return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CHCHCH2 (methylallyl radical)

using model chemistry: CCSD=FULL/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-156.228354
Energy at 298.15K-156.234509
HF Energy-155.558489
Nuclear repulsion energy109.209860
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/TZVP
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' 3284 3112 12.47      
2 A' 3186 3018 24.61      
3 A' 3183 3016 16.20      
4 A' 3170 3004 5.59      
5 A' 3136 2971 17.34      
6 A' 3044 2884 31.85      
7 A' 1543 1462 6.63      
8 A' 1539 1459 0.38      
9 A' 1504 1425 10.86      
10 A' 1449 1373 1.24      
11 A' 1366 1295 0.62      
12 A' 1305 1237 1.59      
13 A' 1193 1130 0.27      
14 A' 1156 1095 0.36      
15 A' 1011 958 2.32      
16 A' 894 847 3.48      
17 A' 512 485 0.46      
18 A' 291 275 0.18      
19 A" 3096 2934 23.34      
20 A" 1490 1412 5.67      
21 A" 1041 986 0.03      
22 A" 950 900 40.24      
23 A" 686 650 6.06      
24 A" 622 590 40.81      
25 A" 507 480 4.70      
26 A" 203 193 1.48      
27 A" 127 120 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 20742.4 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 19653.4 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/TZVP
ABC
1.26712 0.13380 0.12379

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.366 -1.406 0.000
C2 0.148 -0.746 0.000
C3 0.000 0.631 0.000
C4 -1.322 1.333 0.000
H5 2.298 -0.857 0.000
H6 1.420 -2.485 0.000
H7 -0.756 -1.349 0.000
H8 0.894 1.248 0.000
H9 -2.147 0.618 0.000
H10 -1.430 1.975 0.879
H11 -1.430 1.975 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
C11.38502.45293.83731.08231.08022.12222.69624.05394.47444.4744
C21.38501.38512.54582.15252.15471.08682.12882.66963.26583.2658
C32.45291.38511.49642.73763.42472.11961.08592.14662.15002.1500
C43.83732.54581.49644.23044.70042.74072.21711.09101.09401.0940
H51.08232.15252.73764.23041.85023.09322.53044.68284.76314.7631
H61.08022.15473.42474.70041.85022.45463.77044.72775.36535.3653
H72.12221.08682.11962.74073.09322.45463.07672.40923.50343.5034
H82.69622.12881.08592.21712.53043.77043.07673.10472.58842.5884
H94.05392.66962.14661.09104.68284.72772.40923.10471.76801.7680
H104.47443.26582.15001.09404.76315.36533.50342.58841.76801.7582
H114.47443.26582.15001.09404.76315.36533.50342.58841.76801.7582

picture of methylallyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.628 C1 C2 H7 117.808
C2 C1 H5 120.994 C2 C1 H6 121.366
C2 C3 C4 124.091 C2 C3 H8 118.478
C3 C2 H7 117.563 C3 C4 H9 111.152
C3 C4 H10 111.249 C3 C4 H11 111.249
C4 C3 H8 117.431 H5 C1 H6 117.640
H9 C4 H10 108.034 H9 C4 H11 108.034
H10 C4 H11 106.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability