return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-233.057371
Energy at 298.15K-233.066748
Nuclear repulsion energy207.348516
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/6-311+G(3df,2p)
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 3230 2934 15.51      
2 A 3230 2934 15.49      
3 A 3217 2923 96.93      
4 A 3213 2919 56.45      
5 A 3192 2901 0.23      
6 A 3177 2887 0.98      
7 A 3170 2880 36.72      
8 A 3167 2877 46.26      
9 A 3160 2872 12.63      
10 A 3148 2861 29.04      
11 A 2526 2296 0.04      
12 A 1627 1478 5.65      
13 A 1614 1467 6.32      
14 A 1610 1463 0.60      
15 A 1602 1456 2.58      
16 A 1600 1454 7.50      
17 A 1600 1454 7.38      
18 A 1539 1398 1.04      
19 A 1537 1397 5.18      
20 A 1515 1377 2.79      
21 A 1431 1300 0.10      
22 A 1420 1290 14.51      
23 A 1365 1240 0.00      
24 A 1221 1110 0.16      
25 A 1207 1097 2.21      
26 A 1197 1088 0.04      
27 A 1152 1046 0.00      
28 A 1152 1046 0.00      
29 A 1101 1000 1.68      
30 A 954 867 2.40      
31 A 941 855 0.49      
32 A 804 731 0.24      
33 A 796 723 1.28      
34 A 560 509 1.05      
35 A 477 433 0.00      
36 A 370 337 1.17      
37 A 307 279 7.18      
38 A 258 234 0.26      
39 A 236 215 10.73      
40 A 111 100 2.18      
41 A 89 81 0.41      
42 A 21 19 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 32921.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 29912.9 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/6-311+G(3df,2p)
ABC
0.60962 0.04015 0.03873

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.068 0.157 -0.000
C2 -3.321 0.279 -0.000
C3 0.680 -0.699 0.000
C4 -0.750 -0.358 0.000
C5 1.591 0.533 0.000
C6 -1.898 -0.072 0.000
H7 3.694 1.042 -0.000
H8 -3.449 1.354 -0.001
H9 3.325 -0.429 -0.876
H10 3.325 -0.429 0.876
H11 1.364 1.140 0.870
H12 1.363 1.140 -0.869
H13 0.893 -1.311 0.870
H14 0.893 -1.311 -0.870
H15 -3.814 -0.121 -0.877
H16 -3.813 -0.120 0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C16.39072.53763.85281.52464.97131.08376.62681.08511.08512.15122.15122.76472.76476.94326.9431
C26.39074.11862.64924.91841.46627.05621.08256.74126.74134.84184.84184.58804.58791.08251.0825
C32.53764.11861.46941.53182.65243.48094.61122.80022.80012.14572.14571.08501.08504.61434.6143
C43.85282.64921.46942.50431.18314.65893.19694.16884.16882.73242.73242.08922.08923.19573.1957
C51.52464.91841.53182.50433.54022.16395.10662.16822.16811.08451.08452.15462.15465.51395.5136
C64.97131.46622.65241.18313.54025.70112.10745.30795.30793.58593.58583.17543.17532.10782.1077
H71.08377.05623.48094.65892.16395.70117.14991.75151.75152.48892.48893.75993.75997.64737.6471
H86.62681.08254.61123.19695.10662.10747.14997.05997.06004.89574.89555.16945.16911.75421.7542
H91.08516.74122.80024.16882.16825.30791.75157.05991.75283.05882.51163.12122.58707.14557.3574
H101.08516.74132.80014.16882.16815.30791.75157.06001.75282.51163.05882.58703.12127.35757.1454
H112.15124.84182.14572.73241.08453.58592.48894.89573.05882.51161.73902.49563.04195.60745.3281
H122.15124.84182.14572.73241.08453.58582.48894.89552.51163.05881.73903.04192.49555.32845.6071
H132.76474.58801.08502.08922.15463.17543.75995.16943.12122.58702.49563.04191.73975.15994.8552
H142.76474.58791.08502.08922.15463.17533.75995.16912.58703.12123.04192.49551.73974.85515.1600
H156.94321.08254.61433.19575.51392.10787.64731.75427.14557.35755.60745.32845.15994.85511.7544
H166.94311.08254.61433.19575.51362.10777.64711.75427.35747.14545.32815.60714.85525.16001.7544

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 112.247 C1 C5 H11 109.926
C1 C5 H12 109.924 C2 C6 C4 179.825
C3 C4 C6 179.382 C3 C5 H11 108.994
C3 C5 H12 108.993 C4 C3 C5 113.093
C4 C3 H13 108.818 C4 C3 H14 108.816
C5 C1 H7 110.987 C5 C1 H9 111.247
C5 C1 H10 111.244 C5 C3 H13 109.660
C5 C3 H14 109.659 C6 C2 H8 110.651
C6 C2 H15 110.683 C6 C2 H16 110.681
H7 C1 H9 107.726 H7 C1 H10 107.727
H8 C2 H15 108.237 H8 C2 H16 108.237
H9 C1 H10 107.743 H11 C5 H12 106.589
H13 C3 H14 106.581 H15 C2 H16 108.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.495      
2 C -0.437      
3 C -0.308      
4 C 0.100      
5 C -0.373      
6 C 0.193      
7 H 0.120      
8 H 0.128      
9 H 0.128      
10 H 0.128      
11 H 0.132      
12 H 0.132      
13 H 0.145      
14 H 0.145      
15 H 0.131      
16 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.052 0.156 -0.000 0.164
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.269 -1.336 0.000
y -1.336 -39.007 0.000
z 0.000 0.000 -38.995
Traceless
 xyz
x 5.733 -1.336 0.000
y -1.336 -2.875 0.000
z 0.000 0.000 -2.857
Polar
3z2-r2-5.715
x2-y25.739
xy-1.336
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.209 -0.609 0.000
y -0.609 8.661 0.000
z 0.000 0.000 8.188


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000