One buckingham corresponds to the quadrupole moment resulting from two opposing dipole moments of equal magnitude of 1 debye that are separated by a distance of 1 ångström, a typical bond length. This is analogous to the debye for the dipole moment of two opposing charges of 10 statcoulomb separated by 1 ångström, and the name Buckingham for the unit was suggested by Peter Debye in 1963 in honour of Buckingham.