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All results from a given calculation for C6H6 (2,4-Hexadiyne)

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 D3H 1A1'
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-231.425987
Energy at 298.15K 
HF Energy-230.630290
Nuclear repulsion energy169.182736
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' 3076 2923 0.00      
2 A1' 2295 2181 0.00      
3 A1' 1449 1377 0.00      
4 A1' 1300 1235 0.00      
5 A1' 552 525 0.00      
6 A1" 42 40 0.00      
7 A2" 3076 2923 46.32      
8 A2" 2179 2071 3.31      
9 A2" 1442 1371 6.05      
10 A2" 960 912 0.02      
11 E' 3161 3004 14.20      
11 E' 3161 3004 14.20      
12 E' 1516 1440 18.50      
12 E' 1516 1440 18.50      
13 E' 1039 988 3.64      
13 E' 1039 988 3.64      
14 E' 114 108 4.19      
14 E' 114 108 4.19      
15 E' 101 96 9.56      
15 E' 101 96 9.56      
16 E" 3161 3004 0.00      
16 E" 3161 3004 0.00      
17 E" 1516 1440 0.00      
17 E" 1516 1440 0.00      
18 E" 1043 991 0.00      
18 E" 1043 991 0.00      
19 E" 247 235 0.00      
19 E" 247 235 0.00      
20 E" 778i 739i 0.00      
20 E" 778i 739i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19304.3 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 18344.8 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
2.66524 0.03660 0.03660

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.689
C2 0.000 0.000 -0.689
C3 0.000 0.000 1.912
C4 0.000 0.000 -1.912
C5 0.000 0.000 3.373
C6 0.000 0.000 -3.373
H7 0.000 1.023 3.757
H8 -0.886 -0.511 3.757
H9 0.886 -0.511 3.757
H10 0.000 1.023 -3.757
H11 0.886 -0.511 -3.757
H12 -0.886 -0.511 -3.757

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.37721.22292.60022.68474.06193.23443.23443.23444.56184.56184.5618
C21.37722.60021.22294.06192.68474.56184.56184.56183.23443.23443.2344
C31.22292.60023.82311.46175.28482.11002.11002.11005.76015.76015.7601
C42.60021.22293.82315.28481.46175.76015.76015.76012.11002.11002.1100
C52.68474.06191.46175.28486.74661.09251.09251.09257.20337.20337.2033
C64.06192.68475.28481.46176.74667.20337.20337.20331.09251.09251.0925
H73.23444.56182.11005.76011.09257.20331.77161.77167.51417.72017.7201
H83.23444.56182.11005.76011.09257.20331.77161.77167.72017.72017.5141
H93.23444.56182.11005.76011.09257.20331.77161.77167.72017.51417.7201
H104.56183.23445.76012.11007.20331.09257.51417.72017.72011.77161.7716
H114.56183.23445.76012.11007.20331.09257.72017.72017.51411.77161.7716
H124.56183.23445.76012.11007.20331.09257.72017.51417.72011.77161.7716

picture of 2,4-Hexadiyne 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 180.000
C2 C1 C3 180.000 C2 C4 C6 180.000
C3 C5 H7 110.566 C3 C5 H8 110.566
C3 C5 H9 110.566 C4 C6 H10 110.566
C4 C6 H11 110.566 C4 C6 H12 110.566
H7 C5 H8 108.355 H7 C5 H9 108.355
H8 C5 H9 108.355 H10 C6 H11 108.355
H10 C6 H12 108.355 H11 C6 H12 108.355
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability