Synthesis and structural study of new metallasilsesquioxanes of potassium and uranium

2017 ◽  
Vol 46 (8) ◽  
pp. 2415-2419 ◽  
Author(s):  
Stephan Gießmann ◽  
Volker Lorenz ◽  
Phil Liebing ◽  
Liane Hilfert ◽  
Axel Fischer ◽  
...  
Keyword(s):  
Single Crystal ◽  
Structural Study ◽  
X Ray Diffraction ◽  
X Ray

The first metallasilsesquioxanes comprising potassium and uranium have been synthesized and structurally characterized by single-crystal X-ray diffraction.

Structural Study of an Unusual Diels-Alder Adduct

1992 ◽  
Vol 45 (12) ◽  
pp. 2089 ◽  
Author(s):  
EL Ghisalberti ◽  
BW Skelton ◽  
AH White
Keyword(s):  
Single Crystal ◽  
Diffraction Study ◽  
Structural Study ◽  
Spectroscopic Studies ◽  
Diels Alder ◽  
X Ray Diffraction ◽  
X Ray ◽  
Naturally Occurring ◽  
Chemical Evidence ◽  
Alder Adduct

The structure of the compound obtained on heating the naturally occurring clerodane furanoditerpene (1) had been formulated as (2) on the basis of spectroscopic studies. A single-crystal X-ray diffraction study on the dihydro derivative of (2) has confirmed this and provides support for the stereochemistry previously assigned to (1) on the basis of chemical evidence.

An NMR and single-crystal X-ray diffraction structural study of RuII [12]aneS4 polypyridyl complexes

Polyhedron ◽  
1997 ◽  
Vol 16 (19) ◽  
pp. 3293-3304 ◽  
Author(s):  
Brian J. Goodfellow ◽  
Sara M.D. Pacheco ◽  
Julio Pedrosa de Jesus ◽  
Vitor Félix ◽  
Michael G.B. Drew
Keyword(s):  
Single Crystal ◽  
Structural Study ◽  
X Ray Diffraction ◽  
Polypyridyl Complexes ◽  
X Ray

scholarly journals Structural Study of Three 1,2,4-triazole Derivatives Prepared by Oxidative Cyclization of Thiosemicarbazides

Proceedings ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 20
Author(s):  
Mirian Artime ◽  
Alfonso Castiñeiras ◽  
Isabel García-Santos ◽  
Manuel Saa
Keyword(s):  
Acetic Acid ◽  
Single Crystal ◽  
Structural Study ◽  
Supramolecular Assembly ◽  
Oxidative Cyclization ◽  
Molecular Structures ◽  
X Ray Diffraction ◽  
X Ray ◽  
Triazole Derivatives

In the present research, 5,5-dimethyl-4-phenyl-4,5-dihydro-3H-1,2,4-triazole-3-thione (1) was prepared by condensation from N-phenylhydrazinecarbothioamide, while 4-phenyl-5-(pyrazin-2-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (2) and 2-((5-(pyridin-2-yl) -4H-1,2,4-triazol-3-yl)thio)acetic acid (3) was prepared by oxidative cyclization from 2-(amino(pyrazin-2-yl)methylene)-N-phenylhydrazine-1-carbothioamide and 2-(amino(pyridine-2-yl)methylene)hydrazine-1-carbothioamide, respectively. The three compounds have been well characterized and their molecular structures studied by single-crystal X-ray diffraction. The supramolecular assembly of each crystal has also been analyzed and discussed.

Structural Study of the Disordered RECd6 Quasicrystal Approximants (RE = Tb, Ho, Er, Tm and Lu)

2006 ◽  
Vol 61 (6) ◽  
pp. 644-649 ◽  
Author(s):  
Shu Ying Piao ◽  
Cesar P. Gömez ◽  
Sven Lidin
Keyword(s):  
Single Crystal ◽  
Crystal Structures ◽  
Structural Study ◽  
Diffraction Data ◽  
Unit Cell Dimension ◽  
Unit Cell ◽  
Cell Dimension ◽  
X Ray Diffraction ◽  
X Ray ◽  
Different Types

The crystal structures of approximants RECd6 (RE = Tb, Ho, Er, Tm and Lu) have been refined from single crystal X-ray diffraction data. This work is a continuation of a previous study of MCd6 approximants [1] in which the different types of disorder of the central Cd4 tetrahedra located in the dodecahedral cavities were examined. The structures of the title compounds are all similar to GdCd6 and disorder was observed in all these compounds. There is a correlation between the anisotropic displacement parameter and the unit cell dimension

Comparative evolved gas analytical and structural study on trans-diammine-bis(nitrito)-palladium(II) and platinum(II) by TG/DTA–MS, TG–FTIR, and single crystal X-ray diffraction

2009 ◽  
Vol 490 (1-2) ◽  
pp. 51-59 ◽  
Author(s):  
János Madarász ◽  
Petra Bombicz ◽  
Czugler Mátyás ◽  
Ferenc Réti ◽  
Gábor Kiss ◽  
...  
Keyword(s):  
Single Crystal ◽  
Structural Study ◽  
X Ray Diffraction ◽  
Evolved Gas ◽  
X Ray

scholarly journals Crystal structure and revision of the chemical formula of georgiadesite, Pb4(AsO3)Cl4(OH)

2000 ◽  
Vol 64 (5) ◽  
pp. 879-884 ◽  
Author(s):  
M. Pasero ◽  
D. Vacchiano
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structural Study ◽  
Diffraction Data ◽  
Chemical Formula ◽  
X Ray Diffraction ◽  
X Ray ◽  
Trigonal Prisms

AbstractThe crystal structure of the rare secondary lead mineral georgiadesite has been solved from single-crystal X-ray diffraction data (R = 0.071). The structure can be visualized in terms of alternating puckered (100) layers of [Pbϕ6] octahedra and [Pbϕ8] bicapped trigonal prisms (ϕ = generic anion). Lead also occurs in irregular, lopsided polyhedra. This structural study shows unambiguously that arsenic occurs as As3+ and not as As5+. The chemical formula of georgiadesite has therefore been revised, on structural grounds, to Pb4(AsO3)Cl4(OH).

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