scholarly journals Functionalized phosphonates as building units for multi-dimensional homo- and heterometallic 3d–4f inorganic–organic hybrid-materials

2016 ◽  
Vol 45 (32) ◽  
pp. 12854-12861 ◽  
Author(s):  
C. Köhler ◽  
E. Rentschler

Using the multifunctional ligand H4L (2,2′-bipyridinyl-5,5′-diphosphonic acid), a new family of 0D-3D inorganic–organic hybrid-materials was prepared and characterized by single crystal diffraction and magnetic measurements.

Author(s):  
R. B. Neder ◽  
M. Burghammer ◽  
Th. Grasl ◽  
H. Schulz

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


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

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 877
Author(s):  
Chieh-Kai Chan ◽  
Chien-Yu Lai ◽  
Cheng-Chung Wang

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.


Author(s):  
R. Lee Ayscue ◽  
Valérie Vallet ◽  
Jeffery A. Bertke ◽  
Florent Réal ◽  
Karah E. Knope

2021 ◽  
Author(s):  
Lee Brammer ◽  
Elliot J. Carrington ◽  
Stephen F. Dodsworth ◽  
Sandra van Meurs ◽  
Mark R. Warren

2007 ◽  
Vol 46 (9) ◽  
pp. 3459-3466 ◽  
Author(s):  
Alberto Albinati ◽  
Francesco Faccini ◽  
Silvia Gross ◽  
Guido Kickelbick ◽  
Silvia Rizzato ◽  
...  

2014 ◽  
Vol 70 (a1) ◽  
pp. C1101-C1101
Author(s):  
Laurent Castro ◽  
Nicolas Penin ◽  
Dany Carlier ◽  
Alain Wattiaux ◽  
Stanislav Pechev ◽  
...  

Iron vanadates and phosphates have been widely explored [1-2] as possible electrode material for Li-ion batteries. In the goal of finding new materials, our approach was to consider existing materials and to investigate the flexibility of their network for possible substitutions. Among the different materials containing iron and vanadium, Cu3Fe4(XO4)6 (X = P, V) are isostructural to Fe7(PO4)6. Lafontaine et al. [3] discussed the structural relationships between β-Cu3Fe4(VO4)6 and several other vanadates, phosphates and molybdates of general formula AxBy(VO4)6. The interesting network flexibility was then demonstrated with the existence of four different crystallographic sites, which can be partially occupied depending on the x+y value : x+y = 7 for β-Cu3Fe4(VO4)6) and x+y = 8 for NaCuFe2(VO4)3. The LixFey(VO4)6 phase was then prepared considering the substitution of Li+ and Fe3+ for Cu2+ ions in β-Cu3Fe4(VO4)6 and the existence of an extra site to accommodate the charge compensation (7 ≤ x+y ≤ 8). As expected, a new lithium iron vanadate, isotructural to mineral Howardevansite was then obtained. Single crystal diffraction data were collected at room temperature on Enraf-Nonius CAD-4 diffractometer. Structure was refined with JANA-2006 program package. Mössbauer and magnetic measurements were also used to check the oxidation state of iron ions, to support the obtained crystal structure and to consider any possible structural/magnetic transitions. All the results will be presented and discussed in this presentation.


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