Complexes of host compound (−)-(2R,3R)-2,3-dimethoxy-1,1,4,4-tetraphenylbutane-1,4-diol (DMT) with guests anisole and the methyl-substituted anisoles: host selectivity, thermal and single crystal diffraction considerations

2018 ◽  
Vol 92 (3-4) ◽  
pp. 357-367
Author(s):  
Benita Barton ◽  
Pieter L. Pohl ◽  
Eric C. Hosten
Keyword(s):  
Single Crystal ◽  
Single Crystal Diffraction ◽  
Host Selectivity ◽  
Host Compound

Host (–)-(2R,3R)-2,3-Dimethoxy-1,1,4,4-tetraphenylbutane-1,4-diol and Guests Aniline, N-Methylaniline, and N,N-Dimethylaniline: A Selectivity Study

2018 ◽  
Vol 71 (3) ◽  
pp. 133 ◽  
Author(s):  
Benita Barton ◽  
Eric C. Hosten ◽  
Pieter L. Pohl
Keyword(s):  
Single Crystal ◽  
Supramolecular Chemistry ◽  
Thermal Analyses ◽  
Hirshfeld Surface ◽  
Ternary Mixtures ◽  
Future Application ◽  
Preference Order ◽  
Single Crystal Diffraction ◽  
Binary And Ternary Mixtures ◽  
Host Selectivity

The compound (–)-(2R,3R)-2,3-dimethoxy-1,1,4,4-tetraphenylbutane-1,4-diol (DMT) forms 2 : 1 host : guest complexes with aniline, N-methylaniline, and N,N-dimethylaniline when recrystallized from these solvents. When the guests competed, as in binary and ternary mixtures, DMT proved to be remarkably selective for the alkylated guests, discriminating consistently against aniline. A host selectivity order of aniline << N-methylaniline < N,N-dimethylaniline was observed. Results from single-crystal diffraction, Hirshfeld surface, and thermal analyses were used to explain the observed preference order. This investigation shows that using the realm of supramolecular chemistry may have future application in the separation of these anilines.

A vacuum chamber for low background diffraction experiments

1996 ◽  
Vol 211 (9) ◽  
Author(s):  
R. B. Neder ◽  
M. Burghammer ◽  
Th. Grasl ◽  
H. Schulz
Keyword(s):  
Single Crystal ◽  
Vacuum Chamber ◽  
Single Crystal Diffraction ◽  
Low Background

AbstractWe developed a small vacuum chamber for very low background single crystal diffraction experiments. The chamber has been designed for a large Eulerian cradle. The

Combined high resolution powder and single-crystal diffraction to determine the structure of Li1+xCeIIIxCeIV6-xF25

2007 ◽  
Vol 2007 (suppl_26) ◽  
pp. 455-460 ◽  
Author(s):  
G. Renaudin ◽  
E. Mapemba ◽  
M. El-Ghozzi ◽  
M. Dubois ◽  
D. Avignant ◽  
...  
Keyword(s):  
High Resolution ◽  
Single Crystal ◽  
Single Crystal Diffraction

scholarly journals Environmentally Friendly Nafion-Catalyzed Synthesis of Substituted 2-Ethyl-3-Methylquinolines from Aniline and Propionaldehyde under Microwave Irradiation

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 877
Author(s):  
Chieh-Kai Chan ◽  
Chien-Yu Lai ◽  
Cheng-Chung Wang
Keyword(s):  
Reaction Mechanism ◽  
Microwave Irradiation ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Environmentally Friendly ◽  
Single Crystal Diffraction ◽  
X Ray ◽  
Related Data ◽  
Heating Source ◽  
Chemical Structures

Herein, we report a facile synthetic methodology for the preparation of 2,3-dialkylquinolines from anilines and propionaldehydes. This cyclization involved environmentally friendly Nafion® NR50 as an acidic catalyst with microwave irradiation as the heating source. A series of substituted 2-ethyl-3-methylquinolines were prepared from various anilines and propionaldehyde derivatives through this protocol with good to excellent yields. Some new chemical structures were confirmed by X-ray single-crystal diffraction analysis and the related data were provided. The plausible reaction mechanism studies are also discussed.

scholarly journals Post‐synthetic modification unlocks a 2D‐to‐3D switch in MOF breathing response: a single‐crystal‐diffraction mapping study

2021 ◽  
Author(s):  
Lee Brammer ◽  
Elliot J. Carrington ◽  
Stephen F. Dodsworth ◽  
Sandra van Meurs ◽  
Mark R. Warren
Keyword(s):  
Single Crystal ◽  
Mapping Study ◽  
Single Crystal Diffraction ◽  
2D To 3D

scholarly journals Structural Diversity of Six Coordination Polymers Based on the Designed X-Shaped Ligand 1,1,1,1-Tetrakis[(3-pyridiniourea)methyl]methane

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2292 ◽  
Author(s):  
Qi-Long Zhang ◽  
Qing Yu ◽  
Hai-Fang Xie ◽  
Bo Tu ◽  
Hong Xu ◽  
...  
Keyword(s):  
Metal Ions ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Coordination Polymers ◽  
Chain Complex ◽  
Structural Diversity ◽  
Structural Comparison ◽  
Single Crystal Diffraction ◽  
X Ray ◽  
Loop Chain

In this study, six coordination polymers (CPs), {[Ag2(L)(CF3SO3)]·CF3SO3·2H2O·DMF}n (1), {[Ag(L)]·SbF6·4DMF·H2O}n (2), {[Zn(L)0.5(I)2]·3.75H2O}n (3), {[Cd2(L)(I)4(H2O)(DMF)]·4H2O·3DMF}n (4), {[Hg2(L)(I)4]·H2O·4DMF}n (5) and {[Hg2(L)(Cl)4]·2H2O·3DMF}n (6), were obtained based on the designed X-shaped urea-based ligand. X-ray single crystal diffraction analysis revealed that complex 1 displayed a 3D (3,4)-connected {6·82}{64·82}-tcj net. Complex 2 featured a 2D 4-connected {43·63} sheet. Complexes 3 and 5 exhibited a 1D polymeric loop chain. Complex 4 displayed a 1D polymeric fishbone chain. Complex 6 showed a 2D 4-connected {44·62}-sql sheet. Structural comparison revealed that not only the metal ions, but also the anions played crucial roles in the control of final structures.

scholarly journals One-pot tandem cyclization of enantiopure asymmetric cis-2,5-disubstituted pyrrolidines: Facile access to chiral 10-heteroazatriquinanes

2013 ◽  
Vol 9 ◽  
pp. 265-269 ◽  
Author(s):  
Ping-An Wang ◽  
Sheng-Yong Zhang ◽  
Henri B Kagan
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Single Crystal Diffraction ◽  
One Pot ◽  
X Ray ◽  
Tandem Cyclization

A series of chiral 10-heteroazatriquinanes were synthesized from enantiopure asymmetric cis-2,5-disubstituted pyrrolidines through a one-pot tandem cyclization procedure. The structures and configurations of these new chiral 10-heteroazatriquinanes are confirmed by X-ray single-crystal diffraction analysis.

Sign in / Sign up

Export Citation Format

Share Document