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All results from a given calculation for CH3CHBrCH3 (i-propyl bromide)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-131.074798
Energy at 298.15K-131.085230
HF Energy-130.778537
Nuclear repulsion energy108.336691
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/SDD
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' 3149 3040 52.23      
2 A' 3127 3018 37.28      
3 A' 3113 3005 6.67      
4 A' 3019 2915 34.04      
5 A' 1541 1488 11.86      
6 A' 1530 1477 10.33      
7 A' 1470 1419 5.77      
8 A' 1311 1265 57.88      
9 A' 1217 1174 29.47      
10 A' 1091 1053 12.46      
11 A' 893 862 7.26      
12 A' 541 523 14.43      
13 A' 405 391 1.36      
14 A' 297 287 1.32      
15 A' 265 256 0.82      
16 A" 3141 3032 17.94      
17 A" 3115 3007 7.39      
18 A" 3017 2912 19.78      
19 A" 1526 1473 1.85      
20 A" 1517 1465 3.80      
21 A" 1451 1400 11.65      
22 A" 1378 1331 2.16      
23 A" 1160 1119 1.88      
24 A" 983 949 0.56      
25 A" 963 929 1.74      
26 A" 283 273 0.18      
27 A" 233 225 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 20866.9 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 20142.8 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/SDD
ABC
0.25819 0.09121 0.07215

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.463 -0.937 0.000
Br2 -0.067 1.039 0.000
H3 1.564 -0.904 0.000
C4 -0.067 -1.601 1.296
C5 -0.067 -1.601 -1.296
H6 -1.170 -1.569 1.328
H7 0.257 -2.659 1.317
H8 0.324 -1.096 2.195
H9 -1.170 -1.569 -1.328
H10 0.257 -2.659 -1.317
H11 0.324 -1.096 -2.195

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.04661.10141.54931.54932.19812.17722.20472.19812.17722.2047
Br22.04662.53712.94082.94083.12813.93923.08673.12813.93923.0867
H31.10142.53712.19682.19683.11192.55422.52813.11192.55422.5281
C41.54932.94082.19682.59141.10391.10721.10282.84662.83723.5483
C51.54932.94082.19682.59142.84662.83723.54831.10391.10721.1028
H62.19813.12813.11191.10392.84661.79581.79102.65663.19693.8559
H72.17723.93922.55421.10722.83721.79581.79443.19692.63323.8441
H82.20473.08672.52811.10283.54831.79101.79443.85593.84414.3893
H92.19813.12813.11192.84661.10392.65663.19693.85591.79581.7910
H102.17723.93922.55422.83721.10723.19692.63323.84411.79581.7944
H112.20473.08672.52813.54831.10283.85593.84414.38931.79101.7944

picture of i-propyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H6 110.769 C1 C4 H7 108.955
C1 C4 H8 111.359 C1 C5 H9 110.769
C1 C5 H10 108.955 C1 C5 H11 111.359
Br2 C1 H3 103.273 Br2 C1 C4 108.949
Br2 C1 C5 108.949 H3 C1 C4 110.814
H3 C1 C5 110.814 C4 C1 C5 113.511
H6 C4 H7 108.615 H6 C4 H8 108.507
H7 C4 H8 108.570 H9 C5 H10 108.615
H9 C5 H11 108.507 H10 C5 H11 108.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability