Accuracy

formic acid, dimer r   1373 Formic acid, dimer (Geo)

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    #  Species Formula
  1363 1,3,5-Triazine-2,4,6(1H,3H,5H)-trioneC3H3N3O3
  1364 1,3,5-Trimethyl-s-triazine-2,4,6-trioneC6H9N3O3
  1365 2,4,6-Trimethoxy-s-triazineC6H9N3O3
  1366 Li(+)(H2O)4H8LiO4
  1367 Li(+)(H2O)4 (Geo)H8LiO4
  1368 Li(I)(H2O)4(+) (BADTUV10) (Geo)H8LiO4
  1369 Li(I)(H2O)4(+) (BADTUV10)H8LiO4
  1370 B(OH)4, anion (Geo)H4BO4
  1371 TetrahydroxydiboraneH4B2O4
  1372 Oxalic acidC2H2O4
  1373 Formic acid, dimer (Geo) C2H4O4
  1374 Formic acid, dimerC2H4O4
  1375 DioxybismethanolC2H6O4
  1376 (C2H4)BO4H2, anion (Geo)H6BC2O4
  1377 1,4-Dioxan-2,5-dioneC4H4O4
  1378 Dimethyl oxalateC4H6O4
  1379 1,3,5,7-TetroxaneC4H8O4
  1380 Dimethyl malonateC5H8O4
  1381 Ethylmalonic acidC5H8O4
  1382 Methylene diacetateC5H8O4
  1383 TetramethoxymethaneC5H12O4


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.
  
 SYMMETRY PM7
Formic acid, dimer
 <> <><> <O -- H> GR=PW91D GWT=3
 
  C     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  O     1.21443085 +1    0.0000000 +0    0.0000000 +0     1     0     0
  H     1.99289895 +1   95.4153635 +1    0.0000000 +0     1     2     0
  O     1.67064500 +1  139.3050274 +1    0.2229350 +1     3     1     2
  H     1.67064500 +0  125.3326285 +1   -0.1539079 +1     2     1     3
  O     1.01609466 +1   36.6671285 +1  179.8790712 +1     3     1     4
  H     1.09035814 +1  126.2947413 +1  179.9938628 +1     1     2     3
  C     1.21426903 +1  125.2831176 +1   -0.1945422 +1     4     3     1
  O     1.01611216 +1  153.1640024 +1 -179.9988265 +1     5     1     2
  H     1.09024008 +1  126.4001510 +1 -179.8445832 +1     8     4     3
 
   4  1    5