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

using model chemistry: B3LYP/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 B3LYP/6-31+G**
 hartrees
Energy at 0K-194.074398
Energy at 298.15K-194.078869
Nuclear repulsion energy140.755544
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 B3LYP/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' 3482 3357 80.07      
2 A' 3175 3062 25.31      
3 A' 3157 3044 1.55      
4 A' 3132 3020 4.24      
5 A' 3027 2919 23.07      
6 A' 2199 2120 7.51      
7 A' 1685 1625 6.81      
8 A' 1486 1432 11.55      
9 A' 1433 1382 6.61      
10 A' 1400 1350 6.29      
11 A' 1268 1222 0.09      
12 A' 1121 1081 0.14      
13 A' 974 939 20.44      
14 A' 903 871 2.93      
15 A' 662 638 10.30      
16 A' 649 626 49.89      
17 A' 377 363 7.81      
18 A' 160 154 0.47      
19 A" 3074 2964 16.09      
20 A" 1487 1434 8.49      
21 A" 1062 1024 1.25      
22 A" 984 949 0.93      
23 A" 755 728 27.44      
24 A" 603 581 69.82      
25 A" 516 498 14.80      
26 A" 286 276 2.25      
27 A" 130 125 0.90      

Unscaled Zero Point Vibrational Energy (zpe) 19592.7 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 18891.3 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 B3LYP/6-31+G**
ABC
0.40287 0.10929 0.08736

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.183 -0.912 0.000
C2 2.262 -0.375 0.000
C3 1.210 0.231 0.000
H4 0.115 2.067 0.000
C5 0.000 0.984 0.000
H6 -2.076 1.159 0.000
C7 -1.242 0.459 0.000
H8 -0.695 -1.627 0.000
H9 -2.193 -1.251 0.880
H10 -2.193 -1.251 -0.880
C11 -1.588 -0.997 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06612.28014.27643.70515.65204.63243.94335.45815.45814.7718
C21.06611.21403.25172.63914.60123.60183.21124.62504.62503.9001
C32.28011.21402.13781.42553.41452.46242.66083.81473.81473.0558
H44.27643.25172.13781.08842.37072.10303.78124.13624.13623.5053
C53.70512.63911.42551.08842.08301.34812.70203.25293.25292.5394
H65.65204.60123.41452.37072.08301.08883.10962.56902.56902.2113
C74.63243.60182.46242.10301.34811.08882.15672.14612.14611.4974
H83.94333.21122.66083.78122.70203.10962.15671.77751.77751.0926
H95.45814.62503.81474.13623.25292.56902.14611.77751.75981.0976
H105.45814.62503.81474.13623.25292.56902.14611.77751.75981.0976
C114.77183.90013.05583.50532.53942.21131.49741.09261.09761.0976

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 179.681 C2 C3 C5 178.025
C3 C5 H4 115.862 C3 C5 C7 125.177
H4 C5 C7 118.962 C5 C7 H6 117.076
C5 C7 C11 126.287 H6 C7 C11 116.637
C7 C11 H8 111.806 C7 C11 H9 110.647
C7 C11 H10 110.647 H8 C11 H9 108.494
H8 C11 H10 108.494 H9 C11 H10 106.576
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.203     0.313
2 C -0.191     -0.532
3 C 0.414     0.273
4 H 0.151     0.203
5 C -0.495     -0.457
6 H 0.132     0.070
7 C 0.023     0.105
8 H 0.169     0.092
9 H 0.160     0.073
10 H 0.160     0.073
11 C -0.726     -0.213


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.888 -0.229 0.000 0.917
CHELPG        
AIM        
ESP -0.847 -0.216 0.000 0.874


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.367 -2.014 0.000
y -2.014 -29.153 0.000
z 0.000 0.000 -33.538
Traceless
 xyz
x 4.978 -2.014 0.000
y -2.014 0.800 0.000
z 0.000 0.000 -5.778
Polar
3z2-r2-11.556
x2-y22.786
xy-2.014
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.568 -0.722 0.000
y -0.722 7.793 0.000
z 0.000 0.000 5.560


<r2> (average value of r2) Å2
<r2> 134.953
(<r2>)1/2 11.617