Enantiomer Separation of Nitriles and Epoxides by Crystallization with Chiral Organic Salts: Chirality Switching Modulated by Achiral Acids

2021 ◽  
Author(s):  
Koichi Kodama ◽  
Yuki Shimomura ◽  
Takuji Hirose
Keyword(s):  
Enantiomer Separation ◽  
Organic Salts

On the reliability of volume-based thermodynamics for inorganic-organic salts and coordination compounds with uncharged ligands

2017 ◽  
Author(s):  
Robson de Farias
Keyword(s):  
Coordination Compound ◽  
Coordination Compounds ◽  
Formation Enthalpy ◽  
Lattice Energy ◽  
Chemical Hardness ◽  
Acid Anion ◽  
Organic Salts ◽  
Density Values ◽  
Lattice Energies

In the present work, the reliability of the volume-based thermodynamics (VBT) methods in the calculation of lattice energies is investigated by applying the “traditional” Kapustinskii equation [8], as well as Glasser-Jenkins [3] and Kaya [5] equations to calculate the lattice energies for Na, K and Rb pyruvates [9-11] as well as for the coordination compound [Bi(C<sub>7</sub>H<sub>5</sub>O<sub>3</sub>)<sub>3</sub>C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>] [17] (in which C<sub>12</sub>H<sub>8</sub>N<sub>2</sub> = 1,10 phenathroline and C<sub>7</sub>H<sub>5</sub>O<sub>3</sub><sup>-</sup>= <i>o</i>-hyddroxybenzoic acid anion). As comparison, the lattice energies are also calculated using formation enthalpy values for sodium pyrivate and [Bi(C<sub>7</sub>H<sub>5</sub>O<sub>3</sub>)<sub>3</sub>C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>]. For the pyruvates, is verified that none of the considered approach, Kapustinskii, Glasser, Kaya or density, provides values that agrees in an acceptable % difference, with the lattice energy values calculated from the formation enthalpy values. However, it must be pointed out that Kaya approach, with deals with a chemical hardness approach is the better one for such kind of inorganic-organic salts. Based on data obtained for [Bi(C<sub>7</sub>H<sub>5</sub>O<sub>3</sub>)<sub>3</sub>C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>] is concluded that the only one VBT method that provides reliable lattice energies for compounds with bulky uncharged ligands is that one based on density values (derived by Glasser-Jenkins).

Directing cation-cation interactions in thiamine compounds: Analysis of a series of organic salts based on vitamin B1

2021 ◽  
Vol 1232 ◽  
pp. 130046
Author(s):  
Joseph Traver ◽  
Erica Chenard ◽  
Matthias Zeller ◽  
Gary L. Guillet ◽  
Will E. Lynch ◽  
...  
Keyword(s):  
Vitamin B1 ◽  
Organic Salts

scholarly journals Switching between TADF and RTP: anion-regulated photoluminescence in organic salts and co-crystals

2021 ◽  
Author(s):  
Zhen Xu ◽  
Duane Hean ◽  
Clàudia Climent ◽  
David Casanova ◽  
Michael O. Wolf
Keyword(s):  
Photoluminescence Properties ◽  
Organic Salts

Anions in organic salts are used to tune photoluminescence properties, especially TADF and RTP. Bromide facilitates RISC and give short delayed lifetimes while tetrafluoroborate leads to RTP with afterglow.

Improving energy relay dyes for dye-sensitized solar cells by use of a group of uniform materials based on organic salts (GUMBOS)

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 95273-95282 ◽  
Author(s):  
Paulina E. Kolic ◽  
Noureen Siraj ◽  
Mingyan Cong ◽  
Bishnu P. Regmi ◽  
Xinning Luan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Organic Salts ◽  
Dye Sensitized ◽  
Respective Parent ◽  
Sensitized Solar Cells ◽  
Improved Characteristics

Energy relay dyes based on GUMBOS displayed improved characteristics in comparison to respective parent dyes including solubility and solar efficiency.

Viscosity of Gelatin Solution Containing Cationic Crosslinker

2013 ◽  
Vol 750-752 ◽  
pp. 1660-1663
Author(s):  
Xiang Jian Meng ◽  
Yue Zhi Cui ◽  
Cong De Qiao ◽  
Tian Duo Li ◽  
Jing Xu
Keyword(s):  
Thermal Stability ◽  
Organic Compounds ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Gelatin Solution ◽  
Ionic Bond ◽  
Organic Salts ◽  
Thermal Stability Of

Gelatin, as an amphoteric polyelectrolyte, can combine with cationic or anionic organic compounds by ionic bond. In this work, two binary quaternary ammonium salts have been prepared from 1,2-ethanediamine and 1,4-butanediamine. The viscosity of aqueous gelatin solution containing these two organic salts is studied systematically, which verifies the occurrence of the crosslinking between the gelatin and the binary quaternary ammonium salts. This crosslinking improves the thermal stability of the dried gelatin.

Synthesis and Physical Studies of the Organic Salts of Pindolol: Pindolol Benzoate and Pindolol 2-Methoxyphenylacetate

1996 ◽  
Vol 22 (11) ◽  
pp. 1063-1073 ◽  
Author(s):  
Hanna Pietiläinen ◽  
Tarja Saesmaa ◽  
Veli-Pekka Tanninen
Keyword(s):  
Organic Salts
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