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: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-233.245393
Energy at 298.15K-233.255347
Nuclear repulsion energy205.901669
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 B3PW91/3-21G*
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 3127 3000 28.59      
2 A 3108 2981 9.83      
3 A 3074 2949 19.24      
4 A 3050 2926 24.15      
5 A 3044 2920 24.43      
6 A 3038 2915 13.31      
7 A 2385 2288 0.05      
8 A 1562 1499 8.09      
9 A 1546 1483 2.24      
10 A 1544 1481 10.31      
11 A 1526 1464 1.99      
12 A 1463 1404 0.16      
13 A 1457 1398 8.30      
14 A 1390 1334 1.54      
15 A 1338 1283 4.05      
16 A 1164 1117 2.63      
17 A 1130 1084 8.15      
18 A 1096 1052 3.84      
19 A 1036 994 0.97      
20 A 903 866 4.89      
21 A 768 737 0.29      
22 A 522 500 0.89      
23 A 349 335 1.05      
24 A 288 276 6.65      
25 A 103 98 2.26      
26 A 3134 3006 48.49      
27 A 3108 2982 9.77      
28 A 3105 2979 0.15      
29 A 3072 2947 5.71      
30 A 1562 1498 10.75      
31 A 1544 1481 8.84      
32 A 1362 1307 0.16      
33 A 1302 1249 0.08      
34 A 1157 1110 1.49      
35 A 1096 1052 4.59      
36 A 902 865 0.80      
37 A 759 728 6.38      
38 A 432 414 0.02      
39 A 246 236 0.03      
40 A 221 212 10.42      
41 A 83 80 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 31545.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 30264.6 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 B3PW91/3-21G*
ABC
0.58492 0.03995 0.03848

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.248 -2.819 0.000
C2 -1.767 2.834 0.000
C3 0.948 -0.284 0.000
C4 0.000 0.831 0.000
C5 0.237 -1.661 0.000
C6 -0.802 1.737 0.000
H7 0.733 -3.787 0.000
H8 -2.795 2.450 0.000
H9 1.890 -2.773 0.889
H10 1.890 -2.773 -0.889
H11 -0.409 -1.722 -0.884
H12 -0.409 -1.722 0.884
H13 1.598 -0.217 -0.885
H14 1.598 -0.217 0.885
H15 -1.641 3.467 0.888
H16 -1.641 3.467 -0.888

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C16.40632.55253.85741.53764.99561.09626.64191.09741.09742.17532.17532.77072.77076.97456.9745
C26.40634.13432.67064.92081.46097.07671.09786.75316.75314.83534.83534.62744.62741.09781.0978
C32.55254.13431.46391.54992.67343.50924.63612.80612.80612.16652.16651.10031.10034.64344.6434
C43.85742.67061.46392.50311.20974.67563.23064.16604.16602.73282.73282.10632.10633.22923.2292
C51.53764.92081.54992.50313.55272.18315.10842.18232.18231.09681.09682.17322.17325.53225.5322
C64.99561.46092.67341.20973.55275.73272.11745.32735.32733.59163.59163.21893.21892.11782.1178
H71.09627.07673.50924.67562.18315.73277.16601.77631.77632.51982.51983.77833.77837.68357.6835
H86.64191.09784.63613.23065.10842.11747.16607.07367.07364.88724.88725.21565.21561.77611.7761
H91.09746.75312.80614.16602.18235.32731.77637.07361.77723.08822.52873.12542.57327.17007.3869
H101.09746.75312.80614.16602.18235.32731.77637.07361.77722.52873.08822.57323.12547.38697.1700
H112.17534.83532.16652.73281.09683.59162.51984.88723.08822.52871.76842.50933.07055.61975.3330
H122.17534.83532.16652.73281.09683.59162.51984.88722.52873.08821.76843.07052.50935.33305.6197
H132.77074.62741.10032.10632.17323.21893.77835.21563.12542.57322.50933.07051.77065.21594.9052
H142.77074.62741.10032.10632.17323.21893.77835.21562.57323.12543.07052.50931.77064.90525.2159
H156.97451.09784.64343.22925.53222.11787.68351.77617.17007.38695.61975.33305.21594.90521.7762
H166.97451.09784.64343.22925.53222.11787.68351.77617.38697.17005.33305.61974.90525.21591.7762

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 111.526 C1 C5 H11 110.203
C1 C5 H12 110.203 C2 C6 C4 179.800
C3 C4 C6 178.852 C3 C5 H11 108.673
C3 C5 H12 108.673 C4 C3 C5 112.281
C4 C3 H13 109.642 C4 C3 H14 109.642
C5 C1 H7 110.853 C5 C1 H9 110.724
C5 C1 H10 110.724 C5 C3 H13 108.996
C5 C3 H14 108.996 C6 C2 H8 110.889
C6 C2 H15 110.933 C6 C2 H16 110.933
H7 C1 H9 108.147 H7 C1 H10 108.147
H8 C2 H15 107.980 H8 C2 H16 107.980
H9 C1 H10 108.139 H11 C5 H12 107.453
H13 C3 H14 107.145 H15 C2 H16 107.997
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.622      
2 C -0.703      
3 C -0.537      
4 C 0.005      
5 C -0.411      
6 C -0.043      
7 H 0.213      
8 H 0.247      
9 H 0.209      
10 H 0.209      
11 H 0.225      
12 H 0.225      
13 H 0.244      
14 H 0.244      
15 H 0.247      
16 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.024 0.179 -0.000 0.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.623 -3.590 0.000
y -3.590 -34.284 0.000
z 0.000 0.000 -38.447
Traceless
 xyz
x 0.742 -3.590 0.000
y -3.590 2.751 0.000
z 0.000 0.000 -3.493
Polar
3z2-r2-6.987
x2-y2-1.339
xy-3.590
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 293.761
(<r2>)1/2 17.139