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All results from a given calculation for C4H6 (1-Methylcyclopropene)

using model chemistry: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-155.779388
Energy at 298.15K 
HF Energy-155.779388
Nuclear repulsion energy107.888887
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 PBEPBEultrafine/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' 3200 3164 0.33 129.59 0.30 0.46
2 A' 3045 3010 16.19 95.40 0.71 0.83
3 A' 2959 2925 40.97 340.37 0.02 0.05
4 A' 2957 2924 66.75 77.60 0.35 0.51
5 A' 1817 1796 14.58 71.63 0.16 0.27
6 A' 1477 1460 6.31 14.42 0.35 0.51
7 A' 1432 1415 11.39 16.22 0.60 0.75
8 A' 1354 1338 0.87 13.61 0.55 0.71
9 A' 1162 1149 1.70 6.79 0.43 0.60
10 A' 1047 1035 5.07 4.14 0.17 0.30
11 A' 1029 1018 37.89 0.26 0.53 0.69
12 A' 955 944 6.73 9.81 0.41 0.58
13 A' 910 899 14.71 5.10 0.56 0.72
14 A' 665 657 0.90 14.72 0.62 0.76
15 A' 315 311 2.15 1.81 0.75 0.86
16 A" 3019 2985 39.77 110.48 0.75 0.86
17 A" 3013 2978 23.87 98.07 0.75 0.86
18 A" 1426 1410 10.04 11.32 0.75 0.86
19 A" 1088 1076 0.86 0.99 0.75 0.86
20 A" 1014 1003 0.24 3.07 0.75 0.86
21 A" 956 945 2.81 6.06 0.75 0.86
22 A" 697 689 30.74 0.77 0.75 0.86
23 A" 288 285 13.71 0.50 0.75 0.86
24 A" 159 158 0.58 0.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17991.3 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 17786.2 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 PBEPBEultrafine/TZVP
ABC
0.68470 0.21136 0.17234

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.181 0.000
C2 -0.044 -1.331 0.000
C3 1.158 -0.412 0.000
C4 -0.841 1.392 0.000
H5 -0.321 -1.866 0.920
H6 -0.321 -1.866 -0.920
H7 2.241 -0.365 0.000
H8 -0.234 2.309 0.000
H9 -1.500 1.404 -0.884
H10 -1.500 1.404 0.884

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51301.30101.47392.26742.26742.30662.14022.12702.1270
C21.51301.51282.83691.09971.09972.48123.64463.22143.2214
C31.30101.51282.69252.26832.26831.08443.05643.33773.3377
C41.47392.83692.69253.42503.42503.54751.09941.10221.1022
H52.26741.09972.26833.42501.84023.10854.27583.91603.4759
H62.26741.09972.26833.42501.84023.10854.27583.47593.9160
H72.30662.48121.08443.54753.10853.10853.64354.23104.2310
H82.14023.64463.05641.09944.27584.27583.64351.78911.7891
H92.12703.22143.33771.10223.91603.47594.23101.78911.7675
H102.12703.22143.33771.10223.47593.91604.23101.78911.7675

picture of 1-Methylcyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 50.933 H1 C2 C6 119.586
C2 C3 C6 24.910 C2 C3 C10 72.412
C2 C6 C3 35.410 C2 C6 H4 49.503
C2 C6 H5 33.207 C3 C2 C6 119.681
C3 C6 H4 51.718 C3 C6 H5 66.069
C3 C10 H7 9.385 C3 C10 H8 65.254
C3 C10 H9 74.646 H4 C6 H5 74.417
C6 C3 C10 86.400 H7 C10 H8 58.869
H7 C10 H9 77.943 H8 C10 H9 60.399
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.040      
2 C -0.271      
3 C -0.158      
4 C -0.370      
5 H 0.113      
6 H 0.113      
7 H 0.121      
8 H 0.135      
9 H 0.139      
10 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.205 0.916 0.000 0.939
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.822 -0.656 0.000
y -0.656 -25.418 0.000
z 0.000 0.000 -25.855
Traceless
 xyz
x 1.815 -0.656 0.000
y -0.656 -0.580 0.000
z 0.000 0.000 -1.235
Polar
3z2-r2-2.470
x2-y21.597
xy-0.656
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.596 -0.577 0.000
y -0.577 8.064 0.000
z 0.000 0.000 5.283


<r2> (average value of r2) Å2
<r2> 80.803
(<r2>)1/2 8.989