ChemInform Abstract: Thermal Fragmentation of 2-Chloropentylphosphonic Salts in the Solid State. Counter-Ion Effects on Reactivity and Selectivity.

ChemInform ◽  
2010 ◽  
Vol 29 (2) ◽  
pp. no-no
Author(s):  
B. G. MAFUNDA ◽  
A. M. MODRO ◽  
T. A. MODRO ◽  
E. STRAUSS ◽  
C. A. STRYDOM
Keyword(s):  
Solid State ◽  
Thermal Fragmentation ◽  
Counter Ion ◽  
Ion Effects

Thermal fragmentation of 2-chloropentylphosphonic salts in the solid state. Counter-ion effects on reactivity and selectivity

1997 ◽  
Vol 8 (5) ◽  
pp. 421-428 ◽  
Author(s):  
Brownlee G. Mafunda ◽  
Agnes M. Modro ◽  
Tomasz A. Modro ◽  
Erick Strauss ◽  
Christien A. Strydom
Keyword(s):  
Solid State ◽  
Thermal Fragmentation ◽  
Counter Ion ◽  
Ion Effects

scholarly journals Synthesis of cationic dibenzosemibullvalene-based phase-transfer catalysts by di-π-methane rearrangements of pyrrolinium-annelated dibenzobarrelene derivatives

2011 ◽  
Vol 7 ◽  
pp. 119-126 ◽  
Author(s):  
Heiko Ihmels ◽  
Jia Luo
Keyword(s):  
Solid State ◽  
Nitrogen Atom ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Covalent Attachment ◽  
Phase Transfer Catalysts ◽  
Counter Ion ◽  
Alkylation Reactions

Dibenzobarrelene derivatives, that are annelated with a pyrrolinium unit [N,N-dialkyl-3,4-(9',10'-dihydro-9',10'-anthraceno-3-pyrrolinium) derivatives], undergo a photo-induced di-π-methane rearrangement upon triplet sensitization to give the corresponding cationic dibenzosemibullvalene derivatives [N,N-dialkyl-3,4-{8c,8e-(4b,8b-dihydrodibenzo[a,f]cyclopropa[cd]pentaleno)}pyrrolidinium derivatives]. Whereas the covalent attachment of a benzophenone functionality to the pyrrolinium nitrogen atom did not result in an internal triplet sensitization, the introduction of a benzophenone unit as part of the counter ion enables the di-π-methane rearrangement of the dibenzobarrelene derivative in the solid-state. Preliminary experiments indicate that a cationic pyrrolidinium-annelated dibenzosemibullvalene may act as phase-transfer catalyst in alkylation reactions.

scholarly journals Counter ion effects on the energy transfer processes in PPV

2014 ◽  
Vol 605-606 ◽  
pp. 147-151 ◽  
Author(s):  
Paulo Alliprandini Filho ◽  
Alexandre Marletta ◽  
Leni Akcelrud ◽  
Osvaldo N. Oliveira
Keyword(s):  
Energy Transfer ◽  
Transfer Processes ◽  
Counter Ion ◽  
Ion Effects

Binary counter ion effects and dielectric behavior of iodide ion conducting gel-polymer electrolytes for high-efficiency quasi-solid-state solar cells

2020 ◽  
Vol 22 (22) ◽  
pp. 12532-12543
Author(s):  
T. M. W. J. Bandara ◽  
S. L. N. Senavirathna ◽  
H. M. N. Wickramasinghe ◽  
K. Vignarooban ◽  
L. A. De Silva ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Polymer Electrolytes ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dielectric Behavior ◽  
Gel Polymer Electrolytes ◽  
Positive Effects ◽  
Ion Effects ◽  
Ion Conducting

A series of highly efficient quasi-solid-state dye-sensitized solar cells (DSCs) is prepared by harnessing the binary cation effect and positive effects of the selected performance enhancers of gel-polymer electrolytes.

Effects of counter-ion size on solid state structures of M2+(Nitrilotriacetate) complexes

2005 ◽  
Vol 358 (4) ◽  
pp. 1284-1288 ◽  
Author(s):  
Nathan R. Lien ◽  
Mitchell A. Timmons ◽  
Gloria J.H. Belkin ◽  
James R. Holst ◽  
Merryn L. Janzen ◽  
...  
Keyword(s):  
Solid State ◽  
Counter Ion ◽  
Ion Size ◽  
Solid State Structures

Counter-Ion Effects and Interfacial Properties of Aqueous Tetrabutylammonium Halide Solutions

2004 ◽  
Vol 57 (12) ◽  
pp. 1211 ◽  
Author(s):  
Luboš Vrbka ◽  
Pavel Jungwirth
Keyword(s):  
Slab Geometry ◽  
Ion Interactions ◽  
Counter Ion ◽  
Counter Ions ◽  
Aqueous Solvation ◽  
Ionic Size ◽  
Surface Active ◽  
Ion Effects ◽  
Dynamics Simulations ◽  
The Individual

Aqueous solvation of tetrabutylammonium fluoride and iodide was investigated by means of molecular dynamics simulations in extended slab geometry. The varying propensities of the individual ions for the air/water interface were quantified and analyzed in terms of hydrophobic, polarization, and ion–ion interactions. While the cations behave as standard ionic surfactants, the surface behaviour of the halide counter ions strongly depends on the ionic size and polarizability—iodide is surface active, while fluoride is repelled from the interface. The counter-ion effects at different concentrations on the density and charge profiles across the aqueous slab are discussed in detail.

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