title: Crystal structure of 1-ethyl-5-iodo-indolin-2-one.
abstract: In the title indolinone derivative, C10H10INO, all the non-H atoms, except the terminal methyl C atom, are almost coplanar. The mol-ecules are arranged into columns extending along the a-axis direction and inter-act with the mol-ecules in adjacent columns via C-H⋯O hydrogen bonds [H⋯O distance = 2.57 (3) Å] and I⋯I short contacts of 3.8986 (3) Å. A one-dimensional zigzag iodine chain along the a axis is apparent between two neighbouring columns.
authors.affiliation: School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China.
authors.forename: Man
authors.initials: M
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.
authors.forename: Yu-Xiang
authors.initials: YX
authors.lastname: Shen
authors.affiliation: State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Fang
authors.affiliation: School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China.
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.affiliation: Binzhou Key Laboratory of Material Chemistry, Department of Chemical Engineering, Binzhou University, Binzhou 256603, People's Republic of China.
authors.forename: Da-Zhi
authors.initials: DZ
authors.lastname: Li
keywords: crystal structure; dipole moment; hydrogen bonding; indolinone derivatives; inter­molecular inter­actions