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

using model chemistry: MP4/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at MP4/cc-pVTZ
 hartrees
Energy at 0K-118.244620
Energy at 298.15K-118.250793
HF Energy-117.679523
Nuclear repulsion energy75.461516
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 MP4/cc-pVTZ
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' 3200 3101        
2 A' 3115 3019        
3 A' 3054 2960        
4 A' 2979 2887        
5 A' 1498 1452        
6 A' 1489 1443        
7 A' 1412 1369        
8 A' 1184 1148        
9 A' 1038 1006        
10 A' 893 866        
11 A' 409 397        
12 A' 347 336        
13 A' 142 138        
14 A" 3115 3019        
15 A" 3055 2961        
16 A" 2977 2885        
17 A" 1488 1442        
18 A" 1478 1432        
19 A" 1420 1376        
20 A" 1369 1327        
21 A" 1156 1120        
22 A" 944 915        
23 A" 935 906        
24 A" 106 103        

Unscaled Zero Point Vibrational Energy (zpe) 19400.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 18803.1 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 MP4/cc-pVTZ
ABC
1.23633 0.27963 0.24941

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.546 0.000
C2 -0.013 -0.201 1.293
C3 -0.013 -0.201 -1.293
H4 0.272 1.590 0.000
H5 -0.766 -0.994 1.289
H6 -0.766 -0.994 -1.289
H7 0.955 -0.691 1.478
H8 -0.211 0.455 2.142
H9 0.955 -0.691 -1.478
H10 -0.211 0.455 -2.142

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49301.49301.08232.14512.14512.15632.15312.15632.1531
C21.49302.58592.22701.09462.80421.10011.09102.97573.5026
C31.49302.58592.22702.80421.09462.97573.50261.10011.0910
H41.08232.22702.22703.06883.06882.80252.47192.80252.4719
H52.14511.09462.80423.06882.57771.75811.77083.27283.7654
H62.14512.80421.09463.06882.57773.27283.76541.75811.7708
H72.15631.10012.97572.80251.75813.27281.76442.95633.9721
H82.15311.09103.50262.47191.77083.76541.76443.97214.2839
H92.15632.97571.10012.80253.27281.75812.95633.97211.7644
H102.15313.50261.09102.47193.76541.77083.97214.28391.7644

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 111.055 C1 C2 H7 111.626
C1 C2 H8 111.929 C1 C3 H6 111.055
C1 C3 H9 111.626 C1 C3 H10 111.929
C2 C1 C3 119.994 C2 C1 H4 118.848
C3 C1 H4 118.848 H5 C2 H7 106.468
H5 C2 H8 108.236 H6 C3 H9 106.468
H6 C3 H10 108.236 H7 C2 H8 107.273
H9 C3 H10 107.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability