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

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 C2 2A
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-118.298557
Energy at 298.15K-118.304633
HF Energy-118.298557
Nuclear repulsion energy74.901565
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
4/u)
Dep P Dep U
1 A' 3101 3083 27.33      
2 A' 3041 3023 13.52      
3 A' 2966 2949 42.99      
4 A' 2872 2855 48.41      
5 A' 1410 1402 3.45      
6 A' 1397 1389 12.61      
7 A' 1335 1328 3.91      
8 A' 1129 1122 2.82      
9 A' 980 974 0.55      
10 A' 881 876 2.38      
11 A' 401 399 15.25      
12 A' 357 355 6.00      
13 A' 121 121 0.09      
14 A" 3043 3025 20.46      
15 A" 2966 2949 8.44      
16 A" 2866 2849 33.49      
17 A" 1401 1393 0.09      
18 A" 1388 1380 2.55      
19 A" 1348 1340 7.45      
20 A" 1299 1291 1.98      
21 A" 1137 1130 0.21      
22 A" 897 891 0.79      
23 A" 889 884 1.16      
24 A" 111 110 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 18667.2 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 18558.9 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 PBEPBE/cc-pVDZ
ABC
1.23271 0.27559 0.24644

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 -0.012 0.535 0.000
C2 -0.012 -0.196 1.299
C3 -0.012 -0.196 -1.299
H4 0.234 1.609 0.000
H5 -0.734 -1.044 1.295
H6 -0.734 -1.044 -1.295
H7 0.985 -0.653 1.529
H8 -0.260 0.464 2.154
H9 0.985 -0.653 -1.529
H10 -0.260 0.464 -2.154

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49051.49051.10242.16562.16562.17812.16982.17812.1698
C21.49052.59802.23781.11322.82301.12101.10883.03373.5248
C31.49052.59802.23782.82301.11323.03373.52481.12101.1088
H41.10242.23782.23783.10693.10692.83212.48932.83212.4893
H52.16561.11322.82303.10692.59061.77871.79913.32983.7947
H62.16562.82301.11323.10692.59063.32983.79471.77871.7991
H72.17811.12103.03372.83211.77873.32981.78573.05884.0459
H82.16981.10883.52482.48931.79913.79471.78574.04594.3090
H92.17813.03371.12102.83213.32981.77873.05884.04591.7857
H102.16983.52481.10882.48933.79471.79914.04594.30901.7857

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 111.741 C1 C2 H7 112.265
C1 C2 H8 112.356 C1 C3 H6 111.741
C1 C3 H9 112.265 C1 C3 H10 112.356
C2 C1 C3 121.271 C2 C1 H4 118.553
C3 C1 H4 118.553 H5 C2 H7 105.519
H5 C2 H8 108.133 H6 C3 H9 105.519
H6 C3 H10 108.133 H7 C2 H8 106.424
H9 C3 H10 106.424
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 -0.167      
2 C -0.034      
3 C -0.034      
4 H 0.008      
5 H 0.035      
6 H 0.035      
7 H 0.041      
8 H 0.037      
9 H 0.041      
10 H 0.037      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.172 -0.154 0.000 0.230
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.550 0.292 0.000
y 0.292 -20.606 0.000
z 0.000 0.000 -20.474
Traceless
 xyz
x -1.010 0.292 0.000
y 0.292 0.406 0.000
z 0.000 0.000 0.605
Polar
3z2-r21.209
x2-y2-0.944
xy0.292
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.335 0.053 0.000
y 0.053 5.290 0.000
z 0.000 0.000 6.393


<r2> (average value of r2) Å2
<r2> 62.046
(<r2>)1/2 7.877