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 CH3CH2CH2Br (n-propyl bromide)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-34.524339
Energy at 298.15K-34.534679
HF Energy-34.524339
Nuclear repulsion energy67.671603
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3077 2998 56.13      
2 A' 3059 2981 23.69      
3 A' 3015 2939 15.21      
4 A' 2984 2908 42.20      
5 A' 1532 1493 10.03      
6 A' 1519 1480 2.24      
7 A' 1492 1454 2.35      
8 A' 1431 1394 5.05      
9 A' 1364 1329 5.58      
10 A' 1256 1224 54.05      
11 A' 1118 1089 3.01      
12 A' 1029 1003 3.76      
13 A' 901 878 12.06      
14 A' 615 600 36.30      
15 A' 293 286 3.45      
16 A' 202 197 2.28      
17 A" 3146 3066 29.78      
18 A" 3079 3001 62.53      
19 A" 3053 2975 1.75      
20 A" 1520 1481 10.14      
21 A" 1316 1283 0.07      
22 A" 1241 1210 0.66      
23 A" 1053 1026 4.34      
24 A" 863 841 0.07      
25 A" 757 737 6.25      
26 A" 222 216 0.06      
27 A" 106 103 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 20620.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 20095.1 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 B3LYP/CEP-121G
ABC
0.82407 0.05153 0.04987

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.882 0.000
C2 1.530 0.726 0.000
C3 2.228 2.115 0.000
Br4 -0.934 -0.937 0.000
H5 -0.377 1.379 0.897
H6 -0.377 1.379 -0.897
H7 1.838 0.150 0.882
H8 1.838 0.150 -0.882
H9 3.319 1.992 0.000
H10 1.957 2.701 -0.889
H11 1.957 2.701 0.889

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.53752.54692.04461.09301.09302.16642.16643.49982.81592.8159
C21.53751.55512.97242.20632.20631.09771.09772.19202.20792.2079
C32.54691.55514.39502.85262.85262.18872.18871.09781.09891.0989
Br42.04462.97244.39502.54502.54503.10623.10625.16414.73114.7311
H51.09302.20632.85262.54501.79492.53343.09613.85303.22312.6827
H61.09302.20632.85262.54501.79493.09612.53343.85302.68273.2231
H72.16641.09772.18873.10622.53343.09611.76482.52223.10772.5535
H82.16641.09772.18873.10623.09612.53341.76482.52222.55353.1077
H93.49982.19201.09785.16413.85303.85302.52222.52221.77481.7748
H102.81592.20791.09894.73113.22312.68273.10772.55351.77481.7779
H112.81592.20791.09894.73112.68273.22312.55353.10771.77481.7779

picture of n-propyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.878 C1 C2 H7 109.454
C1 C2 H8 109.454 C2 C1 Br4 111.367
C2 C1 H5 112.927 C2 C1 H6 112.927
C2 C3 H9 110.248 C2 C3 H10 111.434
C2 C3 H11 111.434 C3 C2 H7 109.988
C3 C2 H8 109.988 Br4 C1 H5 104.273
Br4 C1 H6 104.273 H5 C1 H6 110.393
H7 C2 H8 106.996 H9 C3 H10 107.793
H9 C3 H11 107.793 H10 C3 H11 107.987
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.541      
2 C -0.155      
3 C -0.476      
4 Br 0.020      
5 H 0.193      
6 H 0.193      
7 H 0.155      
8 H 0.155      
9 H 0.162      
10 H 0.147      
11 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.482 2.178 0.000 2.634
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.659 0.028 0.000
y 0.028 -34.981 0.000
z 0.000 0.000 -35.619
Traceless
 xyz
x -0.359 0.028 0.000
y 0.028 0.658 0.000
z 0.000 0.000 -0.299
Polar
3z2-r2-0.599
x2-y2-0.678
xy0.028
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.877 2.478 0.000
y 2.478 8.992 0.000
z 0.000 0.000 5.410


<r2> (average value of r2) Å2
<r2> 139.581
(<r2>)1/2 11.814