Crystal growth and the crystal structures of two modifications of gold monobromide, I-AuBr and P-AuBr

1978 ◽  
Vol 57 (2) ◽  
pp. P47-P57 ◽  
Author(s):  
E.M.W. Janssen ◽  
G.A. Wiegers
Keyword(s):  
Crystal Growth ◽  
Crystal Structures

Crystal Structures of Tetragonal NdPc2O and NdPc2Clx,O1-x Obtained from NdPc2H by Anodic Crystal Growth

1988 ◽  
Vol 156 (1) ◽  
pp. 247-256 ◽  
Author(s):  
Mireille Mossoyan-deneux ◽  
David Benlian ◽  
Andre Baldy ◽  
Marcel Pierrot
Keyword(s):  
Crystal Growth ◽  
Crystal Structures

The Inverse Perovskite Nitrides (Sr3 N2/3-x )Sn, (Sr3 N2/3-x )Pb, and (Sr3 N)Sb: Flux Crystal Growth, Crystal Structures, and Physical Properties

2017 ◽  
Vol 644 (3) ◽  
pp. 161-167 ◽  
Author(s):  
Manisha Pathak ◽  
Dominik Stoiber ◽  
Matej Bobnar ◽  
Alim Ormeci ◽  
Yurii Prots ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Physical Properties ◽  
Crystal Structures

Hydrothermal Crystal Growth and Crystal Structures of the Mercury(II) Chromates(VI) α-HgCrO4, β-HgCrO4, and HgCrO4·H2O

2006 ◽  
Vol 61 (6) ◽  
pp. 708-714 ◽  
Author(s):  
Berthold Stöger ◽  
Matthias Weil
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystals ◽  
Crystal Structures ◽  
Chromic Acid ◽  
Structure Type ◽  
Data Sets ◽  
Hydrothermal Conditions ◽  
Hydrothermal Crystal Growth ◽  
Structure Factors

Single crystals of α-HgCrO4, β -HgCrO4 and HgCrO4 ・ H2O were obtained by reacting yellow HgO in chromic acid of various concentrations under hydrothermal conditions at 200 °C (4 d). All crystal structures were solved and refined from single crystal diffractometer data sets [α-HgCrO4: P21/n, Z = 4, a = 5.5079(8), b = 8.5266(12), c = 7.3503(10) Å , β = 94.022(3)°, 955 structure factors, R[F2 > 2σ (F2)] = 0.0296; β -HgCrO4: Cmcm, Z = 4, a = 5.7187(9), b = 9.0169(14), c = 7.0114(11) Å, 361 structure factors, R[F2 > 2σ (F2)] = 0.0275; HgCrO4 ・ H2O: P1̅, Z = 2, a=5.6157(15), b =6.1115(16), c= 7.590(2) Å , α =108.850(5), β =91.666(5), γ =116.569(5)°, 1235 structure factors, R[F2 > 2σ (F2)] = 0.0316]. The previously reported structure of α-HgCrO4 has been re-determined. It contains distorted [HgO7] pentagonal bipyramids in which the short bonds are directed towards the apices. The new polymorph β -HgCrO4 adopts the CrVO4 (β -CrPO4) structure type and is composed of slightly distorted [HgO6] octahedra. The previously unknown monohydrate HgCrO4 ・ H2O crystallizes in an unique structure and is composed of one nearly regular [HgO4(H2O)2] octahedron and one considerably distorted [HgO6] octahedron. All three structures contain tetrahedral chromate anions CrO42− as the second building units with average Cr-O distances of ca. 1.65 Å

Single-Crystal Synthesis

2021 ◽  
pp. 161-178
Author(s):  
Gang Cao ◽  
Lance E. DeLong
Keyword(s):  
Crystal Growth ◽  
Transition Metal ◽  
Metal Oxides ◽  
Single Crystals ◽  
Crystal Structures ◽  
Transition Metal Oxides ◽  
Magnetic Moments ◽  
Spin Orbit ◽  
Spin Orbit Interactions ◽  
Almost All

Growing single crystals of 4d- and 5d-transition metal oxides is often difficult, as they tend to form incongruently, as well as having high vapor pressure and high melting points. Two crystal growth techniques are commonly used for transition metal oxides—flux and floating-zone techniques; each has advantages and disadvantages. An established capability in both techniques makes it possible to grow single crystals of almost all stable materials. Some basic aspects of both techniques are discussed, and a few general remarks on crystal growth of 4d- and 5d-transition metal oxides are presented. Crystal structures of most 4d- and 5d-transition metal oxides are inherently distorted. An innovative “field-altering” technique is under development, in which an applied magnetic field aligns magnetic moments and, through strong spin-orbit interactions and magnetoelastic coupling, alters crystal structures at high temperatures. Preliminary results show that a field-altering technology is highly effective for resolving physical properties of spin-orbit-coupled oxides.

Crystal growth and crystal structures of the layered ionic conductors–sodium lithium titanium oxides

2000 ◽  
Vol 2 (5) ◽  
pp. 443-449 ◽  
Author(s):  
G.V Shilov ◽  
V.B Nalbandyan ◽  
V.A Volochaev ◽  
L.O Atovmyan
Keyword(s):  
Crystal Growth ◽  
Crystal Structures ◽  
Titanium Oxides ◽  
Ionic Conductors ◽  
Lithium Titanium
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