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, (E)-)

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-194.065271
Energy at 298.15K-194.069679
Nuclear repulsion energy137.569697
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-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 3477 3372 83.83      
2 A 3156 3061 18.51      
3 A 3133 3039 8.48      
4 A 3111 3018 12.41      
5 A 3016 2926 28.61      
6 A 2211 2145 4.02      
7 A 1705 1654 5.82      
8 A 1458 1414 12.21      
9 A 1395 1353 0.45      
10 A 1314 1274 0.92      
11 A 1294 1255 3.74      
12 A 1126 1093 0.02      
13 A 1053 1021 12.32      
14 A 910 882 8.32      
15 A 667 647 37.64      
16 A 541 525 2.34      
17 A 390 378 1.86      
18 A 171 166 1.16      
19 A 3067 2975 16.40      
20 A 1447 1404 6.71      
21 A 1053 1021 0.10      
22 A 983 954 30.56      
23 A 811 787 0.25      
24 A 619 601 40.77      
25 A 461 447 0.14      
26 A 205 199 0.19      
27 A 170 165 2.35      

Unscaled Zero Point Vibrational Energy (zpe) 19471.6 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 18887.5 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-pVDZ
ABC
1.28917 0.07421 0.07110

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.333 -0.457 0.000
H2 -2.764 -0.960 0.884
H3 -2.764 -0.960 -0.884
H4 -2.671 0.590 0.000
C5 -0.840 -0.561 0.000
H6 -0.411 -1.570 0.000
C7 0.000 0.492 0.000
H8 -0.411 1.509 0.000
C9 1.422 0.386 0.000
C10 2.637 0.328 0.000
H11 3.707 0.270 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 C10 H11
C11.10461.10461.10081.49642.22012.51832.74933.84825.03096.0837
H21.10461.76751.78732.15452.58573.24473.52344.48495.62176.6461
H31.10461.76751.78732.15452.58573.24473.52344.48495.62176.6461
H41.10081.78731.78732.16293.12592.67292.43964.09815.31416.3864
C51.49642.15452.15452.16291.09591.34662.11362.45213.58824.6226
H62.22012.58572.58573.12591.09592.10173.07822.68043.59014.5109
C72.51833.24473.24472.67291.34662.10171.09711.42582.64163.7139
H82.74933.52343.52342.43962.11363.07821.09712.14943.26834.3004
C93.84824.48494.48494.09812.45212.68041.42582.14941.21602.2883
C105.03095.62175.62175.31413.58823.59012.64163.26831.21601.0723
H116.08376.64616.64616.38644.62264.51093.71394.30042.28831.0723

picture of 3-Penten-1-yne, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 116.997 C1 C5 C7 124.619
H2 C1 H3 106.275 H2 C1 H4 108.281
H2 C1 C5 110.959 H3 C1 H4 108.281
H3 C1 C5 110.959 H4 C1 C5 111.872
C5 C7 H8 119.409 C5 C7 C9 124.346
H6 C5 C7 118.383 C7 C9 C10 178.502
H8 C7 C9 116.245 C9 C10 H11 179.685
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 H 0.040      
3 H 0.040      
4 H 0.021      
5 C -0.042      
6 H -0.013      
7 C -0.087      
8 H 0.004      
9 C 0.475      
10 C -0.441      
11 H -0.025      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.005 -0.316 0.000 1.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.846 0.134 0.000
y 0.134 -29.655 0.000
z 0.000 0.000 -32.534
Traceless
 xyz
x 6.249 0.134 0.000
y 0.134 -0.965 0.000
z 0.000 0.000 -5.283
Polar
3z2-r2-10.566
x2-y24.809
xy0.134
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.142 1.672 0.000
y 1.672 6.581 0.000
z 0.000 0.000 4.128


<r2> (average value of r2) Å2
<r2> 160.034
(<r2>)1/2 12.650