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All results from a given calculation for C5H8 (Ethenylcyclopropane)

using model chemistry: QCISD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-194.756630
Energy at 298.15K-194.764679
HF Energy-193.959514
Nuclear repulsion energy161.221580
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 QCISD(T)/aug-cc-pVDZ
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' 3230 3158        
2 A' 3227 3156        
3 A' 3149 3080        
4 A' 3136 3067        
5 A' 3130 3060        
6 A' 3123 3054        
7 A' 1675 1638        
8 A' 1493 1459        
9 A' 1455 1422        
10 A' 1337 1307        
11 A' 1295 1267        
12 A' 1223 1196        
13 A' 1202 1176        
14 A' 1028 1005        
15 A' 989 967        
16 A' 950 929        
17 A' 813 795        
18 A' 750 734        
19 A' 434 424        
20 A' 261 255        
21 A" 3213 3141        
22 A" 3122 3053        
23 A" 1449 1417        
24 A" 1178 1151        
25 A" 1105 1080        
26 A" 1042 1019        
27 A" 980 958        
28 A" 899 879        
29 A" 890 871        
30 A" 813 795        
31 A" 654 640        
32 A" 307 300        
33 A" 107 104        

Unscaled Zero Point Vibrational Energy (zpe) 24827.8 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 24276.6 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 QCISD(T)/aug-cc-pVDZ
ABC
0.49320 0.09989 0.09606

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.400 0.292 0.000
C2 0.260 -1.044 0.000
C3 -0.400 -2.230 0.000
C4 0.260 1.446 0.761
C5 0.260 1.446 -0.761
H6 -1.497 0.274 0.000
H7 1.362 -1.040 0.000
H8 0.141 -3.182 0.000
H9 -1.497 -2.270 0.000
H10 -0.397 2.153 1.277
H11 1.204 1.228 1.273
H12 -0.397 2.153 -1.277
H13 1.204 1.228 -1.273

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.49002.52121.53171.53171.09732.20843.51602.78692.25752.25212.25752.2521
C21.49001.35682.60322.60322.19691.10162.14172.14263.50492.77063.50492.7706
C32.52121.35683.81063.81062.73372.12581.09581.09784.56494.01884.56494.0188
C41.53172.60323.81061.52162.24492.82284.69154.18021.09491.09582.25532.2528
C51.53172.60323.81061.52162.24492.82284.69154.18022.25532.25281.09491.0958
H61.09732.19692.73372.24492.24493.14653.82532.54472.52453.13512.52453.1351
H72.20841.10162.12582.82282.82283.14652.46603.11233.86222.60583.86222.6058
H83.51602.14171.09584.69154.69153.82532.46601.87485.51254.71235.51254.7123
H92.78692.14261.09784.18024.18022.54473.11231.87484.73384.59974.73384.5997
H102.25753.50494.56491.09492.25532.52453.86225.51254.73381.84862.55503.1501
H112.25212.77064.01881.09582.25283.13512.60584.71234.59971.84863.15012.5464
H122.25753.50494.56492.25531.09492.52453.86225.51254.73382.55503.15011.8486
H132.25212.77064.01882.25281.09583.13512.60584.71234.59973.15012.54641.8486

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.590 C1 C2 H7 116.077
C1 C4 C5 60.219 C1 C4 H10 117.548
C1 C4 H11 117.025 C1 C5 C4 60.219
C1 C5 H12 117.548 C1 C5 H13 117.025
C2 C1 C4 118.962 C2 C1 C5 118.962
C2 C1 H6 115.394 C2 C3 H8 121.308
C2 C3 H9 121.240 C3 C2 H7 119.333
C4 C1 H6 116.298 C4 C5 H12 118.158
C4 C5 H13 117.882 C5 C1 H6 116.298
C5 C4 H10 118.158 C5 C4 H11 117.882
H8 C3 H9 117.453 H10 C4 H11 115.092
H12 C5 H13 115.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability