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

using model chemistry: B97D3/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/6-31G**
 hartrees
Energy at 0K-155.848719
Energy at 298.15K 
HF Energy-155.848719
Nuclear repulsion energy107.833828
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 B97D3/6-31G**
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' 3222 3222 2.38 126.87 0.30 0.46
2 A' 3070 3070 23.68 92.16 0.72 0.84
3 A' 2978 2978 26.84 233.25 0.01 0.02
4 A' 2968 2968 104.48 104.24 0.24 0.38
5 A' 1841 1841 11.22 53.94 0.21 0.34
6 A' 1516 1516 11.40 18.78 0.38 0.55
7 A' 1466 1466 7.96 24.66 0.69 0.82
8 A' 1384 1384 0.70 22.58 0.56 0.72
9 A' 1185 1185 0.51 4.39 0.41 0.58
10 A' 1074 1074 15.94 1.44 0.31 0.48
11 A' 1051 1051 23.37 0.15 0.70 0.82
12 A' 969 969 3.67 10.16 0.54 0.70
13 A' 928 928 11.92 9.57 0.63 0.77
14 A' 681 681 0.31 16.69 0.58 0.73
15 A' 312 312 1.67 1.58 0.74 0.85
16 A" 3037 3037 13.93 95.69 0.75 0.86
17 A" 3024 3024 83.75 104.48 0.75 0.86
18 A" 1461 1461 6.28 18.40 0.75 0.86
19 A" 1111 1111 0.76 2.95 0.75 0.86
20 A" 1030 1030 0.71 5.07 0.75 0.86
21 A" 974 974 2.90 11.93 0.75 0.86
22 A" 696 696 24.41 1.17 0.75 0.86
23 A" 284 284 9.39 1.13 0.75 0.86
24 A" 160 160 0.50 0.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18210.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18210.7 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 B97D3/6-31G**
ABC
0.68696 0.21051 0.17186

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.181 0.000
C2 -0.032 -1.329 0.000
C3 1.163 -0.409 0.000
C4 -0.855 1.389 0.000
H5 -0.311 -1.870 0.916
H6 -0.311 -1.870 -0.916
H7 2.245 -0.354 0.000
H8 -0.257 2.310 0.000
H9 -1.512 1.396 -0.883
H10 -1.512 1.396 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51031.30431.47932.26782.26782.30782.14412.13092.1309
C21.51031.50742.83921.10031.10032.47623.64553.22383.2238
C31.30431.50742.70242.26842.26841.08333.06783.34563.3456
C41.47932.83922.70243.42813.42813.55591.09791.10081.1008
H52.26781.10032.26843.42811.83273.10954.27923.91693.4793
H62.26781.10032.26843.42811.83273.10954.27923.47933.9169
H72.30782.47621.08333.55593.10953.10953.65504.23754.2375
H82.14413.64553.06781.09794.27924.27923.65501.78601.7860
H92.13093.22383.34561.10083.91693.47934.23751.78601.7656
H102.13093.22383.34561.10083.47933.91694.23751.78601.7656

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 51.216 H1 C2 C6 119.800
C2 C3 C6 24.817 C2 C3 C10 72.265
C2 C6 C3 35.102 C2 C6 H4 49.477
C2 C6 H5 33.607 C3 C2 C6 120.081
C3 C6 H4 51.910 C3 C6 H5 66.173
C3 C10 H7 9.367 C3 C10 H8 65.417
C3 C10 H9 74.700 H4 C6 H5 74.496
C6 C3 C10 86.235 H7 C10 H8 59.038
H7 C10 H9 77.975 H8 C10 H9 60.376
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.128      
2 C -0.255      
3 C -0.139      
4 C -0.414      
5 H 0.090      
6 H 0.090      
7 H 0.097      
8 H 0.131      
9 H 0.135      
10 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.176 0.910 0.000 0.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.126 -0.611 0.000
y -0.611 -24.772 0.000
z 0.000 0.000 -25.136
Traceless
 xyz
x 1.828 -0.611 0.000
y -0.611 -0.641 0.000
z 0.000 0.000 -1.186
Polar
3z2-r2-2.373
x2-y21.646
xy-0.611
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.727 -0.568 0.000
y -0.568 7.083 0.000
z 0.000 0.000 4.326


<r2> (average value of r2) Å2
<r2> 80.531
(<r2>)1/2 8.974