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

using model chemistry: B3LYPultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-194.054817
Energy at 298.15K-194.059293
Nuclear repulsion energy140.941157
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 B3LYPultrafine/6-31G*
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' 3496 3349 63.45      
2 A' 3177 3044 32.71      
3 A' 3158 3025 1.83      
4 A' 3140 3008 4.00      
5 A' 3035 2908 23.66      
6 A' 2218 2125 1.15      
7 A' 1702 1631 5.90      
8 A' 1512 1448 7.24      
9 A' 1453 1392 4.09      
10 A' 1420 1360 6.63      
11 A' 1278 1225 0.04      
12 A' 1134 1086 0.42      
13 A' 982 941 19.40      
14 A' 910 872 1.82      
15 A' 667 639 2.90      
16 A' 632 606 44.21      
17 A' 381 365 5.17      
18 A' 163 156 0.10      
19 A" 3079 2950 21.13      
20 A" 1513 1449 6.46      
21 A" 1074 1029 0.29      
22 A" 988 947 0.55      
23 A" 761 729 21.37      
24 A" 571 547 60.38      
25 A" 513 491 1.44      
26 A" 288 276 0.50      
27 A" 150 144 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 19697.2 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 18869.9 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 B3LYPultrafine/6-31G*
ABC
0.40149 0.11007 0.08779

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.171 -0.923 0.000
C2 2.254 -0.380 0.000
C3 1.207 0.230 0.000
H4 0.115 2.070 0.000
C5 0.000 0.986 0.000
H6 -2.077 1.159 0.000
C7 -1.240 0.462 0.000
H8 -0.682 -1.618 0.000
H9 -2.184 -1.255 0.880
H10 -2.184 -1.255 -0.880
C11 -1.581 -0.996 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06602.27744.27743.70155.64574.62303.91515.43715.43714.7519
C21.06601.21143.25182.63554.59583.59343.18634.60834.60833.8834
C32.27741.21142.13911.42443.41282.45792.64343.80583.80583.0455
H44.27743.25182.13911.08912.37302.10183.77314.13694.13693.5028
C53.70152.63551.42441.08912.08391.34592.69273.25123.25122.5352
H65.64574.59583.41282.37302.08391.08923.10822.57212.57212.2114
C74.62303.59342.45792.10181.34591.08922.15422.14872.14871.4974
H83.91513.18632.64343.77312.69273.10822.15421.77861.77861.0932
H95.43714.60833.80584.13693.25122.57212.14871.77861.76051.0985
H105.43714.60833.80584.13693.25122.57212.14871.77861.76051.0985
C114.75193.88343.04553.50282.53522.21141.49741.09321.09851.0985

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 179.608 C2 C3 C5 178.196
C3 C5 H4 116.007 C3 C5 C7 125.026
H4 C5 C7 118.967 C5 C7 H6 117.301
C5 C7 C11 126.077 H6 C7 C11 116.622
C7 C11 H8 111.567 C7 C11 H9 110.798
C7 C11 H10 110.798 H8 C11 H9 108.492
H8 C11 H10 108.492 H9 C11 H10 106.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.192      
2 C -0.510      
3 C 0.339      
4 H 0.156      
5 C -0.253      
6 H 0.135      
7 C -0.060      
8 H 0.173      
9 H 0.161      
10 H 0.161      
11 C -0.493      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.714 -0.167 0.000 0.734
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.420 -1.947 0.000
y -1.947 -28.144 0.000
z 0.000 0.000 -32.091
Traceless
 xyz
x 4.697 -1.947 0.000
y -1.947 0.612 0.000
z 0.000 0.000 -5.309
Polar
3z2-r2-10.618
x2-y22.723
xy-1.947
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.106 -0.761 0.000
y -0.761 6.621 0.000
z 0.000 0.000 3.674


<r2> (average value of r2) Å2
<r2> 133.701
(<r2>)1/2 11.563