Special Collection: Advances in Ultrahigh-Pressure Metamorphism: Tetrahedral boron in natural and synthetic HP/UHP tourmaline: Evidence from Raman spectroscopy, EMPA, and single-crystal XRD

2016 ◽  
Vol 101 (1) ◽  
pp. 93-104 ◽  
Author(s):  
Martin Kutzschbach ◽  
Bernd Wunder ◽  
Dieter Rhede ◽  
Monika Koch-Müller ◽  
Andreas Ertl ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Single Crystal ◽  
Ultrahigh Pressure ◽  
Single Crystal Xrd ◽  
Ultrahigh Pressure Metamorphism ◽  
Special Collection ◽  
Tetrahedral Boron ◽  
Natural And Synthetic

scholarly journals Is quartz a potential indicator of ultrahigh-pressure metamorphism? Laser Raman spectroscopy of quartz inclusions in ultrahigh-pressure garnets

2010 ◽  
Vol 21 (6) ◽  
pp. 1313-1323 ◽  
Author(s):  
Andrey V. Korsakov ◽  
Maria Perraki ◽  
Vladimir P. Zhukov ◽  
Kris De Gussem ◽  
Peter Vandenabeele ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ultrahigh Pressure ◽  
Laser Raman Spectroscopy ◽  
Laser Raman ◽  
Ultrahigh Pressure Metamorphism ◽  
Potential Indicator

Combining polarized low-frequency Raman with XRD to identify directional structural motifs in a crystalline metal–organic pyrolysis precursor

2021 ◽  
Author(s):  
Tal Ben Uliel ◽  
Eliyahu M. Farber ◽  
Hagit Aviv ◽  
Wowa Stroek ◽  
Marilena Ferbinteanu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Coordination Chemistry ◽  
Single Crystal ◽  
Long Range ◽  
Low Frequency ◽  
Single Crystal Xrd ◽  
Structural Motifs ◽  
Metal Organic ◽  
Crystalline Metal

Long-range structures and dynamics are central to coordination chemistry, yet are hard to identify experimentally. By combining polarized low-frequency Raman spectroscopy with single crystal XRD to study barium nitrilotriacetate, a...

Th@D5h(6)-C80: highly symmetric fullerene cage stabilized by a single metal ion

2021 ◽  
Author(s):  
Ning Chen ◽  
Yingjing Yan ◽  
Roser Morales-Martínez ◽  
Jiaxin Zhuang ◽  
Yang-Rong Yao ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Raman Spectroscopy ◽  
Single Crystal ◽  
Metal Ion ◽  
Xrd Analysis ◽  
Fullerene Cage ◽  
Single Crystal Xrd ◽  
X Ray Diffraction ◽  
X Ray ◽  
Single Crystal Xrd Analysis

A novel endohedral metallofullerene (mono-EMF), Th@D5h(6)-C80, has been successfully synthesized and fully characterized by mass spectrometry, single crystal X-ray diffraction, UV-vis-NIR, Raman spectroscopy and cyclic voltammetry. Single crystal XRD analysis...

scholarly journals Crystal Structure of Moganite and Its Anisotropic Atomic Displacement Parameters Determined by Synchrotron X-ray Diffraction and X-ray/Neutron Pair Distribution Function Analyses

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 272
Author(s):  
Seungyeol Lee ◽  
Huifang Xu ◽  
Hongwu Xu ◽  
Joerg Neuefeind
Keyword(s):  
Crystal Structure ◽  
Distribution Function ◽  
Single Crystal ◽  
Pair Distribution Function ◽  
Atomic Displacement ◽  
Single Crystal Xrd ◽  
X Ray Diffraction ◽  
X Ray ◽  
Neutron Pair ◽  
Atomic Displacement Parameters

The crystal structure of moganite from the Mogán formation on Gran Canaria has been re-investigated using high-resolution synchrotron X-ray diffraction (XRD) and X-ray/neutron pair distribution function (PDF) analyses. Our study for the first time reports the anisotropic atomic displacement parameters (ADPs) of a natural moganite. Rietveld analysis of synchrotron XRD data determined the crystal structure of moganite with the space group I2/a. The refined unit-cell parameters are a = 8.7363(8), b = 4.8688(5), c = 10.7203(9) Å, and β = 90.212(4)°. The ADPs of Si and O in moganite were obtained from X-ray and neutron PDF analyses. The shapes and orientations of the anisotropic ellipsoids determined from X-ray and neutron measurements are similar. The anisotropic ellipsoids for O extend along planes perpendicular to the Si-Si axis of corner-sharing SiO4 tetrahedra, suggesting precession-like movement. Neutron PDF result confirms the occurrence of OH over some of the tetrahedral sites. We postulate that moganite nanomineral is stable with respect to quartz in hypersaline water. The ADPs of moganite show a similar trend as those of quartz determined by single-crystal XRD. In short, the combined methods can provide high-quality structural parameters of moganite nanomineral, including its ADPs and extra OH position at the surface. This approach can be used as an alternative means for solving the structures of crystals that are not large enough for single-crystal XRD measurements, such as fine-grained and nanocrystalline minerals formed in various geological environments.

Towards the Synthesis of Imidazopyridine Derivatives: Characterization, Single Crystal XRD, Hirshfeld Analysis, and Biological Evaluation

2021 ◽  
Vol 6 (4) ◽  
pp. 843-851
Author(s):  
Sharanya Kuthyala ◽  
Sareen Sheikh ◽  
G. K. Nagaraja ◽  
B. R. Kannika ◽  
S. Madan Kumar ◽  
...  
Keyword(s):  
Single Crystal ◽  
Biological Evaluation ◽  
Single Crystal Xrd ◽  
Hirshfeld Analysis ◽  
Imidazopyridine Derivatives

Local strain evaluation of single crystal Si pillar by micro Raman spectroscopy and photoluminescence

2008 ◽  
Vol 517 (1) ◽  
pp. 31-33 ◽  
Author(s):  
Dong Wang ◽  
Hiroshi Nakashima ◽  
Masanori Tanaka ◽  
Taizoh Sadoh ◽  
Masanobu Miyao ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Single Crystal ◽  
Local Strain ◽  
Micro Raman Spectroscopy
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