return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP4=FULL/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 MP4=FULL/cc-pVDZ
 hartrees
Energy at 0K-231.468702
Energy at 298.15K-231.472488
HF Energy-230.589723
Nuclear repulsion energy174.111682
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 MP4=FULL/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 3169 3058        
2 Ag 3146 3037        
3 Ag 2000 1930        
4 Ag 1492 1440        
5 Ag 1391 1343        
6 Ag 1164 1123        
7 Ag 1027 991        
8 Ag 845 815        
9 Ag 522 504        
10 Ag 220 212        
11 Au 3239 3126        
12 Au 1006 971        
13 Au 901 869        
14 Au 474 457        
15 Au 325 313        
16 Au 76 74        
17 Bg 3239 3126        
18 Bg 1009 973        
19 Bg 862 832        
20 Bg 649 627        
21 Bg 300 289        
22 Bu 3176 3065        
23 Bu 3147 3037        
24 Bu 2013 1943        
25 Bu 1454 1404        
26 Bu 1248 1205        
27 Bu 1081 1043        
28 Bu 846 816        
29 Bu 515 497        
30 Bu 116 112        

Unscaled Zero Point Vibrational Energy (zpe) 20326.0 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 19616.6 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 MP4=FULL/cc-pVDZ
ABC
1.04506 0.04427 0.04325

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.333 0.660 0.000
C2 0.333 -0.660 0.000
C3 0.333 1.817 0.000
C4 -0.333 -1.817 0.000
C5 1.000 2.965 0.000
C6 -1.000 -2.965 0.000
H7 -1.432 0.674 0.000
H8 1.432 -0.674 0.000
H9 1.284 3.456 0.940
H10 1.284 3.456 -0.940
H11 -1.284 -3.456 0.940
H12 -1.284 -3.456 -0.940

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47851.33492.47662.66233.68541.09912.21283.36413.36414.32784.3278
C21.47852.47661.33493.68542.66232.21281.09914.32784.32783.36413.3641
C31.33492.47663.69401.32754.96362.10272.72272.11552.11555.59485.5948
C42.47661.33493.69404.96361.32752.72272.10275.59485.59482.11552.1155
C52.66233.68541.32754.96366.25733.34073.66451.09791.09796.87936.8793
C63.68542.66234.96361.32756.25733.66453.34076.87936.87931.09791.0979
H71.09912.21282.10272.72273.34073.66453.16594.00004.00004.23864.2386
H82.21281.09912.72272.10273.66453.34073.16594.23864.23864.00004.0000
H93.36414.32782.11555.59481.09796.87934.00004.23861.87937.37407.6097
H103.36414.32782.11555.59481.09796.87934.00004.23861.87937.60977.3740
H114.32783.36415.59482.11556.87931.09794.23864.00007.37407.60971.8793
H124.32783.36415.59482.11556.87931.09794.23864.00007.60977.37401.8793

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 123.277 C1 C2 H8 117.530
C1 C3 C5 179.792 C2 C1 C3 123.277
C2 C1 H7 117.530 C2 C4 C6 179.792
C3 C1 H7 119.193 C3 C5 H9 121.145
C3 C5 H10 121.145 C4 C2 H8 119.193
C4 C6 H11 121.145 C4 C6 H12 121.145
H9 C5 H10 117.710 H11 C6 H12 117.710
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability