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 C4H6 (1-Methylcyclopropene)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/TZVP
 hartrees
Energy at 0K-156.000117
Energy at 298.15K 
HF Energy-156.000117
Nuclear repulsion energy108.383239
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 B3LYPultrafine/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' 3273 3153 0.38 117.23 0.30 0.47
2 A' 3100 2987 19.13 92.00 0.71 0.83
3 A' 3025 2914 71.88 220.21 0.09 0.16
4 A' 3022 2911 37.10 165.96 0.05 0.09
5 A' 1864 1795 15.48 67.46 0.15 0.27
6 A' 1528 1472 6.11 13.14 0.34 0.51
7 A' 1485 1431 10.25 14.84 0.61 0.76
8 A' 1411 1359 0.31 9.63 0.57 0.73
9 A' 1186 1143 2.90 6.49 0.42 0.59
10 A' 1084 1045 1.51 3.46 0.16 0.28
11 A' 1064 1025 43.91 0.92 0.24 0.38
12 A' 975 939 3.83 10.32 0.37 0.54
13 A' 942 908 15.26 6.13 0.46 0.63
14 A' 672 647 0.74 14.61 0.61 0.76
15 A' 324 312 1.90 1.70 0.75 0.85
16 A" 3084 2971 48.50 107.87 0.75 0.86
17 A" 3070 2958 19.89 90.17 0.75 0.86
18 A" 1481 1426 9.46 10.84 0.75 0.86
19 A" 1125 1084 1.31 0.92 0.75 0.86
20 A" 1054 1016 0.39 2.59 0.75 0.86
21 A" 988 952 2.17 6.38 0.75 0.86
22 A" 735 708 34.66 0.84 0.75 0.86
23 A" 298 287 13.86 0.68 0.75 0.86
24 A" 160 154 0.48 0.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18474.4 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 17798.2 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 B3LYPultrafine/TZVP
ABC
0.69148 0.21278 0.17354

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.178 0.000
C2 -0.029 -1.330 0.000
C3 1.155 -0.395 0.000
C4 -0.854 1.380 0.000
H5 -0.296 -1.865 0.912
H6 -0.296 -1.865 -0.912
H7 2.229 -0.332 0.000
H8 -0.259 2.295 0.000
H9 -1.506 1.386 -0.878
H10 -1.506 1.386 0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.50811.28921.47432.25692.25692.28632.13272.12092.1209
C21.50811.50842.83251.09091.09092.46843.63203.21383.2138
C31.28921.50842.68052.25772.25771.07573.03873.32003.3200
C41.47432.83252.68053.41663.41663.52581.09141.09391.0939
H52.25691.09092.25773.41661.82493.09124.25883.90393.4690
H62.25691.09092.25773.41661.82493.09124.25883.46903.9039
H72.28632.46841.07573.52583.09123.09123.61764.20344.2034
H82.13273.63203.03871.09144.25884.25883.61761.77551.7755
H92.12093.21383.32001.09393.90393.46904.20341.77551.7568
H102.12093.21383.32001.09393.46903.90394.20341.77551.7568

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 50.604 H1 C2 C6 119.677
C2 C3 C6 24.809 C2 C3 C10 72.755
C2 C6 C3 35.464 C2 C6 H4 49.512
C2 C6 H5 33.234 C3 C2 C6 119.727
C3 C6 H4 51.588 C3 C6 H5 66.162
C3 C10 H7 9.426 C3 C10 H8 65.223
C3 C10 H9 74.658 H4 C6 H5 74.510
C6 C3 C10 86.637 H7 C10 H8 58.792
H7 C10 H9 77.937 H8 C10 H9 60.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.036      
2 C -0.257      
3 C -0.151      
4 C -0.369      
5 H 0.106      
6 H 0.106      
7 H 0.130      
8 H 0.129      
9 H 0.134      
10 H 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.186 0.891 0.000 0.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.878 -0.586 0.000
y -0.586 -25.514 0.000
z 0.000 0.000 -25.893
Traceless
 xyz
x 1.826 -0.586 0.000
y -0.586 -0.628 0.000
z 0.000 0.000 -1.197
Polar
3z2-r2-2.395
x2-y21.636
xy-0.586
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.386 -0.514 0.000
y -0.514 7.771 0.000
z 0.000 0.000 5.163


<r2> (average value of r2) Å2
<r2> 80.343
(<r2>)1/2 8.963