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

using model chemistry: CCD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCD/cc-pVTZ
 hartrees
Energy at 0K-7795.931255
Energy at 298.15K-7795.943139
HF Energy-7794.874866
Nuclear repulsion energy982.775477
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 CCD/cc-pVTZ
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 3081 2876 3.21      
2 A1 1433 1338 4.93      
3 A1 1094 1022 3.46      
4 A1 428 400 3.26      
5 A1 226 211 0.04      
6 A2 327 306 0.00      
7 E 3172 2962 3.06      
7 E 3172 2962 3.06      
8 E 1499 1400 3.03      
8 E 1499 1400 3.03      
9 E 1114 1040 40.51      
9 E 1114 1040 40.51      
10 E 689 643 54.93      
10 E 689 643 54.94      
11 E 285 266 0.86      
11 E 285 266 0.86      
12 E 155 145 0.04      
12 E 155 145 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 10208.7 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 9531.9 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 CCD/cc-pVTZ
ABC
0.03581 0.03581 0.02125

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.445
C2 0.000 0.000 1.961
Br3 0.000 1.827 -0.204
Br4 1.582 -0.913 -0.204
Br5 -1.582 -0.913 -0.204
H6 0.000 -1.026 2.324
H7 0.888 0.513 2.324
H8 -0.888 0.513 2.324

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51601.93861.93861.93862.14082.14082.1408
C21.51602.83262.83262.83261.08801.08801.0880
Br31.93862.83263.16413.16413.81132.98422.9842
Br41.93862.83263.16413.16412.98422.98423.8113
Br51.93862.83263.16413.16412.98423.81132.9842
H62.14081.08803.81132.98422.98421.77641.7764
H72.14081.08802.98422.98423.81131.77641.7764
H82.14081.08802.98423.81132.98421.77641.7764

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 109.496 C1 C2 H7 109.496
C1 C2 H8 109.496 C2 C1 Br3 109.553
C2 C1 Br4 109.553 C2 C1 Br5 109.553
Br3 C1 Br4 109.390 Br3 C1 Br5 109.390
Br4 C1 Br5 109.390 H6 C2 H7 109.447
H6 C2 H8 109.447 H7 C2 H8 109.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability