Research Article: (Z)-3′,6′-Bis(diethyl­amino)-2-(4-oxopent-2-en-2-yl­amino)­spiro­[isoindoline-1,9′-xanthen]-3-one

Date Published: July 01, 2012

Publisher: International Union of Crystallography

Author(s): Chang-Bin Guo, Ri-Cai He, Ai-Min Li.

http://doi.org/10.1107/S1600536812027602

Abstract

In the title compound, C33H38N4O3, the mean planes of the 9H-xanthene unit and spiro­lactam (nine-atom) core are almost mutually perpendicular at 87.26 (6)°. Intra­molecular N—H⋯O and C—H⋯N inter­actions influence the 4-oxo­pent-2-en-2-yl­amino conformation. In the crystal, weak C—H⋯O hydrogen bonds link the mol­ecules into chains along [001].

Partial Text

For the use of Rhodamine B derivatives as fluorescent chemosensors, see: Zhang et al. (2007 ▶); Soh et al. (2007 ▶). For a related structure, see: Xiang et al. (2006 ▶).

Source:

http://doi.org/10.1107/S1600536812027602