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: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-131.690177
Energy at 298.15K-131.700485
HF Energy-131.690177
Nuclear repulsion energy108.780796
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/LANL2DZ
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' 3170 3047 52.06      
2 A' 3141 3019 24.03      
3 A' 3124 3003 14.01      
4 A' 3040 2922 38.42      
5 A' 1527 1468 14.35      
6 A' 1511 1452 14.70      
7 A' 1447 1391 10.20      
8 A' 1262 1213 48.35      
9 A' 1194 1147 52.09      
10 A' 1068 1027 16.58      
11 A' 893 858 9.28      
12 A' 501 482 20.80      
13 A' 400 384 3.04      
14 A' 281 270 4.85      
15 A' 248 238 1.26      
16 A" 3159 3037 18.00      
17 A" 3125 3004 9.54      
18 A" 3034 2917 12.52      
19 A" 1510 1452 3.06      
20 A" 1499 1441 4.71      
21 A" 1431 1376 20.91      
22 A" 1367 1314 2.44      
23 A" 1164 1119 4.08      
24 A" 969 931 0.26      
25 A" 960 922 3.96      
26 A" 274 264 0.39      
27 A" 219 211 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 20759.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 19953.7 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/LANL2DZ
ABC
0.26187 0.09016 0.07170

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.461 -0.965 0.000
Br2 -0.067 1.047 0.000
H3 1.553 -0.908 0.000
C4 -0.067 -1.606 1.286
C5 -0.067 -1.606 -1.286
H6 -1.162 -1.574 1.320
H7 0.248 -2.660 1.319
H8 0.323 -1.102 2.176
H9 -1.162 -1.574 -1.320
H10 0.248 -2.660 -1.319
H11 0.323 -1.102 -2.176

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.08011.09321.53051.53052.17872.15832.18492.17872.15832.1849
Br22.08012.53862.94762.94763.13173.94693.08283.13173.94693.0828
H31.09322.53862.18272.18273.09112.55232.50743.09112.55232.5074
C41.53052.94762.18272.57181.09591.10061.09482.82662.82803.5202
C51.53052.94762.18272.57182.82662.82803.52021.09591.10061.0948
H62.17873.13173.09111.09592.82661.77931.77772.63973.18303.8275
H72.15833.94692.55231.10062.82801.77931.77983.18302.63873.8279
H82.18493.08282.50741.09483.52021.77771.77983.82753.82794.3525
H92.17873.13173.09112.82661.09592.63973.18303.82751.77931.7777
H102.15833.94692.55232.82801.10063.18302.63873.82791.77931.7798
H112.18493.08282.50743.52021.09483.82753.82794.35251.77771.7798

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 111.014 C1 C4 H7 109.133
C1 C4 H8 111.586 C1 C5 H9 111.014
C1 C5 H10 109.133 C1 C5 H11 111.586
Br2 C1 H3 101.707 Br2 C1 C4 108.487
Br2 C1 C5 108.487 H3 C1 C4 111.501
H3 C1 C5 111.501 C4 C1 C5 114.312
H6 C4 H7 108.202 H6 C4 H8 108.483
H7 C4 H8 108.326 H9 C5 H10 108.202
H9 C5 H11 108.483 H10 C5 H11 108.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.291      
2 Br -0.099      
3 H 0.252      
4 C -0.571      
5 C -0.571      
6 H 0.218      
7 H 0.195      
8 H 0.227      
9 H 0.218      
10 H 0.195      
11 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.499 -2.702 0.000 2.748
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.927 -0.789 0.000
y -0.789 -34.009 0.000
z 0.000 0.000 -34.911
Traceless
 xyz
x -0.466 -0.789 0.000
y -0.789 0.910 0.000
z 0.000 0.000 -0.443
Polar
3z2-r2-0.887
x2-y2-0.917
xy-0.789
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.876 -0.755 0.000
y -0.755 9.406 0.000
z 0.000 0.000 5.578


<r2> (average value of r2) Å2
<r2> 131.251
(<r2>)1/2 11.456