Compound Name: Sodium 1,2-benzisothiazol-3(2H)-onate 1,1-dioxide hydrate
Formula: Na1 1+,C7 H4 N1 O3 S1 1-,1.875(H2 O1)
Reference: R. Banerjee, P. M. Bhatt, M. T. Kirchner, G. R. Desiraju, Angew. Chem., Int. Ed., 2005, 44, 2515
Notes:Structure consists of "regular" and "irregular" regions held together by hydrogen bonds and Na···O interactions. The asymmetric unit contains 16 saccarinates (15 ordered and one disordered over two sites), 16 sodium ions (13 ordered and 3 disordered over two sites each) and 30 water molecules. 26 water molecules are ordered and all but one hydrogen atoms of these ordered water molecules were found from the Fourier map. The remaining four water molecules are disordered over two sites each. While the water oxygen atoms could be assigned with ease, only 1/4 of the hydrogen atoms could be found from the Fourier map.Also reported at same time by: P. Naumov, G. Jovanovski, O. Grupce, B. Kaitner, A. D. Rae, and S. W. Ng, Angew. Chem., Int. Ed., 2005, 44, 1251