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

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-155.928065
Energy at 298.15K 
HF Energy-155.928065
Nuclear repulsion energy108.382892
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 wB97X-D/6-311G**
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' 3295 3152 0.45 105.94 0.31 0.48
2 A' 3133 2997 17.94 88.34 0.73 0.84
3 A' 3043 2910 53.56 252.78 0.05 0.10
4 A' 3041 2909 50.90 89.09 0.12 0.21
5 A' 1890 1808 14.26 56.62 0.21 0.34
6 A' 1526 1459 4.94 12.45 0.37 0.54
7 A' 1487 1422 10.60 15.61 0.65 0.79
8 A' 1409 1348 0.45 7.84 0.68 0.81
9 A' 1202 1149 3.84 6.31 0.50 0.67
10 A' 1091 1044 7.18 3.81 0.19 0.32
11 A' 1074 1027 36.27 0.40 0.32 0.48
12 A' 987 944 7.53 8.62 0.40 0.57
13 A' 944 903 15.70 6.44 0.50 0.67
14 A' 689 660 1.00 15.05 0.61 0.75
15 A' 323 309 1.96 1.43 0.74 0.85
16 A" 3110 2975 32.10 96.64 0.75 0.86
17 A" 3107 2972 41.14 96.31 0.75 0.86
18 A" 1483 1418 10.16 11.28 0.75 0.86
19 A" 1124 1075 1.04 1.71 0.75 0.86
20 A" 1058 1012 0.97 3.92 0.75 0.86
21 A" 991 948 2.75 6.02 0.75 0.86
22 A" 753 720 34.28 1.01 0.75 0.86
23 A" 299 286 13.94 1.05 0.75 0.86
24 A" 155 149 0.48 0.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18606.4 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 17797.0 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 wB97X-D/6-311G**
ABC
0.69034 0.21297 0.17365

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.178 0.000
C2 -0.028 -1.330 0.000
C3 1.156 -0.392 0.000
C4 -0.856 1.378 0.000
H5 -0.293 -1.864 0.915
H6 -0.293 -1.864 -0.915
H7 2.229 -0.327 0.000
H8 -0.261 2.293 0.000
H9 -1.506 1.379 -0.880
H10 -1.506 1.379 0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.50821.28861.47442.25672.25672.28592.13142.11782.1178
C21.50821.50962.83211.09191.09192.46983.63083.20913.2091
C31.28861.50962.68002.25862.25861.07593.03643.31613.3161
C41.47442.83212.68003.41563.41563.52561.09171.09401.0940
H52.25671.09192.25863.41561.82913.09234.25703.89993.4627
H62.25671.09192.25863.41561.82913.09234.25703.46273.8999
H72.28592.46981.07593.52563.09233.09233.61514.19994.1999
H82.13143.63083.03641.09174.25704.25703.61511.77791.7779
H92.11783.20913.31611.09403.89993.46274.19991.77791.7600
H102.11783.20913.31611.09403.46273.89994.19991.77791.7600

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 50.556 H1 C2 C6 119.577
C2 C3 C6 24.849 C2 C3 C10 72.702
C2 C6 C3 35.519 C2 C6 H4 49.566
C2 C6 H5 33.115 C3 C2 C6 119.632
C3 C6 H4 51.593 C3 C6 H5 66.114
C3 C10 H7 9.429 C3 C10 H8 65.244
C3 C10 H9 74.611 H4 C6 H5 74.469
C6 C3 C10 86.600 H7 C10 H8 58.822
H7 C10 H9 77.905 H8 C10 H9 60.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.036      
2 C -0.214      
3 C -0.172      
4 C -0.307      
5 H 0.111      
6 H 0.111      
7 H 0.103      
8 H 0.132      
9 H 0.136      
10 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.168 0.902 0.000 0.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.329 -0.604 0.000
y -0.604 -25.052 0.000
z 0.000 0.000 -25.570
Traceless
 xyz
x 1.982 -0.604 0.000
y -0.604 -0.602 0.000
z 0.000 0.000 -1.380
Polar
3z2-r2-2.760
x2-y21.722
xy-0.604
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.939 -0.517 0.000
y -0.517 7.282 0.000
z 0.000 0.000 4.642


<r2> (average value of r2) Å2
<r2> 80.024
(<r2>)1/2 8.946