| Popis: |
The crystal structure of 8-hydroxy-7-iodoquinoline-5-sulfonic acid–urea–water, C9H6INO4S·CH4N2O·H2O, shows the zwitterionic (quinoline–sulfonate group) ferron molecule lying in a crystallographic mirror plane which related two of the sulfonate O atoms. Both the urea and the water molecule lie across the same plane and are inter-associated with the ferron molecules both within and between the planes by extensive hydrogen bonding, involving most available donor and acceptor sites on all three molecules. This includes a cyclic R22(8) sulfonate–urea association. The result is a three-dimensional layered structure. |
