<html><head></head><body><div style="color:#000; background-color:#fff; font-family:標楷體, dfkai-sb;font-size:16px"><div id="yui_3_16_0_ym19_1_1509671166561_2307">Dear Peter Sir,</div><div id="yui_3_16_0_ym19_1_1509671166561_2415"><br></div><div id="yui_3_16_0_ym19_1_1509671166561_2416" dir="ltr">Do Si [S^23P^4] and Ge [4S^24P^2] are also an open shell case?</div><div id="yui_3_16_0_ym19_1_1509671166561_2449"><br></div><div id="yui_3_16_0_ym19_1_1509671166561_2424">Because my Si atomization energy is fluctuating without -sp switch after 55 scf cycles also. <br></div><div><br></div><div id="yui_3_16_0_ym19_1_1509671166561_10441"><br></div><div id="yui_3_16_0_ym19_1_1509671166561_10554"><br></div><div id="yui_3_16_0_ym19_1_1509671166561_10555">Sincerely</div><div id="yui_3_16_0_ym19_1_1509671166561_10735"><br></div><div id="yui_3_16_0_ym19_1_1509671166561_10736">Chin<br></div></div></body></html>