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 (Prismane)

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 D3H 1A1'
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-229.730982
Energy at 298.15K-229.737565
HF Energy-229.195983
Nuclear repulsion energy215.563509
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 A1' 3300 3129 0.00      
2 A1' 1238 1174 0.00      
3 A1' 1092 1035 0.00      
4 A1' 946 897 0.00      
5 A1" 1040 986 0.00      
6 A1" 642 609 0.00      
7 A2' 1085 1029 0.00      
8 A2" 3283 3112 32.09      
9 A2" 1289 1222 0.15      
10 A2" 930 882 2.94      
11 E' 3276 3105 12.88      
11 E' 3276 3105 12.88      
12 E' 1265 1200 17.31      
12 E' 1265 1200 17.31      
13 E' 984 933 9.15      
13 E' 984 933 9.15      
14 E' 813 771 0.00      
14 E' 813 771 0.00      
15 E' 804 762 44.53      
15 E' 804 762 44.53      
16 E" 3263 3094 0.00      
16 E" 3263 3094 0.00      
17 E" 1195 1133 0.00      
17 E" 1195 1133 0.00      
18 E" 1046 992 0.00      
18 E" 1046 992 0.00      
19 E" 747 708 0.00      
19 E" 747 708 0.00      
20 E" 696 659 0.00      
20 E" 696 659 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21511.1 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 20392.6 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 MP2=FULL/3-21G*
ABC
0.22042 0.17289 0.17289

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.904 0.794
C2 -0.783 -0.452 0.794
C3 0.783 -0.452 0.794
C4 0.000 0.904 -0.794
C5 0.783 -0.452 -0.794
C6 -0.783 -0.452 -0.794
H7 0.000 1.709 1.512
H8 -1.480 -0.854 1.512
H9 1.480 -0.854 1.512
H10 0.000 1.709 -1.512
H11 1.480 -0.854 -1.512
H12 -1.480 -0.854 -1.512

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.56551.56551.58882.23052.23051.07872.40782.40782.44313.25623.2562
C21.56551.56552.23052.23051.58882.40781.07872.40783.25623.25622.4431
C31.56551.56552.23051.58882.23052.40782.40781.07873.25622.44313.2562
C41.58882.23052.23051.56551.56552.44313.25623.25621.07872.40782.4078
C52.23052.23051.58881.56551.56553.25623.25622.44312.40781.07872.4078
C62.23051.58882.23051.56551.56553.25622.44313.25622.40782.40781.0787
H71.07872.40782.40782.44313.25623.25622.96002.96003.02454.23194.2319
H82.40781.07872.40783.25623.25622.44312.96002.96004.23194.23193.0245
H92.40782.40781.07873.25622.44313.25622.96002.96004.23193.02454.2319
H102.44313.25623.25621.07872.40782.40783.02454.23194.23192.96002.9600
H113.25623.25622.44312.40781.07872.40784.23194.23193.02452.96002.9600
H123.25622.44313.25622.40782.40781.07874.23193.02454.23192.96002.9600

picture of Prismane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 60.000 C1 C2 C6 90.000
C1 C2 H8 130.270 C1 C3 C2 60.000
C1 C3 C5 90.000 C1 C3 H9 130.270
C1 C4 C5 90.000 C1 C4 C6 90.000
C1 C4 H10 131.721 C2 C1 C3 60.000
C2 C1 C4 90.000 C2 C1 H7 130.271
C2 C3 C5 90.000 C2 C3 H9 130.271
C2 C6 C4 90.000 C2 C6 C5 90.000
C2 C6 H12 131.721 C3 C1 C4 90.000
C3 C1 H7 130.271 C3 C2 C6 90.000
C3 C2 H8 130.271 C3 C5 C4 90.000
C3 C5 C6 90.000 C3 C5 H11 131.721
C4 C1 H7 131.721 C4 C5 C6 60.000
C4 C5 H11 130.270 C4 C6 H12 130.270
C5 C3 H9 131.721 C5 C4 C6 60.000
C5 C4 H10 130.271 C5 C6 H12 130.271
C6 C2 H8 131.721 C6 C4 C5 60.000
C6 C4 H10 130.271 C6 C5 H11 130.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability