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All results from a given calculation for C6H5CCH (phenylacetylene)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-307.467316
Energy at 298.15K-307.471847
HF Energy-306.386017
Nuclear repulsion energy298.636341
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 MP2=FULL/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 3543 3311 71.39      
2 A 3285 3070 9.45      
3 A 3272 3057 9.64      
4 A 3256 3043 0.64      
5 A 2162 2020 0.65      
6 A 1681 1570 3.82      
7 A 1553 1452 16.31      
8 A 1247 1165 1.86      
9 A 1227 1146 0.05      
10 A 1069 998 3.24      
11 A 1028 961 0.43      
12 A 783 731 1.80      
13 A 473 442 0.26      
14 A 918 858 0.00      
15 A 841 785 0.00      
16 A 394 368 0.00      
17 A 921 860 0.14      
18 A 882 824 0.84      
19 A 733 685 82.17      
20 A 579 541 14.64      
21 A 497 465 0.14      
22 A 450 421 23.81      
23 A 341 319 0.15      
24 A 142 133 0.91      
25 A 3279 3063 20.57      
26 A 3264 3050 1.11      
27 A 1653 1544 1.84      
28 A 1509 1410 4.51      
29 A 1458 1362 0.19      
30 A 1362 1272 0.04      
31 A 1211 1132 0.01      
32 A 1123 1049 3.27      
33 A 638 596 0.05      
34 A 617 577 42.99      
35 A 522 488 0.22      
36 A 159 149 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 24034.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 22458.0 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 MP2=FULL/6-31G**
ABC
0.18984 0.05092 0.04015

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.588
C2 0.000 0.000 2.018
C3 0.000 1.212 -0.120
C4 0.000 -1.212 -0.120
C5 0.000 1.207 -1.511
C6 0.000 -1.207 -1.511
C7 0.000 0.000 -2.211
C8 0.000 0.000 3.239
H9 0.000 0.000 4.301
H10 0.000 2.145 0.428
H11 0.000 -2.145 0.428
H12 0.000 2.145 -2.050
H13 0.000 -2.145 -2.050
H14 0.000 0.000 -3.292

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.42991.40361.40362.42132.42132.79842.65183.71372.15082.15083.39983.39983.8799
C21.42992.45712.45713.72963.72964.22831.22192.28372.66952.66954.59864.59865.3098
C31.40362.45712.42471.39172.79132.41723.57114.58411.08163.40172.14403.87293.3965
C41.40362.45712.42472.79131.39172.41723.57114.58413.40171.08163.87292.14403.3965
C52.42133.72961.39172.79132.41441.39524.90175.93662.15443.87291.08163.39542.1516
C62.42133.72962.79131.39172.41441.39524.90175.93663.87292.15443.39541.08162.1516
C72.79844.22832.41722.41721.39521.39525.45016.51203.40083.40082.15122.15121.0816
C82.65181.22193.57113.57114.90174.90175.45011.06193.53593.53595.70795.70796.5317
H93.71372.28374.58414.58415.93665.93666.51201.06194.42724.42726.70386.70387.5936
H102.15082.66951.08163.40172.15443.87293.40083.53594.42724.28992.47844.95454.2946
H112.15082.66953.40171.08163.87292.15443.40083.53594.42724.28994.95452.47844.2946
H123.39984.59862.14403.87291.08163.39542.15125.70796.70382.47844.95454.29032.4789
H133.39984.59863.87292.14403.39541.08162.15125.70796.70384.95452.47844.29032.4789
H143.87995.30983.39653.39652.15162.15161.08166.53177.59364.29464.29462.47892.4789

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 120.044
C1 C3 H10 119.307 C1 C4 C6 120.044
C1 C4 H11 119.307 C2 C1 C3 120.257
C2 C1 C4 120.257 C2 C8 H9 180.000
C3 C1 C4 119.487 C3 C5 C7 120.299
C3 C5 H12 119.657 C4 C6 C7 120.299
C4 C6 H13 119.657 C5 C3 H10 120.649
C5 C7 C6 119.827 C5 C7 H14 120.087
C6 C4 H11 120.649 C6 C7 H14 120.087
C7 C5 H12 120.043 C7 C6 H13 120.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability