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: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-2692.644825
Energy at 298.15K-2692.655232
HF Energy-2692.644825
Nuclear repulsion energy235.343365
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/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' 3132 3023 21.61      
2 A' 3094 2985 16.77      
3 A' 3059 2952 10.26      
4 A' 3042 2935 25.50      
5 A' 1480 1428 5.43      
6 A' 1465 1414 1.18      
7 A' 1458 1407 2.08      
8 A' 1394 1345 0.78      
9 A' 1348 1300 4.19      
10 A' 1232 1189 41.28      
11 A' 1116 1077 1.01      
12 A' 1055 1018 1.11      
13 A' 912 880 10.53      
14 A' 656 633 24.77      
15 A' 309 298 1.80      
16 A' 211 204 1.39      
17 A" 3164 3054 10.50      
18 A" 3126 3016 30.13      
19 A" 3099 2990 0.70      
20 A" 1467 1416 8.17      
21 A" 1303 1258 0.01      
22 A" 1225 1182 0.14      
23 A" 1045 1008 2.20      
24 A" 849 819 0.05      
25 A" 749 722 5.11      
26 A" 240 232 0.06      
27 A" 116 112 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 20671.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19948.2 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/cc-pVDZ
ABC
0.84526 0.05410 0.05235

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.836 0.000
C2 1.508 0.678 0.000
C3 2.211 2.034 0.000
Br4 -0.926 -0.896 0.000
H5 -0.365 1.360 0.894
H6 -0.365 1.360 -0.894
H7 1.811 0.093 0.883
H8 1.811 0.093 -0.883
H9 3.304 1.907 0.000
H10 1.946 2.629 -0.890
H11 1.946 2.629 0.890

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.51632.51471.96401.09881.09882.14812.14813.47332.79132.7913
C21.51631.52732.89882.18462.18461.10241.10242.17602.18792.1879
C32.51471.52734.29262.80872.80872.17042.17041.10071.10231.1023
Br41.96402.89884.29262.49102.49103.04143.04145.07444.63274.6327
H51.09882.18462.80872.49101.78812.51873.08263.81583.18282.6360
H61.09882.18462.80872.49101.78813.08262.51873.81582.63603.1828
H72.14811.10242.17043.04142.51873.08261.76642.51003.09732.5398
H82.14811.10242.17043.04143.08262.51871.76642.51002.53983.0973
H93.47332.17601.10075.07443.81583.81582.51002.51001.77701.7770
H102.79132.18791.10234.63273.18282.63603.09732.53981.77701.7794
H112.79132.18791.10234.63272.63603.18282.53983.09731.77701.7794

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 111.429 C1 C2 H7 109.204
C1 C2 H8 109.204 C2 C1 Br4 112.157
C2 C1 H5 112.332 C2 C1 H6 112.332
C2 C3 H9 110.744 C2 C3 H10 111.595
C2 C3 H11 111.595 C3 C2 H7 110.196
C3 C2 H8 110.196 Br4 C1 H5 105.319
Br4 C1 H6 105.319 H5 C1 H6 108.910
H7 C2 H8 106.480 H9 C3 H10 107.539
H9 C3 H11 107.539 H10 C3 H11 107.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.143      
2 C -0.076      
3 C -0.094      
4 Br -0.123      
5 H 0.091      
6 H 0.091      
7 H 0.055      
8 H 0.055      
9 H 0.050      
10 H 0.047      
11 H 0.047      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.291 1.786 0.000 2.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.271 0.144 0.000
y 0.144 -37.517 0.000
z 0.000 0.000 -38.284
Traceless
 xyz
x -0.371 0.144 0.000
y 0.144 0.761 0.000
z 0.000 0.000 -0.390
Polar
3z2-r2-0.780
x2-y2-0.754
xy0.144
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.901 1.901 0.000
y 1.901 8.371 0.000
z 0.000 0.000 5.815


<r2> (average value of r2) Å2
<r2> 207.847
(<r2>)1/2 14.417