The Interplay between Yttrium and Barium or Copper Trifluoroacetates andN-Methyldiethanolamine: Synthesis of a Heterometallic Y3Cu Trifluoroacetate Complex and a Homometallic Ba-TFA 1D Polymer

2007 ◽  
Vol 2007 (4) ◽  
pp. 602-608 ◽  
Author(s):  
Shashank Mishra ◽  
Jianyong Zhang ◽  
Liliane G. Hubert-Pfalzgraf ◽  
Dominique Luneau ◽  
Erwann Jeanneau
2004 ◽  
Vol 74 (4) ◽  
pp. 632 ◽  
Author(s):  
A. N. Belyaev ◽  
A. I. Fisher ◽  
M. Yu. Gorlov ◽  
S. A. Simanova

2019 ◽  
Vol 6 (2) ◽  
pp. 209-212 ◽  
Author(s):  
Coralie Duchemin ◽  
Nicolai Cramer

A gold(i)trifluoroacetate complex promotes direct additions of N-hydroxyimides to a wide variety of terminal alkynes yielding synthetically valuable N-enoxyimides.


2011 ◽  
Vol 81 (2) ◽  
pp. 427-427
Author(s):  
A. V. Eremin ◽  
D. D. Vaulina ◽  
M. A. Stepanova ◽  
A. N. Belyaev

2011 ◽  
Vol 29 (3) ◽  
pp. 193-197 ◽  
Author(s):  
Jiangbo SHE ◽  
Dongdong LI ◽  
Chaoqi HOU ◽  
Wenzheng YANG ◽  
Wei WEI ◽  
...  

1976 ◽  
Vol 54 (3) ◽  
pp. 440-447 ◽  
Author(s):  
Udo A. Spitzer ◽  
Trevor W. Toone ◽  
Ross Stewart

The HR acidity function has been determined for the trifluoroacetic acid–water system, and extended beyond 100% acid by the addition of trifluoroacetic anhydride, to 99.5 wt.% anhydride. The existing H0 acidity function is corrected and extended to 100% trifluoroacetic acid, confirming Eaborn's observation that H0 attains a minimum value at approximately 97% acid. Comparison of the acidity functions shows that although trifluoroacetic acid is only weakly protonating, it is a strongly protonating-dehydrating medium. Changes in the uv–visible spectrum of potassium permanganate produced by changing acid concentration are used to calculate the degree of further ionization of the permanganate ion; the correlation of this with the HR acidity function further suggests the presence of the permanganyl cation, MnO3+, or its trifluoroacetate complex or ester, MnO3•O2CCF3, in these solutions. A cryoscopic investigation into the mode of ionization of permanganate in trifluoroacetic acid reveals that extensive ion-pair formation occurs in this solvent. Although this effect prevents an unequivocal determination of the number of solute particles being made the results are consistent with the presence of a permanganyl species in solution.


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