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

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-231.422521
Energy at 298.15K-231.426391
HF Energy-230.590813
Nuclear repulsion energy174.383936
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 QCISD/cc-pVDZ
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 3184 3055 0.00      
2 Ag 3156 3028 0.00      
3 Ag 2041 1958 0.00      
4 Ag 1514 1453 0.00      
5 Ag 1406 1349 0.00      
6 Ag 1174 1127 0.00      
7 Ag 1041 999 0.00      
8 Ag 868 833 0.00      
9 Ag 529 507 0.00      
10 Ag 225 216 0.00      
11 Au 3247 3115 5.73      
12 Au 1020 979 1.42      
13 Au 910 873 30.89      
14 Au 479 459 3.74      
15 Au 334 320 8.38      
16 Au 76 73 0.33      
17 Bg 3247 3115 0.00      
18 Bg 1022 981 0.00      
19 Bg 879 843 0.00      
20 Bg 657 631 0.00      
21 Bg 308 296 0.00      
22 Bu 3191 3061 6.50      
23 Bu 3156 3028 13.51      
24 Bu 2049 1966 47.32      
25 Bu 1469 1410 0.19      
26 Bu 1265 1214 13.92      
27 Bu 1098 1054 0.60      
28 Bu 869 834 88.59      
29 Bu 523 502 20.79      
30 Bu 119 114 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 20527.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19693.6 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 QCISD/cc-pVDZ
ABC
1.04404 0.04443 0.04340

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.333 0.662 0.000
C2 0.333 -0.662 0.000
C3 0.333 1.814 0.000
C4 -0.333 -1.814 0.000
C5 1.000 2.958 0.000
C6 -1.000 -2.958 0.000
H7 -1.431 0.678 0.000
H8 1.431 -0.678 0.000
H9 1.284 3.449 0.939
H10 1.284 3.449 -0.939
H11 -1.284 -3.449 0.939
H12 -1.284 -3.449 -0.939

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.48181.33062.47562.65493.68091.09802.21523.35623.35624.32264.3226
C21.48182.47561.33063.68092.65492.21521.09804.32264.32263.35623.3562
C31.33062.47563.68811.32444.95452.09782.72312.11192.11195.58505.5850
C42.47561.33063.68814.95451.32442.72312.09785.58505.58502.11192.1119
C52.65493.68091.32444.95456.24493.33243.66191.09741.09746.86636.8663
C63.68092.65494.95451.32446.24493.66193.33246.86636.86631.09741.0974
H71.09802.21522.09782.72313.33243.66193.16703.99103.99104.23534.2353
H82.21521.09802.72312.09783.66193.33243.16704.23534.23533.99103.9910
H93.35624.32262.11195.58501.09746.86633.99104.23531.87897.36017.5962
H103.35624.32262.11195.58501.09746.86633.99104.23531.87897.59627.3601
H114.32263.35625.58502.11196.86631.09744.23533.99107.36017.59621.8789
H124.32263.35625.58502.11196.86631.09744.23533.99107.59627.36011.8789

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 123.255 C1 C2 H8 117.566
C1 C3 C5 179.819 C2 C1 C3 123.255
C2 C1 H7 117.566 C2 C4 C6 179.819
C3 C1 H7 119.179 C3 C5 H9 121.116
C3 C5 H10 121.116 C4 C2 H8 119.179
C4 C6 H11 121.116 C4 C6 H12 121.116
H9 C5 H10 117.768 H11 C6 H12 117.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability