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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-194.026675
Energy at 298.15K-194.031182
Nuclear repulsion energy139.775564
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/LANL2DZ
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' 3494 3359 73.70      
2 A' 3191 3068 44.99      
3 A' 3164 3041 3.88      
4 A' 3151 3029 4.33      
5 A' 3030 2912 25.72      
6 A' 2179 2094 5.65      
7 A' 1684 1619 6.35      
8 A' 1507 1448 17.05      
9 A' 1445 1389 14.34      
10 A' 1415 1360 5.00      
11 A' 1285 1235 0.42      
12 A' 1134 1090 0.57      
13 A' 984 946 26.04      
14 A' 900 865 1.43      
15 A' 697 669 69.35      
16 A' 664 638 2.72      
17 A' 370 356 8.25      
18 A' 153 147 0.65      
19 A" 3095 2975 28.34      
20 A" 1512 1453 15.28      
21 A" 1085 1043 0.02      
22 A" 1017 978 0.74      
23 A" 778 747 43.90      
24 A" 663 637 82.27      
25 A" 513 493 17.46      
26 A" 282 271 2.21      
27 A" 129 124 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 19759.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 18992.9 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/LANL2DZ
ABC
0.39928 0.10733 0.08594

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.212 -0.905 0.000
C2 2.285 -0.376 0.000
C3 1.219 0.230 0.000
H4 0.115 2.073 0.000
C5 0.000 0.989 0.000
H6 -2.093 1.161 0.000
C7 -1.254 0.463 0.000
H8 -0.707 -1.632 0.000
H9 -2.207 -1.258 0.883
H10 -2.207 -1.258 -0.883
C11 -1.602 -1.003 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06652.29344.29613.72825.69254.67013.98545.50125.50124.8150
C21.06651.22693.27252.66194.64013.63713.24504.66214.66213.9379
C32.29341.22692.14801.43553.43992.48342.67913.83783.83783.0792
H44.29613.27252.14801.09032.38872.11293.79534.15504.15503.5232
C53.72822.66191.43551.09032.10001.35942.71473.27063.27062.5566
H65.69254.64013.43992.38872.10001.09143.11822.57752.57752.2193
C74.67013.63712.48342.11291.35941.09142.16562.15642.15641.5075
H83.98543.24502.67913.79532.71473.11822.16561.78041.78041.0943
H95.50124.66213.83784.15503.27062.57752.15641.78041.76601.0999
H105.50124.66213.83784.15503.27062.57752.15641.78041.76601.0999
C114.81503.93793.07923.52322.55662.21931.50751.09431.09991.0999

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 179.930 C2 C3 C5 177.741
C3 C5 H4 115.846 C3 C5 C7 125.364
H4 C5 C7 118.790 C5 C7 H6 117.512
C5 C7 C11 126.119 H6 C7 C11 116.369
C7 C11 H8 111.703 C7 C11 H9 110.622
C7 C11 H10 110.622 H8 C11 H9 108.467
H8 C11 H10 108.467 H9 C11 H10 106.798
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.277      
2 C -0.447      
3 C 0.138      
4 H 0.221      
5 C -0.265      
6 H 0.203      
7 C -0.100      
8 H 0.234      
9 H 0.212      
10 H 0.212      
11 C -0.684      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.989 -0.164 0.000 1.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.407 -2.041 0.000
y -2.041 -28.132 0.000
z 0.000 0.000 -33.021
Traceless
 xyz
x 5.170 -2.041 0.000
y -2.041 1.082 0.000
z 0.000 0.000 -6.251
Polar
3z2-r2-12.503
x2-y22.725
xy-2.041
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.458 -0.775 0.000
y -0.775 6.529 0.000
z 0.000 0.000 3.990


<r2> (average value of r2) Å2
<r2> 136.265
(<r2>)1/2 11.673