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

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-118.152503
Energy at 298.15K-118.158793
HF Energy-117.676934
Nuclear repulsion energy75.772308
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 CISD/6-311+G(3df,2p)
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' 3268 3012 23.76      
2 A' 3194 2944 19.21      
3 A' 3139 2893 42.54      
4 A' 3068 2828 39.69      
5 A' 1553 1431 5.41      
6 A' 1545 1424 13.72      
7 A' 1474 1359 3.35      
8 A' 1226 1131 2.10      
9 A' 1077 993 0.14      
10 A' 917 845 1.67      
11 A' 422 389 17.47      
12 A' 357 329 9.10      
13 A' 154 142 0.26      
14 A" 3195 2945 24.02      
15 A" 3138 2892 5.51      
16 A" 3064 2825 23.49      
17 A" 1542 1421 0.75      
18 A" 1534 1414 0.94      
19 A" 1477 1362 7.18      
20 A" 1419 1308 2.85      
21 A" 1185 1092 0.00      
22 A" 980 903 0.62      
23 A" 970 894 0.14      
24 A" 125 115 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20009.7 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 18444.9 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 CISD/6-311+G(3df,2p)
ABC
1.24951 0.28124 0.25101

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.544 0.000
C2 -0.013 -0.200 1.290
C3 -0.013 -0.200 -1.290
H4 0.288 1.578 0.000
H5 -0.775 -0.976 1.295
H6 -0.775 -0.976 -1.295
H7 0.943 -0.700 1.464
H8 -0.193 0.456 2.134
H9 0.943 -0.700 -1.464
H10 -0.193 0.456 -2.134

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48891.48891.07682.13702.13702.14552.14342.14552.1434
C21.48892.57962.21681.08752.80431.09261.08422.95733.4908
C31.48892.57962.21682.80431.08752.95733.49081.09261.0842
H41.07682.21682.21683.05413.05412.78542.45832.78542.4583
H52.13701.08752.80433.05412.59011.74811.75883.26173.7614
H62.13702.80431.08753.05412.59013.26173.76141.74811.7588
H72.14551.09262.95732.78541.74813.26171.75352.92773.9459
H82.14341.08423.49082.45831.75883.76141.75353.94594.2681
H92.14552.95731.09262.78543.26171.74812.92773.94591.7535
H102.14343.49081.08422.45833.76141.75883.94594.26811.7535

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 111.130 C1 C2 H7 111.508
C1 C2 H8 111.854 C1 C3 H6 111.130
C1 C3 H9 111.508 C1 C3 H10 111.854
C2 C1 C3 120.058 C2 C1 H4 118.658
C3 C1 H4 118.658 H5 C2 H7 106.618
H5 C2 H8 108.166 H6 C3 H9 106.618
H6 C3 H10 108.166 H7 C2 H8 107.321
H9 C3 H10 107.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability