ChemInform Abstract: DIMERIZATION STEREOCHEMISTRY AND LOCAL ORDER IN ORGANIC CRYSTAL IMPERFECTIONS. PART 1. PHOTODIMERIZATION OF SOME DICHLOROANTHRACENES IN THE SOLID STATE AN IN FLUID SOLUTION

1978 ◽  
Vol 9 (13) ◽  
Author(s):  
J.-P. DESVERGNE ◽  
F. CHEKPO ◽  
H. BOUAS-LAURENT
Keyword(s):  
Solid State ◽  
Organic Crystal ◽  
Local Order ◽  
Fluid Solution ◽  
Crystal Imperfections

Pentasulfurated benzene-cored asterisks: relationship between crystal structure and luminescence properties

2020 ◽  
Vol 44 (8) ◽  
pp. 3249-3254
Author(s):  
Marco Villa ◽  
Simone D’Agostino ◽  
Piera Sabatino ◽  
Raymond Noel ◽  
José Busto ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Luminescence Properties ◽  
Fluid Solution ◽  
Bright Orange ◽  
Orange Luminescence

Pentasulfurated benzene chromophores are not luminescent in fluid solution and are phosphorescent in the solid state; in particular, the cyano-derivative which displays a bright orange luminescence.

scholarly journals NMR crystallography driven structure determination

2014 ◽  
Vol 70 (a1) ◽  
pp. C1517-C1517
Author(s):  
Charlotte Martineau ◽  
Boris Bouchevreau ◽  
Francis Taulelle
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Powder Diffraction ◽  
Structure Determination ◽  
Pulse Sequences ◽  
Local Order ◽  
Oh Groups ◽  
Nmr Data ◽  
Wide Range ◽  
Hybrid Solids

Because solid-state nuclear magnetic resonance (ss-NMR) spectroscopy is sensitive to local order and is selective to the nature of the atoms, this technique has emerged as ideally complementary to powder diffraction for structure determination of a wide range of solids. Here, we will illustrate with the example of hybrid solids (aluminophosphates) the role of high-resolution one and two-dimensional solid-state NMR data to drive the search for a structure model from powder diffraction data. Great progresses have been made in the field of ss-NMR in the past few years (higher magnetic field, more robust pulse sequences, etc.) that now allows access to NMR spectra with very high resolution in such compounds [1]. From these NMR data, information about the cations (number, coordination number, etc) and the connectivity between the cation polyhedra are readily available. Such knowledge allows performing a more constraint structure search, thus increasing the chance to obtain a solution [2]. NMR data further provide information about the non-periodic sub-networks in hybrid compounds (water molecules, OH groups, templates...), allowing to draw very detailed pictures of the solids [3].

A Solid-State 17O NMR Study of Local Order and Crystallinity in Amine-Templated Mesoporous Nb Oxide

2007 ◽  
Vol 119 (15) ◽  
pp. 2689-2692 ◽  
Author(s):  
Boris O. Skadtchenko ◽  
Yuxiang Rao ◽  
Tom F. Kemp ◽  
Prodipta Bhattacharya ◽  
Pamela A. Thomas ◽  
...  
Keyword(s):  
Solid State ◽  
Local Order ◽  
17O Nmr ◽  
Nmr Study

14N solid-state NMR: a sensitive probe of the local order in zeolites

2013 ◽  
Vol 15 (42) ◽  
pp. 18349 ◽  
Author(s):  
Eddy Dib ◽  
Tzonka Mineva ◽  
Philippe Gaveau ◽  
Bruno Alonso
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Local Order
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