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

using model chemistry: MP2=FULL/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=FULL/3-21G*
 hartrees
Energy at 0K-229.855966
Energy at 298.15K-229.859458
HF Energy-229.311545
Nuclear repulsion energy173.571148
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=FULL/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 3272 3102 0.00      
2 Ag 3186 3020 0.00      
3 Ag 3175 3010 0.00      
4 Ag 2239 2123 0.00      
5 Ag 1647 1562 0.00      
6 Ag 1509 1430 0.00      
7 Ag 1378 1306 0.00      
8 Ag 1146 1087 0.00      
9 Ag 713 676 0.00      
10 Ag 544 516 0.00      
11 Ag 234 222 0.00      
12 Au 1029 976 51.64      
13 Au 945 896 91.03      
14 Au 689 653 8.46      
15 Au 165 156 6.21      
16 Au 31 30 0.08      
17 Bg 1027 973 0.00      
18 Bg 945 896 0.00      
19 Bg 661 627 0.00      
20 Bg 128 121 0.00      
21 Bu 3272 3102 20.87      
22 Bu 3186 3020 12.16      
23 Bu 3175 3010 9.98      
24 Bu 1662 1575 19.62      
25 Bu 1522 1443 4.14      
26 Bu 1380 1309 1.78      
27 Bu 1215 1152 22.77      
28 Bu 1037 983 0.54      
29 Bu 551 522 3.82      
30 Bu 108 102 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 20884.7 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 19798.7 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=FULL/3-21G*
ABC
0.85685 0.04463 0.04242

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 2.110 2.361 0.000
H10 1.065 3.891 0.000
H11 -2.110 -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
C11.22921.43912.66832.46173.60002.15833.30222.73933.44473.64804.6293
C21.22922.66831.43913.60002.46173.30222.15833.64804.62932.73933.4447
C31.43912.66834.10741.34964.98781.08884.69652.13252.12324.89326.0389
C42.66831.43914.10744.98781.34964.69651.08884.89326.03892.13252.1232
C52.46173.60001.34964.98786.04392.11075.34951.08591.08536.09447.0447
C63.60002.46174.98781.34966.04395.34952.11076.09447.04471.08591.0853
H72.15833.30221.08884.69652.11075.34955.44193.08942.44505.03186.4320
H83.30222.15834.69651.08885.34952.11075.44195.03186.43203.08942.4450
H92.73933.64802.13254.89321.08596.09443.08945.03181.85276.33347.0118
H103.44474.62932.12326.03891.08537.04472.44506.43201.85277.01188.0674
H113.64802.73934.89322.13256.09441.08595.03183.08946.33347.01181.8527
H124.62933.44476.03892.12327.04471.08536.43202.44507.01188.06741.8527

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 123.914
C1 C3 H7 116.570 C2 C1 C3 180.000
C2 C4 C6 123.914 C2 C4 H8 116.570
C3 C5 H9 121.858 C3 C5 H10 120.995
C4 C6 H11 121.858 C4 C6 H12 120.995
C5 C3 H7 119.516 C6 C4 H8 119.516
H9 C5 H10 117.147 H11 C6 H12 117.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability