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 C5H6 (3-Penten-1-yne, (Z)-)

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-194.085604
Energy at 298.15K-194.090057
HF Energy-194.085604
Nuclear repulsion energy141.266874
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 TPSSh/6-31G(2df,p)
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' 3502 3380 66.79      
2 A' 3166 3055 29.09      
3 A' 3146 3036 2.22      
4 A' 3126 3017 4.38      
5 A' 3022 2916 24.35      
6 A' 2198 2121 1.50      
7 A' 1679 1621 5.80      
8 A' 1491 1439 6.66      
9 A' 1429 1379 3.64      
10 A' 1395 1346 6.47      
11 A' 1261 1217 0.00      
12 A' 1117 1078 0.32      
13 A' 971 937 17.77      
14 A' 905 873 2.70      
15 A' 663 640 12.71      
16 A' 635 613 31.02      
17 A' 365 353 5.30      
18 A' 154 149 0.10      
19 A" 3071 2964 19.35      
20 A" 1493 1441 4.43      
21 A" 1059 1022 0.92      
22 A" 988 954 0.56      
23 A" 757 731 14.20      
24 A" 585 565 56.92      
25 A" 497 480 1.98      
26 A" 276 267 0.74      
27 A" 154 149 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 19553.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 18869.1 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 TPSSh/6-31G(2df,p)
ABC
0.40189 0.11095 0.08837

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.161 -0.920 0.000
C2 2.246 -0.379 0.000
C3 1.201 0.228 0.000
H4 0.119 2.066 0.000
C5 0.000 0.985 0.000
H6 -2.077 1.157 0.000
C7 -1.238 0.463 0.000
H8 -0.670 -1.610 0.000
H9 -2.175 -1.254 0.880
H10 -2.175 -1.254 -0.880
C11 -1.573 -0.994 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06252.27144.26233.69065.63424.61163.89225.41845.41844.7342
C21.06251.20893.24102.62824.58763.58503.16484.59214.59213.8681
C32.27141.20892.13301.41973.40642.45042.62183.79023.79023.0307
H44.26233.24102.13301.08762.37672.10113.75964.13094.13093.4973
C53.69062.62821.41971.08762.08361.34412.67983.24353.24352.5283
H65.63424.58763.40642.37672.08361.08823.10382.56862.56862.2097
C74.61163.58502.45042.10111.34411.08822.14912.14472.14471.4951
H83.89223.16482.62183.75962.67983.10382.14911.77941.77941.0926
H95.41844.59213.79024.13093.24352.56862.14471.77941.75951.0974
H105.41844.59213.79024.13093.24352.56862.14471.77941.75951.0974
C114.73423.86813.03073.49732.52832.20971.49511.09261.09741.0974

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 179.560 C2 C3 C5 177.887
C3 C5 H4 115.945 C3 C5 C7 124.881
H4 C5 C7 119.174 C5 C7 H6 117.496
C5 C7 C11 125.786 H6 C7 C11 116.718
C7 C11 H8 111.348 C7 C11 H9 110.699
C7 C11 H10 110.699 H8 C11 H9 108.684
H8 C11 H10 108.684 H9 C11 H10 106.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability