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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-157.273114
Energy at 298.15K-157.281705
HF Energy-157.273114
Nuclear repulsion energy124.359934
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/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' 3208 3101 28.12      
2 A' 3131 3026 17.86      
3 A' 3124 3020 15.74      
4 A' 3075 2972 22.62      
5 A' 3016 2916 36.10      
6 A' 1514 1464 0.96      
7 A' 1502 1452 8.23      
8 A' 1426 1378 3.45      
9 A' 1399 1353 2.53      
10 A' 1234 1193 0.00      
11 A' 1211 1171 0.00      
12 A' 1053 1018 8.67      
13 A' 998 964 6.41      
14 A' 944 912 3.35      
15 A' 797 770 3.45      
16 A' 768 742 3.95      
17 A' 366 353 0.16      
18 A" 3193 3086 0.27      
19 A" 3119 3016 27.62      
20 A" 3070 2968 31.82      
21 A" 1493 1443 2.11      
22 A" 1474 1425 2.37      
23 A" 1200 1160 0.57      
24 A" 1148 1110 0.10      
25 A" 1111 1074 4.14      
26 A" 1076 1041 1.03      
27 A" 866 837 7.61      
28 A" 825 798 5.68      
29 A" 343 331 0.61      
30 A" 222 215 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23951.2 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 23153.6 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/cc-pVTZ
ABC
0.52368 0.21156 0.18576

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.345 0.401 0.000
C2 -0.878 1.285 0.000
H3 1.286 0.938 0.000
C4 0.345 -0.901 0.754
C5 0.345 -0.901 -0.754
H6 1.248 -1.204 1.265
H7 1.248 -1.204 -1.265
H8 -0.568 -1.189 1.258
H9 -0.568 -1.189 -1.258
H10 -1.791 0.687 0.000
H11 -0.904 1.928 0.882
H12 -0.904 1.928 -0.882

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.50911.08361.50391.50392.23422.23422.22322.22322.15582.16132.1613
C21.50912.19172.61552.61553.50943.50942.79262.79261.09191.09221.0922
H31.08362.19172.19862.19862.48802.48803.08923.08923.08802.56032.5603
C41.50392.61552.19861.50801.08102.23241.08192.22812.76683.09473.4984
C51.50392.61552.19861.50802.23241.08102.22811.08192.76683.49843.0947
H62.23423.50942.48801.08102.23242.53001.81593.10853.79703.81944.3650
H72.23423.50942.48802.23241.08102.53003.10851.81593.79704.36503.8194
H82.22322.79263.08921.08192.22811.81593.10852.51602.56913.15743.7960
H92.22322.79263.08922.22811.08193.10851.81592.51602.56913.79603.1574
H102.15581.09193.08802.76682.76683.79703.79702.56912.56911.76251.7625
H112.16131.09222.56033.09473.49843.81944.36503.15743.79601.76251.7649
H122.16131.09222.56033.49843.09474.36503.81943.79603.15741.76251.7649

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.940 C1 C2 H11 111.363
C1 C2 H12 111.363 C1 C4 H5 59.912
C1 C4 H6 118.690 C1 C4 H8 117.653
C1 H5 C4 59.912 C1 H5 H7 118.690
C1 H5 H9 117.653 C2 C1 C3 114.414
C2 C1 C4 120.466 C2 C1 H5 120.466
C3 C1 C4 115.397 C3 C1 H5 115.397
C4 C1 H5 60.177 C4 H5 H7 118.210
C4 H5 H9 117.766 H5 C4 H6 118.210
H5 C4 H8 117.766 H6 C4 H8 114.185
H7 H5 H9 114.185 H10 C2 H11 107.600
H10 C2 H12 107.600 H11 C2 H12 107.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.029      
2 C -0.293      
3 H 0.103      
4 C -0.227      
5 C -0.227      
6 H 0.102      
7 H 0.102      
8 H 0.096      
9 H 0.096      
10 H 0.084      
11 H 0.096      
12 H 0.096      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.040 0.124 0.000 0.131
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.697 0.235 0.000
y 0.235 -27.603 0.000
z 0.000 0.000 -27.348
Traceless
 xyz
x 1.779 0.235 0.000
y 0.235 -1.081 0.000
z 0.000 0.000 -0.698
Polar
3z2-r2-1.396
x2-y21.906
xy0.235
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.610 -0.516 0.000
y -0.516 7.354 0.000
z 0.000 0.000 6.790


<r2> (average value of r2) Å2
<r2> 83.677
(<r2>)1/2 9.148