Time stamp: Thu Mar 11 08:55:57 2021 HoF Errors: < 2 kcal/mol   < 5 kcal/mol   < 10 kcal/mol   < 20 kcal/mol   < 50 kcal/mol.   Geometries: 0: good, 100: bad

Comparison of Structures of 39 Tungsten-containing Solids predicted using PM7 and PM6-D3H4 with X-Ray

(All solids - Periodic Table - Home - Accuracy - Manual)

Average unsigned error in PM7 HoF: 21.91 kcal/mol, for 14 solids
Average unsigned error in PM6-D3H4 HoF: 49.69 kcal/mol, for 12 solids

     #     GUI   Heat of formation (Kcal/formula unit) Geometry        Species
                    Ref.        PM7     PM6-D3H4      PM7 PM6-D3H4 
  2089  (JSmol)              -241.3      -62.4       18.7   25.5   (Diethyl ether)-lithium heptamethyl-tungsten (RETNEJ)
  2090  (JSmol)              -572.8     -559.9       24.7   22.8   18-Crown-6 hydroxonium clathrate aqua-oxo-tetrabromo-tungsten (NANQEY)
  2091  (JSmol)  -264.1      -270.1     -172.8       28.0   65.7   Copper(ii) tungstate (CuWO4) (ICSD 84558)
  2092  (JSmol)              -622.6     -608.4       13.7   22.8   Dichloro-oxo-(N,N',N''-trimethyl-1,4,7-triazacyclononane-N,N',N'')-tungsten(v) hexafluorophosphate (DIBVEP)
  2093  (JSmol)              -406.2     -438.7       54.9   49.6   Dipotassium tungstate (K2WO4)
  2094  (JSmol)  -369.2      -344.0     -439.1       28.0   56.4   Disodium tungstate (Na2WO4)
  2095  (JSmol)  -276.1      -282.9     -398.2       13.5   23.3   Ferberite (FeWO4)
  2096  (JSmol)  -362.3      -346.2     -265.1       18.2   36.5   Magnesium tungstate (MgWO4)
  2097  (JSmol)  -269.7      -261.9     -183.9       14.3   59.3   Nickel(ii) tungstate (NiWO4) (ICSD 15852)
  2098  (JSmol)              -403.2     -358.1       32.4   67.1   Scheelite (CaWO4)
  2099  (JSmol)              -388.8     -431.9       24.2   70.7   Strontium tungstate (SrWO4) (ICSD 155425)
  2100  (JSmol)              -219.9     -217.0       13.2   19.5   Tetramethylammonium chloro-pentacarbonyl-tungsten (CPECOW)
  2101  (JSmol)     0.0       -26.0        -.-       53.7    -.-   Tungsten (W) (ICSD 43667) bcc
  2102  (JSmol)  -186.5      -193.6     -197.0       22.1   23.2   Tungsten chloride oxide (WO2Cl2) (ICSD 28510)
  2103  (JSmol)   -61.5      -139.1        -.-       51.2    -.-   Tungsten dichloride (WCl2) (ICSD 542032)
  2104  (JSmol)  -140.9      -192.7     -217.2       45.4   20.4   Tungsten dioxide (WO2) (ICSD 80829)
  2105  (JSmol)  -160.4      -184.4     -167.7       43.1   56.4   Tungsten oxide tetrachloride (WOCl4) (ICSD 25519)
  2106  (JSmol)  -336.3      -327.1     -338.1       74.6   31.2   Tungsten oxide tetrafluoride (WOF4) (ICSD 10393)
  2107  (JSmol)              -103.5        -.-       39.2    -.-   Tungsten(iii) tribromide (WBr3)
  2108  (JSmol)   -83.3      -106.4      -74.7       15.9    7.6   Tungsten(vi) hexabromide (WBr6) (ICSD 62048)
  2109  (JSmol)  -144.0      -121.9     -129.3       30.4   63.7   Tungsten(vi) hexachloride (WCl6) (ICSD 2365)
  2110  (JSmol)              -378.9     -402.4       73.1   24.9   Tungsten(vi) hexafluoride (WF6) (ICSD 4027)
  2111  (JSmol)              -292.9     -265.7       22.9   41.5   Tungsten(vi) oxide hydrate (H2WO4) (ICSD 201806)
  2112  (JSmol)  -201.4      -197.3     -190.6       17.9   26.7   Tungsten(vi) trioxide (WO3)
  2113  (JSmol)              -290.5     -265.9       21.4   40.2   Tungstic acid (tungstite) (H2WO4) (ICSD 2110209)
  2114  (JSmol)              -290.1     -240.2       11.6   23.9   Zinc tungstate (ZnWO4)
  2115  (JSmol)              -123.5     -145.8        8.3   24.4   trans Ammonium tetrabromo-bis(4-methylpyridyl)-tungsten(iii) 4-methylpyridine ammonia solvate (JEPCUC)
  2116  (JSmol)              -185.2        -.-       80.9    -.-   Silver tungstate (Ag2WO4) (ICSD 1802521)
  2117  (JSmol)              -135.7     -138.6       11.2   16.0   Tricarbonyl-(h5-(2-(trimethylammonio)ethyl)cyclopentadienyl)-iodo-tungsten(ii) iodide (LIMZIR)
  2118  (JSmol)              -716.2     -762.7       37.6   48.3   Cesium hexafluoro-2,2,2-trifluoroethoxy-tungsten(vi) acetonitrile solvate (JONCAQ)
  2119  (JSmol)              -379.5     -578.8        7.9   71.8   Barium tungstate (BaWO4) (ICSD 23702)
  2120  (JSmol)              -889.8     -986.7       31.8   23.8   (mu-2-Oxo)-tetrakis(h5-cyclopentadienyl)-dimethyl-di-tungsten bis(hexafluorophosphate) (ZISMAP)
  2121  (JSmol)              -713.3     -646.5        4.9   17.2   ZrW2O8
  2122  (JSmol)              -566.7     -439.1       19.9   25.3   bis(Acetonitrile)-fluoro-tetramethyl-tungsten hexafluoro-tungsten (RETNAF)
  2123  (JSmol)              -694.7     -788.4       31.6   24.6   bis(Dichloro-tungstocenium) hexakis(mu-2-fluoro)-dodecakisfluoro-tetra-tungsten (JUTPET)
  2124  (JSmol)             -1477.9    -1152.6       19.5   45.9   Dodecahydroxo-dodecatungstate henicosahydrate (W4O21H18)
  2125  (JSmol)             -3312.1    -2633.5        5.2   24.8   Keggin Dodecatungstophosphoric acid hexahydrate ((H5 O2)3 P W12 O40)
  2359  (JSmol)              -306.0     -264.5       42.7   66.1   Lead tungstate (PbWO4) (ICSD 16189)
  2360  (JSmol)              -480.0     -266.6       64.9   48.3   Lead tungstate (PbWO4) (ICSD 81550)