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

using model chemistry: B2PLYP=FULLultrafine/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B2PLYP=FULLultrafine/STO-3G
 hartrees
Energy at 0K-153.764552
Energy at 298.15K 
HF Energy-153.682789
Nuclear repulsion energy106.758046
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 B2PLYP=FULLultrafine/STO-3G
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' 3565 3565 27.04 52.53 0.32 0.48
2 A' 3519 3519 0.06 36.27 0.75 0.86
3 A' 3363 3363 4.26 42.84 0.14 0.24
4 A' 3341 3341 0.68 59.37 0.01 0.01
5 A' 1993 1993 2.79 14.35 0.17 0.29
6 A' 1698 1698 7.33 13.93 0.64 0.78
7 A' 1690 1690 3.65 22.29 0.71 0.83
8 A' 1578 1578 2.36 12.73 0.63 0.77
9 A' 1366 1366 1.13 3.39 0.39 0.56
10 A' 1254 1254 26.15 1.70 0.16 0.28
11 A' 1196 1196 11.34 0.09 0.46 0.63
12 A' 1078 1078 1.01 6.95 0.59 0.74
13 A' 1043 1043 7.44 12.17 0.59 0.75
14 A' 756 756 0.81 12.19 0.55 0.71
15 A' 345 345 0.52 0.87 0.70 0.83
16 A" 3500 3500 0.05 38.68 0.75 0.86
17 A" 3499 3499 10.89 36.77 0.75 0.86
18 A" 1685 1685 4.24 17.23 0.75 0.86
19 A" 1206 1206 1.81 1.15 0.75 0.86
20 A" 1151 1151 4.70 3.33 0.75 0.86
21 A" 1099 1099 2.85 8.99 0.75 0.86
22 A" 802 802 15.21 0.72 0.75 0.86
23 A" 319 319 5.14 1.09 0.75 0.86
24 A" 111 111 0.14 0.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20578.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20578.9 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 B2PLYP=FULLultrafine/STO-3G
ABC
0.68074 0.20425 0.16741

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.172 0.000
C2 -0.094 -1.349 0.000
C3 1.146 -0.472 0.000
C4 -0.794 1.459 0.000
H5 -0.392 -1.880 0.918
H6 -0.392 -1.880 -0.918
H7 2.236 -0.456 0.000
H8 -0.121 2.330 0.000
H9 -1.441 1.511 -0.891
H10 -1.441 1.511 0.891

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.52411.31461.51142.28192.28192.32232.16132.15922.1592
C21.52411.51882.89331.10171.10172.49493.67923.28433.2843
C31.31461.51882.73652.27832.27831.08973.07523.37893.3789
C41.51142.89332.73653.48533.48533.58361.10101.10261.1026
H52.28191.10172.27833.48531.83653.12644.31723.98363.5491
H62.28191.10172.27833.48531.83653.12644.31723.54913.9836
H72.32232.49491.08973.58363.12643.12643.64924.26374.2637
H82.16133.67923.07521.10104.31724.31723.64921.79081.7908
H92.15923.28433.37891.10263.98363.54914.26371.79081.7824
H102.15923.28433.37891.10263.54913.98364.26371.79081.7824

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 51.193 H1 C2 C6 119.833
C2 C3 C6 24.773 C2 C3 C10 73.372
C2 C6 C3 35.289 C2 C6 H4 49.475
C2 C6 H5 33.539 C3 C2 C6 119.939
C3 C6 H4 51.670 C3 C6 H5 66.232
C3 C10 H7 9.614 C3 C10 H8 64.725
C3 C10 H9 74.707 H4 C6 H5 74.724
C6 C3 C10 87.252 H7 C10 H8 58.103
H7 C10 H9 77.935 H8 C10 H9 60.154
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.011      
2 C -0.132      
3 C -0.103      
4 C -0.206      
5 H 0.053      
6 H 0.053      
7 H 0.090      
8 H 0.085      
9 H 0.086      
10 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.058 0.756 0.000 0.758
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.309 -0.541 0.007
y -0.541 -23.458 0.002
z 0.007 0.002 -23.640
Traceless
 xyz
x 1.240 -0.541 0.007
y -0.541 -0.484 0.002
z 0.007 0.002 -0.756
Polar
3z2-r2-1.512
x2-y21.149
xy-0.541
xz0.007
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.540 -0.399 -0.000
y -0.399 3.688 -0.000
z -0.000 -0.000 1.950


<r2> (average value of r2) Å2
<r2> 81.373
(<r2>)1/2 9.021