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: B3PW91/6-31G*

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-2690.191547
Energy at 298.15K-2690.201951
HF Energy-2690.191547
Nuclear repulsion energy235.619475
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' 3140 3004 26.92      
2 A' 3117 2982 15.84      
3 A' 3074 2941 10.89      
4 A' 3057 2925 24.25      
5 A' 1532 1465 6.22      
6 A' 1517 1451 1.26      
7 A' 1508 1443 1.62      
8 A' 1435 1373 2.20      
9 A' 1378 1318 5.93      
10 A' 1263 1209 42.34      
11 A' 1127 1079 2.02      
12 A' 1054 1008 1.71      
13 A' 915 875 10.41      
14 A' 657 628 24.66      
15 A' 309 296 1.96      
16 A' 213 204 1.57      
17 A" 3186 3048 11.64      
18 A" 3136 3000 36.11      
19 A" 3111 2976 0.08      
20 A" 1524 1458 8.94      
21 A" 1330 1273 0.01      
22 A" 1252 1198 0.25      
23 A" 1067 1021 2.27      
24 A" 860 822 0.04      
25 A" 751 718 5.03      
26 A" 239 229 0.03      
27 A" 118 113 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 20934.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 20027.8 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
0.84393 0.05425 0.05247

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 0.000 0.843 0.000
C2 1.507 0.666 0.000
C3 2.226 2.016 0.000
Br4 -0.930 -0.889 0.000
H5 -0.357 1.363 0.891
H6 -0.357 1.363 -0.891
H7 1.801 0.081 0.879
H8 1.801 0.081 -0.879
H9 3.312 1.875 0.000
H10 1.968 2.608 -0.886
H11 1.968 2.608 0.886

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.51762.51651.96571.09171.09172.14382.14383.46912.78822.7882
C21.51761.53002.89072.18042.18041.09621.09622.17232.18422.1842
C32.51651.53004.28962.80892.80892.16832.16831.09531.09641.0964
Br41.96572.89074.28962.48922.48923.02783.02785.06274.62734.6273
H51.09172.18042.80892.48921.78152.50973.07113.80973.17942.6367
H61.09172.18042.80892.48921.78153.07112.50973.80972.63673.1794
H72.14381.09622.16833.02782.50973.07111.75892.50533.08772.5331
H82.14381.09622.16833.02783.07112.50971.75892.50532.53313.0877
H93.46912.17231.09535.06273.80973.80972.50532.50531.76941.7694
H102.78822.18421.09644.62733.17942.63673.08772.53311.76941.7721
H112.78822.18421.09644.62732.63673.17942.53313.08771.76941.7721

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 111.324 C1 C2 H7 109.144
C1 C2 H8 109.144 C2 C1 Br4 111.527
C2 C1 H5 112.337 C2 C1 H6 112.337
C2 C3 H9 110.585 C2 C3 H10 111.460
C2 C3 H11 111.460 C3 C2 H7 110.209
C3 C2 H8 110.209 Br4 C1 H5 105.415
Br4 C1 H6 105.415 H5 C1 H6 109.361
H7 C2 H8 106.689 H9 C3 H10 107.669
H9 C3 H11 107.669 H10 C3 H11 107.826
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 -0.341      
2 C -0.311      
3 C -0.520      
4 Br -0.147      
5 H 0.210      
6 H 0.210      
7 H 0.186      
8 H 0.186      
9 H 0.182      
10 H 0.173      
11 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.334 1.843 0.000 2.275
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.155 0.076 0.000
y 0.076 -37.280 0.000
z 0.000 0.000 -38.088
Traceless
 xyz
x -0.471 0.076 0.000
y 0.076 0.842 0.000
z 0.000 0.000 -0.370
Polar
3z2-r2-0.741
x2-y2-0.875
xy0.076
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.795 1.731 0.000
y 1.731 8.098 0.000
z 0.000 0.000 5.970


<r2> (average value of r2) Å2
<r2> 207.239
(<r2>)1/2 14.396