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

using model chemistry: CCSD/aug-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 CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-118.126140
Energy at 298.15K-118.132317
HF Energy-117.648516
Nuclear repulsion energy74.777595
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 CCSD/aug-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' 3187 3071 28.51      
2 A' 3112 2998 20.93      
3 A' 3051 2940 49.18      
4 A' 2977 2868 45.60      
5 A' 1481 1427 3.97      
6 A' 1473 1419 10.95      
7 A' 1405 1354 2.53      
8 A' 1179 1136 1.42      
9 A' 1027 989 0.34      
10 A' 894 862 1.56      
11 A' 400 385 13.27      
12 A' 340 327 11.74      
13 A' 147 142 0.43      
14 A" 3113 2999 27.35      
15 A" 3051 2940 5.41      
16 A" 2973 2865 26.05      
17 A" 1471 1417 0.07      
18 A" 1461 1408 1.17      
19 A" 1419 1367 7.18      
20 A" 1361 1311 2.57      
21 A" 1156 1114 0.00      
22 A" 935 901 0.76      
23 A" 931 897 0.01      
24 A" 117 113 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19330.9 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 18623.3 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 CCSD/aug-cc-pVDZ
ABC
1.21318 0.27494 0.24530

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.550 0.000
C2 -0.013 -0.202 1.304
C3 -0.013 -0.202 -1.304
H4 0.284 1.604 0.000
H5 -0.789 -0.991 1.308
H6 -0.789 -0.991 -1.308
H7 0.959 -0.712 1.481
H8 -0.195 0.466 2.162
H9 0.959 -0.712 -1.481
H10 -0.195 0.466 -2.162

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50491.50491.09582.16482.16482.17482.17082.17482.1708
C21.50492.60722.24761.10652.83631.11181.10292.99303.5338
C31.50492.60722.24762.83631.10652.99303.53381.11181.1029
H41.09582.24762.24763.09813.09812.83102.48942.83102.4894
H52.16481.10652.83633.09812.61581.77861.79033.30313.8097
H62.16482.83631.10653.09812.61583.30313.80971.77861.7903
H72.17481.11182.99302.83101.77863.30311.78452.96163.9985
H82.17081.10293.53382.48941.79033.80971.78453.99854.3231
H92.17482.99301.11182.83103.30311.77862.96163.99851.7845
H102.17083.53381.10292.48943.80971.79033.99854.32311.7845

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 111.070 C1 C2 H7 111.541
C1 C2 H8 111.775 C1 C3 H6 111.070
C1 C3 H9 111.541 C1 C3 H10 111.775
C2 C1 C3 120.050 C2 C1 H4 118.745
C3 C1 H4 118.745 H5 C2 H7 106.601
H5 C2 H8 108.253 H6 C3 H9 106.601
H6 C3 H10 108.253 H7 C2 H8 107.364
H9 C3 H10 107.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability