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

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-193.305935
Energy at 298.15K-193.310470
HF Energy-192.747897
Nuclear repulsion energy138.521320
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 CID/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 3595 3321 64.28      
2 A 3286 3035 22.14      
3 A 3280 3030 3.78      
4 A 3240 2993 14.44      
5 A 3150 2910 24.56      
6 A 2331 2154 1.18      
7 A 1826 1686 2.86      
8 A 1584 1463 9.89      
9 A 1513 1397 1.69      
10 A 1405 1298 2.00      
11 A 1389 1283 1.13      
12 A 1193 1102 0.53      
13 A 1091 1008 8.19      
14 A 961 888 4.82      
15 A 697 644 46.99      
16 A 570 527 3.38      
17 A 408 377 1.89      
18 A 182 168 1.10      
19 A 3214 2969 19.79      
20 A 1571 1451 7.30      
21 A 1138 1051 0.89      
22 A 1046 966 39.64      
23 A 855 790 0.31      
24 A 628 580 54.15      
25 A 470 434 0.30      
26 A 200 185 0.08      
27 A 179 165 1.96      

Unscaled Zero Point Vibrational Energy (zpe) 20499.8 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 18935.7 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 CID/6-31G*
ABC
1.29427 0.07524 0.07204

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.329 -0.411 0.000
H2 -2.759 -0.896 0.877
H3 -2.759 -0.896 -0.877
H4 -2.639 0.633 0.000
C5 -0.839 -0.537 0.000
H6 -0.431 -1.540 0.000
C7 0.000 0.497 0.000
H8 -0.384 1.510 0.000
C9 1.426 0.356 0.000
C10 2.623 0.264 0.000
H11 3.681 0.174 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 C10 H11
C11.09091.09091.08861.49582.20842.49992.73353.83304.99806.0385
H21.09091.75461.76682.14202.56983.21323.49274.45615.57546.5873
H31.09091.75461.76682.14202.56983.21323.49274.45615.57546.5873
H41.08861.76681.76682.14643.09752.64212.41894.07445.27476.3363
C51.49582.14202.14202.14641.08341.33102.09622.43453.55304.5751
H62.20842.56982.56983.09751.08342.08283.05072.65483.54764.4554
C72.49993.21323.21322.64211.33102.08281.08321.43332.63353.6952
H82.73353.49273.49272.41892.09623.05071.08322.14713.25554.2793
C93.83304.45614.45614.07442.43452.65481.43332.14711.20042.2621
C104.99805.57545.57545.27473.55303.54762.63353.25551.20041.0617
H116.03856.58736.58736.33634.57514.45543.69524.27932.26211.0617

picture of 3-Penten-1-yne, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 116.889 C1 C5 C7 124.241
H2 C1 H3 107.065 H2 C1 H4 108.317
H2 C1 C5 110.831 H3 C1 H4 108.317
H3 C1 C5 110.831 H4 C1 C5 111.330
C5 C7 H8 120.164 C5 C7 C9 123.404
H6 C5 C7 118.870 C7 C9 C10 178.766
H8 C7 C9 116.432 C9 C10 H11 179.560
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability