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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-193.919226
Energy at 298.15K-193.923621
Nuclear repulsion energy139.623160
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 BLYP/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' 3432 3406 56.13      
2 A' 3098 3074 46.67      
3 A' 3074 3050 2.67      
4 A' 3058 3035 5.19      
5 A' 2950 2928 30.68      
6 A' 2136 2120 0.85      
7 A' 1631 1619 4.70      
8 A' 1489 1478 8.75      
9 A' 1425 1414 6.04      
10 A' 1413 1402 6.05      
11 A' 1271 1261 0.20      
12 A' 1117 1109 1.07      
13 A' 969 961 21.86      
14 A' 882 876 1.84      
15 A' 661 656 2.43      
16 A' 626 621 54.36      
17 A' 367 365 5.03      
18 A' 158 157 0.17      
19 A" 2993 2971 27.80      
20 A" 1492 1481 8.19      
21 A" 1062 1054 0.01      
22 A" 967 960 0.78      
23 A" 753 747 27.08      
24 A" 561 557 69.24      
25 A" 504 500 3.87      
26 A" 279 277 0.52      
27 A" 136 135 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 19252.0 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 19105.7 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 BLYP/6-31G
ABC
0.39750 0.10740 0.08592

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.211 -0.903 0.000
C2 2.284 -0.367 0.000
C3 1.217 0.240 0.000
H4 0.107 2.080 0.000
C5 0.000 0.989 0.000
H6 -2.100 1.159 0.000
C7 -1.256 0.459 0.000
H8 -0.693 -1.638 0.000
H9 -2.206 -1.277 0.886
H10 -2.206 -1.277 -0.886
C11 -1.598 -1.011 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.07052.29814.30513.72705.69724.66973.97245.50145.50144.8104
C21.07051.22773.27562.65664.64243.63523.23714.66634.66633.9357
C32.29811.22772.14941.42933.44212.48252.67823.84733.84733.0807
H44.30513.27562.14941.09662.39192.11793.80304.17214.17213.5306
C53.72702.65661.42931.09662.10691.36282.71643.28413.28412.5602
H65.69724.64243.44212.39192.10691.09663.13052.59422.59422.2272
C74.66973.63522.48252.11791.36281.09662.17092.16852.16851.5096
H83.97243.23712.67823.80302.71643.13052.17091.78991.78991.1009
H95.50144.66633.84734.17213.28412.59422.16851.78991.77241.1068
H105.50144.66633.84734.17213.28412.59422.16851.78991.77241.1068
C114.81043.93573.08073.53062.56022.22721.50961.10091.10681.1068

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 179.565 C2 C3 C5 177.999
C3 C5 H4 116.005 C3 C5 C7 125.503
H4 C5 C7 118.492 C5 C7 H6 117.475
C5 C7 C11 125.995 H6 C7 C11 116.529
C7 C11 H8 111.568 C7 C11 H9 111.011
C7 C11 H10 111.011 H8 C11 H9 108.335
H8 C11 H10 108.335 H9 C11 H10 106.386
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.194      
2 C -0.425      
3 C 0.149      
4 H 0.129      
5 C -0.123      
6 H 0.099      
7 C -0.023      
8 H 0.145      
9 H 0.137      
10 H 0.137      
11 C -0.419      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.714 -0.185 0.000 0.737
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.792 -1.724 0.000
y -1.724 -28.392 0.000
z 0.000 0.000 -32.228
Traceless
 xyz
x 4.518 -1.724 0.000
y -1.724 0.618 0.000
z 0.000 0.000 -5.136
Polar
3z2-r2-10.271
x2-y22.600
xy-1.724
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 136.338
(<r2>)1/2 11.676