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

using model chemistry: B3LYP/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 B3LYP/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 B3LYP/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 3160 0.38 117.23 0.30 0.47
2 A' 3100 2993 19.13 92.00 0.71 0.83
3 A' 3025 2920 71.88 220.21 0.09 0.16
4 A' 3022 2917 37.10 165.96 0.05 0.09
5 A' 1864 1799 15.48 67.46 0.15 0.27
6 A' 1528 1475 6.11 13.14 0.34 0.51
7 A' 1485 1434 10.25 14.84 0.61 0.76
8 A' 1411 1362 0.31 9.63 0.57 0.73
9 A' 1186 1145 2.90 6.49 0.42 0.59
10 A' 1084 1047 1.51 3.46 0.16 0.28
11 A' 1064 1027 43.91 0.92 0.24 0.38
12 A' 975 941 3.83 10.32 0.37 0.54
13 A' 942 910 15.26 6.13 0.46 0.63
14 A' 672 649 0.74 14.61 0.61 0.76
15 A' 324 313 1.90 1.70 0.75 0.85
16 A" 3084 2977 48.50 107.87 0.75 0.86
17 A" 3070 2964 19.89 90.17 0.75 0.86
18 A" 1481 1429 9.46 10.84 0.75 0.86
19 A" 1125 1086 1.31 0.92 0.75 0.86
20 A" 1054 1018 0.39 2.59 0.75 0.86
21 A" 988 954 2.17 6.38 0.75 0.86
22 A" 735 710 34.66 0.84 0.75 0.86
23 A" 298 288 13.86 0.68 0.75 0.86
24 A" 160 155 0.48 0.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18474.4 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 17835.1 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 B3LYP/TZVP
ABC
0.69148 0.21278 0.17354

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/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 B3LYP/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