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All results from a given calculation for C6H6 (Hexa-1,5-diene-3-yne)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-229.845936
Energy at 298.15K-229.849387
HF Energy-229.311452
Nuclear repulsion energy173.540487
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 MP2/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3271 3123 0.00      
2 Ag 3186 3041 0.00      
3 Ag 3174 3030 0.00      
4 Ag 2238 2136 0.00      
5 Ag 1647 1572 0.00      
6 Ag 1508 1440 0.00      
7 Ag 1378 1315 0.00      
8 Ag 1146 1094 0.00      
9 Ag 712 680 0.00      
10 Ag 542 518 0.00      
11 Ag 233 222 0.00      
12 Au 1029 982 51.82      
13 Au 944 901 90.85      
14 Au 688 657 8.49      
15 Au 163 156 6.20      
16 Au 31 30 0.08      
17 Bg 1026 980 0.00      
18 Bg 944 901 0.00      
19 Bg 659 629 0.00      
20 Bg 101 96 0.00      
21 Bu 3271 3123 20.99      
22 Bu 3185 3040 12.23      
23 Bu 3174 3030 10.06      
24 Bu 1661 1586 19.64      
25 Bu 1522 1453 4.18      
26 Bu 1380 1317 1.79      
27 Bu 1215 1160 22.82      
28 Bu 1037 990 0.56      
29 Bu 551 526 3.83      
30 Bu 107 102 2.28      

Unscaled Zero Point Vibrational Energy (zpe) 20863.0 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 19913.7 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 MP2/3-21G
ABC
0.85650 0.04461 0.04241

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.615 0.000
C2 0.000 -0.615 0.000
C3 0.000 2.054 0.000
C4 0.000 -2.054 0.000
C5 1.120 2.807 0.000
C6 -1.120 -2.807 0.000
H7 -0.974 2.541 0.000
H8 0.974 -2.541 0.000
H9 2.111 2.361 0.000
H10 1.065 3.891 0.000
H11 -2.111 -2.361 0.000
H12 -1.065 -3.891 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22951.43942.66892.46213.60062.15873.30282.73963.44523.64854.6301
C21.22952.66891.43943.60062.46213.30282.15873.64854.63012.73963.4452
C31.43942.66894.10831.34994.98871.08904.69742.13282.12354.89406.0400
C42.66891.43944.10834.98871.34994.69741.08904.89406.04002.13282.1235
C52.46213.60061.34994.98876.04492.11105.35041.08601.08546.09537.0459
C63.60062.46214.98871.34996.04495.35042.11106.09537.04591.08601.0854
H72.15873.30281.08904.69742.11105.35045.44293.08982.44545.03276.4331
H83.30282.15874.69741.08905.35042.11105.44295.03276.43313.08982.4454
H92.73963.64852.13284.89401.08606.09533.08985.03271.85306.33437.0128
H103.44524.63012.12356.04001.08547.04592.44546.43311.85307.01288.0687
H113.64852.73964.89402.13286.09531.08605.03273.08986.33437.01281.8530
H124.63013.44526.04002.12357.04591.08546.43312.44547.01288.06871.8530

picture of Hexa-1,5-diene-3-yne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 C5 123.909
C1 C3 H7 116.571 C2 C1 C3 180.000
C2 C4 C6 123.909 C2 C4 H8 116.571
C3 C5 H9 121.856 C3 C5 H10 120.993
C4 C6 H11 121.856 C4 C6 H12 120.993
C5 C3 H7 119.520 C6 C4 H8 119.520
H9 C5 H10 117.151 H11 C6 H12 117.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability