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

using model chemistry: CCSD/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/cc-pVDZ
 hartrees
Energy at 0K-118.106778
Energy at 298.15K-118.113011
HF Energy-117.644777
Nuclear repulsion energy74.779006
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/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' 3190 3022 30.32      
2 A' 3137 2972 19.04      
3 A' 3082 2919 49.60      
4 A' 3001 2843 39.76      
5 A' 1488 1410 3.20      
6 A' 1481 1403 11.12      
7 A' 1417 1342 2.48      
8 A' 1184 1122 1.82      
9 A' 1042 987 0.13      
10 A' 900 852 1.56      
11 A' 424 402 16.01      
12 A' 355 336 4.86      
13 A' 151 143 0.08      
14 A" 3138 2973 22.69      
15 A" 3081 2919 6.23      
16 A" 2997 2839 27.94      
17 A" 1480 1402 0.08      
18 A" 1471 1394 1.48      
19 A" 1429 1353 5.49      
20 A" 1367 1295 3.89      
21 A" 1163 1101 0.00      
22 A" 942 892 0.49      
23 A" 936 887 0.40      
24 A" 121 115 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19488.1 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 18461.1 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/cc-pVDZ
ABC
1.21604 0.27482 0.24545

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 0.548 0.000
C2 -0.014 -0.201 1.303
C3 -0.014 -0.201 -1.303
H4 0.315 1.596 0.000
H5 -0.770 -1.011 1.298
H6 -0.770 -1.011 -1.298
H7 0.969 -0.686 1.499
H8 -0.227 0.464 2.159
H9 0.969 -0.686 -1.499
H10 -0.227 0.464 -2.159

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50331.50331.09832.16502.16502.17582.17092.17582.1709
C21.50332.60642.24421.10742.82751.11311.10443.00863.5317
C31.50332.60642.24422.82751.10743.00863.53171.11311.1044
H41.09832.24422.24423.10773.10772.80692.49712.80692.4971
H52.16501.10742.82753.10772.59681.78001.79173.30943.7977
H62.16502.82751.10743.10772.59683.30943.79771.78001.7917
H72.17581.11313.00862.80691.78003.30941.78502.99754.0160
H82.17091.10443.53172.49711.79173.79771.78504.01604.3176
H92.17583.00861.11312.80693.30941.78002.99754.01601.7850
H102.17093.53171.10442.49713.79771.79174.01604.31761.7850

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 111.142 C1 C2 H7 111.661
C1 C2 H8 111.800 C1 C3 H6 111.142
C1 C3 H9 111.661 C1 C3 H10 111.800
C2 C1 C3 120.202 C2 C1 H4 118.396
C3 C1 H4 118.396 H5 C2 H7 106.570
H5 C2 H8 108.205 H6 C3 H9 106.570
H6 C3 H10 108.205 H7 C2 H8 107.213
H9 C3 H10 107.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability