title: (R)-2-{2-[(S)-(2'-Benzo-yloxy-1,1'-binaphthyl-2-yl)oxycarbonyl-amino]-3-phenylpropanamido-meth-yl}pyridinium picrate acetone solvate.
abstract: In the crystal structure of the title compound, C(43)H(34)N(3)O(5) (+)·C(6)H(2)N(3)O(7) (-)·C(3)H(6)O, the large dimension and shape of the cation are responsible for the elongation of the ortho-rhom-bic unit cell. The ions and acetone mol-ecules are linked together by a system of hydrogen bonds involving an inter-molecular hydrogen bond between one N atom of the cation and the O atom of acetone and two inter-molecular hydrogen bonds between the cation N atoms and the O atoms of the picrate anion. No intra-molecular hydrogen bonds exist in the structure. The dihedral angle between the two naphthalene ring systems is 76.16 (13)°. The chiral C atom has a known R configuration, but this cannot be confirmed from this X-ray analysis.
authors.forename: Ludvík
authors.initials: L
authors.lastname: Streinz
authors.forename: Petr
authors.initials: P
authors.lastname: Hartvich
authors.forename: Jan
authors.initials: J
authors.lastname: Ondráček
authors.forename: Petr
authors.initials: P
authors.lastname: Simek
authors.forename: Karla
authors.initials: K
authors.lastname: Fejfarová
authors.forename: Michal
authors.initials: M
authors.lastname: Dušek