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

using model chemistry: B2PLYP=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-117.627385
Energy at 298.15K-117.633613
HF Energy-117.540581
Nuclear repulsion energy75.108713
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 B2PLYP=FULL/3-21G
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' 3213 3059 25.31      
2 A' 3132 2981 16.27      
3 A' 3076 2928 41.98      
4 A' 3002 2858 37.47      
5 A' 1583 1507 5.51      
6 A' 1573 1497 14.96      
7 A' 1488 1416 5.51      
8 A' 1229 1170 6.09      
9 A' 1090 1038 1.64      
10 A' 871 829 1.40      
11 A' 406 387 13.16      
12 A' 354 337 17.80      
13 A' 132 125 0.32      
14 A" 3132 2982 24.02      
15 A" 3074 2926 5.69      
16 A" 2999 2855 15.54      
17 A" 1571 1496 1.81      
18 A" 1560 1485 0.60      
19 A" 1472 1401 4.51      
20 A" 1416 1348 8.59      
21 A" 1138 1084 0.63      
22 A" 1002 954 1.16      
23 A" 990 942 0.75      
24 A" 127 121 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19814.1 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 18863.0 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 B2PLYP=FULL/3-21G
ABC
1.22585 0.27643 0.24660

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.549 0.000
C2 -0.012 -0.203 1.302
C3 -0.012 -0.203 -1.302
H4 0.258 1.598 0.000
H5 -0.765 -1.000 1.291
H6 -0.765 -1.000 -1.291
H7 0.961 -0.686 1.491
H8 -0.221 0.458 2.148
H9 0.961 -0.686 -1.491
H10 -0.221 0.458 -2.148

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50301.50301.08382.15192.15192.16632.15962.16632.1596
C21.50302.60332.23851.09682.81471.10231.09342.99633.5181
C31.50302.60332.23852.81471.09682.99633.51811.10231.0934
H41.08382.23852.23853.07603.07602.81702.47842.81702.4784
H52.15191.09682.81473.07602.58131.76581.77613.28873.7738
H62.15192.81471.09683.07602.58133.28873.77381.76581.7761
H72.16631.10232.99632.81701.76583.28871.77072.98193.9929
H82.15961.09343.51812.47841.77613.77381.77073.99294.2952
H92.16632.99631.10232.81703.28871.76582.98193.99291.7707
H102.15963.51811.09342.47843.77381.77613.99294.29521.7707

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 110.765 C1 C2 H7 111.585
C1 C2 H8 111.595 C1 C3 H6 110.765
C1 C3 H9 111.585 C1 C3 H10 111.595
C2 C1 C3 120.006 C2 C1 H4 118.964
C3 C1 H4 118.964 H5 C2 H7 106.829
H5 C2 H8 108.370 H6 C3 H9 106.829
H6 C3 H10 108.370 H7 C2 H8 107.494
H9 C3 H10 107.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability