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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-194.081512
Energy at 298.15K-194.086673
Nuclear repulsion energy147.275584
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 B3LYP/6-311G*
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 3468 3351 60.34      
2 A 3227 3118 20.94      
3 A 3140 3034 9.90      
4 A 3133 3028 9.51      
5 A 2218 2144 18.33      
6 A 1515 1464 0.98      
7 A 1392 1345 3.38      
8 A 1219 1178 0.86      
9 A 1145 1107 0.48      
10 A 1058 1022 6.86      
11 A 966 933 22.50      
12 A 817 790 1.23      
13 A 759 733 3.59      
14 A 647 625 47.82      
15 A 504 487 7.08      
16 A 201 194 1.15      
17 A 3212 3104 0.04      
18 A 3130 3024 24.06      
19 A 1480 1430 3.53      
20 A 1210 1169 0.74      
21 A 1117 1080 1.48      
22 A 1076 1040 6.83      
23 A 897 866 1.34      
24 A 823 796 10.58      
25 A 579 560 55.34      
26 A 514 497 0.03      
27 A 207 200 1.22      

Unscaled Zero Point Vibrational Energy (zpe) 19827.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 19159.3 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 B3LYP/6-311G*
ABC
0.53093 0.11120 0.10552

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.631 0.000
C2 -1.087 -0.307 0.000
H3 -0.301 1.675 0.000
C4 1.286 0.312 0.750
C5 1.286 0.312 -0.750
C6 -2.000 -1.092 0.000
H7 -2.806 -1.786 0.000
H8 1.769 1.131 1.270
H9 1.332 -0.641 1.262
H10 1.769 1.131 -1.270
H11 1.332 -0.641 -1.262

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.43631.08621.52191.52192.63973.70332.23462.23272.23462.2327
C21.43632.13242.56452.56451.20342.26693.44122.74913.44122.7491
H31.08622.13242.22152.22153.24684.27202.48883.10172.48883.1017
C41.52192.56452.22151.49923.65054.65871.08411.08312.23262.2266
C51.52192.56452.22151.49923.65054.65872.23262.22661.08411.0831
C62.63971.20343.24683.65053.65051.06364.55623.59114.55623.5911
H73.70332.26694.27204.65874.65871.06365.57244.47515.57244.4751
H82.23463.44122.48881.08412.23264.55625.57241.82482.54083.1216
H92.23272.74913.10171.08312.22663.59114.47511.82483.12162.5245
H102.23463.44122.48882.23261.08414.55625.57242.54083.12161.8248
H112.23272.74913.10172.22661.08313.59114.47513.12162.52451.8248

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.926 C1 C4 C5 60.492
C1 C4 H8 117.077 C1 C4 H9 116.976
C1 C5 C4 60.492 C1 C5 H10 117.077
C1 C5 H11 116.976 C2 C1 H3 114.709
C2 C1 C4 120.177 C2 C1 C5 120.177
C2 C6 H7 179.972 H3 C1 C4 115.803
H3 C1 C5 115.803 C4 C1 C5 59.017
C4 C5 H10 118.712 C4 C5 H11 118.248
C5 C4 H8 118.712 C5 C4 H9 118.248
H8 C4 H9 114.706 H10 C5 H11 114.706
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.364     -0.037
2 C 0.059     -0.001
3 H 0.231     0.146
4 C -0.404     -0.305
5 C -0.404     -0.305
6 C -0.259     -0.407
7 H 0.244     0.279
8 H 0.221     0.144
9 H 0.228     0.171
10 H 0.221     0.144
11 H 0.228     0.171


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.800 0.395 0.000 0.892
CHELPG        
AIM        
ESP 0.807 0.403 0.000 0.902


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.214 2.695 0.000
y 2.695 -27.581 0.000
z 0.000 0.000 -31.698
Traceless
 xyz
x 0.425 2.695 0.000
y 2.695 2.875 0.000
z 0.000 0.000 -3.301
Polar
3z2-r2-6.602
x2-y2-1.633
xy2.695
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.381 2.296 0.000
y 2.296 7.057 0.000
z 0.000 0.000 5.803


<r2> (average value of r2) Å2
<r2> 120.924
(<r2>)1/2 10.997