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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-2690.039434
Energy at 298.15K-2690.049908
HF Energy-2690.039434
Nuclear repulsion energy248.632387
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 B3PW91/6-31G
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' 3176 3042 30.00      
2 A' 3149 3015 19.51      
3 A' 3132 3000 6.36      
4 A' 3055 2926 29.55      
5 A' 1544 1479 12.29      
6 A' 1535 1470 12.02      
7 A' 1470 1408 8.04      
8 A' 1280 1225 40.87      
9 A' 1213 1161 47.93      
10 A' 1079 1034 9.25      
11 A' 914 876 9.08      
12 A' 535 512 21.67      
13 A' 409 392 2.25      
14 A' 293 280 3.93      
15 A' 268 257 0.81      
16 A" 3168 3034 11.25      
17 A" 3136 3004 4.38      
18 A" 3051 2921 12.28      
19 A" 1525 1461 0.97      
20 A" 1522 1457 4.65      
21 A" 1455 1393 19.54      
22 A" 1390 1332 2.56      
23 A" 1181 1131 3.55      
24 A" 986 945 0.93      
25 A" 981 939 2.30      
26 A" 290 278 0.95      
27 A" 244 233 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 20989.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 20101.9 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 B3PW91/6-31G
ABC
0.26455 0.09497 0.07497

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.468 -0.942 0.000
Br2 -0.067 1.018 0.000
H3 1.559 -0.891 0.000
C4 -0.067 -1.561 1.277
C5 -0.067 -1.561 -1.277
H6 -1.161 -1.526 1.297
H7 0.245 -2.612 1.337
H8 0.310 -1.040 2.161
H9 -1.161 -1.526 -1.297
H10 0.245 -2.612 -1.337
H11 0.310 -1.040 -2.161

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.03211.09231.51611.51612.16252.15042.16902.16252.15042.1690
Br22.03212.50782.87732.87733.05773.88073.00763.05773.88073.0076
H31.09232.50782.17312.17313.07952.54452.50053.07952.54452.5005
C41.51612.87732.17312.55361.09451.09821.09332.79722.83483.4974
C51.51612.87732.17312.55362.79722.83483.49741.09451.09821.0933
H62.16253.05773.07951.09452.79721.77711.77332.59483.17783.7894
H72.15043.88072.54451.09822.83481.77711.77603.17782.67463.8359
H82.16903.00762.50051.09333.49741.77331.77603.78943.83594.3220
H92.16253.05773.07952.79721.09452.59483.17783.78941.77711.7733
H102.15043.88072.54452.83481.09823.17782.67463.83591.77711.7760
H112.16903.00762.50053.49741.09333.78943.83594.32201.77331.7760

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 110.826 C1 C4 H7 109.648
C1 C4 H8 111.425 C1 C5 H9 110.826
C1 C5 H10 109.648 C1 C5 H11 111.425
Br2 C1 H3 102.574 Br2 C1 C4 107.481
Br2 C1 C5 107.481 H3 C1 C4 111.816
H3 C1 C5 111.816 C4 C1 C5 114.743
H6 C4 H7 108.280 H6 C4 H8 108.302
H7 C4 H8 108.267 H9 C5 H10 108.280
H9 C5 H11 108.302 H10 C5 H11 108.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 Br -0.034      
3 H 0.226      
4 C -0.442      
5 C -0.442      
6 H 0.184      
7 H 0.171      
8 H 0.187      
9 H 0.184      
10 H 0.171      
11 H 0.187      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.517 -2.544 0.000 2.596
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.046 -0.632 0.000
y -0.632 -37.305 0.000
z 0.000 0.000 -37.853
Traceless
 xyz
x -0.467 -0.632 0.000
y -0.632 0.645 0.000
z 0.000 0.000 -0.178
Polar
3z2-r2-0.355
x2-y2-0.741
xy-0.632
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.099 -0.598 0.000
y -0.598 8.937 0.000
z 0.000 0.000 5.741


<r2> (average value of r2) Å2
<r2> 158.449
(<r2>)1/2 12.588