This paper deals with the magnetic measurements on molecular compounds@IAC

Bhatnagar, SS

Nevgi, MB

Tuli, G

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M agnectic Measurements on Molecular Compounds in Solution with a Modified Form of Decker's Balance* (Rcceivcd for pzl blication, Septemt ber 24, 1338.) An attempt bas been made to study fbe stability of molecular com- p o u ~ d a  in mlution from magnetic standpomt, by measuring the  diamagnetic susceptibility of some picrates in tbe =lid atate and in M O ~ U ~ ~ O ~ S  in extra pure benzene over a wide range of conceoaatinm. It is found that the susceptibility of the compounds is lowered in w1utioa.c a ~ d  the value approaches that given by the law of mixtures. from which it is mncluded that the molecules are dissociated in solutions. In  a paper just communicated to this journal it has k n  shown by Bhatnagar, Verma, and Hapus that the magnetic susceptibilities of molecular compounds in the solid aondit ions are quite different from the additire misture value= of their constituents. This difference has lee11 Further psrtis l l~ attri-  buted to the formation of a co-ordinate linkage. Sothing is known regarding the nature of magnetic hhariour of these subst.ance8 when they exist. in the disso1vc.d state. The stability of m e l e c ~ ~ l ~ r  t o m p n t ~ d s  in solution has h n  the subjecb of keen investigation. The molemlar ~ ~ m ~ ~ ~ u n d s  

Magnectic Measurements on Molecular Compounds in Solution with a Modified Form of Decker's Balance

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