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 C6H8 ((Z)-hexa-1,3,5-triene)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-231.983355
Energy at 298.15K-231.990613
Nuclear repulsion energy197.060841
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 B1B95/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3263 3122 25.19      
2 A1 3206 3067 18.48      
3 A1 3189 3051 6.34      
4 A1 3173 3036 1.87      
5 A1 1706 1632 0.01      
6 A1 1650 1579 0.01      
7 A1 1484 1419 0.29      
8 A1 1389 1329 3.57      
9 A1 1326 1269 0.86      
10 A1 1133 1084 2.18      
11 A1 903 864 0.10      
12 A1 408 390 0.00      
13 A1 170 163 0.02      
14 A2 1056 1010 0.00      
15 A2 1010 966 0.00      
16 A2 960 918 0.00      
17 A2 745 713 0.00      
18 A2 332 318 0.00      
19 A2 152 145 0.00      
20 B1 1046 1001 38.21      
21 B1 966 924 139.86      
22 B1 857 820 3.10      
23 B1 608 582 40.13      
24 B1 104 100 0.37      
25 B2 3263 3121 0.21      
26 B2 3188 3050 0.47      
27 B2 3173 3036 6.07      
28 B2 3167 3030 0.19      
29 B2 1699 1626 8.88      
30 B2 1525 1459 9.73      
31 B2 1433 1371 0.09      
32 B2 1347 1289 0.37      
33 B2 1235 1181 3.48      
34 B2 988 946 5.37      
35 B2 710 679 0.33      
36 B2 358 343 9.81      

Unscaled Zero Point Vibrational Energy (zpe) 26460.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 25314.5 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 B1B95/3-21G
ABC
0.49536 0.05290 0.04780

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.675 0.765
C2 0.000 -0.675 0.765
C3 0.000 1.537 -0.402
C4 0.000 -1.537 -0.402
C5 0.000 2.873 -0.325
C6 0.000 -2.873 -0.325
H7 0.000 1.188 1.723
H8 0.000 -1.188 1.723
H9 0.000 1.065 -1.379
H10 0.000 -1.065 -1.379
H11 0.000 3.383 0.634
H12 0.000 -3.383 0.634
H13 0.000 3.498 -1.209
H14 0.000 -3.498 -1.209

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.34941.45132.50102.45393.71161.08692.09452.17982.76172.71144.05973.44504.6159
C21.34942.50101.45133.71162.45392.09451.08692.76172.17984.05972.71144.61593.4450
C31.45132.50103.07471.33834.41142.15373.45591.08542.78032.11645.02812.12015.0993
C42.50101.45133.07474.41141.33833.45592.15372.78031.08545.02812.11645.09932.1201
C52.45393.71161.33834.41145.74672.65224.54832.09314.07761.08546.32921.08306.4321
C63.71162.45394.41141.33835.74674.54832.65224.07762.09316.32921.08546.43211.0830
H71.08692.09452.15373.45592.65224.54832.37573.10513.83462.45054.69883.73315.5276
H82.09451.08693.45592.15374.54832.65222.37573.83463.10514.69882.45055.52763.7331
H92.17982.76171.08542.78032.09314.07763.10513.83462.13093.06984.88272.43814.5662
H102.76172.17982.78031.08544.07762.09313.83463.10512.13094.88273.06984.56622.4381
H112.71144.05972.11645.02811.08546.32922.45054.69883.06984.88276.76581.84697.1231
H124.05972.71145.02812.11646.32921.08544.69882.45054.88273.06986.76587.12311.8469
H133.44504.61592.12015.09931.08306.43213.73315.52762.43814.56621.84697.12316.9952
H144.61593.44505.09932.12016.43211.08305.52763.73314.56622.43817.12311.84696.9952

picture of (Z)-hexa-1,3,5-triene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.470 C1 C2 H8 118.173
C1 C3 C5 123.154 C1 C3 H9 117.761
C2 C1 C3 126.470 C2 C1 H7 118.173
C2 C4 C6 123.154 C2 C4 H10 117.761
C3 C1 H7 115.356 C3 C5 H11 121.314
C3 C5 H13 121.884 C4 C2 H8 115.356
C4 C6 H12 121.314 C4 C6 H14 121.884
C5 C3 H9 119.085 C6 C4 H10 119.085
H11 C5 H13 116.802 H12 C6 H14 116.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.209      
2 C -0.209      
3 C -0.226      
4 C -0.226      
5 C -0.398      
6 C -0.398      
7 H 0.209      
8 H 0.209      
9 H 0.212      
10 H 0.212      
11 H 0.203      
12 H 0.203      
13 H 0.209      
14 H 0.209      


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 -0.047 0.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.045 0.000 0.000
y 0.000 -32.334 0.000
z 0.000 0.000 -32.685
Traceless
 xyz
x -9.535 0.000 0.000
y 0.000 5.031 0.000
z 0.000 0.000 4.504
Polar
3z2-r29.009
x2-y2-9.711
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.442 0.000 0.000
y 0.000 20.455 0.000
z 0.000 0.000 7.816


<r2> (average value of r2) Å2
<r2> 231.335
(<r2>)1/2 15.210