C<sub>4</sub>H<sub>4</sub>Ag<sub>2</sub>O<sub>4</sub>S,
<i>M&nbsp;</i>=363.88,
monoclinic,
<!--<i>a</i>&nbsp;= 5.1945(2), -->
<!--<i>b</i>&nbsp;= 20.3339(9), -->
<!--<i>c</i>&nbsp;= 6.6668(3), -->
<i>a</i>&nbsp;= 5.1945(2)&nbsp;&Aring;, <i>b</i>&nbsp;= 20.3339(9)&nbsp;&Aring;, <i>c</i>&nbsp;= 6.6668(3)&nbsp;&Aring;, <i>&beta;</i>&nbsp;= 109.095(5)&deg;,
<i>U&nbsp;</i>= 665.43(6)&nbsp;&Aring;<sup>3</sup>,
<i>T</i>&nbsp;= 120.0,
space group P2<sub>1</sub>/c (no. 14),
<i>Z</i>&nbsp;= 4,
&#956;(Mo K&alpha;)&nbsp;= 6.149,
6931 reflections measured,
1612 unique (<i>R</i><sub>int</sub>&nbsp;= 0.0302) which were used in all calculations.
The final <i>wR</i>(<i>F</i><sub>2</sub>) was 0.061963 (all data).