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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-229.859472
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 3124 0.00      
2 Ag 3186 3042 0.00      
3 Ag 3175 3031 0.00      
4 Ag 2239 2138 0.00      
5 Ag 1647 1573 0.00      
6 Ag 1509 1440 0.00      
7 Ag 1378 1316 0.00      
8 Ag 1146 1094 0.00      
9 Ag 713 681 0.00      
10 Ag 544 520 0.00      
11 Ag 234 224 0.00      
12 Au 1029 983 51.64      
13 Au 945 902 91.03      
14 Au 689 658 8.46      
15 Au 165 157 6.21      
16 Au 31 30 0.08      
17 Bg 1027 980 0.00      
18 Bg 945 902 0.00      
19 Bg 661 631 0.00      
20 Bg 128 122 0.00      
21 Bu 3272 3124 20.87      
22 Bu 3186 3042 12.16      
23 Bu 3175 3031 9.98      
24 Bu 1662 1587 19.62      
25 Bu 1522 1453 4.14      
26 Bu 1380 1318 1.78      
27 Bu 1215 1161 22.77      
28 Bu 1037 990 0.54      
29 Bu 551 526 3.82      
30 Bu 108 103 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 20884.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 19940.8 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=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