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

using model chemistry: HSEh1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-153.882671
Energy at 298.15K 
HF Energy-153.882671
Nuclear repulsion energy107.341037
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 HSEh1PBE/STO-3G
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' 3575 3157 36.53 49.45 0.32 0.49
2 A' 3523 3111 0.36 37.19 0.75 0.86
3 A' 3366 2972 3.93 43.43 0.14 0.25
4 A' 3343 2953 0.12 66.65 0.01 0.03
5 A' 2050 1810 1.50 23.05 0.18 0.30
6 A' 1693 1495 5.91 14.87 0.63 0.77
7 A' 1672 1477 6.48 21.51 0.71 0.83
8 A' 1563 1380 0.49 15.86 0.59 0.74
9 A' 1384 1222 0.50 4.26 0.44 0.61
10 A' 1264 1116 32.23 1.86 0.25 0.40
11 A' 1197 1057 13.29 0.10 0.32 0.48
12 A' 1084 957 1.72 6.41 0.60 0.75
13 A' 1042 920 9.49 11.43 0.65 0.78
14 A' 771 681 0.48 11.48 0.56 0.72
15 A' 347 306 0.81 0.80 0.72 0.84
16 A" 3500 3091 9.44 36.18 0.75 0.86
17 A" 3499 3090 0.03 41.24 0.75 0.86
18 A" 1666 1471 6.10 16.77 0.75 0.86
19 A" 1207 1066 1.21 1.34 0.75 0.86
20 A" 1151 1016 4.90 4.47 0.75 0.86
21 A" 1093 965 4.28 7.32 0.75 0.86
22 A" 817 722 17.13 0.71 0.75 0.86
23 A" 328 289 6.26 1.07 0.75 0.86
24 A" 116 103 0.20 0.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20624.1 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 18213.2 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 HSEh1PBE/STO-3G
ABC
0.68673 0.20705 0.16960

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.174 0.000
C2 -0.084 -1.339 0.000
C3 1.143 -0.460 0.000
C4 -0.799 1.441 0.000
H5 -0.379 -1.872 0.916
H6 -0.379 -1.872 -0.916
H7 2.231 -0.438 0.000
H8 -0.139 2.319 0.000
H9 -1.448 1.486 -0.889
H10 -1.448 1.486 0.889

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51521.30701.49852.27332.27332.31372.15032.14652.1465
C21.51521.50952.87111.10021.10022.48403.65923.26063.2606
C31.30701.50952.71802.26962.26961.08823.06093.35973.3597
C41.49852.87112.71803.46323.46323.56621.09891.10111.1011
H52.27331.10022.26963.46321.83213.11594.29733.95923.5239
H62.27331.10022.26963.46321.83213.11594.29733.52393.9592
H72.31372.48401.08823.56623.11593.11593.63654.24574.2457
H82.15033.65923.06091.09894.29734.29733.63651.78821.7882
H92.14653.26063.35971.10113.95923.52394.24571.78821.7780
H102.14653.26063.35971.10113.52393.95924.24571.78821.7780

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 51.203 H1 C2 C6 119.895
C2 C3 C6 24.813 C2 C3 C10 73.181
C2 C6 C3 35.155 C2 C6 H4 49.383
C2 C6 H5 33.629 C3 C2 C6 120.032
C3 C6 H4 51.635 C3 C6 H5 66.196
C3 C10 H7 9.597 C3 C10 H8 64.797
C3 C10 H9 74.657 H4 C6 H5 74.662
C6 C3 C10 87.129 H7 C10 H8 58.208
H7 C10 H9 77.914 H8 C10 H9 60.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 C -0.156      
3 C -0.115      
4 C -0.241      
5 H 0.064      
6 H 0.064      
7 H 0.100      
8 H 0.097      
9 H 0.099      
10 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.102 0.796 0.000 0.802
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.035 -0.578 0.000
y -0.578 -23.208 0.000
z 0.000 0.000 -23.492
Traceless
 xyz
x 1.316 -0.578 0.000
y -0.578 -0.445 0.000
z 0.000 0.000 -0.871
Polar
3z2-r2-1.741
x2-y21.174
xy-0.578
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.567 -0.450 0.000
y -0.450 3.679 0.000
z 0.000 0.000 1.937


<r2> (average value of r2) Å2
<r2> 80.434
(<r2>)1/2 8.968