return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8 (Ethenylcyclopropane)

using model chemistry: MP4/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 MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-194.755131
Energy at 298.15K-194.763186
HF Energy-193.959560
Nuclear repulsion energy161.284398
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 MP4/6-31G*
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' 3251 3176        
2 A' 3249 3174        
3 A' 3166 3093        
4 A' 3164 3091        
5 A' 3159 3086        
6 A' 3135 3062        
7 A' 1711 1671        
8 A' 1551 1515        
9 A' 1497 1463        
10 A' 1382 1350        
11 A' 1334 1304        
12 A' 1259 1230        
13 A' 1243 1214        
14 A' 1095 1070        
15 A' 1025 1002        
16 A' 985 962        
17 A' 841 822        
18 A' 785 767        
19 A' 445 435        
20 A' 270 264        
21 A" 3236 3162        
22 A" 3154 3081        
23 A" 1509 1474        
24 A" 1224 1196        
25 A" 1154 1127        
26 A" 1095 1070        
27 A" 1006 983        
28 A" 943 922        
29 A" 887 866        
30 A" 848 829        
31 A" 671 655        
32 A" 313 306        
33 A" 116 113        

Unscaled Zero Point Vibrational Energy (zpe) 25350.7 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 24765.1 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 MP4/aug-cc-pVDZ
ABC
0.49351 0.09999 0.09617

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.402 0.291 0.000
C2 0.259 -1.042 0.000
C3 -0.396 -2.230 0.000
C4 0.259 1.445 0.760
C5 0.259 1.445 -0.760
H6 -1.500 0.275 0.000
H7 1.361 -1.034 0.000
H8 0.148 -3.180 0.000
H9 -1.493 -2.274 0.000
H10 -0.397 2.153 1.277
H11 1.202 1.225 1.273
H12 -0.397 2.153 -1.277
H13 1.202 1.225 -1.273

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.48812.52081.53201.53201.09732.20613.51452.78752.25732.25142.25732.2514
C21.48811.35692.60012.60012.19701.10172.14112.14233.50202.76593.50202.7659
C32.52081.35693.80913.80912.73662.12541.09541.09744.56444.01424.56444.0142
C41.53202.60013.80911.52092.24522.81754.68814.18081.09461.09552.25432.2523
C51.53202.60013.80911.52092.24522.81754.68814.18082.25432.25231.09461.0955
H61.09732.19702.73662.24522.24523.14603.82762.54892.52443.13442.52443.1344
H72.20611.10172.12542.81752.81753.14602.46463.11163.85712.59873.85712.5987
H83.51452.14111.09544.68814.68813.82762.46461.87465.51034.70525.51034.7052
H92.78752.14231.09744.18084.18082.54893.11161.87464.73584.59694.73584.5969
H102.25733.50204.56441.09462.25432.52443.85715.51034.73581.84832.55373.1495
H112.25142.76594.01421.09552.25233.13442.59874.70524.59691.84833.14952.5465
H122.25733.50204.56442.25431.09462.52443.85715.51034.73582.55373.14951.8483
H132.25142.76594.01422.25231.09553.13442.59874.70524.59693.14952.54651.8483

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.695 C1 C2 H7 116.025
C1 C4 C5 60.240 C1 C4 H10 117.528
C1 C4 H11 116.962 C1 C5 C4 60.240
C1 C5 H12 117.528 C1 C5 H13 116.962
C2 C1 C4 118.839 C2 C1 C5 118.839
C2 C1 H6 115.549 C2 C3 H8 121.279
C2 C3 H9 121.226 C3 C2 H7 119.280
C4 C1 H6 116.306 C4 C5 H12 118.149
C4 C5 H13 117.913 C5 C1 H6 116.306
C5 C4 H10 118.149 C5 C4 H11 117.913
H8 C3 H9 117.495 H10 C4 H11 115.119
H12 C5 H13 115.119
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability