title: Bis(2-{2-[2-(benzyl-carbamo-yl)phen-oxy]acetamido}-eth-yl)ammonium nitrate ethanol disolvate.
abstract: In the title compound, C(36)H(40)N(5)O(6) (+)·NO(3) (-)·2C(2)H(5)OH, the nitrate anion is disordered over the two orientations of equal occupancy while the solvent mol-ecule reveals large displacement parameters. The cation is formed by protonation of the N atom of a secondary amine in the middle of the flexible chain and the whole compound has crystallographically imposed C-2 symmetry with the crystallographic b axis. An O atom of the nitrate anion links the acidic H atoms of the cation via N-H⋯O hydrogen bonding. In addition, neighbouring cations are connected by inter-molecular N-H⋯O hydrogen bonds and π-π inter-actions between the benzamide groups of the cations [centroid-centroid distance = 4.000 (3) Å], forming a chain along [001]. The ethanol solvent mol-ecules are arranged on the side of the chain through O-H⋯O hydrogen bonds.
authors.affiliation: Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Jiaji
authors.initials: J
authors.lastname: Liu
authors.forename: Xiaoliang
authors.initials: X
authors.lastname: Tang
authors.forename: Zhengdan
authors.initials: Z
authors.lastname: Lu
authors.forename: Guolin
authors.initials: G
authors.lastname: Zhang
authors.forename: Weisheng
authors.initials: W
authors.lastname: Liu