title: Dimethyl 2,2-bis-(2-cyano-ethyl)malonate.
abstract: The asymmetric unit of the title compound, C(11)H(14)N(2)O(4), contains one half-mol-ecule; a twofold rotation axis passes through the central C atom. Inter-molecular C-H⋯N hydrogen bonds link the mol-ecules into a one-dimensional supra-molecular structure.
authors.affiliation: Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China.
authors.forename: Guo-Wei
authors.initials: GW
authors.lastname: Wang
authors.forename: Ling-Hua
authors.initials: LH
authors.lastname: Zhuang
authors.forename: Wen-Yuan
authors.initials: WY
authors.lastname: Wu
authors.forename: Jin-Tang
authors.initials: JT
authors.lastname: Wang