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All results from a given calculation for C6H8 (Bicyclo[2.1.1]hex-2-ene)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-232.694491
Energy at 298.15K-232.703996
HF Energy-231.825992
Nuclear repulsion energy230.970625
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3274 3111 8.54      
2 A1 3168 3010 45.95      
3 A1 3160 3003 2.71      
4 A1 3087 2933 33.37      
5 A1 1580 1501 1.06      
6 A1 1531 1454 0.10      
7 A1 1280 1216 3.12      
8 A1 1148 1090 1.14      
9 A1 1071 1018 0.19      
10 A1 1007 956 0.11      
11 A1 978 929 0.00      
12 A1 862 819 1.76      
13 A1 540 513 0.19      
14 A2 1237 1175 0.00      
15 A2 1115 1060 0.00      
16 A2 1076 1023 0.00      
17 A2 880 836 0.00      
18 A2 865 822 0.00      
19 A2 538 511 0.00      
20 B1 3162 3005 24.40      
21 B1 3078 2925 55.46      
22 B1 1498 1423 2.08      
23 B1 1231 1170 3.15      
24 B1 1014 964 1.73      
25 B1 842 800 3.58      
26 B1 663 630 47.14      
27 B1 450 428 10.03      
28 B2 3248 3086 3.74      
29 B2 3158 3001 73.32      
30 B2 1340 1273 14.42      
31 B2 1261 1198 1.77      
32 B2 1238 1176 9.12      
33 B2 1115 1059 3.26      
34 B2 931 885 0.36      
35 B2 866 823 6.68      
36 B2 737 700 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 27112.3 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 25762.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/6-311G**
ABC
0.19465 0.15722 0.14349

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.675 1.210
C2 0.000 -0.675 1.210
C3 0.000 -1.021 -0.280
C4 0.000 1.021 -0.280
C5 1.062 0.000 -0.805
C6 -1.062 0.000 -0.805
H7 0.000 1.372 2.039
H8 0.000 -1.372 2.039
H9 0.000 -2.073 -0.573
H10 0.000 2.073 -0.573
H11 2.040 0.000 -0.314
H12 -2.040 0.000 -0.314
H13 -1.155 0.000 -1.897
H14 1.155 0.000 -1.897

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.35032.25801.52972.37602.37601.08312.20863.27572.26552.63462.63463.38323.3832
C21.35031.52972.25802.37602.37602.20861.08312.26553.27572.63462.63463.38323.3832
C32.25801.52972.04271.56461.56463.33272.34561.09143.10802.28172.28172.23462.2346
C41.52972.25802.04271.56461.56462.34563.33273.10801.09142.28172.28172.23462.2346
C52.37602.37601.56461.56462.12503.33183.33182.34072.34071.09393.14112.47231.0960
C62.37602.37601.56461.56462.12503.33183.33182.34072.34073.14111.09391.09602.4723
H71.08312.20863.33272.34563.33183.33182.74384.32312.70463.40333.40334.32584.3258
H82.20861.08312.34563.33273.33183.33182.74382.70464.32313.40333.40334.32584.3258
H93.27572.26551.09143.10802.34072.34074.32312.70464.14552.91982.91982.71752.7175
H102.26553.27573.10801.09142.34072.34072.70464.32314.14552.91982.91982.71752.7175
H112.63462.63462.28172.28171.09393.14113.40333.40332.91982.91984.08013.56611.8134
H122.63462.63462.28172.28173.14111.09393.40333.40332.91982.91984.08011.81343.5661
H133.38323.38322.23462.23462.47231.09604.32584.32582.71752.71753.56611.81342.3110
H143.38323.38322.23462.23461.09602.47234.32584.32582.71752.71751.81343.56612.3110

picture of Bicyclo[2.1.1]hex-2-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 103.081 C1 C2 H8 130.040
C1 C4 C5 100.321 C1 C4 C6 100.321
C1 C4 H10 118.655 C2 C1 C4 103.081
C2 C1 H7 130.040 C2 C3 C5 100.321
C2 C3 C6 100.321 C2 C3 H9 118.655
C3 C2 H8 126.879 C3 C5 C4 81.509
C3 C5 H11 117.146 C3 C5 H14 113.081
C3 C6 C4 81.509 C3 C6 H12 117.146
C3 C6 H13 113.081 C4 C1 H7 126.879
C4 C5 H11 117.146 C4 C5 H14 113.081
C4 C6 H12 117.146 C4 C6 H13 113.081
C5 C3 C6 85.547 C5 C3 H9 122.598
C5 C4 C6 85.547 C5 C4 H10 122.598
C6 C3 H9 122.598 C6 C4 H10 122.598
H11 C5 H14 111.798 H12 C6 H13 111.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability