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

using model chemistry: B3LYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-194.127762
Energy at 298.15K-194.132273
Nuclear repulsion energy141.518985
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/6-311+G(3df,2p)
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' 3463 3348 77.39      
2 A' 3154 3050 19.33      
3 A' 3135 3031 1.16      
4 A' 3109 3006 3.72      
5 A' 3013 2913 19.97      
6 A' 2192 2120 8.30      
7 A' 1677 1622 6.41      
8 A' 1483 1434 11.12      
9 A' 1432 1384 6.23      
10 A' 1402 1355 5.95      
11 A' 1268 1226 0.25      
12 A' 1121 1084 0.12      
13 A' 972 940 19.11      
14 A' 900 870 3.06      
15 A' 679 657 43.25      
16 A' 663 641 2.68      
17 A' 376 363 7.89      
18 A' 158 153 0.39      
19 A" 3051 2951 13.96      
20 A" 1484 1435 6.43      
21 A" 1065 1030 1.11      
22 A" 993 960 0.99      
23 A" 753 728 24.61      
24 A" 638 617 47.76      
25 A" 508 491 14.37      
26 A" 277 268 2.84      
27 A" 132 128 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 19547.7 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 18902.6 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/6-311+G(3df,2p)
ABC
0.40605 0.11068 0.08838

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.163 -0.909 0.000
C2 2.246 -0.374 0.000
C3 1.205 0.230 0.000
H4 0.115 2.059 0.000
C5 0.000 0.980 0.000
H6 -2.066 1.154 0.000
C7 -1.233 0.459 0.000
H8 -0.689 -1.621 0.000
H9 -2.182 -1.246 0.876
H10 -2.182 -1.246 -0.876
C11 -1.578 -0.993 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06152.26484.25423.68435.62124.60423.91755.42625.42624.7415
C21.06151.20333.23422.62284.57493.57783.18954.59694.59693.8738
C32.26481.20332.12921.41993.39942.44952.64893.79693.79693.0401
H44.25423.23422.12921.08442.36102.09233.76674.11814.11813.4896
C53.68432.62281.41991.08442.07331.33922.69133.23753.23752.5266
H65.62124.57493.39942.36102.07331.08483.09792.55712.55712.2018
C74.60423.57782.44952.09231.33921.08482.14992.13802.13801.4920
H83.91753.18952.64893.76672.69133.09792.14991.77061.77061.0882
H95.42624.59693.79694.11813.23752.55712.13801.77061.75181.0934
H105.42624.59693.79694.11813.23752.55712.13801.77061.75181.0934
C114.74153.87383.04013.48962.52662.20181.49201.08821.09341.0934

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 179.855 C2 C3 C5 178.224
C3 C5 H4 115.827 C3 C5 C7 125.172
H4 C5 C7 119.001 C5 C7 H6 117.208
C5 C7 C11 126.274 H6 C7 C11 116.518
C7 C11 H8 111.913 C7 C11 H9 110.630
C7 C11 H10 110.630 H8 C11 H9 108.505
H8 C11 H10 108.505 H9 C11 H10 106.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.228      
2 C -0.091      
3 C 0.331      
4 H 0.142      
5 C -0.516      
6 H 0.132      
7 C -0.256      
8 H 0.164      
9 H 0.149      
10 H 0.149      
11 C -0.432      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.878 -0.214 0.000 0.904
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.684 -0.494 0.000
y -0.494 8.432 0.000
z 0.000 0.000 6.331


<r2> (average value of r2) Å2
<r2> 133.612
(<r2>)1/2 11.559