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: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-193.996373
Energy at 298.15K-194.000927
HF Energy-193.996373
Nuclear repulsion energy141.198332
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 wB97X-D/cc-pVDZ
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' 3492 3326 74.78      
2 A' 3217 3065 20.57      
3 A' 3197 3045 3.50      
4 A' 3158 3008 5.20      
5 A' 3051 2907 21.66      
6 A' 2240 2134 7.58      
7 A' 1729 1647 7.40      
8 A' 1489 1419 11.41      
9 A' 1442 1374 7.68      
10 A' 1404 1338 6.68      
11 A' 1277 1216 0.11      
12 A' 1132 1078 0.12      
13 A' 979 932 20.23      
14 A' 916 873 2.16      
15 A' 681 649 57.23      
16 A' 666 634 4.00      
17 A' 390 372 8.77      
18 A' 166 158 0.65      
19 A" 3116 2968 14.55      
20 A" 1496 1425 9.59      
21 A" 1074 1023 1.34      
22 A" 997 950 0.65      
23 A" 762 726 34.12      
24 A" 647 616 62.54      
25 A" 520 496 20.96      
26 A" 287 274 2.94      
27 A" 118 112 0.90      

Unscaled Zero Point Vibrational Energy (zpe) 19821.2 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 18881.7 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 wB97X-D/cc-pVDZ
ABC
0.39775 0.11141 0.08846

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.112 -1.003 0.000
C2 2.220 -0.418 0.000
C3 1.206 0.238 0.000
H4 0.117 2.083 0.000
C5 0.000 1.003 0.000
H6 -2.071 1.165 0.000
C7 -1.232 0.472 0.000
H8 -0.656 -1.602 0.000
H9 -2.157 -1.246 0.881
H10 -2.157 -1.246 -0.881
C11 -1.559 -0.987 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06662.27444.30103.70265.61844.58803.81485.34775.34774.6706
C21.06661.20783.26832.63604.57413.56553.11004.54134.54133.8215
C32.27441.20782.14281.42823.40602.44972.61773.78053.78053.0243
H44.30103.26832.14281.08682.37292.10133.76544.12734.12733.4979
C53.70262.63601.42821.08682.07751.34162.68613.23863.23862.5278
H65.61844.57413.40602.37292.07751.08793.10802.56872.56872.2123
C74.58803.56552.44972.10131.34161.08792.15292.14132.14131.4955
H83.81483.11002.61773.76542.68613.10802.15291.77661.77661.0925
H95.34774.54133.78054.12733.23862.56872.14131.77661.76101.0958
H105.34774.54133.78054.12733.23862.56872.14131.77661.76101.0958
C114.67063.82153.02433.49792.52782.21231.49551.09251.09581.0958

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 179.636 C2 C3 C5 179.459
C3 C5 H4 116.203 C3 C5 C7 124.332
H4 C5 C7 119.465 C5 C7 H6 117.159
C5 C7 C11 125.902 H6 C7 C11 116.939
C7 C11 H8 111.639 C7 C11 H9 110.500
C7 C11 H10 110.500 H8 C11 H9 108.560
H8 C11 H10 108.560 H9 C11 H10 106.935
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.245      
2 C 0.090      
3 C -0.006      
4 H 0.178      
5 C -0.443      
6 H 0.155      
7 C -0.034      
8 H 0.179      
9 H 0.171      
10 H 0.171      
11 C -0.706      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.901 -0.230 0.000 0.930
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.865 -2.177 0.000
y -2.177 -28.589 0.000
z 0.000 0.000 -33.278
Traceless
 xyz
x 5.069 -2.177 0.000
y -2.177 0.983 0.000
z 0.000 0.000 -6.051
Polar
3z2-r2-12.103
x2-y22.724
xy-2.177
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.974 -0.716 0.000
y -0.716 7.619 0.000
z 0.000 0.000 5.458


<r2> (average value of r2) Å2
<r2> 133.267
(<r2>)1/2 11.544