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All results from a given calculation for CH3CH2CH2Br (n-propyl bromide)

using model chemistry: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-2661.144116
Energy at 298.15K-2661.154489
HF Energy-2660.972660
Nuclear repulsion energy233.887467
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/STO-3G
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' 3556 3100 2.24      
2 A' 3411 2974 3.41      
3 A' 3389 2955 2.53      
4 A' 3375 2943 2.89      
5 A' 1741 1518 0.56      
6 A' 1717 1497 0.03      
7 A' 1699 1481 1.67      
8 A' 1622 1414 0.97      
9 A' 1553 1354 1.14      
10 A' 1421 1239 39.46      
11 A' 1228 1071 0.15      
12 A' 1166 1017 0.24      
13 A' 1010 881 4.55      
14 A' 811 707 7.61      
15 A' 342 298 0.37      
16 A' 228 199 0.94      
17 A" 3556 3100 3.98      
18 A" 3525 3073 3.07      
19 A" 3505 3056 1.36      
20 A" 1734 1512 1.93      
21 A" 1463 1275 0.01      
22 A" 1396 1218 0.14      
23 A" 1199 1045 0.02      
24 A" 951 829 0.72      
25 A" 803 700 2.46      
26 A" 235 205 0.01      
27 A" 109 95 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 23371.3 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 20377.4 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/STO-3G
ABC
0.82615 0.05324 0.05149

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.813 0.000
C2 1.554 0.625 0.000
C3 2.291 2.000 0.000
Br4 -0.959 -0.872 0.000
H5 -0.309 1.389 0.895
H6 -0.309 1.389 -0.895
H7 1.853 0.042 0.892
H8 1.853 0.042 -0.892
H9 3.384 1.850 0.000
H10 2.022 2.587 -0.894
H11 2.022 2.587 0.894

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.56522.57971.93871.10831.10832.19602.19603.53892.83482.8348
C21.56521.56012.92502.20362.20361.10651.10652.20202.20722.2072
C32.57971.56014.33682.81622.81622.19562.19561.10331.10351.1035
Br41.93872.92504.33682.51712.51713.08843.08845.12534.65334.6533
H51.10832.20362.81622.51711.78972.54723.11143.82733.17312.6206
H61.10832.20362.81622.51711.78973.11142.54723.82732.62063.1731
H72.19601.10652.19563.08842.54723.11141.78392.53143.11442.5512
H82.19601.10652.19563.08843.11142.54721.78392.53142.55123.1144
H93.53892.20201.10335.12533.82733.82732.53142.53141.78861.7886
H102.83482.20721.10354.65333.17312.62063.11442.55121.78861.7888
H112.83482.20721.10354.65332.62063.17312.55123.11441.78861.7888

picture of n-propyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.264 C1 C2 H7 109.357
C1 C2 H8 109.357 C2 C1 Br4 112.750
C2 C1 H5 109.837 C2 C1 H6 109.837
C2 C3 H9 110.361 C2 C3 H10 110.759
C2 C3 H11 110.759 C3 C2 H7 109.676
C3 C2 H8 109.676 Br4 C1 H5 108.295
Br4 C1 H6 108.295 H5 C1 H6 107.681
H7 C2 H8 107.428 H9 C3 H10 108.291
H9 C3 H11 108.291 H10 C3 H11 108.295
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability