                                 <span class="stringliteral">&#39;3NI&#39;</span>,  <span class="comment"># nickel (iii) ion</span></div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;                                              <span class="stringliteral">&#39;IRI&#39;</span>,  <span class="comment"># iridium hexammine ion</span></div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;                                              <span class="strin