2 Art. 10. — K. Matsuno : 



the aquocohaUamniines are known. X denoting a monovalent 



. CH,NH., 

 anion, en is (^H;NH;• 



(1) [Co (N 1X3)5 H2O] X, Eoseo salt. Brick red colour 



r^i vTTT \ /TT/->\-iv Diaquotetrammine 



C^ HgO (1) n -v \ Cis-diaquodiethyleiiediamiiie 

 ^°JÏ,0{2)^'^J^^ ^^ cobaltic salt. Brownish red 



Tcoîî^S^^^e?!«"! X, b) Trans. do Greyish brown 



L H20(6) 'J ' 



/ON r/-i T^TTT \ /TT /^ \ iv TriaQ uotriammiiie cobaltic 



(3) [Co(NH,)3(H,0)3]X3 salt (Prepared from 



[Co (NHgls (N03)3]). Eeddisb violet 



Tetraquodiammine cobaltic 



(4) [Co (NH3)2 (H.jO^jXg salt, Aqueous solution 



only is known. 



? [Co (NH3) (H,0)6]X3 Unknown. 



/r\ r/n /TT r\\ nv Normal cobaltous . 



(5)^ [Co (HaO)6jX2 g^^^_ p^Qgg ^Q^Q^^^. 



/^^ rno ri tt n /attt > 1Y Chloraquot^trammine 



(6) [Co CI H,0 (NH3),]X, cobaltic salt. Eeddish violet 



Chlorodiaquotriammine 



(7) [CoCl(H20)2(NH3)3]X., ^r^^l isomers, one is violet and 



the other greyish indigo. 



/Q\ rn nuTT n^ /ATTT Mv Chlorotriaquodiammine 



(8) [CoCl(H.,0)3(NH3),]X., ^^^^^^.^ ^J^_ j^^^^^g,^ ^^1^^^ 



/n\ rr^ /-.i tt /-» /-kits \ iv Dichloraquotriammine 

 .(9) [Co C1,H,0 (XH3)3]X ^^^^^^^^ ^i^i^ (dichro-salt). 



According to the manner in which the chlorine atom- 

 coordinate to the central cobalt atom, there are two isomers in 

 this salt, one is green and tlie other gre3\ 



/irk\ rn n^ /tt /^n /xttt ^ nv Dichlorodiaquodiammine 

 (10) [CoCl,(H,0),(NH3),]X ^oi^aitic salt 



