scholarly journals Absolute Structure Determination of Chiral Crystals Consisting of Achiral Benzophenone with Single-crystal X-ray Diffraction and Its Correlation with Solid-state Circular Dichroism

2016 ◽  
Vol 45 (5) ◽  
pp. 526-528
Author(s):  
Arimasa Matsumoto ◽  
Sumeru Tsuchiya ◽  
Yuki Hagiwara ◽  
Kazuhiko Ishikawa ◽  
Hideko Koshima ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Solid State ◽  
Single Crystal ◽  
Structure Determination ◽  
X Ray Diffraction ◽  
X Ray ◽  
Chiral Crystals ◽  
Circular Dichroïsm ◽  
Absolute Structure

scholarly journals Exploiting the Synergy of Powder X-ray Diffraction and Solid-State NMR Spectroscopy in Structure Determination of Organic Molecular Solids

2013 ◽  
Vol 117 (23) ◽  
pp. 12258-12265 ◽  
Author(s):  
Dmytro V. Dudenko ◽  
P. Andrew Williams ◽  
Colan E. Hughes ◽  
Oleg N. Antzutkin ◽  
Sitaram P. Velaga ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Structure Determination ◽  
Solid State Nmr ◽  
Molecular Solids ◽  
X Ray Diffraction ◽  
X Ray ◽  
Solid State Nmr Spectroscopy

Crystal structure determination of Ag2Ga by single crystal X-ray diffraction

1998 ◽  
Vol 213 (12) ◽  
Author(s):  
A. E. Gunnæs ◽  
A. Olsen ◽  
P. T. Zagierski ◽  
B. Klewe ◽  
O. B. Karlsen ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Determination ◽  
Crystal Structure Determination ◽  
X Ray Diffraction ◽  
X Ray

AbstractThe crystal structure of

Chiral crystals from porphyrinoids possessing a very low racemization barrier

CrystEngComm ◽  
2016 ◽  
Vol 18 (20) ◽  
pp. 3561-3565 ◽  
Author(s):  
Justyna Śniechowska ◽  
Piotr Paluch ◽  
Grzegorz Bujacz ◽  
Marcin Górecki ◽  
Jadwiga Frelek ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Nmr Spectroscopy ◽  
Circular Dichroism Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Chiral Crystals ◽  
Circular Dichroïsm

A novel chiral crystal of 5,10,15-tris(pentafluorophenyl)corrole was obtained and characterized by various methods including X-ray diffraction, NMR spectroscopy and circular dichroism spectroscopy.

Tropical Marine Algae. V. The Structure Determination of Two Novel Sesquiterpenes From the Red Alga Laurencia tenera (Rhodophyceae, Ceramiales, Rhodomelaceae)

1989 ◽  
Vol 42 (10) ◽  
pp. 1695 ◽  
Author(s):  
JC Coll ◽  
BW Skelton ◽  
AH White ◽  
AD Wright
Keyword(s):  
Single Crystal ◽  
Structure Determination ◽  
High Field ◽  
Marine Algae ◽  
Red Alga ◽  
X Ray Diffraction ◽  
X Ray

Laurencia tenera has been shown to contain two novel sesquiterpenes. The structure of the less abundant metabolite (3) was determined by single-crystal X-ray diffraction as (1S,2R,4S,5R,6R,8S,9R)-4,8-dibromo-2,5,6,9-tetramethyltricyclo[7.2.0.01.6] undecane-3-one.‡ The more abundant, but less stable metabolite (4) was investigated by extensive high-field N.M.R. spectroscopy. Its structure is proposed as (1S*,2R*,4R*,5R*,6R*,8R*)-4-bromo-2,5,6-trimethyl-11-methylenetricyclo[6.2.1.01.6]undecan-3-one.§ The sesquiterpene (3) is isomeric with the known metabolite perforatone (5).

Ab Initio Structure Determination of Quasicrystals via Single Crystal X-Ray Diffraction

2003 ◽  
Vol 805 ◽  
Author(s):  
Hiroyuki Takakura ◽  
Akiji Yamamoto ◽  
Marc de Boissieu ◽  
Taku J Sato ◽  
An Pang Tsai
Keyword(s):  
Single Crystal ◽  
Ab Initio ◽  
Structure Determination ◽  
Dimensional Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Higher Dimensional ◽  
Icosahedral Quasicrystals ◽  
Ab Initio Structure

ABSTRACTA standard approach for structure solution of ordinary crystals begins with solving the phase problem. We show that a similar procedure can be taken even in the case of quasicrystals using single crystal X-ray diffraction by applying an ab initio structure determination method called the low density elimination method. The first picture of the occupation domains, which must be specified in a higher-dimensional structure determination of quasicrystals, is obtained from a phase-reconstructed density. We present six-dimensional densities determined by this method and give their interpretation for several different types of icosahedral quasicrystals.

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