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All results from a given calculation for CHF2CH2F (Ethane, 1,1,2-trifluoro)

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
1 2 no Cs 1A'

Conformer 1 (C1)

Jump to S1C2
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-376.601503
Energy at 298.15K 
HF Energy-375.789094
Nuclear repulsion energy190.558883
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 QCISD/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 A 3209 3021 35.50      
2 A 3176 2990 28.84      
3 A 3140 2956 19.09      
4 A 1565 1474 3.01      
5 A 1520 1431 15.45      
6 A 1466 1380 30.53      
7 A 1390 1308 31.08      
8 A 1295 1219 10.96      
9 A 1207 1136 96.40      
10 A 1183 1113 21.96      
11 A 1163 1095 154.51      
12 A 1129 1063 45.70      
13 A 944 889 33.01      
14 A 579 546 4.86      
15 A 488 460 19.71      
16 A 430 405 6.17      
17 A 243 229 8.61      
18 A 126 118 7.55      

Unscaled Zero Point Vibrational Energy (zpe) 12125.9 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 11415.3 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 QCISD/6-31G**
ABC
0.30145 0.12187 0.09366

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.760 -0.612 -0.275
C2 0.467 0.022 0.334
F3 -1.874 0.100 0.144
F4 1.549 -0.742 -0.013
F5 0.644 1.271 -0.183
H6 -0.682 -0.568 -1.361
H7 -0.846 -1.648 0.053
H8 0.417 0.099 1.420

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 H6 H7 H8
C11.50931.38722.32792.35041.09001.09002.1831
C21.50932.35001.36961.36382.13162.14211.0899
F31.38722.35003.52912.79592.03322.03012.6226
F42.32791.36963.52912.21412.61332.56152.0110
F52.35041.36382.79592.21412.55513.28531.9988
H61.09002.13162.03322.61332.55511.78733.0646
H71.09002.14212.03012.56153.28531.78732.5524
H82.18311.08992.62262.01101.99883.06462.5524

picture of Ethane, 1,1,2-trifluoro state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 107.820 C1 C2 F5 109.682
C1 C2 H8 113.272 C2 C1 F3 108.374
C2 C1 H6 109.114 C2 C1 H7 109.946
F3 C1 H6 109.746 F3 C1 H7 109.489
F4 C2 F5 108.193 F4 C2 H8 109.171
F5 C2 H8 108.585 H6 C1 H7 110.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Cs)

Jump to S1C1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-376.598932
Energy at 298.15K 
HF Energy-375.786056
Nuclear repulsion energy193.572693
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 QCISD/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 A' 3148 2964 64.44      
2 A' 3126 2943 10.12      
3 A' 1563 1471 3.94      
4 A' 1496 1408 29.22      
5 A' 1472 1386 29.77      
6 A' 1220 1149 99.70      
7 A' 1136 1069 13.05      
8 A' 915 861 38.45      
9 A' 773 728 50.47      
10 A' 512 482 12.86      
11 A' 237 223 1.97      
12 A" 3190 3003 27.81      
13 A" 1461 1375 40.77      
14 A" 1311 1234 16.19      
15 A" 1196 1126 85.59      
16 A" 1004 945 57.92      
17 A" 378 356 0.09      
18 A" 117 110 2.07      

Unscaled Zero Point Vibrational Energy (zpe) 12127.6 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 11416.9 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 QCISD/6-31G**
ABC
0.24354 0.14196 0.11590

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.753 -0.824 0.000
C2 0.361 0.633 0.000
F3 -0.393 -1.600 0.000
F4 -0.393 0.908 1.105
F5 -0.393 0.908 -1.105
H6 1.340 -1.045 -0.893
H7 1.340 -1.045 0.893
H8 1.233 1.291 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 H6 H7 H8
C11.50851.38352.35162.35161.09111.09112.1689
C21.50852.35671.36521.36522.13772.13771.0924
F31.38352.35672.74012.74012.02622.02623.3168
F42.35161.36522.74012.20903.28682.61892.0026
F52.35161.36522.74012.20902.61893.28682.0026
H61.09112.13772.02623.28682.61891.78552.5032
H71.09112.13772.02622.61893.28681.78552.5032
H82.16891.09243.31682.00262.00262.50322.5032

picture of Ethane, 1,1,2-trifluoro state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 109.732 C1 C2 F5 109.732
C1 C2 H8 112.011 C2 C1 F3 109.082
C2 C1 H6 109.593 C2 C1 H7 109.593
F3 C1 H6 109.371 F3 C1 H7 109.371
F4 C2 F5 108.003 F4 C2 H8 108.634
F5 C2 H8 108.634 H6 C1 H7 109.815
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability