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

using model chemistry: PBE1PBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-155.804477
Energy at 298.15K 
HF Energy-155.804477
Nuclear repulsion energy108.721451
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 PBE1PBE/aug-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' 3284 3158 0.60 118.33 0.29 0.44
2 A' 3128 3007 14.00 82.75 0.70 0.83
3 A' 3039 2922 35.78 375.18 0.01 0.03
4 A' 3038 2921 68.92 57.13 0.47 0.64
5 A' 1882 1810 15.38 79.54 0.12 0.21
6 A' 1520 1461 4.52 9.92 0.31 0.48
7 A' 1472 1415 11.21 10.70 0.49 0.66
8 A' 1395 1341 0.52 7.56 0.49 0.66
9 A' 1209 1163 2.34 8.52 0.43 0.60
10 A' 1095 1053 10.19 6.90 0.15 0.26
11 A' 1075 1033 26.04 1.04 0.58 0.73
12 A' 990 952 8.91 6.88 0.18 0.31
13 A' 947 910 14.50 3.72 0.50 0.67
14 A' 697 670 1.06 14.10 0.55 0.71
15 A' 326 313 1.93 1.77 0.75 0.86
16 A" 3099 2980 18.67 101.02 0.75 0.86
17 A" 3096 2977 39.55 103.01 0.75 0.86
18 A" 1468 1411 9.28 5.32 0.75 0.86
19 A" 1121 1078 1.19 0.57 0.75 0.86
20 A" 1052 1011 0.27 2.17 0.75 0.86
21 A" 987 949 2.69 0.67 0.75 0.86
22 A" 741 712 33.99 1.40 0.75 0.86
23 A" 304 292 13.29 0.24 0.75 0.86
24 A" 163 157 0.44 0.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18563.1 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 17848.4 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 PBE1PBE/aug-cc-pVTZ
ABC
0.69602 0.21437 0.17488

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.178 0.000
C2 -0.033 -1.321 0.000
C3 1.151 -0.401 0.000
C4 -0.846 1.377 0.000
H5 -0.305 -1.854 0.912
H6 -0.305 -1.854 -0.912
H7 2.226 -0.345 0.000
H8 -0.250 2.290 0.000
H9 -1.499 1.382 -0.878
H10 -1.499 1.382 0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.49951.28891.46712.24882.24882.28672.12692.11312.1131
C21.49951.49972.81741.09131.09132.46083.61773.19753.1975
C31.28891.49972.67412.25062.25061.07613.03463.31253.3125
C41.46712.81742.67413.40073.40073.52191.09071.09351.0935
H52.24881.09132.25063.40071.82483.08484.24423.88633.4497
H62.24881.09132.25063.40071.82483.08484.24423.44973.8863
H72.28672.46081.07613.52193.08483.08483.61654.19844.1984
H82.12693.61773.03461.09074.24424.24423.61651.77561.7756
H92.11313.19753.31251.09353.88633.44974.19841.77561.7552
H102.11313.19753.31251.09353.44973.88634.19841.77561.7552

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 50.904 H1 C2 C6 119.617
C2 C3 C6 24.890 C2 C3 C10 72.441
C2 C6 C3 35.336 C2 C6 H4 49.528
C2 C6 H5 33.274 C3 C2 C6 119.774
C3 C6 H4 51.738 C3 C6 H5 66.084
C3 C10 H7 9.394 C3 C10 H8 65.296
C3 C10 H9 74.637 H4 C6 H5 74.437
C6 C3 C10 86.407 H7 C10 H8 58.905
H7 C10 H9 77.934 H8 C10 H9 60.379
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.710      
2 C -0.685      
3 C -1.036      
4 C -0.548      
5 H 0.249      
6 H 0.249      
7 H 0.317      
8 H 0.262      
9 H 0.241      
10 H 0.241      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.184 0.914 0.000 0.933
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.551 -0.686 0.000
y -0.686 -25.263 0.000
z 0.000 0.000 -25.693
Traceless
 xyz
x 1.927 -0.686 0.000
y -0.686 -0.641 0.000
z 0.000 0.000 -1.286
Polar
3z2-r2-2.573
x2-y21.712
xy-0.686
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.695 -0.608 0.000
y -0.608 8.076 0.000
z 0.000 0.000 5.648


<r2> (average value of r2) Å2
<r2> 79.727
(<r2>)1/2 8.929