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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: B97D3/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/cc-pVTZ
 hartrees
Energy at 0K-157.166731
Energy at 298.15K-157.175267
HF Energy-157.166731
Nuclear repulsion energy124.155607
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/cc-pVTZ
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' 3162 3118 35.79      
2 A' 3083 3040 24.09      
3 A' 3075 3032 18.20      
4 A' 3032 2989 24.56      
5 A' 2967 2925 43.48      
6 A' 1481 1460 0.78      
7 A' 1472 1451 7.49      
8 A' 1394 1375 2.92      
9 A' 1370 1350 3.38      
10 A' 1214 1197 0.00      
11 A' 1188 1172 0.00      
12 A' 1025 1010 6.32      
13 A' 985 971 8.71      
14 A' 928 915 2.86      
15 A' 787 776 4.33      
16 A' 758 748 2.06      
17 A' 364 359 0.18      
18 A" 3147 3103 0.32      
19 A" 3071 3028 34.91      
20 A" 3027 2984 36.25      
21 A" 1465 1444 1.80      
22 A" 1444 1424 1.64      
23 A" 1176 1159 0.59      
24 A" 1116 1101 0.06      
25 A" 1090 1074 3.69      
26 A" 1043 1029 1.06      
27 A" 864 852 7.17      
28 A" 807 795 4.53      
29 A" 341 336 0.60      
30 A" 219 216 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23545.5 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 23215.9 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/cc-pVTZ
ABC
0.52118 0.21127 0.18558

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.347 0.403 0.000
C2 -0.881 1.283 0.000
H3 1.291 0.943 0.000
C4 0.347 -0.900 0.755
C5 0.347 -0.900 -0.755
H6 1.253 -1.205 1.268
H7 1.253 -1.205 -1.268
H8 -0.571 -1.187 1.260
H9 -0.571 -1.187 -1.260
H10 -1.794 0.676 0.000
H11 -0.911 1.927 0.887
H12 -0.911 1.927 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.51101.08781.50561.50562.23902.23902.22642.22642.15822.16622.1662
C21.51102.19852.61592.61593.51453.51452.78992.78991.09611.09651.0965
H31.08782.19852.20432.20432.49472.49473.09703.09703.09642.56952.5695
C41.50562.61592.20431.50931.08532.23731.08622.23232.76343.09733.5029
C51.50562.61592.20431.50932.23731.08532.23231.08622.76343.50293.0973
H62.23903.51452.49471.08532.23732.53601.82423.11743.79873.82614.3744
H72.23903.51452.49472.23731.08532.53603.11741.82423.79874.37443.8261
H82.22642.78993.09701.08622.23231.82423.11742.51992.56003.15493.7976
H92.22642.78993.09702.23231.08623.11741.82422.51992.56003.79763.1549
H102.15821.09613.09642.76342.76343.79873.79872.56002.56001.76971.7697
H112.16621.09652.56953.09733.50293.82614.37443.15493.79761.76971.7733
H122.16621.09652.56953.50293.09734.37443.82613.79763.15491.76971.7733

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.728 C1 C2 H11 111.245
C1 C2 H12 111.245 C1 C4 H5 59.910
C1 C4 H6 118.676 C1 C4 H8 117.642
C1 H5 C4 59.910 C1 H5 H7 118.676
C1 H5 H9 117.642 C2 C1 C3 114.346
C2 C1 C4 120.414 C2 C1 H5 120.414
C3 C1 C4 115.505 C3 C1 H5 115.505
C4 C1 H5 60.180 C4 H5 H7 118.244
C4 H5 H9 117.868 H5 C4 H6 118.244
H5 C4 H8 117.868 H6 C4 H8 114.119
H7 H5 H9 114.119 H10 C2 H11 107.730
H10 C2 H12 107.730 H11 C2 H12 108.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.016      
2 C -0.258      
3 H 0.084      
4 C -0.189      
5 C -0.189      
6 H 0.084      
7 H 0.084      
8 H 0.079      
9 H 0.079      
10 H 0.076      
11 H 0.082      
12 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.044 0.118 0.000 0.125
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.561 0.238 0.000
y 0.238 -27.477 0.000
z 0.000 0.000 -27.203
Traceless
 xyz
x 1.779 0.238 0.000
y 0.238 -1.095 0.000
z 0.000 0.000 -0.683
Polar
3z2-r2-1.367
x2-y21.916
xy0.238
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.777 -0.551 0.000
y -0.551 7.526 0.000
z 0.000 0.000 6.922


<r2> (average value of r2) Å2
<r2> 83.731
(<r2>)1/2 9.150