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: B97D3/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-2694.037647
Energy at 298.15K-2694.047953
HF Energy-2694.037647
Nuclear repulsion energy248.682617
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 B97D3/aug-cc-pVTZ
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' 3080 3033 25.91      
2 A' 3054 3007 22.84      
3 A' 3036 2990 5.59      
4 A' 2976 2931 38.67      
5 A' 1476 1454 5.42      
6 A' 1460 1437 10.46      
7 A' 1389 1368 4.15      
8 A' 1219 1200 35.97      
9 A' 1152 1135 39.77      
10 A' 1031 1015 8.68      
11 A' 865 852 10.62      
12 A' 504 496 20.72      
13 A' 399 393 2.29      
14 A' 283 279 3.87      
15 A' 246 243 0.91      
16 A" 3074 3027 13.14      
17 A" 3041 2994 3.76      
18 A" 2970 2925 12.07      
19 A" 1455 1433 0.07      
20 A" 1447 1425 2.42      
21 A" 1373 1352 10.35      
22 A" 1332 1312 2.06      
23 A" 1120 1103 2.14      
24 A" 930 915 0.97      
25 A" 925 911 0.56      
26 A" 275 271 0.53      
27 A" 225 222 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 20169.2 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 19860.6 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 B97D3/aug-cc-pVTZ
ABC
0.26727 0.09430 0.07462

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.449 -0.927 0.000
Br2 -0.065 1.022 0.000
H3 1.539 -0.874 0.000
C4 -0.065 -1.572 1.273
C5 -0.065 -1.572 -1.273
H6 -1.159 -1.550 1.307
H7 0.258 -2.621 1.296
H8 0.322 -1.072 2.163
H9 -1.159 -1.550 -1.307
H10 0.258 -2.621 -1.296
H11 0.322 -1.072 -2.163

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.01591.09121.51681.51682.16412.14152.17172.16412.14152.1717
Br22.01592.48442.88962.88963.08603.88023.03563.08603.88023.0356
H31.09122.48442.16372.16373.07332.52442.49023.07332.52442.4902
C41.51682.88962.16372.54501.09391.09781.09212.80182.79293.4932
C51.51682.88962.16372.54502.80182.79293.49321.09391.09781.0921
H62.16413.08603.07331.09392.80181.77531.77542.61433.15063.8029
H72.14153.88022.52441.09782.79291.77531.77633.15062.59143.7902
H82.17173.03562.49021.09213.49321.77541.77633.80293.79024.3260
H92.16413.08603.07332.80181.09392.61433.15063.80291.77531.7754
H102.14153.88022.52442.79291.09783.15062.59143.79021.77531.7763
H112.17173.03562.49023.49321.09213.80293.79024.32601.77541.7763

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 110.945 C1 C4 H7 108.920
C1 C4 H8 111.658 C1 C5 H9 110.945
C1 C5 H10 108.920 C1 C5 H11 111.658
Br2 C1 H3 102.038 Br2 C1 C4 108.940
Br2 C1 C5 108.940 H3 C1 C4 111.072
H3 C1 C5 111.072 C4 C1 C5 114.057
H6 C4 H7 108.189 H6 C4 H8 108.620
H7 C4 H8 108.414 H9 C5 H10 108.189
H9 C5 H11 108.620 H10 C5 H11 108.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.118      
2 Br -0.235      
3 H 0.101      
4 C -0.500      
5 C -0.500      
6 H 0.198      
7 H 0.140      
8 H 0.170      
9 H 0.198      
10 H 0.140      
11 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.480 -2.392 0.000 2.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.664 -0.714 0.000
y -0.714 -37.732 0.000
z 0.000 0.000 -38.647
Traceless
 xyz
x -0.475 -0.714 0.000
y -0.714 0.923 0.000
z 0.000 0.000 -0.449
Polar
3z2-r2-0.897
x2-y2-0.932
xy-0.714
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.170 -0.222 0.000
y -0.222 11.509 0.000
z 0.000 0.000 9.310


<r2> (average value of r2) Å2
<r2> 159.317
(<r2>)1/2 12.622