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All results from a given calculation for C6H6 (1,2,4,5-Hexatetraene)

using model chemistry: CID/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 CID/3-21G*
 hartrees
Energy at 0K-229.764033
Energy at 298.15K-229.768178
HF Energy-229.291777
Nuclear repulsion energy176.510981
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 CID/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 3230 3006 0.00      
2 Ag 3215 2991 0.00      
3 Ag 2120 1973 0.00      
4 Ag 1598 1487 0.00      
5 Ag 1496 1392 0.00      
6 Ag 1221 1136 0.00      
7 Ag 1068 994 0.00      
8 Ag 998 929 0.00      
9 Ag 562 523 0.00      
10 Ag 234 218 0.00      
11 Au 3283 3055 8.90      
12 Au 1126 1048 0.41      
13 Au 983 915 46.92      
14 Au 517 481 5.32      
15 Au 336 313 15.85      
16 Au 75 69 0.23      
17 Bg 3283 3055 0.00      
18 Bg 1127 1049 0.00      
19 Bg 973 906 0.00      
20 Bg 724 674 0.00      
21 Bg 316 294 0.00      
22 Bu 3238 3013 8.55      
23 Bu 3214 2991 8.97      
24 Bu 2134 1986 63.07      
25 Bu 1578 1468 0.28      
26 Bu 1379 1283 6.95      
27 Bu 1161 1080 1.56      
28 Bu 999 929 127.41      
29 Bu 564 525 25.21      
30 Bu 125 116 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 21438.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 19948.8 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 CID/3-21G*
ABC
1.06236 0.04552 0.04443

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.330 0.663 0.000
C2 0.330 -0.663 0.000
C3 0.330 1.794 0.000
C4 -0.330 -1.794 0.000
C5 0.992 2.918 0.000
C6 -0.992 -2.918 0.000
H7 -1.415 0.672 0.000
H8 1.415 -0.672 0.000
H9 1.281 3.409 0.921
H10 1.281 3.409 -0.921
H11 -1.281 -3.409 0.921
H12 -1.281 -3.409 -0.921

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.48191.30992.45762.61353.64161.08432.19743.31383.31384.28184.2818
C21.48192.45761.30993.64162.61352.19741.08434.28184.28183.31383.3138
C31.30992.45763.64901.30374.89402.07442.69462.08762.08765.52425.5242
C42.45761.30993.64904.89401.30372.69462.07445.52425.52422.08762.0876
C52.61353.64161.30374.89406.16343.29123.61501.08291.08296.78516.7851
C63.64162.61354.89401.30376.16343.61503.29126.78516.78511.08291.0829
H71.08432.19742.07442.69463.29123.61503.13253.94973.94974.18614.1861
H82.19741.08432.69462.07443.61503.29123.13254.18614.18613.94973.9497
H93.31384.28182.08765.52421.08296.78513.94974.18611.84197.28307.5123
H103.31384.28182.08765.52421.08296.78513.94974.18611.84197.51237.2830
H114.28183.31385.52422.08766.78511.08294.18613.94977.28307.51231.8419
H124.28183.31385.52422.08766.78511.08294.18613.94977.51237.28301.8419

picture of 1,2,4,5-Hexatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.241 C1 C2 H8 116.957
C1 C3 C5 179.791 C2 C1 C3 123.241
C2 C1 H7 116.957 C2 C4 C6 179.791
C3 C1 H7 119.801 C3 C5 H9 121.743
C3 C5 H10 121.743 C4 C2 H8 119.801
C4 C6 H11 121.743 C4 C6 H12 121.743
H9 C5 H10 116.514 H11 C6 H12 116.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability