                 <span class="stringliteral">&#39;ND4&#39;</span>,  <span class="comment"># ammonium cation with d</span></div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;                                              <span class="stringliteral">&#39;BRO&#39;</span>,  <span class="comment"># bromo group</span></div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;                                              <span class="stringliteral">&#39;KR&#3