structure SPC/E TIP3P TIP4P/2005 q-TIP4P/F TIP4P/Ice Ih 0.9566399333 0.7666353667 0.9695208333 0.8334829 1.072753317 IX 0.9341963333 0.7671883583 0.91511235 0.78771595 1.0112486 II 0.923771875 0.7747493167 0.8695537167 0.7477341667 0.959945375 XIII 0.8002558071 0.6966967464 0.8449475321 0.7270652036 0.9520838393 XIV 0.8626578583 0.7145355417 0.87516005 0.7558152917 0.9684006333 XV 0.84041087 0.706620658 0.83731298 0.71983814 0.92575096 VIII 0.6735732888 0.5898147925 0.6721181263 0.5913499763 0.7405975938