Hello everyone,
I have recently observed that isonicotinamide (pyridine-4-carboxamide) and nicotinamide (pyridine-3-carboxamide) collect at different electrode when a strong electric field is imposed in a pure suspension of each compound. Isonicotinamide collected on the anode and nicotinamide collected on the cathode. According to this, isonicotinamide and nicotinamide would be positively and negatively charged, although the net charge is zero.
Is it possible to measure the charge of this type of molecules somehow? If so, what do you think is the best way to prove that they are charged?
Thanks.
Dear Carlos,
welcome,
May be the simplest method to measure the charge on a molecule by letting its material fill the space between two metallic electrodes with an area of one cm^2 and measure its polarization P. It is so that Q= CV +P where P is the polarization
it is equal the polarization charge because of the induced charges on the molecules of the material. If the number of molecules per unit area Ns, then the charge per molecule will be P/Ns.
Best wishes
Please look at the book
Fundamentals of Physics
by
David Halliday
from
University of Pittsburgh
and
Robert Resnick