Citation: Rajakannu, Palanisamy; Howlader, Rana; Kalita, Alok Ch.; Butcher, Raymond J.; Murugavel, Ramaswamy (2015). Role of 4,4′-bipyridine versus longer spacers 4,4′-azobipyridine, 1,2-bis(4-pyridyl)ethylene, and 1,2-bis(pyridin-3-ylmethylene)hydrazine in the formation of thermally labile metallophosphate coordination polymers. Inorganic Chemistry Frontiers, 2, pp. 55-.