A palladium complex formed from a solution containing bromide ion and pyridine, C5H5N (a good electron-pair donor), is found on elemental analysis to contain 37.6% bromine, 28.3% carbon, 6.60% nitrogen, and 2.37% hydrogen by mass. The compound is slightly soluble in several organic solvents; its solutions in water or alcohol do not conduct electricity. It is found experimentally to have a zero dipole moment. Part complete Write the formula of the compound, using brackets to denote the palladium and its coordination sphere. Express your answer as a chemical formula.