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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-193.447737
Energy at 298.15K-193.452945
HF Energy-192.743652
Nuclear repulsion energy146.063238
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 CCD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3485 3334 61.51      
2 A 3282 3140 10.48      
3 A 3203 3064 5.57      
4 A 3181 3043 4.40      
5 A 2225 2128 5.60      
6 A 1523 1457 0.59      
7 A 1398 1337 3.85      
8 A 1234 1181 1.20      
9 A 1142 1092 0.45      
10 A 1082 1035 3.65      
11 A 984 941 17.89      
12 A 815 780 1.46      
13 A 764 731 2.22      
14 A 660 632 36.69      
15 A 493 471 5.83      
16 A 196 188 1.12      
17 A 3269 3127 0.19      
18 A 3173 3036 11.53      
19 A 1466 1403 1.65      
20 A 1205 1153 0.61      
21 A 1126 1078 1.39      
22 A 1088 1041 3.48      
23 A 940 899 5.79      
24 A 834 797 6.19      
25 A 617 590 40.68      
26 A 506 484 0.50      
27 A 206 197 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 20047.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 19179.1 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 CCD/cc-pVDZ
ABC
0.52022 0.10956 0.10412

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.649 0.000
C2 -1.088 -0.321 0.000
H3 -0.321 1.696 0.000
C4 1.285 0.331 0.756
C5 1.285 0.331 -0.756
C6 -1.998 -1.138 0.000
H7 -2.799 -1.857 0.000
H8 1.776 1.160 1.275
H9 1.331 -0.635 1.268
H10 1.776 1.160 -1.275
H11 1.331 -0.635 -1.268

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.45791.09551.52431.52432.68003.75702.24542.24212.24542.2421
C21.45792.15852.57482.57481.22222.29913.46772.74943.46772.7494
H31.09552.15852.23912.23913.29314.33252.51203.12572.51203.1257
C41.52432.57482.23911.51153.67484.69461.09461.09422.24792.2428
C51.52432.57482.23911.51153.67484.69462.24792.24281.09461.0942
C62.68001.22223.29313.67483.67481.07704.59853.59724.59853.5972
H73.75702.29914.33254.69464.69461.07705.62684.48985.62684.4898
H82.24543.46772.51201.09462.24794.59855.62681.84922.55053.1443
H92.24212.74943.12571.09422.24283.59724.48981.84923.14432.5357
H102.24543.46772.51202.24791.09464.59855.62682.55053.14431.8492
H112.24212.74943.12572.24281.09423.59724.48983.14432.53571.8492

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.771 C1 C4 C5 60.277
C1 C4 H8 117.102 C1 C4 H9 116.838
C1 C5 C4 60.277 C1 C5 H10 117.102
C1 C5 H11 116.838 C2 C1 H3 114.683
C2 C1 C4 119.386 C2 C1 C5 119.386
C2 C6 H7 179.986 H3 C1 C4 116.496
H3 C1 C5 116.496 C4 C1 C5 59.445
C4 C5 H10 118.335 C4 C5 H11 117.903
C5 C4 H8 118.335 C5 C4 H9 117.903
H8 C4 H9 115.313 H10 C5 H11 115.313
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability