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 (1-Hexyne)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-39.058924
Energy at 298.15K-39.068007
HF Energy-38.561907
Nuclear repulsion energy112.956718
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 MP2/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' 3455 3339 32.49      
2 A' 3127 3022 70.20      
3 A' 3045 2942 96.21      
4 A' 3038 2936 6.17      
5 A' 3031 2929 19.31      
6 A' 3024 2922 56.35      
7 A' 2047 1978 0.81      
8 A' 1534 1482 8.67      
9 A' 1525 1473 2.22      
10 A' 1518 1467 0.60      
11 A' 1515 1464 0.38      
12 A' 1452 1403 4.59      
13 A' 1427 1379 0.74      
14 A' 1397 1350 2.82      
15 A' 1305 1261 2.54      
16 A' 1136 1098 5.18      
17 A' 1081 1045 0.16      
18 A' 1027 992 0.76      
19 A' 926 895 0.25      
20 A' 900 869 5.78      
21 A' 646 625 87.72      
22 A' 471 455 2.22      
23 A' 377 364 0.11      
24 A' 240 231 0.80      
25 A' 98 95 0.09      
26 A" 3131 3025 172.77      
27 A" 3119 3013 22.36      
28 A" 3099 2994 0.01      
29 A" 3085 2981 7.16      
30 A" 1529 1477 8.11      
31 A" 1345 1300 0.03      
32 A" 1333 1288 0.55      
33 A" 1267 1225 0.04      
34 A" 1150 1111 0.29      
35 A" 958 926 0.31      
36 A" 817 789 0.86      
37 A" 741 716 2.95      
38 A" 649 627 88.09      
39 A" 237 229 1.76      
40 A" 217 210 1.24      
41 A" 106 102 0.01      
42 A" 82 79 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 31101.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 30053.5 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 MP2/CEP-31G
ABC
0.44601 0.04215 0.03969

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.216 2.716 0.000
H2 2.205 3.224 0.000
H3 0.654 3.049 0.900
H4 0.654 3.049 -0.900
C5 1.383 1.154 0.000
H6 1.965 0.839 0.897
H7 1.965 0.839 -0.897
C8 0.000 0.412 0.000
H9 -0.589 0.713 0.897
H10 -0.589 0.713 -0.897
C11 0.168 -1.155 0.000
H12 0.751 -1.462 0.897
H13 0.751 -1.462 -0.897
C14 -2.342 -2.371 0.000
H15 -3.317 -2.825 0.000
C16 -1.166 -1.869 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 C11 H12 H13 C14 H15 C16
C11.11151.11221.11221.57082.21112.21112.60492.84122.84124.01034.29794.29796.20767.15925.1668
H21.11151.80171.80172.22752.55982.55983.57313.86163.86164.82974.98734.98737.20948.19056.1074
H31.11221.80171.79972.22072.56973.13572.86162.64573.19804.32644.51154.85616.25757.14725.3204
H41.11221.80171.79972.22073.13572.56972.86163.19802.64574.32644.85614.51156.25757.14725.3204
C51.57082.22752.22072.22071.11501.11501.56892.20992.20992.60902.83622.83625.12796.15793.9538
H62.21112.55982.56973.13571.11501.79432.20152.55633.12292.83002.60083.15955.44556.49044.2352
H72.21112.55983.13572.56971.11501.79432.20153.12292.55632.83003.15952.60085.44556.49044.2352
C82.60493.57312.86162.86161.56892.20152.20151.11401.11401.57622.20902.20903.63744.63512.5620
H92.84123.86162.64573.19802.20992.55633.12291.11401.79352.20572.55403.12093.65904.55722.7936
H102.84123.86163.19802.64572.20993.12292.55631.11401.79352.20573.12092.55403.65904.55722.7936
C114.01034.82974.32644.32642.60902.83002.83001.57622.20572.20571.11291.11292.78873.86431.5127
H124.29794.98734.51154.85612.83622.60083.15952.20902.55403.12091.11291.79363.34634.38312.1552
H134.29794.98734.85614.51152.83623.15952.60082.20903.12092.55401.11291.79363.34634.38312.1552
C146.20767.20946.25756.25755.12795.44555.44553.63743.65903.65902.78873.34633.34631.07561.2787
H157.15928.19057.14727.14726.15796.49046.49044.63514.55724.55723.86434.38314.38311.07562.3540
C165.16686.10745.32045.32043.95384.23524.23522.56202.79362.79361.51272.15522.15521.27872.3540

picture of 1-Hexyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.660 C1 C5 H7 109.660
C1 C5 C8 112.132 H2 C1 H3 108.231
H2 C1 H4 108.231 H2 C1 C5 111.128
H3 C1 H4 108.014 H3 C1 C5 110.565
H4 C1 C5 110.565 C5 C8 H9 109.752
C5 C8 H10 109.752 C5 C8 C11 112.104
H6 C5 H7 107.152 H6 C5 C8 109.053
H7 C5 C8 109.053 C8 C11 H12 109.253
C8 C11 H13 109.253 C8 C11 C16 112.060
H9 C8 H10 107.222 H9 C8 C11 108.941
H10 C8 C11 108.941 C11 C16 C14 174.935
H12 C11 H13 107.377 H12 C11 C16 109.391
H13 C11 C16 109.391 H15 C14 C16 178.100
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability