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     #     GUI   Heat of formation (Kcal/formula unit) Geometry        Species
                    Ref.        PM7     PM6-D3H4      PM7 PM6-D3H4 
  1939  (JSmol)                    40.4        -307.1           33.7       36.3   Nd Complex Sparkle (BILSIY) 
  1940  (JSmol)              -1361.5      -1532.6           13.8       16.8   Nd Complex Sparkle (BUVWOE01) 
  1941  (JSmol)                -256.8        -617.2           29.2       40.3   Nd Complex Sparkle (ICSD 37181) 
  1942  (JSmol)                      9.4        -527.0           21.3       20.8   Nd Complex Sparkle (ICSD 411290) 
  1943  (JSmol)                -317.1        -654.1           18.7       22.2   Nd Complex Sparkle (NATPAZ01) 
  1944  (JSmol)                -204.5        -226.6           25.9       19.9   Nd Complex Sparkle (QAYWOC) 
  1945  (JSmol)                  511.1              3.5           24.3       27.9   Nd Complex Sparkle (QEBJIQ) 
  1946  (JSmol)                  479.2            55.1           15.6       19.9   Nd Complex Sparkle (XONYII)