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

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-2679.611114
Energy at 298.15K-2679.621463
HF Energy-2679.611114
Nuclear repulsion energy245.462066
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 BLYP/3-21G
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' 3073 3056 36.12      
2 A' 3047 3030 11.35      
3 A' 3030 3014 8.20      
4 A' 2970 2953 30.40      
5 A' 1535 1526 7.33      
6 A' 1521 1512 8.70      
7 A' 1432 1424 4.55      
8 A' 1250 1243 43.78      
9 A' 1176 1170 40.48      
10 A' 1053 1047 8.12      
11 A' 855 851 9.22      
12 A' 529 526 14.81      
13 A' 397 395 1.32      
14 A' 286 284 2.74      
15 A' 249 248 0.60      
16 A" 3061 3044 13.24      
17 A" 3031 3015 7.19      
18 A" 2963 2947 7.81      
19 A" 1514 1506 1.45      
20 A" 1508 1499 2.61      
21 A" 1418 1410 9.85      
22 A" 1350 1342 3.43      
23 A" 1107 1101 4.18      
24 A" 963 957 2.83      
25 A" 939 934 0.03      
26 A" 274 273 0.78      
27 A" 234 233 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 20382.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 20269.9 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 BLYP/3-21G
ABC
0.26189 0.09153 0.07263

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.464 -0.939 0.000
Br2 -0.067 1.038 0.000
H3 1.562 -0.904 0.000
C4 -0.067 -1.597 1.285
C5 -0.067 -1.597 -1.285
H6 -1.168 -1.563 1.308
H7 0.255 -2.654 1.310
H8 0.321 -1.089 2.181
H9 -1.168 -1.563 -1.308
H10 0.255 -2.654 -1.310
H11 0.321 -1.089 -2.181

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.04681.09801.53861.53862.18242.16842.19102.18242.16842.1910
Br22.04682.53442.93142.93143.11213.93073.07123.11213.93073.0712
H31.09802.53442.18752.18753.09742.54682.51623.09742.54682.5162
C41.53862.93142.18752.57071.10131.10571.10032.81722.82093.5249
C51.53862.93142.18752.57072.81722.82093.52491.10131.10571.1003
H62.18243.11213.09741.10132.81721.79311.78972.61563.17293.8227
H72.16843.93072.54681.10572.82091.79311.79243.17292.61983.8263
H82.19103.07122.51621.10033.52491.78971.79243.82273.82634.3623
H92.18243.11213.09742.81721.10132.61563.17293.82271.79311.7897
H102.16843.93072.54682.82091.10573.17292.61983.82631.79311.7924
H112.19103.07122.51623.52491.10033.82273.82634.36231.78971.7924

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 110.421 C1 C4 H7 109.078
C1 C4 H8 111.166 C1 C5 H9 110.421
C1 C5 H10 109.078 C1 C5 H11 111.166
Br2 C1 H3 103.227 Br2 C1 C4 108.865
Br2 C1 C5 108.865 H3 C1 C4 111.021
H3 C1 C5 111.021 C4 C1 C5 113.314
H6 C4 H7 108.677 H6 C4 H8 108.764
H7 C4 H8 108.682 H9 C5 H10 108.677
H9 C5 H11 108.764 H10 C5 H11 108.682
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.398      
2 Br -0.001      
3 H 0.231      
4 C -0.494      
5 C -0.494      
6 H 0.196      
7 H 0.184      
8 H 0.197      
9 H 0.196      
10 H 0.184      
11 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.426 -2.091 0.000 2.134
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.184 -0.595 0.000
y -0.595 -37.162 0.000
z 0.000 0.000 -38.079
Traceless
 xyz
x -0.564 -0.595 0.000
y -0.595 0.970 0.000
z 0.000 0.000 -0.406
Polar
3z2-r2-0.812
x2-y2-1.022
xy-0.595
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.894 -0.557 0.000
y -0.557 8.764 0.000
z 0.000 0.000 5.624


<r2> (average value of r2) Å2
<r2> 162.559
(<r2>)1/2 12.750