title: N,N'-Bis(1-ethynylcyclo-hexyl)-pyro-mellitic diimide.
abstract: The title compound, C(26)H(24)N(2)O(4), consists of a symmetrical mol-ecule that lies across a crystallographic inversion centre. The C-C distance in the triple bond is 1.188 (2) Å and there is also an inter-molecular C-H⋯O contact from a terminal acetyl-ene C-H to one of the dimiide O atoms [3.4349 (19) Å].
authors.forename: Chenaimwoyo A
authors.initials: CA
authors.lastname: Gondo
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Lynch
authors.forename: Darren G
authors.initials: DG
authors.lastname: Hamilton