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All results from a given calculation for CH3CHCH3 (Isopropyl radical)

using model chemistry: mPW1PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at mPW1PW91/TZVP
 hartrees
Energy at 0K-118.489721
Energy at 298.15K-118.495861
HF Energy-118.489721
Nuclear repulsion energy75.668742
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 mPW1PW91/TZVP
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' 3200 3053 24.82      
2 A' 3124 2981 16.69      
3 A' 3054 2914 47.42      
4 A' 2981 2844 45.61      
5 A' 1496 1427 5.13      
6 A' 1483 1415 18.93      
7 A' 1416 1351 5.47      
8 A' 1184 1129 2.87      
9 A' 1030 983 0.04      
10 A' 900 858 2.27      
11 A' 394 376 14.94      
12 A' 352 336 17.35      
13 A' 119 114 1.02      
14 A" 3125 2982 24.20      
15 A" 3054 2913 6.13      
16 A" 2977 2840 26.39      
17 A" 1482 1414 1.35      
18 A" 1472 1404 1.72      
19 A" 1419 1354 10.59      
20 A" 1371 1308 1.01      
21 A" 1164 1110 0.22      
22 A" 948 904 1.18      
23 A" 941 898 0.07      
24 A" 115 110 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19400.2 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 18507.8 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 mPW1PW91/TZVP
ABC
1.25533 0.28043 0.25054

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.534 0.000
C2 -0.010 -0.197 1.290
C3 -0.010 -0.197 -1.290
H4 0.204 1.596 0.000
H5 -0.764 -0.991 1.301
H6 -0.764 -0.991 -1.301
H7 0.955 -0.691 1.483
H8 -0.204 0.464 2.135
H9 0.955 -0.691 -1.483
H10 -0.204 0.464 -2.135

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48311.48311.08322.14192.14192.15202.14542.15202.1454
C21.48312.58032.21951.09512.81291.10071.09072.97753.4943
C31.48312.58032.21952.81291.09512.97753.49431.10071.0907
H41.08322.21952.21953.05353.05352.82722.45122.82722.4512
H52.14191.09512.81293.05352.60161.75421.76863.28563.7735
H62.14192.81291.09513.05352.60163.28563.77351.75421.7686
H72.15201.10072.97752.82721.75423.28561.76152.96643.9714
H82.14541.09073.49432.45121.76863.77351.76153.97144.2709
H92.15202.97751.10072.82723.28561.75422.96643.97141.7615
H102.14543.49431.09072.45123.77351.76863.97144.27091.7615

picture of Isopropyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.476 C1 C2 H7 111.947
C1 C2 H8 112.034 C1 C3 H6 111.476
C1 C3 H9 111.947 C1 C3 H10 112.034
C2 C1 C3 120.899 C2 C1 H4 118.912
C3 C1 H4 118.912 H5 C2 H7 106.054
H5 C2 H8 108.021 H6 C3 H9 106.054
H6 C3 H10 108.021 H7 C2 H8 106.991
H9 C3 H10 106.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.153      
2 C -0.350      
3 C -0.350      
4 H 0.134      
5 H 0.117      
6 H 0.117      
7 H 0.117      
8 H 0.125      
9 H 0.117      
10 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.184 -0.141 0.000 0.232
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.601 0.350 0.000
y 0.350 -20.594 0.000
z 0.000 0.000 -20.593
Traceless
 xyz
x -1.008 0.350 0.000
y 0.350 0.503 0.000
z 0.000 0.000 0.505
Polar
3z2-r21.009
x2-y2-1.007
xy0.350
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.773 -0.028 0.000
y -0.028 5.413 0.000
z 0.000 0.000 6.170


<r2> (average value of r2) Å2
<r2> 61.145
(<r2>)1/2 7.819