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: B3LYP/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-39.784634
Energy at 298.15K-39.794230
Nuclear repulsion energy110.925325
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 B3LYP/CEP-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 3112 3014 108.16      
2 A 3112 3014 1.44      
3 A 3048 2952 42.29      
4 A 3033 2938 48.47      
5 A 3027 2931 86.25      
6 A 3022 2927 13.52      
7 A 2328 2254 0.12      
8 A 1518 1470 12.35      
9 A 1504 1457 1.07      
10 A 1496 1449 2.09      
11 A 1494 1447 11.55      
12 A 1437 1391 0.80      
13 A 1427 1382 6.19      
14 A 1379 1335 2.76      
15 A 1308 1267 6.49      
16 A 1161 1124 3.25      
17 A 1115 1080 7.15      
18 A 1061 1027 1.31      
19 A 1048 1015 1.32      
20 A 894 866 5.16      
21 A 753 729 0.20      
22 A 483 468 1.84      
23 A 325 314 0.16      
24 A 262 254 9.46      
25 A 91 88 2.29      
26 A 3120 3021 155.87      
27 A 3112 3014 30.38      
28 A 3090 2992 1.10      
29 A 3064 2967 8.59      
30 A 1512 1464 10.88      
31 A 1494 1446 11.05      
32 A 1316 1275 0.02      
33 A 1255 1216 0.00      
34 A 1112 1077 1.38      
35 A 1053 1020 1.55      
36 A 862 835 0.45      
37 A 744 720 7.32      
38 A 312 302 0.55      
39 A 231 224 0.22      
40 A 205 199 12.52      
41 A 75 73 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 30995.9 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 30016.4 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 B3LYP/CEP-31G
ABC
0.55784 0.03855 0.03707

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.333 -2.789 0.000
C2 -1.920 2.862 0.000
C3 0.986 -0.231 0.000
C4 0.000 0.893 0.000
C5 0.293 -1.634 0.000
C6 -0.887 1.780 0.000
H7 0.835 -3.774 0.000
H8 -2.938 2.433 0.000
H9 1.983 -2.738 0.893
H10 1.983 -2.738 -0.893
H11 -0.363 -1.709 -0.886
H12 -0.363 -1.709 0.886
H13 1.642 -0.149 -0.887
H14 1.642 -0.149 0.887
H15 -1.821 3.503 0.893
H16 -1.821 3.503 -0.893

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C16.51982.58113.91561.55415.07971.10376.74591.10571.10572.19662.19662.80212.80217.09417.0941
C26.51984.24402.74995.01051.49577.18521.10436.88386.88384.90914.90914.74754.74751.10411.1041
C32.58114.24401.49541.56452.74843.54644.74312.84172.84172.18812.18811.10601.10604.75594.7559
C43.91562.74991.49542.54361.25444.74153.31724.23254.23252.77242.77242.13732.13733.30513.3051
C51.55415.01051.56452.54363.61212.20835.19402.20742.20741.10471.10472.19342.19345.62575.6257
C65.07971.49572.74841.25443.61215.81552.15275.42655.42653.63793.63793.30193.30192.15342.1534
H71.10377.18523.54644.74152.20835.81557.26431.78531.78532.54682.54683.81853.81857.79797.7979
H86.74591.10434.74313.31725.19402.15277.26437.19397.19394.95724.95725.33195.33191.78621.7862
H91.10576.88382.84174.23252.20745.42651.78537.19391.78593.11842.56123.16032.61167.30857.5236
H101.10576.88382.84174.23252.20745.42651.78537.19391.78592.56123.11842.61163.16037.52367.3085
H112.19664.90912.18812.77241.10473.63792.54684.95723.11842.56121.77212.54013.09765.69675.4117
H122.19664.90912.18812.77241.10473.63792.54684.95722.56123.11841.77213.09762.54015.41175.6967
H132.80214.74751.10602.13732.19343.30193.81855.33193.16032.61162.54013.09761.77335.33795.0324
H142.80214.74751.10602.13732.19343.30193.81855.33192.61163.16033.09762.54011.77335.03245.3379
H157.09411.10414.75593.30515.62572.15347.79791.78627.30857.52365.69675.41175.33795.03241.7867
H167.09411.10414.75593.30515.62572.15347.79791.78627.52367.30855.41175.69675.03245.33791.7867

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 111.714 C1 C5 H11 110.264
C1 C5 H12 110.264 C2 C6 C4 178.734
C3 C4 C6 176.281 C3 C5 H11 108.899
C3 C5 H12 108.899 C4 C3 C5 112.441
C4 C3 H13 109.582 C4 C3 H14 109.582
C5 C1 H7 111.243 C5 C1 H9 111.051
C5 C1 H10 111.051 C5 C3 H13 109.239
C5 C3 H14 109.239 C6 C2 H8 110.884
C6 C2 H15 110.947 C6 C2 H16 110.947
H7 C1 H9 107.809 H7 C1 H10 107.809
H8 C2 H15 107.960 H8 C2 H16 107.960
H9 C1 H10 107.717 H11 C5 H12 106.653
H13 C3 H14 106.585 H15 C2 H16 108.016
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.370      
2 C 0.294      
3 C 0.575      
4 C -0.740      
5 C -0.277      
6 C -0.853      
7 H 0.181      
8 H 0.145      
9 H 0.120      
10 H 0.120      
11 H 0.133      
12 H 0.133      
13 H 0.123      
14 H 0.123      
15 H 0.147      
16 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.159 -0.139 0.000 0.211
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.376 -3.485 0.000
y -3.485 -34.969 0.000
z 0.000 0.000 -38.112
Traceless
 xyz
x 1.164 -3.485 0.000
y -3.485 1.775 0.000
z 0.000 0.000 -2.939
Polar
3z2-r2-5.878
x2-y2-0.408
xy-3.485
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.695 -3.475 0.000
y -3.475 11.690 0.000
z 0.000 0.000 6.467


<r2> (average value of r2) Å2
<r2> 243.826
(<r2>)1/2 15.615