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: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-2692.110981
Energy at 298.15K-2692.121296
HF Energy-2692.110981
Nuclear repulsion energy248.387421
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3084 3066 15.35      
2 A' 3053 3036 25.87      
3 A' 3025 3007 1.72      
4 A' 2970 2953 26.52      
5 A' 1427 1419 5.18      
6 A' 1410 1402 9.71      
7 A' 1346 1338 3.73      
8 A' 1192 1185 36.12      
9 A' 1127 1120 37.79      
10 A' 1010 1004 10.51      
11 A' 877 872 8.70      
12 A' 520 517 17.94      
13 A' 391 388 1.91      
14 A' 291 289 2.36      
15 A' 257 255 1.34      
16 A" 3081 3063 8.99      
17 A" 3048 3030 2.01      
18 A" 2966 2948 11.00      
19 A" 1404 1396 0.33      
20 A" 1398 1390 1.27      
21 A" 1337 1329 12.99      
22 A" 1297 1290 1.21      
23 A" 1123 1116 2.29      
24 A" 914 909 0.33      
25 A" 900 895 1.38      
26 A" 276 274 0.80      
27 A" 239 238 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 19980.5 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 19864.6 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 PBEPBE/cc-pVDZ
ABC
0.26509 0.09453 0.07466

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.920 -0.445 0.000
Br2 -0.683 0.761 0.000
H3 1.761 0.277 0.000
C4 0.920 -1.273 1.276
C5 0.920 -1.273 -1.276
H6 0.041 -1.948 1.313
H7 1.838 -1.901 1.303
H8 0.910 -0.635 2.179
H9 0.041 -1.948 -1.313
H10 1.838 -1.901 -1.303
H11 0.910 -0.635 -2.179

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.00611.10761.52131.52132.18072.15872.18752.18072.15872.1875
Br22.00612.49122.88752.88753.09643.89073.03903.09643.89073.0390
H31.10762.49122.17652.17653.10302.53872.51073.10302.53872.5107
C41.52132.88752.17652.55151.10851.11171.10642.81552.80833.5135
C51.52132.88752.17652.55152.81552.80833.51351.10851.11171.1064
H62.18073.09643.10301.10852.81551.79711.79722.62523.17373.8303
H72.15873.89072.53871.11172.80831.79711.79723.17372.60663.8198
H82.18753.03902.51071.10643.51351.79721.79723.83033.81984.3584
H92.18073.09643.10302.81551.10852.62523.17373.83031.79711.7972
H102.15873.89072.53872.80831.11173.17372.60663.81981.79711.7972
H112.18753.03902.51073.51351.10643.83033.81984.35841.79721.7972

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 111.064 C1 C4 H7 109.151
C1 C4 H8 111.738 C1 C5 H9 111.064
C1 C5 H10 109.151 C1 C5 H11 111.738
Br2 C1 H3 102.410 Br2 C1 C4 109.114
Br2 C1 C5 109.114 H3 C1 C4 110.783
H3 C1 C5 110.783 C4 C1 C5 113.982
H6 C4 H7 108.073 H6 C4 H8 108.466
H7 C4 H8 108.241 H9 C5 H10 108.073
H9 C5 H11 108.466 H10 C5 H11 108.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.233      
2 Br -0.117      
3 H 0.069      
4 C 0.005      
5 C 0.005      
6 H 0.047      
7 H 0.040      
8 H 0.048      
9 H 0.047      
10 H 0.040      
11 H 0.048      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.655 -1.399 0.000 2.167
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.148 -0.777 0.000
y -0.777 -38.210 0.000
z 0.000 0.000 -38.228
Traceless
 xyz
x 1.071 -0.777 0.000
y -0.777 -0.522 0.000
z 0.000 0.000 -0.549
Polar
3z2-r2-1.097
x2-y21.062
xy-0.777
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.831 -1.815 0.000
y -1.815 7.941 0.000
z 0.000 0.000 7.180


<r2> (average value of r2) Å2
<r2> 159.227
(<r2>)1/2 12.618