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

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-231.692497
Energy at 298.15K-231.702946
Nuclear repulsion energy206.775290
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 HF/3-21G*
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 3256 2939 45.04      
2 A 3256 2939 11.55      
3 A 3221 2907 19.69      
4 A 3201 2890 21.80      
5 A 3198 2886 22.41      
6 A 3192 2881 21.65      
7 A 2560 2311 0.05      
8 A 1674 1511 6.36      
9 A 1660 1498 1.53      
10 A 1659 1498 8.20      
11 A 1645 1485 1.93      
12 A 1586 1432 0.26      
13 A 1575 1421 5.90      
14 A 1510 1363 2.15      
15 A 1455 1313 3.83      
16 A 1220 1101 9.78      
17 A 1206 1088 2.22      
18 A 1184 1069 6.50      
19 A 1063 959 2.05      
20 A 951 858 3.97      
21 A 806 727 0.25      
22 A 628 567 0.30      
23 A 387 350 3.25      
24 A 323 292 6.35      
25 A 116 105 2.34      
26 A 3273 2954 62.59      
27 A 3256 2939 14.21      
28 A 3240 2925 2.67      
29 A 3229 2914 5.90      
30 A 1673 1510 8.70      
31 A 1659 1498 7.29      
32 A 1466 1323 0.10      
33 A 1407 1270 0.03      
34 A 1257 1135 0.17      
35 A 1206 1088 1.89      
36 A 977 881 0.58      
37 A 814 734 4.07      
38 A 574 518 0.05      
39 A 253 228 2.82      
40 A 248 223 8.84      
41 A 90 81 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 33575.9 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 30305.6 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 HF/3-21G*
ABC
0.59586 0.04009 0.03863

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.207 -2.835 0.000
C2 -1.718 2.858 0.000
C3 0.941 -0.296 0.000
C4 0.000 0.832 0.000
C5 0.210 -1.661 0.000
C6 -0.769 1.740 0.000
H7 0.683 -3.784 0.000
H8 -2.739 2.492 0.000
H9 1.842 -2.799 0.879
H10 1.842 -2.799 -0.879
H11 -0.427 -1.716 -0.874
H12 -0.427 -1.716 0.874
H13 1.579 -0.231 -0.876
H14 1.579 -0.231 0.876
H15 -1.578 3.477 0.879
H16 -1.578 3.477 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C16.40032.55233.86031.54034.98271.08416.62871.08501.08502.16492.16492.77232.77236.95496.9549
C26.40034.12562.65644.91281.46707.06241.08446.74216.74214.83264.83264.60244.60241.08441.0844
C32.55234.12561.46921.54782.65863.49694.61672.80202.80202.15722.15721.08581.08584.62164.6216
C43.86032.65641.46922.50151.18954.66603.20254.16594.16592.72782.72782.09562.09563.20333.2033
C51.54034.91281.54782.50153.53822.17515.09292.17562.17561.08351.08352.16482.16485.51075.5107
C64.98271.46702.65861.18953.53825.71082.10865.30975.30973.58093.58093.18823.18822.10892.1089
H71.08417.06243.49694.66602.17515.71087.14771.75641.75642.50442.50443.76743.76747.65557.6555
H86.62871.08444.61673.20255.09292.10867.14777.05377.05374.87994.87995.17955.17951.75811.7581
H91.08506.74212.80204.16592.17565.30971.75647.05371.75813.06572.51483.12202.58217.14827.3613
H101.08506.74212.80204.16592.17565.30971.75647.05371.75812.51483.06572.58213.12207.36137.1482
H112.16494.83262.15722.72781.08353.58092.50444.87993.06572.51481.74862.49683.04915.60105.3194
H122.16494.83262.15722.72781.08353.58092.50444.87992.51483.06571.74863.04912.49685.31945.6010
H132.77234.60241.08582.09562.16483.18823.76745.17953.12202.58212.49683.04911.75165.17704.8704
H142.77234.60241.08582.09562.16483.18823.76745.17952.58213.12203.04912.49681.75164.87045.1770
H156.95491.08444.62163.20335.51072.10897.65551.75817.14827.36135.60105.31945.17704.87041.7582
H166.95491.08444.62163.20335.51072.10897.65551.75817.36137.14825.31945.60104.87045.17701.7582

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 111.485 C1 C5 H11 109.981
C1 C5 H12 109.981 C2 C6 C4 179.964
C3 C4 C6 179.545 C3 C5 H11 108.852
C3 C5 H12 108.852 C4 C3 C5 111.993
C4 C3 H13 109.288 C4 C3 H14 109.288
C5 C1 H7 110.756 C5 C1 H9 110.742
C5 C1 H10 110.742 C5 C3 H13 109.316
C5 C3 H14 109.316 C6 C2 H8 110.577
C6 C2 H15 110.606 C6 C2 H16 110.606
H7 C1 H9 108.136 H7 C1 H10 108.136
H8 C2 H15 108.322 H8 C2 H16 108.322
H9 C1 H10 108.226 H11 C5 H12 107.595
H13 C3 H14 107.535 H15 C2 H16 108.326
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.596 -0.310    
2 C -0.558 -0.001    
3 C -0.410 0.293    
4 C -0.123 -0.315    
5 C -0.403 0.103    
6 C -0.158 -0.092    
7 H 0.205 0.089    
8 H 0.239 0.047    
9 H 0.200 0.067    
10 H 0.200 0.067    
11 H 0.220 -0.009    
12 H 0.220 -0.009    
13 H 0.241 -0.015    
14 H 0.241 -0.015    
15 H 0.239 0.050    
16 H 0.239 0.050    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.134 -0.094 0.000 0.163
CHELPG -0.105 -0.073 0.000 0.128
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.736 -3.480 0.000
y -3.480 -35.272 0.000
z 0.000 0.000 -39.360
Traceless
 xyz
x 0.580 -3.480 0.000
y -3.480 2.776 0.000
z 0.000 0.000 -3.356
Polar
3z2-r2-6.712
x2-y2-1.464
xy-3.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.192 -2.627 0.000
y -2.627 10.343 0.000
z 0.000 0.000 6.210


<r2> (average value of r2) Å2
<r2> 292.991
(<r2>)1/2 17.117