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All results from a given calculation for C6H5CCH (phenylacetylene)

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-308.047342
Energy at 298.15K-308.052043
HF Energy-307.710475
Nuclear repulsion energy298.386097
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 B2PLYP/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 A1 3514 3336 73.53      
2 A1 3243 3078 7.61      
3 A1 3231 3067 17.60      
4 A1 3213 3049 0.35      
5 A1 2196 2084 0.23      
6 A1 1669 1584 2.28      
7 A1 1548 1469 16.33      
8 A1 1238 1175 1.62      
9 A1 1221 1159 0.02      
10 A1 1063 1009 2.86      
11 A1 1023 971 0.10      
12 A1 780 741 2.67      
13 A1 473 449 0.26      
14 A2 948 900 0.00      
15 A2 852 809 0.00      
16 A2 408 388 0.00      
17 B1 962 913 0.00      
18 B1 911 865 2.60      
19 B1 755 716 68.85      
20 B1 674 640 3.92      
21 B1 566 538 8.00      
22 B1 496 471 39.26      
23 B1 363 344 0.03      
24 B1 144 136 0.88      
25 B2 3238 3073 23.62      
26 B2 3221 3058 4.15      
27 B2 1640 1557 1.33      
28 B2 1498 1422 5.21      
29 B2 1381 1311 0.28      
30 B2 1349 1281 0.00      
31 B2 1205 1144 0.00      
32 B2 1117 1060 3.40      
33 B2 639 606 0.02      
34 B2 611 580 44.75      
35 B2 525 498 0.13      
36 B2 158 150 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 24034.4 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 22813.4 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 B2PLYP/6-31G*
ABC
0.18944 0.05085 0.04009

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.592
C2 0.000 0.000 2.025
C3 0.000 1.213 -0.120
C4 0.000 -1.213 -0.120
C5 0.000 1.209 -1.514
C6 0.000 -1.209 -1.514
C7 0.000 0.000 -2.214
C8 0.000 0.000 3.241
H9 0.000 0.000 4.306
H10 0.000 2.149 0.427
H11 0.000 -2.149 0.427
H12 0.000 2.149 -2.056
H13 0.000 -2.149 -2.056
H14 0.000 0.000 -3.299

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.43321.40641.40642.42852.42852.80652.64873.71352.15502.15503.41013.41013.8917
C21.43322.46452.46453.74033.74034.23971.21552.28032.67812.67814.61224.61225.3249
C31.40642.46452.42521.39412.79382.41993.57314.58901.08403.40542.15003.87903.4027
C41.40642.46452.42522.79381.39412.41993.57314.58903.40541.08403.87902.15003.4027
C52.42853.74031.39412.79382.41701.39664.90645.94422.15673.87791.08523.40102.1558
C62.42853.74032.79381.39412.41701.39664.90645.94423.87792.15673.40101.08522.1558
C72.80654.23972.41992.41991.39661.39665.45526.52003.40463.40462.15502.15501.0852
C82.64871.21553.57313.57314.90644.90645.45521.06483.54063.54065.71585.71586.5404
H93.71352.28034.58904.58905.94425.94426.52001.06484.43434.43436.71456.71457.6052
H102.15502.67811.08403.40542.15673.87793.40463.54064.43434.29722.48224.96304.3013
H112.15502.67813.40541.08403.87792.15673.40463.54064.43434.29724.96302.48224.3013
H123.41014.61222.15003.87901.08523.40102.15505.71586.71452.48224.96304.29822.4832
H133.41014.61223.87902.15003.40101.08522.15505.71586.71454.96302.48224.29822.4832
H143.89175.32493.40273.40272.15582.15581.08526.54047.60524.30134.30132.48322.4832

picture of phenylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C8 180.000 C1 C3 C5 120.264
C1 C3 H10 119.270 C1 C4 C6 120.264
C1 C4 H11 119.270 C2 C1 C3 120.432
C2 C1 C4 120.432 C2 C8 H9 180.000
C3 C1 C4 119.135 C3 C5 C7 120.248
C3 C5 H12 119.747 C4 C6 C7 120.248
C4 C6 H13 119.747 C5 C3 H10 120.467
C5 C7 C6 119.841 C5 C7 H14 120.080
C6 C4 H11 120.467 C6 C7 H14 120.080
C7 C5 H12 120.005 C7 C6 H13 120.005
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.001      
2 C 0.254      
3 C -0.156      
4 C -0.156      
5 C -0.165      
6 C -0.165      
7 C -0.153      
8 C -0.555      
9 H 0.242      
10 H 0.178      
11 H 0.178      
12 H 0.166      
13 H 0.166      
14 H 0.166      


Electric dipole moments


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 3.929 0.000 0.000
y 0.000 11.083 0.000
z 0.000 0.000 18.696


<r2> (average value of r2) Å2
<r2> 265.255
(<r2>)1/2 16.287