return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CID/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 CID/6-31G
 hartrees
Energy at 0K-2687.718422
Energy at 298.15K-2687.729012
HF Energy-2687.403623
Nuclear repulsion energy248.018711
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 CID/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' 3203 2996 36.49      
2 A' 3182 2975 11.70      
3 A' 3164 2959 17.83      
4 A' 3094 2893 29.39      
5 A' 1587 1484 10.20      
6 A' 1582 1480 8.06      
7 A' 1525 1426 5.06      
8 A' 1339 1252 49.81      
9 A' 1260 1178 33.05      
10 A' 1118 1046 5.78      
11 A' 929 869 6.97      
12 A' 554 518 20.59      
13 A' 420 393 1.69      
14 A' 303 283 2.38      
15 A' 278 260 0.61      
16 A" 3190 2983 14.20      
17 A" 3163 2958 4.35      
18 A" 3087 2887 12.76      
19 A" 1571 1470 1.29      
20 A" 1570 1469 3.61      
21 A" 1508 1411 12.06      
22 A" 1438 1345 1.27      
23 A" 1203 1125 1.71      
24 A" 1019 953 0.15      
25 A" 1011 945 1.93      
26 A" 299 280 0.67      
27 A" 256 239 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 21425.0 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 20036.7 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 CID/6-31G
ABC
0.26297 0.09438 0.07448

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.467 -0.934 0.000
Br2 -0.067 1.021 0.000
H3 1.557 -0.896 0.000
C4 -0.067 -1.569 1.282
C5 -0.067 -1.569 -1.282
H6 -1.161 -1.531 1.304
H7 0.246 -2.620 1.330
H8 0.313 -1.053 2.168
H9 -1.161 -1.531 -1.304
H10 0.246 -2.620 -1.330
H11 0.313 -1.053 -2.168

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.02721.09051.52701.52702.17002.15862.17662.17002.15862.1766
Br22.02722.51222.89002.89003.06793.88923.02433.06793.88923.0243
H31.09052.51222.17602.17603.08122.54202.50423.08122.54202.5042
C41.52702.89002.17602.56421.09491.09791.09362.80862.83313.5091
C51.52702.89002.17602.56422.80862.83313.50911.09491.09791.0936
H62.17003.06793.08121.09492.80861.77961.77452.60883.17913.8027
H72.15863.88922.54201.09792.83311.77961.77853.17912.66003.8336
H82.17663.02432.50421.09363.50911.77451.77853.80273.83364.3359
H92.17003.06793.08122.80861.09492.60883.17913.80271.77961.7745
H102.15863.88922.54202.83311.09793.17912.66003.83361.77961.7785
H112.17663.02432.50423.50911.09363.80273.83364.33591.77451.7785

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 110.632 C1 C4 H7 109.551
C1 C4 H8 111.242 C1 C5 H9 110.632
C1 C5 H10 109.551 C1 C5 H11 111.242
Br2 C1 H3 103.234 Br2 C1 C4 107.974
Br2 C1 C5 107.974 H3 C1 C4 111.378
H3 C1 C5 111.378 C4 C1 C5 114.195
H6 C4 H7 108.498 H6 C4 H8 108.357
H7 C4 H8 108.489 H9 C5 H10 108.498
H9 C5 H11 108.357 H10 C5 H11 108.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability