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

using model chemistry: HF/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 HF/CEP-121G*
 hartrees
Energy at 0K-38.710609
Energy at 298.15K-38.719895
Nuclear repulsion energy112.811831
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/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 3271 2955 27.90      
2 A 3246 2932 78.69      
3 A 3200 2891 63.38      
4 A 3199 2890 37.02      
5 A 3196 2887 28.48      
6 A 3173 2867 45.77      
7 A 2507 2265 0.04      
8 A 1639 1481 3.69      
9 A 1623 1466 0.22      
10 A 1615 1459 6.52      
11 A 1615 1459 1.37      
12 A 1551 1401 0.11      
13 A 1543 1394 9.00      
14 A 1521 1374 3.30      
15 A 1417 1280 18.35      
16 A 1203 1087 3.49      
17 A 1193 1078 2.62      
18 A 1152 1040 0.10      
19 A 1100 994 2.46      
20 A 954 862 1.98      
21 A 798 721 0.18      
22 A 557 503 1.04      
23 A 365 330 1.05      
24 A 303 274 8.39      
25 A 113 102 1.99      
26 A 3271 2955 28.51      
27 A 3256 2942 137.71      
28 A 3231 2919 1.24      
29 A 3220 2909 3.42      
30 A 1628 1471 5.81      
31 A 1615 1459 5.47      
32 A 1433 1294 0.04      
33 A 1366 1234 0.15      
34 A 1223 1105 0.09      
35 A 1151 1040 0.09      
36 A 937 847 0.25      
37 A 790 714 0.70      
38 A 466 421 0.03      
39 A 252 227 0.92      
40 A 238 215 10.49      
41 A 88 79 0.31      
42 A 4 4 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 33109.3 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 29911.0 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 HF/CEP-121G*
ABC
0.60382 0.03955 0.03815

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.153 -2.830 0.000
C2 -1.673 2.958 0.000
C3 0.921 -0.290 0.000
C4 0.000 0.873 0.000
C5 0.180 -1.642 0.000
C6 -0.749 1.800 0.000
H7 0.613 -3.774 0.000
H8 -2.705 2.621 0.000
H9 1.794 -2.816 0.879
H10 1.794 -2.816 -0.879
H11 -0.466 -1.693 -0.873
H12 -0.466 -1.693 0.873
H13 1.567 -0.224 -0.873
H14 1.567 -0.224 0.873
H15 -1.514 3.572 0.880
H16 -1.514 3.572 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C16.44102.55103.87841.53575.00621.08736.67811.08831.08832.16302.16302.77972.77976.99146.9914
C26.44104.15622.67314.95881.48077.10961.08546.79176.79174.88274.88274.62384.62381.08541.0854
C32.55104.15621.48311.54142.67553.49804.64952.81352.81352.15722.15721.08771.08774.64954.6495
C43.87842.67311.48312.52091.19244.68743.22064.19494.19492.74942.74942.10212.10213.21773.2177
C51.53574.95881.54142.52093.56552.17615.14732.18082.18081.08741.08742.16662.16665.55265.5526
C65.00621.48072.67551.19243.56555.73902.12095.34345.34343.61143.61143.19733.19732.12102.1210
H71.08737.10963.49804.68742.17615.73907.20481.75681.75682.50232.50233.77843.77847.69897.6989
H86.67811.08544.64953.22065.14732.12097.20487.11147.11144.93734.93735.20595.20591.76041.7604
H91.08836.79172.81354.19492.18085.34341.75687.11141.75793.07272.52463.13642.60197.19387.4058
H101.08836.79172.81354.19492.18085.34341.75687.11141.75792.52463.07272.60193.13647.40587.1938
H112.16304.88272.15722.74941.08743.61142.50234.93733.07272.52461.74512.50833.05575.64695.3679
H122.16304.88272.15722.74941.08743.61142.50234.93732.52463.07271.74513.05572.50835.36795.6469
H132.77974.62381.08772.10212.16663.19733.77845.20593.13642.60192.50833.05571.74505.19354.8888
H142.77974.62381.08772.10212.16663.19733.77845.20592.60193.13643.05572.50831.74504.88885.1935
H156.99141.08544.64953.21775.55262.12107.69891.76047.19387.40585.64695.36795.19354.88881.7605
H166.99141.08544.64953.21775.55262.12107.69891.76047.40587.19385.36795.64694.88885.19351.7605

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 112.000 C1 C5 H11 109.913
C1 C5 H12 109.913 C2 C6 C4 179.695
C3 C4 C6 179.470 C3 C5 H11 109.071
C3 C5 H12 109.071 C4 C3 C5 112.907
C4 C3 H13 108.736 C4 C3 H14 108.736
C5 C1 H7 110.963 C5 C1 H9 111.278
C5 C1 H10 111.278 C5 C3 H13 109.791
C5 C3 H14 109.791 C6 C2 H8 110.533
C6 C2 H15 110.546 C6 C2 H16 110.546
H7 C1 H9 107.708 H7 C1 H10 107.708
H8 C2 H15 108.376 H8 C2 H16 108.376
H9 C1 H10 107.734 H11 C5 H12 106.725
H13 C3 H14 106.680 H15 C2 H16 108.388
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.499      
2 C -0.595      
3 C -0.284      
4 C 0.446      
5 C -0.260      
6 C -0.510      
7 H 0.176      
8 H 0.189      
9 H 0.153      
10 H 0.153      
11 H 0.153      
12 H 0.153      
13 H 0.175      
14 H 0.175      
15 H 0.189      
16 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.124 -0.097 0.000 0.157
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.834 -3.124 0.000
y -3.124 -35.103 0.000
z 0.000 0.000 -38.808
Traceless
 xyz
x 0.122 -3.124 0.000
y -3.124 2.717 0.000
z 0.000 0.000 -2.839
Polar
3z2-r2-5.679
x2-y2-1.730
xy-3.124
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.310 -2.531 0.000
y -2.531 11.661 0.000
z 0.000 0.000 7.361


<r2> (average value of r2) Å2
<r2> 238.023
(<r2>)1/2 15.428