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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-193.988975
Energy at 298.15K-193.994280
Nuclear repulsion energy146.434471
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/6-31G
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 3512 3379 65.76      
2 A 3265 3141 18.74      
3 A 3172 3051 9.26      
4 A 3165 3045 6.53      
5 A 2232 2147 13.75      
6 A 1533 1475 0.61      
7 A 1413 1359 3.34      
8 A 1230 1184 0.49      
9 A 1162 1118 1.49      
10 A 1102 1060 8.63      
11 A 973 936 21.01      
12 A 832 800 1.25      
13 A 765 736 4.38      
14 A 690 664 56.60      
15 A 518 498 8.33      
16 A 212 204 1.13      
17 A 3249 3125 0.08      
18 A 3164 3043 17.21      
19 A 1515 1457 3.89      
20 A 1228 1182 0.70      
21 A 1153 1110 0.01      
22 A 1119 1076 10.99      
23 A 918 883 0.03      
24 A 832 800 13.33      
25 A 640 615 67.61      
26 A 535 514 1.86      
27 A 217 209 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 20170.6 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 19404.2 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/6-31G
ABC
0.52632 0.10970 0.10402

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.629 0.000
C2 -1.095 -0.305 0.000
H3 -0.298 1.675 0.000
C4 1.296 0.312 0.755
C5 1.296 0.312 -0.755
C6 -2.019 -1.093 0.000
H7 -2.828 -1.784 0.000
H8 1.780 1.130 1.278
H9 1.349 -0.641 1.269
H10 1.780 1.130 -1.278
H11 1.349 -0.641 -1.269

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.43951.08721.53301.53302.65403.71792.24792.24592.24792.2459
C21.43952.13412.58262.58261.21452.27843.45842.77483.45842.7748
H31.08722.13412.22882.22883.25964.28572.49983.11232.49983.1123
C41.53302.58262.22881.50943.67904.68761.08491.08422.24402.2374
C51.53302.58262.22881.50943.67904.68762.24402.23741.08491.0842
C62.65401.21453.25963.67903.67901.06394.58363.62764.58363.6276
H73.71792.27844.28574.68764.68761.06395.60014.51295.60014.5129
H82.24793.45842.49981.08492.24404.58365.60011.82262.55643.1320
H92.24592.77483.11231.08422.23743.62764.51291.82263.13202.5377
H102.24793.45842.49982.24401.08494.58365.60012.55643.13201.8226
H112.24592.77483.11232.23741.08423.62764.51293.13202.53771.8226

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.945 C1 C4 C5 60.510
C1 C4 H8 117.305 C1 C4 H9 117.172
C1 C5 C4 60.510 C1 C5 H10 117.305
C1 C5 H11 117.172 C2 C1 H3 114.541
C2 C1 C4 120.613 C2 C1 C5 120.613
C2 C6 H7 179.996 H3 C1 C4 115.509
H3 C1 C5 115.509 C4 C1 C5 58.981
C4 C5 H10 118.852 C4 C5 H11 118.309
C5 C4 H8 118.852 C5 C4 H9 118.309
H8 C4 H9 114.328 H10 C5 H11 114.328
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.216      
2 C 0.179      
3 H 0.171      
4 C -0.264      
5 C -0.264      
6 C -0.453      
7 H 0.228      
8 H 0.150      
9 H 0.160      
10 H 0.150      
11 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.784 0.362 0.000 0.864
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.730 2.407 0.000
y 2.407 -27.324 0.000
z 0.000 0.000 -30.980
Traceless
 xyz
x 0.422 2.407 0.000
y 2.407 2.531 0.000
z 0.000 0.000 -2.953
Polar
3z2-r2-5.907
x2-y2-1.406
xy2.407
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.651 2.412 0.000
y 2.412 6.499 0.000
z 0.000 0.000 5.014


<r2> (average value of r2) Å2
<r2> 121.964
(<r2>)1/2 11.044