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     #     GUI   Heat of formation (Kcal/formula unit) Geometry        Species
                    Ref.        PM7     PM6-D3H4      PM7 PM6-D3H4 
  1985  (JSmol)                  204.3        -190.4           17.7       14.5   Ho Complex Sparkle (BAGBAN) 
  1986  (JSmol)                -496.5        -711.1           32.3       32.1   Ho Complex Sparkle (BEYSAZ) 
  1987  (JSmol)              -1329.5      -1503.7           18.5       16.1   Ho Complex Sparkle (BUVXOF01) 
  1988  (JSmol)                  208.0        -192.4           13.0       14.8   Ho Complex Sparkle (CAQFUV) 
  1989  (JSmol)                -782.8      -1128.6           11.9       15.4   Ho Complex Sparkle (ECOJEL) 
  1990  (JSmol)              -1057.4      -1206.1           36.7       37.9   Ho Complex Sparkle (HOESUL02) 
  1991  (JSmol)                      8.8        -397.2           26.7       29.8   Ho Complex Sparkle (ICSD 200096) 
  1992  (JSmol)                -256.2        -529.0           41.6       34.6   Ho Complex Sparkle (XEWVIE) 
  1993  (JSmol)                -830.6      -1269.4           20.7       26.2   Ho Complex Sparkle (ICSD 1421578)