Open Access3,7‐Bis(dimethylamino)phenothiazin‐5‐ium nitrate dihydrate
Author(s) -
Kavitha Savaridasson Jose,
Raj Mani Mohan,
Panchanatheswaran Krishnaswamy,
Lynch Daniel E.
Publication year - 2004
Publication title -
acta crystallographica section e
Language(s) - English
Resource type - Journals
ISSN - 1600-5368
DOI - 10.1107/s1600536804017222
Subject(s) - nitrate , chemistry , cationic polymerization , chloride , hydrogen bond , silver nitrate , molar ratio , nuclear chemistry , medicinal chemistry , inorganic chemistry , polymer chemistry , molecule , organic chemistry , catalysis
The reaction of 3,7‐bis(dimethylamino)phenothiazin‐5‐ium chloride pentahydrate (methylene blue) with silver nitrate in a 1:2 molar ratio in water yielded the title compound, C 16 H 18 N 3 S + ·NO 3 − ·2H 2 O, as one of the products. The cationic dye molecules are planar and stacked in an antiparallel fashion, exhibiting π–π associations at a distance of 3.7040 (18) Å. The nitrate anion and the two water molecules are involved in a hydrogen‐bonding network that also includes the phenothiazinium N atom.