PM7 Accuracy

biphenyl    323 Biphenyl

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    #  Species Formula
   313 3,3,4,4-TetramethylhexaneC10H22
   314 n-DecaneC10H22
   315 PentamethylbenzeneC11H16
   316 1,1,4-TrimethylcycloheptaneC11H22
   317 Hexyl cyclopentaneC11H22
   318 Pentyl cyclohexaneC11H22
   319 UndecaneC11H24
   320 AcenaphthyleneC12H8
   321 BiphenyleneC12H8
   322 AcenaphtheneC12H10
   323 Biphenyl C12H10
   324 Biphenyl, for torsion (Torsion angle) (Geo)C12H10
   325 HexamethylbenzeneC12H18
   326 HexylcyclohexaneC12H24
   327 n-DuodecaneC12H26
   328 Tri-isobutylboraneH27BC12
   329 Tri-s-butylboraneH27BC12
   330 TributylboraneH27BC12
   331 FluoreneC13H10
   332 o-Methyl bipheny (Torsion angle) (Geo)C13H12
   333 Tri-t-butylmethaneC13H28


DHf: 43.5 kcal/mol,     REF: J. O. Cox, G. Pilcher, "Thermochemistry of Organic and Organometallic Compounds," Academic Press, New York, N.Y., 1970.
  
 PM7
Biphenyl
 H=43.53,0.6 HR=C&P1970
  C     0.00000000  0    0.0000000  0    0.0000000  0     0     0     0
  C     1.39724065  1    0.0000000  0    0.0000000  0     1     0     0
  C     1.39731305  1  119.9793252  1    0.0000000  0     1     2     0
  C     1.39265974  1  119.9039399  1    0.1275897  1     2     1     3
  C     1.39267251  1  119.9076527  1    0.0593535  1     3     1     2
  C     1.39395505  1  120.0960288  1   -0.2081075  1     4     2     1
  C     1.46808306  1  120.0117638  1 -179.8986492  1     1     2     4
  C     1.39725787  1  120.0032133  1  -58.9367138  1     7     1     2
  C     1.39266138  1  119.9104368  1 -179.8700675  1     8     7     1
  C     1.39399388  1  120.1166077  1   -0.1369234  1     9     8     7
  C     1.39408043  1  119.9868782  1    0.0405917  1    10     9     8
  C     1.39724736  1  120.0351010  1  121.1287286  1     7     1     2
  H     1.08851196  1  119.8283884  1  179.7625405  1     2     1     3
  H     1.08849637  1  119.8346558  1  179.6991989  1     3     1     2
  H     1.08815384  1  119.8805948  1  179.7886600  1     4     2     1
  H     1.08816546  1  119.8757829  1  179.8164222  1     5     3     1
  H     1.08758601  1  120.0023057  1 -179.9265781  1     6     4     2
  H     1.08851993  1  119.8425730  1   -0.2261140  1     8     7     1
  H     1.08817086  1  119.8704443  1  179.8285940  1     9     8     7
  H     1.08753124  1  120.0159925  1 -179.9540213  1    10     9     8
  H     1.08814621  1  119.9994347  1 -179.8879945  1    11    10     9
  H     1.08853114  1  119.8315068  1   -0.3356646  1    12     7     1