tellurium in evacuated (10-2 Pa) quartz ampoules. The samples obtained were identified by differential thermal and X-ray phase analyses. Based on the data from the heating thermograms, it was shown that these compounds melt with decomposition by peritectic reactions. Analysis of powder diffraction patterns showed that they were completely indexed in a tetragonal lattice of the Tl5Te3 type (space g

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37

Brandt, Niklas, and Guido J. Reiss. "The twinned crystal structure of 1,3-phenylenedimethanaminium dibromide, C8H14Br2N2." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 3 (2021): 519–21. http://dx.doi.org/10.1515/ncrs-2020-0618.

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38

Hou, Yimin, Zhongyun Zhang, and Xin Zhu. "Crystal structure of bis(amino(thioureido)methaniminium) terephthalate, C12H18N8O4S2." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 4 (2021): 879–80. http://dx.doi.org/10.1515/ncrs-2021-0107.

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39

Hosten, Eric C., and Richard Betz. "The crystal structure of 3,4-dichlorobenzoic acid chloride, C7H3Cl3O." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 3 (2021): 531–32. http://dx.doi.org/10.1515/ncrs-2020-0561.

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40

Hosten, Eric C., та Richard Betz. "The crystal structure of 2-methyl-β-naphthothiazole, C12H9NS". Zeitschrift für Kristallographie - New Crystal Structures 236, № 2 (2021): 483–85. http://dx.doi.org/10.1515/ncrs-2020-0563.

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41

Manana, Pholani, Eric C. Hosten, and Richard Betz. "The crystal structure of di-tert-butyl dicarbonate, C10H18O5." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 5 (2021): 1087–89. http://dx.doi.org/10.1515/ncrs-2021-0228.

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42

Xie, Yu-Feng, Ai-Quan Jia, Hang Zhu, Hua-Tian Shi, and Qian-Feng Zhang. "A tetranuclear ruthenium complex with bridging pyridine-2,4-dicarboxylato ligands forming a square metallamacrocycle." Zeitschrift für Naturforschung B 71, no. 2 (2016): 119–23. http://dx.doi.org/10.1515/znb-2015-0158.

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AbstractTreatment of [RuCl2(PPh3)3] with equimolar amounts of 2,4-pyridinedicarboxylic acid (2,4-dipicH2) in the presence of Et3N afforded a tetranuclear complex [Ru(μ-2,4-dipic)(PPh3)2]4 (1) as red crystals. The crystal and molecular structure of [Ru(μ-2,4-dipic)(PPh3)2]4·CHCl3·8H2O (1·CHCl3·8H2O) was determined by single-crystal X-ray diffraction. Each ruthenium center in 1 is six-coordinated with two phosphorus atoms from triphenylphosphine ligands, one nitrogen atom from a pyridyl moiety and three oxygen atoms from two 2,4-dipic2– ligands. 2,4-Pyridinedicarboxylate dianions (2,4-dipic2–) a

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43

Manana, Pholani, Eric C. Hosten та Richard Betz. "Crystal structure of DL-α-(methylaminomethyl)benzyl alcohol, C9H13NO". Zeitschrift für Kristallographie - New Crystal Structures 236, № 1 (2021): 51–53. http://dx.doi.org/10.1515/ncrs-2020-0433.

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Abstract${\text{C}}_{9}{\text{H}}_{13}\text{NO}$, orthorhombic, Pbcn (no. 60), a = 29.554(4) Å, b = 7.4930(11) Å, c = 8.2800(10) Å, V = 1833.6(4) Å3, Z = 8, ${R}_{gt}$(F) = 0.0737, $w{R}_{ref}$(${F}^{2}$) = 0.1646, T = 200 K.

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44

Brauner, Tobias, Christoph Wagner, and Kurt Merzweiler. "The crystal structure of Hexakis(diethylamido)dimolybdenum, Mo2(NEt2)6." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 4 (2021): 887–89. http://dx.doi.org/10.1515/ncrs-2021-0138.

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45

Chong, Yan Yi, Wun Fui Mark-Lee, Mohamed Ibrahim Mohamed Tahir, and Mohammad B. Kassim. "Crystal structure of ethyl-2-(3-benzoylthioureido)propanoate, C13H16N2O3S." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 3 (2021): 591–93. http://dx.doi.org/10.1515/ncrs-2020-0623.

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Abstract C13H16N2O3S, triclinic, P 1 ‾ $P\bar{1}$ (no. 2), a = 8.1998(4) Å, b = 9.1320(4) Å, c = 10.7062(6) Å, α = 106.183(5)°, β = 111.506(5)°, γ = 97.589(4)°, V = 691.27(7) Å3, Z = 2, R gt(F) = 0.0346, wR ref(F 2) = 0.0957, T = 293(2) K.

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46

Dietrich, Volker, Dragan Pitzschke, and Martin Jansen. "Synthesis and Crystal Structure of AgTl3(Cr2O7)2." Zeitschrift für Naturforschung B 65, no. 11 (2010): 1301–4. http://dx.doi.org/10.1515/znb-2010-1102.

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Red single crystals of AgTl3(Cr2O7)2 were prepared via high oxygen pressure synthesis as well as by hydrothermal autoclave techniques. Initially, AgTl3(Cr2O7)2 was obtained from a reaction of stoichiometric mixtures of Ag2O, Cr and TlNO3 under elevated oxygen pressures. Following an optimized approach, the title compound can be synthesized at mild hydrothermal conditions, starting from AgNO3, TlNO3 and K2Cr2O7 in aqueous solution. AgTl3(Cr2O7)2 crystallizes in space group C2/c (no. 15) with a = 10.3638(3), b = 10.4817(3), c = 13.4717(4) Å , β = 106.55(1)°, V = 1402.80(5) Å3, and Z = 4. The str

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47

Bartsch, Timo, Christopher Benndorf, Hellmut Eckert, Matthias Eul, and Rainer Pöttgen. "La3Cu4P4O2 and La5Cu4P4O4Cl2: synthesis, structure and 31P solid state NMR spectroscopy." Zeitschrift für Naturforschung B 71, no. 2 (2016): 149–55. http://dx.doi.org/10.1515/znb-2015-0181.

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AbstractThe phosphide oxides La3Cu4P4O2 and La5Cu4 P4O4Cl2 were synthesized from lanthanum, copper(I) oxide, red phosphorus, and lanthanum(III) chloride through a ceramic technique. Single crystals can be grown in a NaCl/KCl flux. Both structures were refined from single crystal X-ray diffractometer data: I4/mmm, a = 403.89(4), c = 2681.7(3) pm, wR2 = 0.0660, 269 F2 values, 19 variables for La3Cu4P4O2 and a = 407.52(5), c = 4056.8(7) pm, wR2 = 0.0905, 426 F2 values, 27 variables for La5Cu4P4O4Cl2. Refinement of the occupancy parameters revealed full occupancy for the oxygen sites in both compo

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48

Lan, C. W., Y. M. Yang, A. Yu, et al. "Recent Progress of Crystal Growth Technology for Multi-Crystalline Silicon Solar Ingot." Solid State Phenomena 242 (October 2015): 21–29. http://dx.doi.org/10.4028/www.scientific.net/ssp.242.21.

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In recent years, silicon solar cells continue to remain the main stream in photovoltaic (PV) industry, particularly of made from multi-crystalline silicon (mc-Si). The progress of crystal growth technology for mc-Si ingot using directional solidification (DS) is particularly significant. With the breakthrough of the so-called high-performance (HP) mc-Si technology in 2011, the mc-Si solar cell efficiency had increased from 16.6% in 2011 to 18 % or beyond in 2013. Nowadays, HP mc-Si, solar cells from a normal screen-printing aluminum back surface field (Al-BSF) production line could easily reac

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49

Frisch, Gero, and Caroline Röhr. "A5Fe3O6] (A = Rb, Cs), Cs[FeO2] und Cs8[Fe2O7]: Neue Oxoferrate der schweren Alkalimetalle / A5Fe3O6] (A = Rb, Cs), Cs[FeO2] and Cs8[Fe2O7]: New Oxoferrates of the Heavy Alkaline Metals." Zeitschrift für Naturforschung B 59, no. 7 (2004): 771–81. http://dx.doi.org/10.1515/znb-2004-0705.

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The title compounds were synthesized at a temperature of 775 K via reaction of Fe2O3 with elemental cesium and rubidium alone or in combination with their hyperoxides AO2 where required by stoichiometry. The structures of the dark-red crystals have been determined by single crystal x-ray diffraction (Cs[FeO2]: cubic, space group Fd3m, a = 839.2(2) pm, Z = 8, R1 = 0.0547 and A5[Fe3O6] (A = Cs: orthorhombic, space group P212121, a = 861.8(2), b = 870.7(2), c = 1658.7(3) pm, Z = 4, R1 = 0.0617 and A = Rb: tetragonal, space group I4̅2d, a = 862.01(8), c= 1504.7(2) pm, Z =4, R1= 0.0334). These thre

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50

Oguntade, Bukunola K., Siya T. Hulushe, Eric C. Hosten, and Gareth M. Watkins. "Synthesis and crystal structure of hexaaquacopper(II) 2,5-dicarboxyterephthalate, C10H16O14Cu." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 1 (2021): 37–38. http://dx.doi.org/10.1515/ncrs-2020-0454.

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Abstract${\text{C}}_{10}{\text{H}}_{16}{\text{O}}_{14}$Cu, monoclinic, I2/a (no. 15), a = 7.2407(3) Å, b = 9.7565(4) Å, c = 21.1814(10) Å, β = 93.913(2)°, V = 1492.85(11) Å3, Z = 4, ${R}_{gt}$(F) = 0.0198, $w{R}_{\mathit{ref}}$(F2) = 0.0509, T = 200 K.

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