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

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-154.997203
Energy at 298.15K 
HF Energy-154.997203
Nuclear repulsion energy107.738769
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 M06-2X/3-21G*
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' 3369 3191 1.58 81.39 0.28 0.44
2 A' 3155 2989 8.11 72.99 0.70 0.82
3 A' 3119 2955 35.93 101.37 0.14 0.25
4 A' 3069 2907 9.99 138.91 0.02 0.03
5 A' 1880 1781 8.26 37.72 0.21 0.35
6 A' 1569 1486 3.80 12.91 0.48 0.65
7 A' 1549 1467 11.13 27.22 0.72 0.84
8 A' 1464 1387 3.10 17.36 0.59 0.74
9 A' 1207 1143 5.48 3.67 0.47 0.64
10 A' 1121 1062 10.32 1.44 0.33 0.49
11 A' 1092 1034 50.08 1.06 0.28 0.44
12 A' 993 941 0.24 8.93 0.55 0.71
13 A' 956 906 12.60 10.93 0.47 0.64
14 A' 669 634 0.28 15.03 0.60 0.75
15 A' 323 306 2.26 1.26 0.72 0.84
16 A" 3195 3026 33.49 70.29 0.75 0.86
17 A" 3123 2958 5.94 75.59 0.75 0.86
18 A" 1547 1465 10.73 21.37 0.75 0.86
19 A" 1146 1086 0.01 2.76 0.75 0.86
20 A" 1094 1036 4.67 5.56 0.75 0.86
21 A" 1020 966 3.57 13.99 0.75 0.86
22 A" 814 771 40.77 1.25 0.75 0.86
23 A" 316 299 15.77 1.65 0.75 0.86
24 A" 130 123 0.42 0.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18959.5 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 17958.4 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 M06-2X/3-21G*
ABC
0.67978 0.21054 0.17144

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.181 0.000
C2 -0.058 -1.347 0.000
C3 1.155 -0.413 0.000
C4 -0.831 1.404 0.000
H5 -0.327 -1.865 0.917
H6 -0.327 -1.865 -0.917
H7 2.225 -0.362 0.000
H8 -0.209 2.303 0.000
H9 -1.479 1.419 -0.884
H10 -1.479 1.419 0.884

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.52921.29891.47852.26582.26582.28982.13152.12132.1213
C21.52921.53032.85761.08701.08702.48563.65263.23273.2327
C31.29891.53032.69192.26792.26791.07093.03893.32783.3278
C41.47852.85762.69193.43213.43213.52921.09301.09581.0958
H52.26581.08702.26793.43211.83393.10004.26863.91793.4798
H62.26581.08702.26793.43211.83393.10004.26863.47983.9179
H72.28982.48561.07093.52923.10003.10003.60834.20334.2033
H82.13153.65263.03891.09304.26864.26863.60831.78191.7819
H92.12133.23273.32781.09583.91793.47984.20331.78191.7673
H102.12133.23273.32781.09583.47983.91794.20331.78191.7673

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 50.242 H1 C2 C6 119.036
C2 C3 C6 24.746 C2 C3 C10 73.071
C2 C6 C3 36.107 C2 C6 H4 50.011
C2 C6 H5 32.480 C3 C2 C6 119.147
C3 C6 H4 51.569 C3 C6 H5 66.152
C3 C10 H7 9.459 C3 C10 H8 64.988
C3 C10 H9 74.601 H4 C6 H5 74.504
C6 C3 C10 86.706 H7 C10 H8 58.519
H7 C10 H9 77.864 H8 C10 H9 60.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.032      
2 C -0.357      
3 C -0.186      
4 C -0.683      
5 H 0.194      
6 H 0.194      
7 H 0.197      
8 H 0.220      
9 H 0.227      
10 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.173 0.832 0.000 0.850
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.437 -0.535 0.000
y -0.535 -24.786 0.000
z 0.000 0.000 -25.892
Traceless
 xyz
x 1.902 -0.535 0.000
y -0.535 -0.121 0.000
z 0.000 0.000 -1.781
Polar
3z2-r2-3.562
x2-y21.349
xy-0.535
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.980 -0.420 0.000
y -0.420 6.335 0.000
z 0.000 0.000 3.719


<r2> (average value of r2) Å2
<r2> 80.768
(<r2>)1/2 8.987