Accuracy

as(oh)3   3987 As(OH)3

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    #  Species Formula
  3977 Triethylarsine (DFT)C6H15As
  3978 TriphenylarsineC18H15As
  3979 Arsenic nitrideNAs
  3980 AsH2-NH2H4NAs
  3981 AsH2-NH2 (Geo)H4NAs
  3982 As(III)C3 (CNMARS) (Geo)C3H6NAs
  3983 As(III)C3 (CNMARS)C3H6NAs
  3984 Arsenic tricyanide (Geo)C3N3As
  3985 As(V)C3O (ASOXCA) (Geo)C3H9OAs
  3986 As(V)C3O (ASOXCA)C3H9OAs
  3987 As(OH)3 H3O3As
  3988 As(OH)3 (Geo)H3O3As
  3989 Trimethyl arseniteC3H9O3As
  3990 As(V)O3C (ARSACP) (Geo)C6H7O3As
  3991 As(V)O3C (ARSACP)C6H7O3As
  3992 Triethyl arseniteC6H15O3As
  3993 Tri-n-propyl arseniteC9H21O3As
  3994 As(V)O4(-) (DAYQAV) (Geo)H2O4As
  3995 As(V)O4(-) (DAYQAV)H2O4As
  3996 As(V)O5 (HTOASP) (Geo)C4H9O5As
  3997 As(V)O5 (HTOASP)C4H9O5As


ΔHf: -130.6 kcal/mol,     REF: Estimated from DGauss results of DFT calculations, using the B88-PW91 functional and the DZVP basis set, in CAChe 6.0, Fujitsu Ltd, 2003.
  
 PM7
As(OH)3
 H=-130.6 HR=PW91D
 As     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  O     1.77617438 +1    0.0000000 +0    0.0000000 +0     1     0     0
  O     1.77679828 +1  101.9702573 +1    0.0000000 +0     1     2     0
  O     1.77791923 +1  101.4175029 +1 -103.9400187 +1     1     2     3
  H     0.94225252 +1  129.2999658 +1   56.4539298 +1     2     1     3
  H     0.94152152 +1  129.4698584 +1  -57.0098351 +1     3     1     2
  H     0.94069710 +1  129.5792564 +1   56.0060830 +1     4     1     2