Tetraiodosilane (SiI4) I4Si1(cr,l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 100 200 298.15 108.035 258.153 258.153 0. -189.535 -191.637 33.574 300 108.198 258.822 258.155 0.200 -189.574 -191.650 33.369 393.650 116.388 289.279 262.056 10.716 CRYSTAL <--> LIQUID 393.650 163.744 339.234 262.056 30.381 TRANSITION 400 164.004 341.856 263.302 31.422 -203.750 -191.230 24.972 500 168.134 378.897 282.839 48.029 -285.814 -180.287 18.834 600 172.264 409.916 301.502 65.049 -278.678 -159.847 13.916 700 176.393 436.781 318.950 82.481 -271.228 -140.627 10.494