title: Bis(4-pyridylmeth-yl) hexa-nedioate.
abstract: The asymmetric unit of the title compound, C(18)H(20)N(2)O(4), contains one half-mol-ecule. The mol-ecule lies on an inversion centre and is roughly planar, the chains between the two pyridine rings being only slightly twisted, with torsion angles ranging from 170.9 (1) to 177.2 (1)°. Weak C-H⋯O hydrogen bonds result in the formation of a three-dimensional network.
authors.forename: Jin-Hui
authors.initials: JH
authors.lastname: Yang
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Zhang
authors.forename: Yan-Xue
authors.initials: YX
authors.lastname: Chen
authors.forename: Jian-Zhi
authors.initials: JZ
authors.lastname: Diao
authors.forename: Zheng
authors.initials: Z
authors.lastname: Peng