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All results from a given calculation for CH3CBr3 (1,1,1-tribromoethane)

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-7787.667897
Energy at 298.15K-7787.679850
HF Energy-7787.134119
Nuclear repulsion energy980.725944
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/6-31G*
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 3181 2938 2.99      
2 A1 1513 1398 6.93      
3 A1 1133 1047 2.89      
4 A1 438 404 5.17      
5 A1 234 216 0.07      
6 A2 334 309 0.00      
7 E 3275 3025 2.26      
7 E 3275 3025 2.26      
8 E 1573 1453 4.22      
8 E 1573 1453 4.22      
9 E 1165 1076 45.79      
9 E 1165 1076 45.80      
10 E 693 640 68.15      
10 E 693 640 68.14      
11 E 295 272 1.23      
11 E 295 272 1.23      
12 E 166 153 0.05      
12 E 166 153 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 10583.0 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 9775.5 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/6-31G*
ABC
0.03566 0.03566 0.02120

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.458
C2 0.000 0.000 1.973
Br3 0.000 1.829 -0.206
Br4 1.584 -0.915 -0.206
Br5 -1.584 -0.915 -0.206
H6 0.000 -1.024 2.337
H7 0.887 0.512 2.337
H8 -0.887 0.512 2.337

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51461.94581.94581.94582.13962.13962.1396
C21.51462.84442.84442.84441.08711.08711.0871
Br31.94582.84443.16793.16793.82162.99732.9973
Br41.94582.84443.16793.16792.99732.99733.8216
Br51.94582.84443.16793.16792.99733.82162.9973
H62.13961.08713.82162.99732.99731.77431.7743
H72.13961.08712.99732.99733.82161.77431.7743
H82.13961.08712.99733.82162.99731.77431.7743

picture of 1,1,1-tribromoethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.553 C1 C2 H7 109.553
C1 C2 H8 109.553 C2 C1 Br3 109.949
C2 C1 Br4 109.949 C2 C1 Br5 109.949
Br3 C1 Br4 108.989 Br3 C1 Br5 108.989
Br4 C1 Br5 108.989 H6 C2 H7 109.390
H6 C2 H8 109.390 H7 C2 H8 109.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability