title: trans-Iodido(pyrazinyl-κC(2))bis-(triphenyl-phosphane-κP)palladium(II).
abstract: There are two independent mol-ecules with similar configurations in the asymmetric unit of the title complex, [Pd(C(4)H(3)N(2))I(C(18)H(15)P)(2)]. In each mol-ecule, the geometry around the Pd atom is distorted square-planar, with the Pd atom displaced by 0.0549 (12) and 0.0734 (13) Å from the least-squares plane of the I-P-P-C atoms. The PPh(3) ligands are in trans positions, with P-Pd-P angles of 173.12 (4) and 170.29 (4)°, while the pyrazinyl ligands and I atoms, also trans to each other, form C-Pd-I angles of 179.38 (12) and 178.44 (12)°. In the crystal, C-H⋯π inter-actions occur, resulting in a three-dimensional supramolecular architecture.
authors.affiliation: College of Environmental Sciences and Engineering, Peking University, Beijing 100871,  People's Republic of China.
authors.forename: Yao-Jen
authors.initials: YJ
authors.lastname: Tu
authors.forename: Hsiao-Fen
authors.initials: HF
authors.lastname: Wang
authors.forename: Gene-Hsiang
authors.initials: GH
authors.lastname: Lee
authors.forename: Kuang-Hway
authors.initials: KH
authors.lastname: Yih
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Tang