18   31.0144691    
  1    0.00003   27.32839  0.4590898  0.0000002  0.8883899
  2  119.89700   27.51468 -0.2302684  0.4004974  0.8868925
  3  239.72701   27.43283 -0.2322525 -0.3978831  0.8875515
  4   53.98398   66.10660  0.5376192  0.7395345  0.4050363
  5  173.97279   66.13212 -0.9094258  0.0960210  0.4046290
  6  293.93805   66.00175  0.3706751 -0.8349779  0.4067086
  7  111.07854   72.49194 -0.3429868  0.8898626  0.3008400
  8  231.08238   72.53637 -0.5992468 -0.7421881  0.3001002
  9  351.14795   72.44138  0.9420528 -0.1467135  0.3016814
 10   23.83658  107.59268  0.8719206  0.3852279 -0.3022482
 11  143.81126  107.49924 -0.7697257  0.5631216 -0.3006932
 12  263.87909  107.46803 -0.1017094 -0.9484466 -0.3001737
 13   80.94791  113.97447  0.1437586  0.9023468 -0.4063297
 14  200.97603  113.98568 -0.8530999 -0.3270650 -0.4065084
 15  321.00974  113.80624  0.7111211 -0.5756539 -0.4036451
 16   15.15719  152.58983  0.4443423  0.1203687 -0.8877338
 17  135.35844  152.51030 -0.3284283  0.3243444 -0.8870939
 18  255.52818  152.37610 -0.1158716 -0.4489537 -0.8860103

6 dihedral
( 1)( 2)( 3)( 4)( 5)( 6)( 7)( 8)( 9)(10)(11)(12)(13)(14)(15)(16)(17)(18)
( 1 16)( 2 18)( 3 17)( 4 15)( 5 14)( 6 13)( 7 12)( 8 11)( 9 10)
( 1  3  2)( 4  6  5)( 7  9  8)(10 12 11)(13 15 14)(16 18 17)
( 1  2  3)( 4  5  6)( 7  8  9)(10 11 12)(13 14 15)(16 17 18)
( 1 17)( 2 16)( 3 18)( 4 13)( 5 15)( 6 14)( 7 10)( 8 12)( 9 11)
( 1 18)( 2 17)( 3 16)( 4 14)( 5 13)( 6 15)( 7 11)( 8 10)( 9 12)