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All results from a given calculation for CH2FCH2CH2F (1,3-difluoropropane)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-317.140068
Energy at 298.15K 
HF Energy-316.087049
Nuclear repulsion energy188.369330
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/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 A 3142 3002 28.44      
2 A 3089 2951 3.58      
3 A 3069 2932 6.70      
4 A 1540 1472 0.47      
5 A 1478 1412 8.60      
6 A 1463 1398 7.16      
7 A 1335 1275 0.82      
8 A 1265 1209 0.78      
9 A 1153 1102 24.75      
10 A 1036 990 38.39      
11 A 893 853 0.04      
12 A 541 516 3.45      
13 A 248 237 3.76      
14 A 86 82 3.83      
15 B 3142 3002 26.46      
16 B 3116 2978 22.43      
17 B 3085 2948 54.68      
18 B 1540 1471 3.23      
19 B 1444 1380 13.24      
20 B 1414 1351 1.65      
21 B 1284 1227 7.21      
22 B 1143 1092 13.48      
23 B 1123 1073 104.80      
24 B 981 937 20.91      
25 B 798 763 2.85      
26 B 424 405 7.76      
27 B 188 180 9.88      

Unscaled Zero Point Vibrational Energy (zpe) 20008.7 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 19118.3 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/cc-pVTZ
ABC
0.31123 0.09789 0.09215

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.970
C2 0.000 1.258 0.128
C3 0.000 -1.258 0.128
F4 1.176 1.320 -0.607
F5 -1.176 -1.320 -0.607
H6 0.882 -0.003 1.613
H7 -0.882 0.003 1.613
H8 -0.832 1.258 -0.576
H9 -0.050 2.150 0.750
H10 0.832 -1.258 -0.576
H11 0.050 -2.150 0.750

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 H6 H7 H8 H9 H10 H11
C11.51351.51352.36922.36921.09191.09192.15972.16182.15972.1618
C21.51352.51501.38802.92702.13912.13501.08931.08952.74163.4644
C31.51352.51502.92701.38802.13502.13912.74163.46441.08931.0895
F42.36921.38802.92703.53602.60173.30152.00882.00882.60173.8927
F52.36922.92701.38803.53603.30152.60172.60173.89272.00882.0088
H61.09192.13912.13502.60173.30151.76453.05322.50042.52372.4585
H71.09192.13502.13913.30152.60171.76452.52372.45853.05322.5004
H82.15971.08932.74162.00882.60173.05322.52371.77883.01693.7622
H92.16181.08953.46442.00883.89272.50042.45851.77883.76224.3012
H102.15972.74161.08932.60172.00882.52373.05323.01693.76221.7788
H112.16183.46441.08953.89272.00882.45852.50043.76224.30121.7788

picture of 1,3-difluoropropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 109.401 C1 C2 H8 111.102
C1 C2 H9 111.252 C1 C3 F5 109.401
C1 C3 H10 111.102 C1 C3 H11 111.252
C2 C1 C3 112.371 C2 C1 H6 109.301
C2 C1 H7 108.982 C3 C1 H6 108.982
C3 C1 H7 109.301 F4 C2 H8 107.759
F4 C2 H9 107.745 F5 C3 H10 107.759
F5 C3 H11 107.745 H6 C1 H7 107.798
H8 C2 H9 109.459 H10 C3 H11 109.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability