Sulfur and Nitrogen Derivatives

In addition to mercuric sulfide itself and salts containing the HgS -ion (formed by treatment of HgS with a solution containing excess sulfide ion), four types of organic sulfur-mercury compounds might be noted (1) mercaptides of the type (RS-—)2Hg (2) halomercuri-mercapiides ( half halide, half mereaptide ) of tyue X—Hg—SR (3) sulfide adducts of the 

Similarly, mercury-nitrogen compounds may resemble either salts or acid-base type adducts. Saltlike compounds of this type include the familiar white amino compound, Cl—Hg—NH2, and analogous compounds formed from organic amines, for example, Cl—Hg—NHCH3 organic amides and imides also are known to form mercury derivatives, descriptions of which appear in more comprehensive works. 

Species containing mercury-nitrogen bonds, whether adducts or salts, are generally unstable in acid solutions, such bonds being broken by hydrogen ion to form the conjugate acids of the parent nitrogen compounds. With respect to stability in aqueous environment, therefore, the Hg—N bond lies between the Hg—F and Hg—O bonds on one hand and the Hg—C, Hg—S, Hg—I, and Hg—Br bonds on the other, 

The first organometallic compound of any kind prepared was diethyl-zinc, (C2Hs) Zn and for many years organozinc compounds were important intermediates in organic preparations. Today, except for a few 

Conductivity studies show that organoalkali compounds, such as ethyllithium, C2H5—Li, are good conductors when dissolved in diethyl-zinc. Ionization apparently occurs, and, since the formation of ethide ions, C2H7, is unlikely, the reaction may be best represented as a sbl-volysis by the acidic zinc compound  

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