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All results from a given calculation for C6H5CCH (phenylacetylene)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-307.480190
Energy at 298.15K-307.484377
HF Energy-306.428405
Nuclear repulsion energy297.763045
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 MP2/6-311G*
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 3490 3317 68.01      
2 A1 3231 3070 9.87      
3 A1 3217 3057 9.50      
4 A1 3202 3043 0.47      
5 A1 2128 2022 0.18      
6 A1 1649 1567 3.73      
7 A1 1526 1450 19.79      
8 A1 1229 1168 0.98      
9 A1 1212 1152 0.01      
10 A1 1053 1001 4.90      
11 A1 1016 965 0.24      
12 A1 773 735 1.89      
13 A1 469 446 0.27      
14 A2 865 822 0.00      
15 A2 813 772 0.00      
16 A2 387 368 0.00      
17 B1 862 819 0.01      
18 B1 851 808 1.72      
19 B1 713 677 114.55      
20 B1 552 525 10.49      
21 B1 438 416 0.08      
22 B1 402 382 23.27      
23 B1 252 239 5.50      
24 B1 128 121 0.71      
25 B2 3224 3064 20.90      
26 B2 3209 3050 0.83      
27 B2 1621 1540 2.70      
28 B2 1483 1409 6.13      
29 B2 1437 1366 0.33      
30 B2 1343 1276 0.05      
31 B2 1194 1135 0.01      
32 B2 1105 1050 5.38      
33 B2 632 601 0.02      
34 B2 601 571 45.64      
35 B2 514 489 0.14      
36 B2 153 145 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 23485.2 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 22318.0 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 MP2/6-311G*
ABC
0.18862 0.05067 0.03994

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

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 2.023
C3 0.000 1.216 -0.119
C4 0.000 -1.216 -0.119
C5 0.000 1.211 -1.515
C6 0.000 -1.211 -1.515
C7 0.000 0.000 -2.218
C8 0.000 0.000 3.245
H9 0.000 0.000 4.310
H10 0.000 2.153 0.432
H11 0.000 -2.153 0.432
H12 0.000 2.154 -2.056
H13 0.000 -2.154 -2.056
H14 0.000 0.000 -3.305

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.43171.40821.40822.43022.43022.80942.65323.71832.15902.15903.41313.41313.8964
C21.43172.46322.46323.74013.74014.24101.22162.28662.67742.67744.61304.61305.3281
C31.40822.46322.43171.39652.80002.42563.57674.59261.08713.41372.15233.88703.4101
C41.40822.46322.43172.80001.39652.42563.57674.59263.41371.08713.88702.15233.4101
C52.43023.74011.39652.80002.42201.40004.91185.94982.16323.88701.08703.40832.1607
C62.43023.74012.80001.39652.42201.40004.91185.94983.88702.16323.40831.08702.1607
C72.80944.24102.42562.42561.40001.40005.46266.52773.41423.41422.16022.16021.0870
C82.65321.22163.57673.57674.91184.91185.46261.06513.54243.54245.72175.72176.5496
H93.71832.28664.59264.59265.94985.94986.52771.06514.43564.43566.72046.72047.6147
H102.15902.67741.08713.41372.16323.88703.41423.54244.43564.30622.48784.97414.3126
H112.15902.67743.41371.08713.88702.16323.41423.54244.43564.30624.97412.48784.3126
H123.41314.61302.15233.88701.08703.40832.16025.72176.72042.48784.97414.30832.4900
H133.41314.61303.88702.15233.40831.08702.16025.72176.72044.97412.48784.30832.4900
H143.89645.32813.41013.41012.16072.16071.08706.54967.61474.31264.31262.49002.4900

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 120.099
C1 C3 H10 119.261 C1 C4 C6 120.099
C1 C4 H11 119.261 C2 C1 C3 120.299
C2 C1 C4 120.299 C2 C8 H9 180.000
C3 C1 C4 119.402 C3 C5 C7 120.314
C3 C5 H12 119.618 C4 C6 C7 120.314
C4 C6 H13 119.618 C5 C3 H10 120.640
C5 C7 C6 119.771 C5 C7 H14 120.115
C6 C4 H11 120.640 C6 C7 H14 120.115
C7 C5 H12 120.068 C7 C6 H13 120.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability