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

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-193.462227
Energy at 298.15K-193.466458
HF Energy-192.762398
Nuclear repulsion energy141.035212
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=FULL/6-31+G**
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' 3532 3318 59.97      
2 A' 3259 3061 21.55      
3 A' 3240 3043 4.59      
4 A' 3228 3032 1.75      
5 A' 3113 2924 18.84      
6 A' 2139 2009 0.03      
7 A' 1702 1598 3.17      
8 A' 1532 1439 7.82      
9 A' 1467 1378 4.76      
10 A' 1429 1342 6.33      
11 A' 1286 1208 0.03      
12 A' 1145 1075 0.33      
13 A' 991 930 16.31      
14 A' 924 868 1.87      
15 A' 659 619 7.74      
16 A' 607 570 51.05      
17 A' 368 346 5.14      
18 A' 152 143 0.51      
19 A" 3192 2998 13.08      
20 A" 1526 1434 7.27      
21 A" 1080 1015 3.27      
22 A" 966 907 0.11      
23 A" 741 696 24.69      
24 A" 544 511 86.18      
25 A" 406 381 1.00      
26 A" 239 225 0.57      
27 A" 121 113 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 19794.1 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 18590.6 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 MP2=FULL/6-31+G**
ABC
0.39637 0.11131 0.08832

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.149 -0.972 0.000
C2 2.246 -0.410 0.000
C3 1.195 0.219 0.000
H4 0.122 2.076 0.000
C5 0.000 1.000 0.000
H6 -2.076 1.168 0.000
C7 -1.243 0.475 0.000
H8 -0.663 -1.586 0.000
H9 -2.160 -1.244 0.877
H10 -2.160 -1.244 -0.877
C11 -1.567 -0.983 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06282.28774.29543.71495.64614.62373.86085.38755.38754.7160
C21.06281.22503.27032.65214.60163.59973.13794.56944.56943.8563
C32.28771.22502.14471.42753.40642.45182.59143.76443.76443.0132
H44.29543.27032.14471.08312.37782.10383.74554.12304.12303.4944
C53.71492.65211.42751.08312.08301.34932.66983.23583.23582.5275
H65.64614.60163.40642.37782.08301.08413.09622.56852.56852.2108
C74.62373.59972.45182.10381.34931.08412.14132.13672.13671.4935
H83.86083.13792.59143.74552.66983.09622.14131.76861.76861.0871
H95.38754.56943.76444.12303.23582.56852.13671.76861.75481.0905
H105.38754.56943.76444.12303.23582.56852.13671.76861.75481.0905
C114.71603.85633.01323.49442.52752.21081.49351.08711.09051.0905

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 179.055 C2 C3 C5 177.808
C3 C5 H4 116.681 C3 C5 C7 123.975
H4 C5 C7 119.344 C5 C7 H6 117.326
C5 C7 C11 125.437 H6 C7 C11 117.238
C7 C11 H8 111.167 C7 C11 H9 110.591
C7 C11 H10 110.591 H8 C11 H9 108.615
H8 C11 H10 108.615 H9 C11 H10 107.141
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability