Ion Pair and Triple Ion Formation by Some Tetraalkylammonium Iodides in Binary Mixtures of Carbon Tetrachloride + Nitrobenzene†

2009 ◽  
Vol 54 (9) ◽  
pp. 2429-2435 ◽  
Author(s):  
Mahendra Nath Roy ◽  
Pran Kumar Roy ◽  
Radhey Shyam Sah ◽  
Prasanna Pradhan ◽  
Biswajit Sinha
2008 ◽  
Vol 53 (7) ◽  
pp. 1417-1420 ◽  
Author(s):  
Mahendra Nath Roy ◽  
Prasanna Pradhan ◽  
Rajesh Kumar Das ◽  
Biswajit Sinha ◽  
Prabir Kumar Guha

1981 ◽  
Vol 36 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Heinrich Nöth ◽  
Robert Rurländer ◽  
Peter Wolfgardt

Solutions of LiAlH4 in tetrahydrofuran (THF), glycoldimethylether (monoglyme), diglycoldimethylether (diglyme) and triglycoldimethylether (triglyme) as well as solutions of LiAlH4/THF in toluene have been investigated by 7Li and 27Al NMR. It was found that δ27Al is nearly independent of the solvent as is 1J(AlH). However, the line width of the 27A1 NMR signal shows strong solvent influences and, in addition, concentration and temperature dependence. Intermolecular hydride exchange becomes rapid in solutions of monoglyme and triglyme at room temperature. This can also be shown by the H/D exchange between LiAlH4 and LiAlD4. δ7Li data indicate that Li is hexacoordinated in the series of glycoldimethylethers, and LiAlH4 in diglyme seems to be the system in which the AlH4 moiety is least affected by ion pair or triple ion formation.


1998 ◽  
Vol 120 (16) ◽  
pp. 4035-4036 ◽  
Author(s):  
Hans J. Reich ◽  
William H. Sikorski ◽  
Birgir Ö. Gudmundsson ◽  
Robert R. Dykstra

1992 ◽  
Vol 88 (10) ◽  
pp. 1425-1431 ◽  
Author(s):  
Yoshihiro Miyauchi ◽  
Masashi Hojo ◽  
Natsuo Ide ◽  
Yoshihiko Imai

1990 ◽  
Vol 94 (15) ◽  
pp. 6073-6079 ◽  
Author(s):  
Masashi. Hojo ◽  
Akihiro. Watanabe ◽  
Taiji. Mizobuchi ◽  
Yoshihiko. Imai

1994 ◽  
Vol 39 (5) ◽  
pp. 629-638 ◽  
Author(s):  
Masashi Hojo ◽  
Hiroshi Hasegawa ◽  
Yoshihiro Miyauchi ◽  
Hironori Moriyama ◽  
Hitoshi Yoneda ◽  
...  

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