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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-2692.657752
Energy at 298.15K-2692.668197
HF Energy-2692.657752
Nuclear repulsion energy250.335464
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 B3PW91/6-311G*
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' 3144 3027 31.26      
2 A' 3119 3003 29.31      
3 A' 3102 2987 4.16      
4 A' 3040 2927 33.77      
5 A' 1518 1462 9.88      
6 A' 1504 1448 11.12      
7 A' 1428 1375 6.90      
8 A' 1269 1222 49.01      
9 A' 1184 1140 30.83      
10 A' 1067 1027 13.93      
11 A' 897 864 8.63      
12 A' 541 521 20.05      
13 A' 403 388 1.96      
14 A' 300 289 2.25      
15 A' 264 254 0.99      
16 A" 3138 3021 13.30      
17 A" 3108 2992 3.88      
18 A" 3035 2921 12.96      
19 A" 1495 1439 0.47      
20 A" 1490 1435 3.37      
21 A" 1414 1361 15.49      
22 A" 1363 1312 0.53      
23 A" 1155 1112 1.44      
24 A" 957 921 0.30      
25 A" 945 909 1.91      
26 A" 285 274 0.53      
27 A" 245 236 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 20704.9 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 19932.6 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 B3PW91/6-311G*
ABC
0.26839 0.09600 0.07573

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.912 -0.439 0.000
Br2 -0.677 0.756 0.000
H3 1.745 0.265 0.000
C4 0.912 -1.266 1.269
C5 0.912 -1.266 -1.269
H6 0.042 -1.926 1.310
H7 1.814 -1.889 1.296
H8 0.908 -0.637 2.161
H9 0.042 -1.926 -1.310
H10 1.814 -1.889 -1.296
H11 0.908 -0.637 -2.161

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.98831.09101.51491.51492.16432.14362.16992.16432.14362.1699
Br21.98832.47152.86812.86813.07063.85753.02023.07063.85753.0202
H31.09102.47152.15642.15643.06902.51502.48703.06902.51502.4870
C41.51492.86812.15642.53831.09281.09631.09132.80052.78913.4872
C51.51492.86812.15642.53832.80052.78913.48721.09281.09631.0913
H62.16433.07063.06901.09282.80051.77191.77092.61923.15073.8020
H72.14363.85752.51501.09632.78911.77191.77133.15072.59133.7863
H82.16993.02022.48701.09133.48721.77091.77133.80203.78634.3217
H92.16433.07063.06902.80051.09282.61923.15073.80201.77191.7709
H102.14363.85752.51502.78911.09633.15072.59133.78631.77191.7713
H112.16993.02022.48703.48721.09133.80203.78634.32171.77091.7713

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 111.155 C1 C4 H7 109.307
C1 C4 H8 111.702 C1 C5 H9 111.155
C1 C5 H10 109.307 C1 C5 H11 111.702
Br2 C1 H3 102.845 Br2 C1 C4 109.162
Br2 C1 C5 109.162 H3 C1 C4 110.637
H3 C1 C5 110.637 C4 C1 C5 113.811
H6 C4 H7 108.080 H6 C4 H8 108.349
H7 C4 H8 108.133 H9 C5 H10 108.080
H9 C5 H11 108.349 H10 C5 H11 108.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.356      
2 Br -0.076      
3 H 0.267      
4 C -0.627      
5 C -0.627      
6 H 0.238      
7 H 0.226      
8 H 0.246      
9 H 0.238      
10 H 0.226      
11 H 0.246      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.806 -1.514 0.000 2.356
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.308 -0.697 0.000
y -0.697 -38.531 0.000
z 0.000 0.000 -38.505
Traceless
 xyz
x 1.210 -0.697 0.000
y -0.697 -0.625 0.000
z 0.000 0.000 -0.586
Polar
3z2-r2-1.172
x2-y21.223
xy-0.697
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.843 -1.873 0.000
y -1.873 7.923 0.000
z 0.000 0.000 7.038


<r2> (average value of r2) Å2
<r2> 157.401
(<r2>)1/2 12.546