75 CHERNYAEV 



at the Institute of General and Inorganic Chemistry of the 

 U.S.S.R. Academy of Sciences and in 1941 became its Director. 

 In addition, he was professor of Moscow Petroleum Institute 

 from 1935 to 1941. And in 1945 he was made professor at 

 Moscow University. Chernyaev was elected Corresponding 

 Member of the U.S.S.R. Academy of Sciences in 1933 and in 

 1943 Academician. In 1946 and 1952 he won Stalin Prizes. 



Chernyaev has investigated the chemistry of complex com- 

 pounds. In 1915 Chernyaev completed an investigation of 

 hydroxylamine compounds of divalent platinum. In 1926 Chern- 

 yaev published his work on the study of nitro compounds of 

 divalent platinum. Using these compounds he discovered trans- 

 influence. It is constituted by the fact that the dependence of 

 the reaction ability of any substitute in the internal sphere of a 

 complex compound depends upon the nature of the substitute 

 which is in contraposition to it. This phenomenon, associated 

 with his name, was found to be applicable to a series of com- 

 pounds of tetravalent platinum, palladium, rhodium, iridium and 

 cobalt. Using transinfluence, Chernyaev and his students synthe- 

 sized many complex compounds. Chernyaev discovered the 

 change in the sign of the rotation of a plane of polarization by 

 optically active amino compounds of tetravalent platinum during 

 their transformation into amido- (or imido-) compounds. He 

 studied the oxidation reaction of complex compounds of platinurti, 

 reduction of iridium, proved that the binding of the nitro group 

 with platinum takes place through nitrogen, and studied the heat 

 of reactions of complex compounds. A considerable number of 

 Chernyaev' s investigations are devoted to refining of platinum 

 metals. As a result he obtained platinum, palladium, gold and 

 rhodium in a spectrally pure state. 



As of 1961, Chernyaev was Chairman of the Commission for 

 Considering Works Submitted in Competition for the N. S. 

 Kurnakov Award. 



As of September 1962, Chernyaev, at his own request, was 

 relieved of the directorship of the U.S.S.R. Academy of Sciences 

 Institute of General and Inorganic Chemistry and resumed his 

 former position as Chief of the Section on Simple and Complex 

 Inorganic Compounds of this Institute. 

 Bibliography: 



Questions on chemistry of complex compounds. Uspekhi 

 Khim., 1936,1, ^9, 1169-1215. 



On the geometric isomerization of compounds of tetra- 

 valent platinum. Uspekhi Khim., 1947, 16, #4, 385-402. 



