title: Zwitterionic (4-benzyl-piperidinium-1-yl-meth-yl)phospho-nate.
abstract: The title compound, C(13)H(20)NO(3)P, exists as a zwitterion: the phospho-nic acid group has transferred its H atom to the amino group. The piperidine ring adopts a chair conformation. Mol-ecules are linked via hydrogen bonding to form a linear chain.
authors.forename: Saeed
authors.initials: S
authors.lastname: Dehghanpour
authors.forename: Ali
authors.initials: A
authors.lastname: Mahmoudi
authors.forename: Mehdi
authors.initials: M
authors.lastname: Khalaj