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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-2660.975757
Energy at 298.15K-2660.986330
HF Energy-2660.975757
Nuclear repulsion energy251.612051
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/STO-3G
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' 3761 3071 0.59      
2 A' 3751 3063 0.37      
3 A' 3643 2975 2.14      
4 A' 3570 2915 1.04      
5 A' 1830 1494 1.37      
6 A' 1825 1490 2.75      
7 A' 1736 1417 0.62      
8 A' 1546 1263 58.37      
9 A' 1407 1149 12.76      
10 A' 1274 1040 8.45      
11 A' 1070 874 2.28      
12 A' 725 592 8.92      
13 A' 458 374 0.59      
14 A' 337 275 0.61      
15 A' 266 217 0.11      
16 A" 3759 3069 0.11      
17 A" 3749 3061 0.11      
18 A" 3570 2915 0.76      
19 A" 1822 1488 0.77      
20 A" 1820 1486 0.04      
21 A" 1726 1409 0.03      
22 A" 1616 1319 7.04      
23 A" 1339 1093 3.09      
24 A" 1148 937 0.34      
25 A" 1115 910 0.69      
26 A" 321 262 1.25      
27 A" 248 203 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24713.9 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 20178.9 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/STO-3G
ABC
0.26606 0.09729 0.07632

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.862 -0.434 0.000
Br2 -0.642 0.776 0.000
H3 1.759 0.187 0.000
C4 0.862 -1.303 1.278
C5 0.862 -1.303 -1.278
H6 -0.025 -1.928 1.319
H7 1.737 -1.946 1.283
H8 0.887 -0.679 2.167
H9 -0.025 -1.928 -1.319
H10 1.737 -1.946 -1.283
H11 0.887 -0.679 -2.167

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.93011.09131.54511.54512.18102.16732.18042.18102.16732.1804
Br21.93012.47232.86602.86603.07073.83603.02473.07073.83603.0247
H31.09132.47232.15782.15783.06492.48862.49053.06492.48862.4905
C41.54512.86602.15782.55611.08581.08681.08582.81482.78173.5007
C51.54512.86602.15782.55612.81482.78173.50071.08581.08681.0858
H62.18103.07073.06491.08582.81481.76321.76352.63833.14273.8134
H72.16733.83602.48861.08682.78171.76321.76343.14272.56523.7715
H82.18043.02472.49051.08583.50071.76351.76343.81343.77154.3330
H92.18103.07073.06492.81481.08582.63833.14273.81341.76321.7635
H102.16733.83602.48862.78171.08683.14272.56523.77151.76321.7634
H112.18043.02472.49053.50071.08583.81343.77154.33301.76351.7634

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 110.779 C1 C4 H7 109.642
C1 C4 H8 110.740 C1 C5 H9 110.779
C1 C5 H10 109.642 C1 C5 H11 110.740
Br2 C1 H3 106.494 Br2 C1 C4 110.629
Br2 C1 C5 110.629 H3 C1 C4 108.644
H3 C1 C5 108.644 C4 C1 C5 111.624
H6 C4 H7 108.497 H6 C4 H8 108.601
H7 C4 H8 108.519 H9 C5 H10 108.497
H9 C5 H11 108.601 H10 C5 H11 108.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.055      
2 Br -0.067      
3 H 0.074      
4 C -0.178      
5 C -0.178      
6 H 0.068      
7 H 0.065      
8 H 0.070      
9 H 0.068      
10 H 0.065      
11 H 0.070      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.400 -1.236 0.000 1.867
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.347 0.020 0.000
y 0.020 -36.039 0.000
z 0.000 0.000 -35.808
Traceless
 xyz
x 0.576 0.020 0.000
y 0.020 -0.462 0.000
z 0.000 0.000 -0.114
Polar
3z2-r2-0.229
x2-y20.692
xy0.020
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.586 -1.121 0.000
y -1.121 3.417 0.000
z 0.000 0.000 2.605


<r2> (average value of r2) Å2
<r2> 155.094
(<r2>)1/2 12.454