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All results from a given calculation for C5H6 (3-Penten-1-yne, (Z)-)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-193.126010
Energy at 298.15K-193.130346
HF Energy-192.687765
Nuclear repulsion energy138.281083
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 MP2/SDD
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' 3472 3352 37.70      
2 A' 3182 3072 44.56      
3 A' 3152 3043 8.46      
4 A' 3133 3024 9.60      
5 A' 3015 2910 26.89      
6 A' 2065 1994 0.44      
7 A' 1643 1586 3.32      
8 A' 1532 1479 8.53      
9 A' 1464 1413 9.14      
10 A' 1424 1375 3.59      
11 A' 1289 1245 0.62      
12 A' 1137 1098 1.08      
13 A' 972 938 18.66      
14 A' 878 848 1.49      
15 A' 668 645 52.19      
16 A' 647 624 9.97      
17 A' 356 344 5.98      
18 A' 147 142 0.71      
19 A" 3099 2991 29.24      
20 A" 1527 1474 10.45      
21 A" 1095 1057 1.09      
22 A" 941 908 0.24      
23 A" 755 729 38.44      
24 A" 613 591 74.51      
25 A" 474 458 11.56      
26 A" 254 245 2.29      
27 A" 126 122 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 19529.3 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 18851.7 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 MP2/SDD
ABC
0.38334 0.10619 0.08449

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.217 -0.964 0.000
C2 2.298 -0.413 0.000
C3 1.228 0.230 0.000
H4 0.118 2.103 0.000
C5 0.000 1.014 0.000
H6 -2.113 1.184 0.000
C7 -1.268 0.482 0.000
H8 -0.696 -1.624 0.000
H9 -2.210 -1.267 0.892
H10 -2.210 -1.267 -0.892
C11 -1.609 -1.007 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.07142.31974.36033.77645.74634.71233.96775.50755.50754.8263
C21.07141.24833.32932.70514.69123.67693.22994.67414.67413.9526
C32.31971.24832.17781.45713.47452.50872.67153.85393.85393.0950
H44.36033.32932.17781.09592.41342.13303.81544.19244.19243.5580
C53.77642.70511.45711.09592.11981.37492.72823.29883.29882.5834
H65.74634.69123.47452.41342.11981.09803.14512.60982.60982.2476
C74.71233.67692.50872.13301.37491.09802.18282.17792.17791.5279
H83.96773.22992.67153.81542.72823.14512.18281.79281.79281.1025
H95.50754.67413.85394.19243.29882.60982.17791.79281.78321.1059
H105.50754.67413.85394.19243.29882.60982.17791.79281.78321.1059
C114.82633.95263.09503.55802.58342.24761.52791.10251.10591.1059

picture of 3-Penten-1-yne, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 179.977 C2 C3 C5 178.400
C3 C5 H4 116.373 C3 C5 C7 124.688
H4 C5 C7 118.939 C5 C7 H6 117.570
C5 C7 C11 125.653 H6 C7 C11 116.777
C7 C11 H8 111.131 C7 C11 H9 110.535
C7 C11 H10 110.535 H8 C11 H9 108.539
H8 C11 H10 108.539 H9 C11 H10 107.450
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability