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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-374.326035
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 3000 0.03      
2 A1 1527 1457 40.21      
3 A1 1316 1256 209.14      
4 A1 818 781 1.69      
5 A1 574 548 29.19      
6 A2 268 256 0.00      
7 E 3227 3080 2.40      
7 E 3227 3080 2.40      
8 E 1592 1519 0.62      
8 E 1592 1519 0.62      
9 E 1352 1291 193.44      
9 E 1352 1291 193.44      
10 E 1051 1003 39.03      
10 E 1051 1003 39.03      
11 E 522 498 4.43      
11 E 522 498 4.43      
12 E 348 332 0.36      
12 E 348 332 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 11914.2 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 11372.1 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
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.661     -0.595
2 C 0.908     0.905
3 H 0.231     0.172
4 H 0.231     0.172
5 H 0.231     0.172
6 F -0.314     -0.275
7 F -0.314     -0.275
8 F -0.314     -0.276


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.315 2.315
CHELPG        
AIM        
ESP -0.001 0.001 2.319 2.319


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.571 0.000 0.000
y 0.000 -28.571 0.000
z 0.000 0.000 -25.640
Traceless
 xyz
x -1.465 0.000 0.000
y 0.000 -1.465 0.000
z 0.000 0.000 2.931
Polar
3z2-r25.861
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.925 0.000 0.000
y 0.000 2.925 0.000
z 0.000 0.000 2.704


<r2> (average value of r2) Å2
<r2> 95.839
(<r2>)1/2 9.790