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

using model chemistry: B3LYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-194.132413
Energy at 298.15K-194.136930
Nuclear repulsion energy141.512595
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/cc-pVTZ
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' 3470 3354 75.17      
2 A' 3159 3053 22.18      
3 A' 3139 3035 1.30      
4 A' 3114 3010 4.00      
5 A' 3017 2916 20.24      
6 A' 2198 2125 4.95      
7 A' 1682 1626 6.18      
8 A' 1482 1433 10.25      
9 A' 1434 1386 5.63      
10 A' 1403 1356 5.92      
11 A' 1270 1227 0.16      
12 A' 1123 1085 0.14      
13 A' 973 940 19.04      
14 A' 901 871 2.93      
15 A' 676 654 43.62      
16 A' 664 642 2.13      
17 A' 376 363 7.31      
18 A' 158 153 0.34      
19 A" 3055 2953 16.16      
20 A" 1483 1434 6.31      
21 A" 1067 1031 0.88      
22 A" 992 959 0.86      
23 A" 751 726 23.45      
24 A" 631 610 51.92      
25 A" 508 491 11.13      
26 A" 278 269 2.06      
27 A" 134 130 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 19568.4 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 18914.8 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/cc-pVTZ
ABC
0.40686 0.11052 0.08832

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.165 -0.906 0.000
C2 2.248 -0.373 0.000
C3 1.206 0.229 0.000
H4 0.115 2.057 0.000
C5 0.000 0.979 0.000
H6 -2.065 1.155 0.000
C7 -1.234 0.459 0.000
H8 -0.691 -1.620 0.000
H9 -2.184 -1.244 0.876
H10 -2.184 -1.244 -0.876
C11 -1.580 -0.992 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06102.26414.25253.68415.62204.60583.92185.43065.43064.7456
C21.06101.20323.23332.62324.57593.57963.19274.60064.60063.8773
C32.26411.20322.12911.42043.40002.45052.64923.79833.79833.0415
H44.25253.23332.12911.08422.35992.09133.76474.11724.11723.4886
C53.68412.62321.42041.08422.07281.33872.68963.23713.23712.5260
H65.62204.57593.40002.35992.07281.08443.09672.55682.55682.2012
C74.60583.57962.45052.09131.33871.08442.14892.13802.13801.4918
H83.92183.19272.64923.76472.68963.09672.14891.77101.77101.0882
H95.43064.60063.79834.11723.23712.55682.13801.77101.75171.0934
H105.43064.60063.79834.11723.23712.55682.13801.77101.75171.0934
C114.74563.87733.04153.48862.52602.20121.49181.08821.09341.0934

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 179.848 C2 C3 C5 178.125
C3 C5 H4 115.786 C3 C5 C7 125.253
H4 C5 C7 118.961 C5 C7 H6 117.224
C5 C7 C11 126.274 H6 C7 C11 116.503
C7 C11 H8 111.845 C7 C11 H9 110.642
C7 C11 H10 110.642 H8 C11 H9 108.536
H8 C11 H10 108.536 H9 C11 H10 106.455
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.135     0.314
2 C -0.265     -0.538
3 C 0.071     0.276
4 H 0.124     0.196
5 C -0.123     -0.442
6 H 0.116     0.066
7 C -0.099     0.109
8 H 0.108     0.092
9 H 0.102     0.077
10 H 0.102     0.077
11 C -0.271     -0.228


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.837 -0.184 0.000 0.857
CHELPG        
AIM        
ESP -0.821 -0.194 0.000 0.844


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.269 -1.928 0.000
y -1.928 -28.956 0.000
z 0.000 0.000 -33.002
Traceless
 xyz
x 4.710 -1.928 0.000
y -1.928 0.679 0.000
z 0.000 0.000 -5.389
Polar
3z2-r2-10.779
x2-y22.687
xy-1.928
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.160 -0.547 0.000
y -0.547 7.801 0.000
z 0.000 0.000 5.222


<r2> (average value of r2) Å2
<r2> 133.542
(<r2>)1/2 11.556