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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-2690.649291
Energy at 298.15K-2690.659844
HF Energy-2690.080157
Nuclear repulsion energy250.721533
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/cc-pVDZ
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' 3202 3050 15.24      
2 A' 3180 3029 27.14      
3 A' 3138 2989 4.59      
4 A' 3081 2934 21.50      
5 A' 1502 1431 6.38      
6 A' 1489 1418 8.52      
7 A' 1412 1345 3.73      
8 A' 1270 1210 42.94      
9 A' 1189 1132 20.27      
10 A' 1066 1016 8.11      
11 A' 922 878 5.16      
12 A' 579 552 12.14      
13 A' 406 387 1.04      
14 A' 312 297 0.80      
15 A' 278 265 0.62      
16 A" 3200 3048 8.40      
17 A" 3175 3025 1.31      
18 A" 3078 2932 12.33      
19 A" 1481 1411 0.51      
20 A" 1477 1407 1.97      
21 A" 1403 1336 8.91      
22 A" 1355 1291 0.63      
23 A" 1170 1114 0.96      
24 A" 961 916 0.04      
25 A" 936 891 1.18      
26 A" 293 279 0.57      
27 A" 261 248 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 20908.0 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 19914.8 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/cc-pVDZ
ABC
0.26733 0.09673 0.07621

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.905 -0.427 0.000
Br2 -0.671 0.754 0.000
H3 1.759 0.270 0.000
C4 0.905 -1.267 1.271
C5 0.905 -1.267 -1.271
H6 0.018 -1.922 1.300
H7 1.809 -1.901 1.288
H8 0.902 -0.634 2.171
H9 0.018 -1.922 -1.300
H10 1.809 -1.901 -1.288
H11 0.902 -0.634 -2.171

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.96941.10221.52331.52332.17042.15632.18112.17042.15632.1811
Br21.96942.47802.86072.86073.05393.85513.01963.05393.85513.0196
H31.10222.47802.16932.16933.08592.52442.50313.08592.52442.5031
C41.52332.86072.16932.54111.10241.10471.10072.79672.78663.4995
C51.52332.86072.16932.54112.79672.78663.49951.10241.10471.1007
H62.17043.05393.08591.10242.79671.79131.78832.59983.14723.8063
H72.15633.85512.52441.10472.78661.79131.79103.14722.57563.7937
H82.18113.01962.50311.10073.49951.78831.79103.80633.79374.3424
H92.17043.05393.08592.79671.10242.59983.14723.80631.79131.7883
H102.15633.85512.52442.78661.10473.14722.57563.79371.79131.7910
H112.18113.01962.50313.49951.10073.80633.79374.34241.78831.7910

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 110.475 C1 C4 H7 109.238
C1 C4 H8 111.430 C1 C5 H9 110.475
C1 C5 H10 109.238 C1 C5 H11 111.430
Br2 C1 H3 103.958 Br2 C1 C4 109.318
Br2 C1 C5 109.318 H3 C1 C4 110.402
H3 C1 C5 110.402 C4 C1 C5 113.042
H6 C4 H7 108.503 H6 C4 H8 108.527
H7 C4 H8 108.601 H9 C5 H10 108.503
H9 C5 H11 108.527 H10 C5 H11 108.601
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability