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

using model chemistry: CCSD=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-118.191798
Energy at 298.15K-118.198062
HF Energy-117.652584
Nuclear repulsion energy75.541106
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=FULL/6-31G(2df,p)
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' 3239 3049 21.48      
2 A' 3170 2985 16.62      
3 A' 3118 2936 37.17      
4 A' 3041 2864 28.83      
5 A' 1540 1450 3.79      
6 A' 1532 1443 11.01      
7 A' 1454 1369 3.22      
8 A' 1209 1139 2.96      
9 A' 1064 1002 0.07      
10 A' 910 857 1.58      
11 A' 423 399 15.37      
12 A' 354 333 6.75      
13 A' 148 139 0.11      
14 A" 3170 2985 17.71      
15 A" 3117 2935 5.03      
16 A" 3038 2860 19.48      
17 A" 1530 1441 0.39      
18 A" 1520 1432 0.85      
19 A" 1455 1370 6.41      
20 A" 1400 1318 3.49      
21 A" 1179 1110 0.00      
22 A" 969 912 0.78      
23 A" 959 903 0.34      
24 A" 130 122 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19834.4 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 18676.1 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=FULL/6-31G(2df,p)
ABC
1.24100 0.27994 0.24987

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 0.545 0.000
C2 -0.014 -0.200 1.292
C3 -0.014 -0.200 -1.292
H4 0.300 1.581 0.000
H5 -0.765 -0.994 1.290
H6 -0.765 -0.994 -1.290
H7 0.953 -0.685 1.480
H8 -0.215 0.455 2.139
H9 0.953 -0.685 -1.480
H10 -0.215 0.455 -2.139

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49141.49141.08232.14402.14402.15402.15072.15402.1507
C21.49142.58382.22261.09272.80341.09811.09002.97573.4990
C31.49142.58382.22262.80341.09272.97573.49901.09811.0900
H41.08232.22262.22263.07043.07042.78462.47192.78462.4719
H52.14401.09272.80343.07042.57961.75571.76723.27403.7631
H62.14402.80341.09273.07042.57963.27403.76311.75571.7672
H72.15401.09812.97572.78461.75573.27401.76072.96033.9707
H82.15071.09003.49902.47191.76723.76311.76073.97074.2787
H92.15402.97571.09812.78463.27401.75572.96033.97071.7607
H102.15073.49901.09002.47193.76311.76723.97074.27871.7607

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 111.187 C1 C2 H7 111.669
C1 C2 H8 111.910 C1 C3 H6 111.187
C1 C3 H9 111.669 C1 C3 H10 111.910
C2 C1 C3 120.040 C2 C1 H4 118.574
C3 C1 H4 118.574 H5 C2 H7 106.524
H5 C2 H8 108.123 H6 C3 H9 106.524
H6 C3 H10 108.123 H7 C2 H8 107.165
H9 C3 H10 107.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability