428 



Dibromide 

 nium 



rfC 1 TT V 1 ~1" 

 tnide of ethylene-diethyldiammo- > p * "< I M -n 



ium L Hi J J 



^ [Sp M }N.]"Br r 



[/C* TT \ ii "I ~1^* 



//-| 2 TT 4 \ XT 13 



(C 2 H : ) 3 |N 8 jBr r 



Dibromide of diethylene-diethyld 

 monium 



Tribromide 

 monium 



Tribromide of triethylene-triethyltriam- 



monium ' "H 



|"(C 2 2 H 4 5 ) 5 4 |N 4 ] Br 4 . 



L H 2 J 



Tetrabromide of pentethylene-tetrethyl- 

 tetrammonium 



Tetrabromide of hexethylene-tetrethyl- 

 tetrammonium 



The ammonias corresponding to the first five of these bromides 

 are known by former researches. They are all volatile ; there was 

 therefore no difficulty in separating them from the mixture. Libe- 

 rated by means of oxide of silver and submitted to the action of steam, 

 they were carried over, leaving behind a powerfully alkaline liquid, 

 which in most cases was found to consist exclusively of the hydrate 

 of pentethylene-tetrethyltetrammonium, 



The simple salts of this tetrammonium are extremely soluble, and 

 crystallize with the greatest difficulty ; I have therefore established 

 the composition of the series by the analysis of the difficultly soluble 

 platinum-salt and gold-salt. They are obtained in the form of yellow, 

 amorphous or very indistinctly crystalline precipitates, containing, 



r(C 2 H 4 ) 5 ] y 



Platinum-salt C 18 H 42 N 4 Pt 4 C1 12 = (C 2 H 5 ) 4 I N 4 C1 4 , 4PtCl 2 ; 



L H 2 j J 



r(C 2 H 4 ) 5 ] -f 



Gold-salt C 18 H 4a N 4 Au 4 C1 16 = (C 2 H 5 ) 4 I N 4 C1 4 , 4 AuCl 3 . 



L H 2 J J 



The formation of the pentethylenated tetrammonium is represented 



