scholarly journals Complexes of Thiourea with Alkali Metal Bromides and Iodides: Structural Properties, Mixed-Halide and Mixed-Metal Materials, and Halide Exchange Processes

2017 ◽  
Vol 17 (2) ◽  
pp. 786-793
Author(s):  
Vasileios G. Charalampopoulos ◽  
Benson M. Kariuki ◽  
Kenneth D.M. Harris
Keyword(s):  
Alkali Metal ◽  
Structural Properties ◽  
Mixed Metal ◽  
Exchange Processes ◽  
Halide Exchange ◽  
Metal Materials ◽  
Alkali Metal Bromides

Structural properties of liquid alkali-metal–lead alloys: NaPb, KPb, RbPb, and CsPb

1989 ◽  
Vol 40 (9) ◽  
pp. 6018-6029 ◽  
Author(s):  
H. T. J. Reijers ◽  
M.-L. Saboungi ◽  
D. L. Price ◽  
J. W. Richardson ◽  
K. J. Volin ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Structural Properties ◽  
Liquid Alkali Metal ◽  
Lead Alloys

Do Alkali Metal Anions (M−) Exist in Zeolite A?

1996 ◽  
Vol 431 ◽  
Author(s):  
P. D. Barker ◽  
P. A. Anderson ◽  
R. Dupree ◽  
S. Kitchin ◽  
P. P. Edwards ◽  
...  
Keyword(s):  
Solid State ◽  
Neutron Diffraction ◽  
Alkali Metal ◽  
Mas Nmr ◽  
Zeolite A ◽  
Nmr Studies ◽  
Mixed Metal ◽  
Powder Neutron Diffraction ◽  
Wide Range ◽  
Sodium And Potassium

AbstractRecent NMR studies by Nakayama et al. on sodium zeolite A saturated with potassium metal have implied the presence of the anionic Na− species. This, if confirmed, would represent the first observation in a zeolite and opens up a wide range of possibilities for mixed metal zeolitic systems. We report the results of a number of metal combinations, using both sodium and potassium forms of zeolite A as hosts, studied by ESR, solid state MAS-NMR and powder neutron diffraction.

Raman spectroscopic studies of structural properties of solid and molten states of the magnesium chloride – alkali metal chloride system

1980 ◽  
Vol 58 (2) ◽  
pp. 168-179 ◽  
Author(s):  
M. H. Brooker ◽  
C.-H. Huang
Keyword(s):  
Phase Diagram ◽  
Raman Spectrum ◽  
Alkali Metal ◽  
Structural Properties ◽  
Magnesium Chloride ◽  
Spectroscopic Studies ◽  
Metal Chloride ◽  
Alkali Metal Chloride ◽  
Chloride System ◽  
Raman Spectroscopic

Raman spectra have been recorded for solids and melts of composition MgCl2 + nACl (n = 0–4 and A = Cs, Rb, K, Na, Li). Characteristic spectra have been observed for each of the solids predicted from phase diagram studies and an additional two compounds formulated as Rb3MgCl5 and K3MgCl5 were detected. The compounds Cs2MgCl4, Cs3MgCl5, and Rb3MgCl5 contain the discrete MgCl42− tetrahedral ion which has been characterized by its Raman spectrum. These compounds melt with retention of the MgCl42− ion. Most other solids appear to contain distorted network octahedra with face-, edge-, or corner-shared chlorides. These solids melt to give the more stable tetrahedral MgCl42− ion. In melts of high MgCl2 concentration a new peak was detected which appears to be characteristic of the dimeric Mg2Cl73− ion which exists in equilibrium with the MgCl42− ion. The results are compared to similar studies on the better characterized CsCl–AlCl3 system.

ChemInform Abstract: Oxidative Intramolecular Bromo-Amination of N-Alkenyl Sulfonamides via Umpolung of Alkali Metal Bromides.

ChemInform ◽  
2011 ◽  
Vol 43 (1) ◽  
pp. no-no
Author(s):  
Katsuhiko Moriyama ◽  
Yuta Izumisawa ◽  
Hideo Togo
Keyword(s):  
Alkali Metal ◽  
Alkali Metal Bromides

scholarly journals s-Block cooperative catalysis: alkali metal magnesiate-catalysed cyclisation of alkynols

2019 ◽  
Vol 10 (22) ◽  
pp. 5821-5831 ◽  
Author(s):  
Michael Fairley ◽  
Laia Davin ◽  
Alberto Hernán-Gómez ◽  
Joaquín García-Álvarez ◽  
Charles T. O'Hara ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Mixed Metal ◽  
Cooperative Catalysis

Through mixed metal cooperativity, alkali metal magnesiates efficiently catalyse the cyclisation of alkynols.

Sign in / Sign up

Export Citation Format

Share Document