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     #     GUI   Heat of formation (Kcal/formula unit) Geometry        Species
                    Ref.        PM7     PM6-D3H4      PM7 PM6-D3H4 
  1947  (JSmol)              -1375.1      -1546.2           23.6       22.3   Sm Complex Sparkle (BUVWUK01) 
  1948  (JSmol)                -680.2        -971.4           12.1       13.9   Sm Complex Sparkle (CORKEZ) 
  1949  (JSmol)                  -35.1        -474.4           17.4       22.0   Sm Complex Sparkle (ICSD 409528) 
  1950  (JSmol)                -442.4        -721.3           17.4       24.9   Sm Complex Sparkle (KUYBAH) 
  1951  (JSmol)                -184.7        -576.9           12.5       14.9   Sm Complex Sparkle (QIPQOV) 
  1952  (JSmol)                  -59.9        -388.7           23.6       23.5   Sm Complex Sparkle (XAGVOQ) 
  1953  (JSmol)                -301.3        -418.2           21.5       18.4   Sm Complex Sparkle (XAXYAW) 
  1954  (JSmol)                -361.7        -514.0           26.0       20.4   Sm Complex Sparkle (YEYLAP)