title: 4-(1H-Pyrrolo-[2,3-b]pyridin-2-yl)pyridine.
abstract: The asymmetric unit of the title compound, C12H9N3, contains two independent mol-ecules in which the dihedral angle between the pyridine and aza-indole rings are 8.23 (6) and 9.89 (2)°. In the crystal, both types of mol-ecule are connected by pairs of N-H-N hydrogen bonds into inversion dimers.
authors.affiliation: Cardinal Tien College of Healthcare & Management, Taipei, Taiwan 231, Republic of China.
authors.forename: Ping-Hsin
authors.initials: PH
authors.lastname: Huang
authors.forename: Yuh-Sheng
authors.initials: YS
authors.lastname: Wen
authors.forename: Jiun-Yi
authors.initials: JY
authors.lastname: Shen