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 (2,4-Hexadiene, (E,E)-)

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 C2H 1Ag
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-38.727867
Energy at 298.15K-38.737572
Nuclear repulsion energy113.657161
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 Ag 3303 2984 0.00      
2 Ag 3299 2981 0.00      
3 Ag 3257 2942 0.00      
4 Ag 3174 2868 0.00      
5 Ag 1876 1695 0.00      
6 Ag 1627 1469 0.00      
7 Ag 1552 1402 0.00      
8 Ag 1464 1322 0.00      
9 Ag 1424 1287 0.00      
10 Ag 1269 1146 0.00      
11 Ag 1160 1048 0.00      
12 Ag 995 899 0.00      
13 Ag 452 408 0.00      
14 Ag 352 318 0.00      
15 Au 3226 2914 99.91      
16 Au 1612 1456 11.62      
17 Au 1165 1053 13.41      
18 Au 1119 1011 85.31      
19 Au 837 756 2.56      
20 Au 246 223 1.60      
21 Au 172 155 0.42      
22 Au 106 96 1.62      
23 Bg 3226 2914 0.00      
24 Bg 1612 1456 0.00      
25 Bg 1166 1054 0.00      
26 Bg 1067 964 0.00      
27 Bg 941 850 0.00      
28 Bg 359 325 0.00      
29 Bg 200 181 0.00      
30 Bu 3312 2992 107.18      
31 Bu 3296 2978 32.71      
32 Bu 3257 2942 52.73      
33 Bu 3173 2867 147.80      
34 Bu 1815 1639 2.68      
35 Bu 1622 1466 13.71      
36 Bu 1544 1395 20.87      
37 Bu 1436 1298 2.85      
38 Bu 1361 1229 3.71      
39 Bu 1165 1052 0.78      
40 Bu 990 895 14.76      
41 Bu 574 518 0.35      
42 Bu 149 134 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 32975.1 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 29789.8 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
0.78050 0.03999 0.03858

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.128 -2.996 0.000
C2 -1.128 2.996 0.000
C3 0.000 0.739 0.000
C4 0.000 -0.739 0.000
C5 -1.103 1.485 0.000
C6 1.103 -1.485 0.000
H7 0.123 -3.408 0.000
H8 -0.123 3.408 0.000
H9 1.652 -3.375 0.876
H10 1.652 -3.375 -0.876
H11 -1.652 3.375 0.876
H12 -1.652 3.375 -0.876
H13 0.969 1.220 0.000
H14 -0.969 -1.220 0.000
H15 -2.066 0.991 0.000
H16 2.066 -0.991 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C16.40213.90102.52325.00511.51131.08606.52441.08851.08857.00547.00544.21852.74775.10892.2131
C26.40212.52323.90101.51135.00516.52441.08607.00547.00541.08851.08852.74774.21852.21315.1089
C33.90102.52321.47731.33162.48184.14812.67184.51824.51823.23163.23161.08152.18492.08172.6949
C42.52323.90101.47732.48181.33162.67184.14813.23163.23164.51824.51822.18491.08152.69492.0817
C55.00511.51131.33162.48183.69915.04352.15835.65405.65402.15422.15422.08862.70771.08224.0219
C61.51135.00512.48181.33163.69912.15835.04352.15422.15425.65405.65402.70772.08864.02191.0822
H71.08606.52444.14812.67185.04352.15836.81961.76191.76197.06517.06514.70402.44514.91373.1007
H86.52441.08602.67184.14812.15835.04356.81967.06517.06511.76191.76192.44514.70403.10074.9137
H91.08857.00544.51823.23165.65402.15421.76197.06511.75177.51437.71584.72683.50385.80112.5728
H101.08857.00544.51823.23165.65402.15421.76197.06511.75177.71587.51434.72683.50385.80112.5728
H117.00541.08853.23164.51822.15425.65407.06511.76197.51437.71581.75173.50384.72682.57285.8011
H127.00541.08853.23164.51822.15425.65407.06511.76197.71587.51431.75173.50384.72682.57285.8011
H134.21852.74771.08152.18492.08862.70774.70402.44514.72684.72683.50383.50383.11523.04362.4686
H142.74774.21852.18491.08152.70772.08862.44514.70403.50383.50384.72684.72683.11522.46863.0436
H155.10892.21312.08172.69491.08224.02194.91373.10075.80115.80112.57282.57283.04362.46864.5837
H162.21315.10892.69492.08174.02191.08223.10074.91372.57282.57285.80115.80112.46863.04364.5837

picture of 2,4-Hexadiene, (E,E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C6 C4 125.012 C1 C6 H16 116.169
C2 C5 C3 125.012 C2 C5 H15 116.169
C3 C4 C6 124.065 C3 C4 H14 116.415
C3 C5 H15 118.819 C4 C3 C5 124.065
C4 C3 H13 116.415 C4 C6 H16 118.819
C5 C2 H8 111.343 C5 C2 H11 110.857
C5 C2 H12 110.857 C5 C3 H13 119.520
C6 C1 H7 111.343 C6 C1 H9 110.857
C6 C1 H10 110.857 C6 C4 H14 119.520
H7 C1 H9 108.241 H7 C1 H10 108.241
H8 C2 H11 108.241 H8 C2 H12 108.241
H9 C1 H10 107.150 H11 C2 H12 107.150
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 -0.559      
2 C -0.559      
3 C -0.159      
4 C -0.159      
5 C -0.181      
6 C -0.181      
7 H 0.177      
8 H 0.177      
9 H 0.164      
10 H 0.164      
11 H 0.164      
12 H 0.164      
13 H 0.199      
14 H 0.199      
15 H 0.195      
16 H 0.195      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.359 -0.730 0.000
y -0.730 -35.821 0.000
z 0.000 0.000 -42.015
Traceless
 xyz
x 3.559 -0.730 0.000
y -0.730 2.866 0.000
z 0.000 0.000 -6.424
Polar
3z2-r2-12.849
x2-y20.462
xy-0.730
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.144 -4.574 0.000
y -4.574 14.499 0.000
z 0.000 0.000 6.484


<r2> (average value of r2) Å2
<r2> 235.415
(<r2>)1/2 15.343