摘要:
A new coordination polymer [Pb(2,2'-Bipy)(NO3)(2)(H2O)] (n) has been successfully synthesized and characterized (where 2,2'-Bipy = 2,2'-bipyridine). The crystal structure of the polymer was determined by single-crystal X-ray diffraction, crystallizing in the monoclinic crystal system, space group P2(1)/n with unit cell parameters: a = 7.1673(5), b = 9.8706(6), c = 19.1825(12) ; beta = 90.0780(10)A degrees; V = 1357.08(15) (3), and Z = 16. The Pb atom was six-coordinated with N(1) and N(2) from 2,2'-Bipy, O(2), O(3), and O(6) in nitrate; O(1) from coordinated water, forming a slightly distorted octahedral geometry. The structure units aggregate together to give birth to the infinite 1D chains via bridged nitrate, and 2D networks and three-dimensional frameworks were obtained through hydrogen bonding and pi-pi-stacking interaction among aromatic rings, respectively.