82 P. T. C LEVE, 



Analysis: the iodide dried at 100°. 



a. 0,2155 gr. gave 0,0850 gr. platinurn. 



b. 0,3025 gr. gave 0,0575 gr. carbonic acid =0,0157 gr. carbon and 0,0625 gr. water 



=0,0069 gr. liv drogen. 



The formula requires: 



Theory Experiment 



Platinurn 197,88 — 38, so 39, ii 



Carbon 24, oo — 4,67 5,19 



Hydrogen 10, oo — 1,94 2,29 



Iodine 254,oo 



Nitrogen 28,oo 



513,88 



- 



III. Bases of platinurn containing other organic radicles. 



A. Methylamine-compounds. By the action of methylamine upon the proto-chlo- 

 ride of platinurn M. Wurtz obtained a compound of the formula Pt2NH 5 C . CL,, which 

 has a green colour and is probably analogous to the chloride of Magnus. In this case 

 its formula would, most likely be written: Pt4(NH 5 C) . Cl 2 + C1 2 Pt. 



M. Wurtz has also obtained the chloride 



Pt4(NH 5 C).CI 2 , 

 which is analogous to the chloride of platodiammine. 



B. Butyalmine-compounds. Mr Gordon has obtained the chloride Pt| 2 L H " C 4 )C] and 



a green compound of the formula Pt . 2(NH X1 C 4 )C1 2 , which, when treated with ammonia 

 gives the chloride Pt . 2(NH 11 C 4 )2(NH 3 )C1 2 . To judgc from this reaction the green com- 

 pound can scarcely be analogous to the salt of Magnus. 



C. Toluidine-compounds. A yellow compound of the formula Pt 2(NH 9 C 7 )C1 2 was 

 obtained by Gordon. 



D. Xylidine-compounds A chloride of the formula Pt2(NH 11 C 8 ) . Cl 2 was prepared 

 by Mr Gordon. 



E. Piperidine-compounds According to G. Williams a compound of the formula 

 Pt.2(NH 7 a,).Cb exists. 



F. Chinoline compounds Mr. G. Williams has obtained a compound of the for- 

 mula Pt2(NH 7 C 9 )Cl 2 .? 



G. Pyridine-compounds According to Mr Andeeson pyridine and platinurn produce 

 a basic radiele, the chloride of which is written by Mr. Blomstrand: 



(Cl 



p |XH 5 C 5 , p 

 1 MNH.C, 0i 2' 



5 ^5 



Cl 



