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 CH3CHBrCH3 (i-propyl bromide)

using model chemistry: HF/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 HF/6-311G*
 hartrees
Energy at 0K-2690.077635
Energy at 298.15K-2690.088337
HF Energy-2690.077635
Nuclear repulsion energy250.675637
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 HF/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' 3299 2983 48.27      
2 A' 3271 2958 19.16      
3 A' 3248 2937 33.55      
4 A' 3186 2881 52.99      
5 A' 1640 1483 6.80      
6 A' 1627 1472 7.32      
7 A' 1561 1412 3.44      
8 A' 1383 1251 74.92      
9 A' 1288 1165 30.79      
10 A' 1160 1049 10.82      
11 A' 945 855 11.52      
12 A' 575 520 36.83      
13 A' 433 392 2.78      
14 A' 322 291 3.20      
15 A' 284 257 0.95      
16 A" 3275 2962 21.94      
17 A" 3244 2934 7.28      
18 A" 3178 2874 15.74      
19 A" 1619 1465 0.57      
20 A" 1616 1461 2.54      
21 A" 1550 1402 6.09      
22 A" 1483 1341 0.51      
23 A" 1229 1111 0.48      
24 A" 1034 935 0.00      
25 A" 1023 925 1.18      
26 A" 308 278 0.57      
27 A" 265 240 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 22021.5 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 19916.3 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 HF/6-311G*
ABC
0.26874 0.09611 0.07577

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.908 -0.439 0.000
Br2 -0.674 0.758 0.000
H3 1.737 0.251 0.000
C4 0.908 -1.271 1.270
C5 0.908 -1.271 -1.270
H6 0.043 -1.921 1.312
H7 1.801 -1.890 1.290
H8 0.910 -0.646 2.154
H9 0.043 -1.921 -1.312
H10 1.801 -1.890 -1.290
H11 0.910 -0.646 -2.154

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.98401.07851.51821.51822.16052.13732.16392.16052.13732.1639
Br21.98402.46342.86922.86923.06863.84763.02003.06863.84763.0200
H31.07852.46342.14852.14853.05132.50112.47563.05132.50112.4756
C41.51822.86922.14852.54061.08331.08691.08192.80042.78173.4806
C51.51822.86922.14852.54062.80042.78173.48061.08331.08691.0819
H62.16053.06863.05131.08332.80041.75821.75632.62503.14093.7937
H72.13733.84762.50111.08692.78171.75821.75703.14092.58073.7689
H82.16393.02002.47561.08193.48061.75631.75703.79373.76894.3078
H92.16053.06863.05132.80041.08332.62503.14093.79371.75821.7563
H102.13733.84762.50112.78171.08693.14092.58073.76891.75821.7570
H112.16393.02002.47563.48061.08193.79373.76894.30781.75631.7570

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 111.193 C1 C4 H7 109.135
C1 C4 H8 111.554 C1 C5 H9 111.193
C1 C5 H10 109.135 C1 C5 H11 111.554
Br2 C1 H3 103.084 Br2 C1 C4 109.304
Br2 C1 C5 109.304 H3 C1 C4 110.517
H3 C1 C5 110.517 C4 C1 C5 113.585
H6 C4 H7 108.218 H6 C4 H8 108.419
H7 C4 H8 108.219 H9 C5 H10 108.218
H9 C5 H11 108.419 H10 C5 H11 108.219
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.300      
2 Br -0.130      
3 H 0.255      
4 C -0.589      
5 C -0.589      
6 H 0.227      
7 H 0.214      
8 H 0.236      
9 H 0.227      
10 H 0.214      
11 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.021 -1.688 0.000 2.633
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.796 -0.547 0.000
y -0.547 -39.151 0.000
z 0.000 0.000 -38.980
Traceless
 xyz
x 1.269 -0.547 0.000
y -0.547 -0.763 0.000
z 0.000 0.000 -0.506
Polar
3z2-r2-1.012
x2-y21.355
xy-0.547
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.591 -1.836 0.000
y -1.836 7.537 0.000
z 0.000 0.000 6.536


<r2> (average value of r2) Å2
<r2> 157.531
(<r2>)1/2 12.551