A Brief Sampling of Some Inorganic Structure Types

1986 ◽  
pp. 37-57
Author(s):  
Hugo Friedrich Franzen
Keyword(s):  
Inorganic Structure

scholarly journals Observation of ordered organic capping ligands on semiconducting quantum dots via powder X-ray diffraction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jason J. Calvin ◽  
Tierni M. Kaufman ◽  
Adam B. Sedlak ◽  
Michelle F. Crook ◽  
A. Paul Alivisatos
Keyword(s):  
Quantum Dots ◽  
Colloidal System ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ligand Shell ◽  
Scattering Factor ◽  
Organic Capping ◽  
Capping Ligands ◽  
Key Techniques ◽  
Inorganic Structure

AbstractPowder X-ray diffraction is one of the key techniques used to characterize the inorganic structure of colloidal nanocrystals. The comparatively low scattering factor of nuclei of the organic capping ligands and their propensity to be disordered has led investigators to typically consider them effectively invisible to this technique. In this report, we demonstrate that a commonly observed powder X-ray diffraction peak around $$q=1.4{\AA}^{-1}$$ q = 1.4 Å − 1 observed in many small, colloidal quantum dots can be assigned to well-ordered aliphatic ligands bound to and capping the nanocrystals. This conclusion differs from a variety of explanations ascribed by previous sources, the majority of which propose an excess of organic material. Additionally, we demonstrate that the observed ligand peak is a sensitive probe of ligand shell ordering. Changes as a function of ligand length, geometry, and temperature can all be readily observed by X-ray diffraction and manipulated to achieve desired outcomes for the final colloidal system.

Einführung in eine anorganische Strukturchemie

1986 ◽  
Vol 175 (3-4) ◽  
Author(s):  
E. Hellner
Keyword(s):  
Three Dimensional ◽  
Standard Setting ◽  
Transformation Matrix ◽  
Two Dimensional ◽  
Coordination Polyhedra ◽  
Systematic Description ◽  
Point Configurations ◽  
Inorganic Structure

AbstractA systematic description and classification of inorganic structure types is proposed on the basis of homogeneous or heterogeneous point configurations (Bauverbände) described by invariant lattice complexes and coordination polyhedra; subscripts or matrices explain the transformation of the complexes in respect (M) to their standard setting; the value of the determinant of the transformation matrix defines the order of the complex. The Bauverbände (frameworks) may be described by three-dimensional networks or two-dimensional nets explicitely shown with structures types of the

Investigation of the stability for self-powered CsPbBr3 perovskite photodetector with an all-inorganic structure

2018 ◽  
Vol 187 ◽  
pp. 69-75 ◽  
Author(s):  
Mengni Xue ◽  
Hai Zhou ◽  
Guokun Ma ◽  
Lu Yang ◽  
Zehao Song ◽  
...  
Keyword(s):  
Self Powered ◽  
The Stability ◽  
Inorganic Structure

Experimental and Theoretical Assessments of Aluminum Proximity in MFI Zeolites and Its Alteration by Organic and Inorganic Structure-Directing Agents

2020 ◽  
Vol 32 (21) ◽  
pp. 9277-9298
Author(s):  
Claire T. Nimlos ◽  
Alexander J. Hoffman ◽  
Young Gul Hur ◽  
Byung Jin Lee ◽  
John R. Di Iorio ◽  
...  
Keyword(s):  
Structure Directing Agents ◽  
Mfi Zeolites ◽  
Inorganic Structure

Ca3AI2SI2: An Inorganic Structure Analogous to but not Isoelectronic with Polyacene

1988 ◽  
Vol 92 (4) ◽  
pp. 887-893 ◽  
Author(s):  
Jing Li ◽  
Roald Hoffman
Keyword(s):  
Inorganic Structure
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