Organic compounds, diamagnetic susceptibilities

According to P. Pascal,0 fluorine is diamagnetic the specific magnetic susceptibility is —3447 X10 j and the atomic susceptibilitv calculated from the additive law of mixtures for organic compounds is —63X10-1. Ionic fluorine is univalent and negative. The decomposition voltage required to separate this element from its compounds is 1 75 volts.7 The ionic velocity (transport number) 8 of fluorine ions at 18° is 46 6, and 52-5 at 25° with a temp, coeff. of 0 0238. 

In a series of comprehensive magnetochcmical investigations, Pascal (501,602) found that the molecular susceptibility of diamagnetic, organic compounds can be closely represented by... 

The diamagnetic properties of homologous series of organic compounds were first investigated by Henricksen (1888), who called attention to the additive character of the magnetic susceptibility per gram molecule. 

Pascal has attempted to account for the diamagnetic susceptibility of organic compounds by considering it as an additive quantity in a similar manner to induced electric polarization. The data show that the addition of the same group to different molecules often changes the diamagnetic... 

Estrada, E. (1998a). Modelling the Diamagnetic Susceptibility of Organic Compounds by a Sub-Structural Graph-Theoretical Approach. J.Chem.Soc.Faraday Trans., 94,1407-1410. 

Estrada, E. (1998a) Modelling the diamagnetic susceptibility of organic compounds by a sub-structural graph-theoretical approach./. Chem. Soc. Faraday Trans., 94, 1407-1410. 

This table gives values of the diamagnetic susceptibility for about 400 common organic compounds. All values refer to room temperature and atmospheric pressure and to the physical form... 

DIAMAGNETIC SUSCEPTIBILITY OF SELECTED ORGANIC COMPOUNDS (continued)... 

If the diamagnetic behavior of matter could be completely explained by local currents around the nuclei, and if the diamagnetic susceptibility of the different nuclei of the periodic table were known, the susceptibility of molecular compounds consisting of different elements would be the sum of the individual contributions, and could be easily predicted. As early as 1919, Pascal [23], and later Pacault [24] and Haberditzl [25], published simple increment systems to calculate diamagnetic susceptibilities of molecules. The increment system is quite accurate for most organic and inorganic compounds, with a few exceptions. 

Most biological objects are diamagnetic. Water and organic compounds possess susceptibility factors X of the order of — 4 x 10 . In liquids, this... 

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