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All results from a given calculation for C6H10 (2-Hexyne)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-39.485024
Energy at 298.15K-39.493511
HF Energy-38.707008
Nuclear repulsion energy112.268444
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/CEP-121G*
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 3161 3012 13.39      
2 A 3158 3009 37.61      
3 A 3082 2937 31.48      
4 A 3069 2924 37.07      
5 A 3061 2916 48.10      
6 A 3058 2914 11.14      
7 A 2242 2136 0.03      
8 A 1544 1471 7.32      
9 A 1528 1456 0.45      
10 A 1521 1450 7.89      
11 A 1521 1449 0.72      
12 A 1447 1379 3.59      
13 A 1445 1377 2.22      
14 A 1411 1344 2.49      
15 A 1315 1253 9.79      
16 A 1172 1117 1.65      
17 A 1130 1077 2.31      
18 A 1069 1018 1.20      
19 A 1058 1008 0.15      
20 A 907 865 3.21      
21 A 756 721 0.24      
22 A 444 423 3.32      
23 A 319 304 0.99      
24 A 224 214 5.86      
25 A 93 88 1.51      
26 A 3163 3014 14.69      
27 A 3159 3010 68.88      
28 A 3137 2989 2.27      
29 A 3109 2962 6.65      
30 A 1537 1464 8.66      
31 A 1521 1450 6.88      
32 A 1341 1278 0.02      
33 A 1276 1216 0.35      
34 A 1128 1075 0.12      
35 A 1051 1001 0.07      
36 A 873 832 0.30      
37 A 734 699 1.67      
38 A 246 235 1.67      
39 A 214 204 6.44      
40 A 169 161 2.55      
41 A 78 74 0.18      
42 A 22 21 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 31245.5 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 29770.7 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 MP2/CEP-121G*
ABC
0.58177 0.03948 0.03802

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.266 -2.782 0.000
C2 -1.820 2.878 0.000
C3 0.957 -0.249 0.000
C4 0.000 0.876 0.000
C5 0.255 -1.623 0.000
C6 -0.855 1.759 0.000
H7 0.755 -3.751 0.000
H8 -2.848 2.500 0.000
H9 1.908 -2.739 0.887
H10 1.908 -2.739 -0.887
H11 -0.393 -1.685 -0.882
H12 -0.393 -1.685 0.882
H13 1.608 -0.172 -0.882
H14 1.608 -0.172 0.882
H15 -1.683 3.503 0.888
H16 -1.683 3.503 -0.888

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C16.44662.55243.87121.53785.01231.09536.69511.09631.09632.17592.17592.77692.77696.99976.9997
C26.44664.18192.70534.95641.47737.11171.09506.79946.79944.86144.86144.67184.67181.09471.0947
C32.55244.18191.47711.54392.70483.50864.69412.80932.80932.16002.16001.09871.09874.67344.6734
C43.87122.70531.47712.51241.22914.68873.27824.18284.18282.73712.73712.11212.11213.24423.2442
C51.53784.95641.54392.51243.56012.18605.16032.18282.18281.09651.09652.17162.17165.55245.5524
C65.01231.47732.70481.22913.56015.74102.12625.35305.35303.58543.58543.25123.25122.12532.1253
H71.09537.11173.50864.68872.18605.74107.21531.77261.77262.52332.52333.78413.78417.70497.7049
H86.69511.09504.69413.27825.16032.12627.21537.13107.13104.93144.93145.26945.26941.77501.7750
H91.09636.79942.80934.18282.18285.35301.77267.13101.77463.08842.53103.13242.58477.20177.4172
H101.09636.79942.80934.18282.18285.35301.77267.13101.77462.53103.08842.58473.13247.41727.2017
H112.17594.86142.16002.73711.09653.58542.52334.93143.08842.53101.76502.50853.06715.63185.3463
H122.17594.86142.16002.73711.09653.58542.52334.93142.53103.08841.76503.06712.50855.34635.6318
H132.77694.67181.09872.11212.17163.25123.78415.26943.13242.58472.50853.06711.76455.24124.9332
H142.77694.67181.09872.11212.17163.25123.78415.26942.58473.13243.06712.50851.76454.93325.2412
H156.99971.09474.67343.24425.55242.12537.70491.77507.20177.41725.63185.34635.24124.93321.7760
H166.99971.09474.67343.24425.55242.12537.70491.77507.41727.20175.34635.63184.93325.24121.7760

picture of 2-Hexyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 C3 111.838 C1 C5 H11 110.248
C1 C5 H12 110.248 C2 C6 C4 176.733
C3 C4 C6 176.352 C3 C5 H11 108.594
C3 C5 H12 108.594 C4 C3 C5 112.520
C4 C3 H13 109.285 C4 C3 H14 109.285
C5 C1 H7 111.123 C5 C1 H9 110.808
C5 C1 H10 110.808 C5 C3 H13 109.372
C5 C3 H14 109.372 C6 C2 H8 110.611
C6 C2 H15 110.559 C6 C2 H16 110.559
H7 C1 H9 107.955 H7 C1 H10 107.955
H8 C2 H15 108.305 H8 C2 H16 108.305
H9 C1 H10 108.066 H11 C5 H12 107.183
H13 C3 H14 106.843 H15 C2 H16 108.422
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability