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All results from a given calculation for CH3CF3 (Ethane, 1,1,1-trifluoro-)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-374.321387
Energy at 298.15K-374.326025
HF Energy-373.787082
Nuclear repulsion energy197.787206
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 MP2/3-21G*
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 3143 2990 0.03      
2 A1 1527 1452 40.21      
3 A1 1316 1252 209.14      
4 A1 818 778 1.69      
5 A1 574 546 29.19      
6 A2 268 255 0.00      
7 E 3227 3070 2.40      
7 E 3227 3070 2.40      
8 E 1592 1514 0.62      
8 E 1592 1514 0.62      
9 E 1352 1287 193.44      
9 E 1352 1287 193.44      
10 E 1051 1000 39.03      
10 E 1051 1000 39.03      
11 E 522 497 4.43      
11 E 522 497 4.43      
12 E 348 331 0.36      
12 E 348 331 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 11914.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 11334.0 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 MP2/3-21G*
ABC
0.17305 0.16802 0.16802

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.477
C2 0.000 0.000 -0.025
H3 0.000 -1.029 1.837
H4 0.891 0.514 1.837
H5 -0.891 0.514 1.837
F6 0.000 1.286 -0.527
F7 -1.113 -0.643 -0.527
F8 1.113 -0.643 -0.527

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 F6 F7 F8
C11.50191.08981.08981.08982.38102.38102.3810
C21.50192.12722.12722.12721.38031.38031.3803
H31.08982.12721.78161.78163.30822.64142.6414
H41.08982.12721.78161.78162.64143.30822.6414
H51.08982.12721.78161.78162.64142.64143.3082
F62.38101.38033.30822.64142.64142.22692.2269
F72.38101.38032.64143.30822.64142.22692.2269
F82.38101.38032.64142.64143.30822.22692.2269

picture of Ethane, 1,1,1-trifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 111.329 C1 C2 F7 111.329
C1 C2 F8 111.329 C2 C1 H3 109.290
C2 C1 H4 109.290 C2 C1 H5 109.290
H3 C1 H4 109.652 H3 C1 H5 109.652
H4 C1 H5 109.652 F6 C2 F7 107.551
F6 C2 F8 107.551 F7 C2 F8 107.551
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability