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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: B3LYPultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/TZVP
 hartrees
Energy at 0K-157.268841
Energy at 298.15K-157.277431
HF Energy-157.268841
Nuclear repulsion energy124.243416
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' 3210 3093 27.59      
2 A' 3132 3018 19.14      
3 A' 3125 3011 14.36      
4 A' 3080 2967 22.11      
5 A' 3019 2909 36.35      
6 A' 1515 1460 1.13      
7 A' 1504 1449 9.32      
8 A' 1427 1375 3.83      
9 A' 1400 1348 2.00      
10 A' 1234 1189 0.00      
11 A' 1211 1167 0.01      
12 A' 1051 1013 10.75      
13 A' 997 960 6.96      
14 A' 945 910 3.90      
15 A' 799 770 3.34      
16 A' 768 740 5.28      
17 A' 368 355 0.20      
18 A" 3195 3078 0.29      
19 A" 3121 3007 27.32      
20 A" 3076 2963 32.41      
21 A" 1495 1440 2.31      
22 A" 1475 1421 3.12      
23 A" 1201 1157 0.77      
24 A" 1147 1105 0.10      
25 A" 1111 1070 4.40      
26 A" 1075 1035 1.64      
27 A" 864 832 8.27      
28 A" 827 797 6.38      
29 A" 344 331 0.73      
30 A" 222 214 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23968.3 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 23091.1 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 B3LYPultrafine/TZVP
ABC
0.52258 0.21123 0.18548

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 0.346 0.401 0.000
C2 -0.878 1.286 0.000
H3 1.288 0.939 0.000
C4 0.346 -0.901 0.755
C5 0.346 -0.901 -0.755
H6 1.250 -1.205 1.267
H7 1.250 -1.205 -1.267
H8 -0.569 -1.190 1.259
H9 -0.569 -1.190 -1.259
H10 -1.793 0.688 0.000
H11 -0.904 1.929 0.884
H12 -0.904 1.929 -0.884

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.51021.08531.50521.50522.23642.23642.22572.22572.15802.16262.1626
C21.51022.19412.61742.61743.51253.51252.79502.79501.09311.09351.0935
H31.08532.19412.20112.20112.49062.49063.09313.09313.09172.56242.5624
C41.50522.61742.20111.50921.08262.23501.08352.23032.76933.09663.5009
C51.50522.61742.20111.50922.23501.08262.23031.08352.76933.50093.0966
H62.23643.51252.49061.08262.23502.53321.81853.11223.80093.82204.3687
H72.23643.51252.49062.23501.08262.53323.11221.81853.80094.36873.8220
H82.22572.79503.09311.08352.23031.81853.11222.51822.57133.15983.7994
H92.22572.79503.09312.23031.08353.11221.81852.51822.57133.79943.1598
H102.15801.09313.09172.76932.76933.80093.80092.57132.57131.76461.7646
H112.16261.09352.56243.09663.50093.82204.36873.15983.79941.76461.7676
H122.16261.09352.56243.50093.09664.36873.82203.79943.15981.76461.7676

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.963 C1 C2 H11 111.314
C1 C2 H12 111.314 C1 C4 H5 59.911
C1 C4 H6 118.680 C1 C4 H8 117.662
C1 H5 C4 59.911 C1 H5 H7 118.680
C1 H5 H9 117.662 C2 C1 C3 114.423
C2 C1 C4 120.456 C2 C1 H5 120.456
C3 C1 C4 115.398 C3 C1 H5 115.398
C4 C1 H5 60.178 C4 H5 H7 118.224
C4 H5 H9 117.750 H5 C4 H6 118.224
H5 C4 H8 117.750 H6 C4 H8 114.187
H7 H5 H9 114.187 H10 C2 H11 107.612
H10 C2 H12 107.612 H11 C2 H12 107.849
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 -0.077      
2 C -0.343      
3 H 0.147      
4 C -0.300      
5 C -0.300      
6 H 0.138      
7 H 0.138      
8 H 0.131      
9 H 0.131      
10 H 0.100      
11 H 0.117      
12 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.033 0.142 0.000 0.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.688 0.218 0.000
y 0.218 -27.675 0.000
z 0.000 0.000 -27.436
Traceless
 xyz
x 1.867 0.218 0.000
y 0.218 -1.113 0.000
z 0.000 0.000 -0.755
Polar
3z2-r2-1.510
x2-y21.987
xy0.218
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.608 -0.477 0.000
y -0.477 7.383 0.000
z 0.000 0.000 6.864


<r2> (average value of r2) Å2
<r2> 83.823
(<r2>)1/2 9.155