scholarly journals Single crystal diffraction analysis of the thermal spin conversion of [ Fe(btr)2(NCS)2] (H2O): evidence of spin-like domains formation

2006 ◽  
Vol 49 (2) ◽  
pp. 265-265 ◽  
Author(s):  
S. Pillet ◽  
J. Hubsch ◽  
C. Lecomte
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Single Crystal Diffraction ◽  
Spin Conversion

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 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.

Synthesis and Character of 2-Carboxylbenzaldehyde-2-Pyrroleformylhydrazone

2011 ◽  
Vol 233-235 ◽  
pp. 264-268 ◽  
Author(s):  
Li Na Wang ◽  
Xiang Rong Liu ◽  
Chun Yang ◽  
Jie Huang ◽  
Hui Wu Cai
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Elemental Analysis ◽  
Ftir Spectrum ◽  
Single Crystal Diffraction ◽  
X Ray

A new compound, 2-carboxylbenzaldehyde-2-pyrroleformylhydrazone (C13H11N3O3), was synthesized by condensation of 2-carboxylbenzaldehyde (C8H6O3) with 2-pyrroleformylhydrazine (C5H7N3O). Its structure has been determined on the basis of elemental analysis, FTIR spectrum, UV-vis spectrum,1HNMR,13CNMR, MS and X-ray single-crystal diffraction analysis.

scholarly journals Ruthenacarborane–Phenanthroline Derivatives as Potential Metallodrugs

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2322
Author(s):  
Martin Kellert ◽  
Imola Sárosi ◽  
Rajathees Rajaratnam ◽  
Eric Meggers ◽  
Peter Lönnecke ◽  
...  
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Organic Solvents ◽  
Side Product ◽  
Ambient Conditions ◽  
Carbonyl Ligand ◽  
Single Crystal Diffraction ◽  
Solubility In Water ◽  
Low Solubility

Ruthenium-based complexes have received much interest as potential metallodrugs. In this work, four RuII complexes bearing a dicarbollide moiety, a carbonyl ligand, and a phenanthroline-based ligand were synthesized and characterized, including single crystal diffraction analysis of compounds 2, 4, and 5 and an observed side product SP1. Complexes 2–5 are air and moisture stable under ambient conditions. They show excellent solubility in organic solvents, but low solubility in water.

scholarly journals Structure and photochromic properties of a novel diarylethene containing a 9-fluorenone hydrazone Schiff base moiety

2019 ◽  
Vol 44 (3-4) ◽  
pp. 137-141
Author(s):  
Yuexia Zhuge ◽  
Chunhong Zheng ◽  
Guanming Liao ◽  
Shouzhi Pu
Keyword(s):  
Schiff Base ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Fatigue Resistance ◽  
Crystalline Phase ◽  
Photochromic Properties ◽  
Single Crystal Diffraction ◽  
Fluorescence Modulation ◽  
High Fluorescence ◽  
Base Moiety

A novel diarylethene containing a 9-fluorenone hydrazone Schiff base moiety is designed and synthesized. The structure is characterized by single-crystal diffraction analysis and it shows excellent photochromism in the single crystalline phase. Moreover, the diarylethene product shows relatively high fluorescence modulation efficiency and good fatigue resistance.

A synchrotron X-ray diffraction analysis of near-stoichiometric LiNbO3

2001 ◽  
Vol 216 (8) ◽  
Author(s):  
B. Etschmann ◽  
N. Ishizawa ◽  
V. Streltsov ◽  
S. Oishi
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Diffraction Data ◽  
X Ray Diffraction ◽  
Single Crystal Diffraction ◽  
X Ray

AbstractSingle-crystal diffraction data was collected at 120 and 294 K for an approximately spherical LiNbO

Crystal Structure of 3-Indolepropionic Acid

2013 ◽  
Vol 454 ◽  
pp. 272-275
Author(s):  
Li Hua Wang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Ethanol Solution ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
Single Crystal Diffraction ◽  
One Dimensional ◽  
X Ray

The crystals of 3-indolepropionic acid have been obtained by evaporation from ethanol solution. The crystal structure of the 3-indolepropionic acid was determined by X-ray single crystal diffraction analysis. The crystal data for 3-indolepropionic acid: monoclinic, space group P2(1)/c, a = 14.3592(8) Å, b = 5.2446(2) Å, c = 12.3518(6) Å, V = 926.96(8) Å3, Z = 4, Mr = 189.21, De = 1.356 g/cm3, T = 298(2) K, F (000) = 400, R = 0.0435 and wR = 0.1010. The compound forms one-dimensional chained structure through hydrogen bonds and π-π interaction.

Hydrothermal Synthesis and Luminescent Characterization of Zn (II) Complex with 1,4-Bis(2’-formylphenyl)-1,4-dioxabutane Isonicotinoylhydrazone

2012 ◽  
Vol 424-425 ◽  
pp. 23-26
Author(s):  
Li Hua Wang
Keyword(s):  
Schiff Base ◽  
Hydrothermal Synthesis ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Schiff Base Ligand ◽  
Ir Spectrum ◽  
Luminescent Properties ◽  
Single Crystal Diffraction ◽  
X Ray

A aroylhydrazone Schiff-base ligand (1, 4-Bis(2’-formylphenyl)-1,4-dioxabutane isonicotinoylhydrazone) and its Zn (II) complex were synthesized by hydrothermal method. The ligand was characterized by IR spectrum, MS spectrum and X-ray single crystal diffraction analysis. The luminescent properties of the ligand and Zn (II) complex material have been investigated in solid and in organic solvents. The results show that the ligand has strong luminescent emission at ca. 454 nm and the fluorescence of Zn (II) complex is very weak.

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