title: 2-[(5-Chloro-2-hy-droxy-benzyl-idene)amino]-3',6'-bis-(diethyl-amino)-spiro-[isoindoline-1,9'-xanthen]-3-one.
abstract: The title compound, C(35)H(35)ClN(4)O(3), resulted from a spiro-lactam ring closure of rhodamine B dye. The xanthene ring system is approximately planar [r.m.s. deviation = 0.050 (9) Å for the xanthene ring]. The dihedral angles formed by the spiro-lactam and 5-chloro-2-hy-droxy-benzene rings with the xanthene ring system are 87.9 (7) and 79.1 (7)°, respectively.
authors.affiliation: College of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan Province 461000, People's Republic of China.
authors.forename: Zhi-Hong
authors.initials: ZH
authors.lastname: Xu
authors.forename: Wei-Yun
authors.initials: WY
authors.lastname: Guo
authors.forename: Bo-Wei
authors.initials: BW
authors.lastname: Su
authors.forename: Xu-Ke
authors.initials: XK
authors.lastname: Shen
authors.forename: Feng-Ling
authors.initials: FL
authors.lastname: Yang