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

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-2688.142875
Energy at 298.15K-2688.153449
HF Energy-2687.588551
Nuclear repulsion energy251.247860
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 MP2/6-31G**
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' 3247 3041 17.10      
2 A' 3223 3018 27.41      
3 A' 3189 2987 2.98      
4 A' 3127 2928 20.09      
5 A' 1563 1464 6.23      
6 A' 1551 1453 7.05      
7 A' 1469 1376 3.69      
8 A' 1302 1219 46.43      
9 A' 1224 1146 23.24      
10 A' 1089 1020 6.14      
11 A' 928 869 5.32      
12 A' 573 537 13.87      
13 A' 412 385 1.27      
14 A' 312 292 1.10      
15 A' 279 262 0.85      
16 A" 3244 3038 8.28      
17 A" 3219 3014 1.55      
18 A" 3124 2925 10.18      
19 A" 1543 1445 0.50      
20 A" 1539 1441 2.20      
21 A" 1456 1363 8.22      
22 A" 1400 1311 0.78      
23 A" 1189 1113 0.64      
24 A" 986 923 0.04      
25 A" 965 904 1.22      
26 A" 296 277 0.59      
27 A" 261 244 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 21352.9 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 19997.0 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 MP2/6-31G**
ABC
0.26916 0.09692 0.07640

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.453 -0.903 0.000
Br2 -0.066 1.007 0.000
H3 1.542 -0.872 0.000
C4 -0.066 -1.553 1.268
C5 -0.066 -1.553 -1.268
H6 -1.154 -1.516 1.293
H7 0.249 -2.598 1.293
H8 0.318 -1.051 2.153
H9 -1.154 -1.516 -1.293
H10 0.249 -2.598 -1.293
H11 0.318 -1.051 -2.153

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.97961.08851.51621.51622.15212.14142.16262.15212.14142.1626
Br21.97962.47262.85672.85673.03743.84273.00373.03743.84273.0037
H31.08852.47262.15742.15743.05812.51452.48303.05812.51452.4830
C41.51622.85672.15742.53551.08871.09151.08752.78292.78373.4787
C51.51622.85672.15742.53552.78292.78373.47871.08871.09151.0875
H62.15213.03743.05811.08872.78291.77061.76672.58703.13473.7765
H72.14143.84272.51451.09152.78371.77061.77063.13472.58643.7780
H82.16263.00372.48301.08753.47871.76671.77063.77653.77804.3064
H92.15213.03743.05812.78291.08872.58703.13473.77651.77061.7667
H102.14143.84272.51452.78371.09153.13472.58643.77801.77061.7706
H112.16263.00372.48303.47871.08753.77653.77804.30641.76671.7706

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 110.342 C1 C4 H7 109.332
C1 C4 H8 111.253 C1 C5 H9 110.342
C1 C5 H10 109.332 C1 C5 H11 111.253
Br2 C1 H3 103.552 Br2 C1 C4 108.884
Br2 C1 C5 108.884 H3 C1 C4 110.771
H3 C1 C5 110.771 C4 C1 C5 113.476
H6 C4 H7 108.609 H6 C4 H8 108.550
H7 C4 H8 108.698 H9 C5 H10 108.609
H9 C5 H11 108.550 H10 C5 H11 108.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability