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All results from a given calculation for C6H8 (1,4-Cyclohexadiene)

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1Ag
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-232.012200
Energy at 298.15K-232.020714
Nuclear repulsion energy215.628424
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 BLYP/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 Ag 3095 3078 0.00      
2 Ag 2915 2899 0.00      
3 Ag 1692 1683 0.00      
4 Ag 1486 1478 0.00      
5 Ag 1238 1231 0.00      
6 Ag 815 811 0.00      
7 Ag 539 537 0.00      
8 Au 1239 1232 0.00      
9 Au 975 970 0.00      
10 Au 371 369 0.00      
11 B1g 3067 3050 0.00      
12 B1g 1392 1384 0.00      
13 B1g 1341 1333 0.00      
14 B1g 1026 1020 0.00      
15 B1g 574 571 0.00      
16 B1u 2919 2903 52.20      
17 B1u 967 961 14.60      
18 B1u 622 618 74.99      
19 B1u 110 109 0.87      
20 B2g 2920 2904 0.00      
21 B2g 990 985 0.00      
22 B2g 956 951 0.00      
23 B2g 397 395 0.00      
24 B2u 3091 3074 84.70      
25 B2u 1654 1645 3.56      
26 B2u 1349 1341 0.81      
27 B2u 1191 1185 0.17      
28 B2u 905 900 0.22      
29 B3g 1242 1235 0.00      
30 B3g 701 697 0.00      
31 B3u 3067 3050 18.07      
32 B3u 2916 2900 80.71      
33 B3u 1495 1487 3.76      
34 B3u 1432 1424 0.00      
35 B3u 968 962 0.24      
36 B3u 846 841 9.97      

Unscaled Zero Point Vibrational Energy (zpe) 26249.4 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 26105.0 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 BLYP/3-21G
ABC
0.16801 0.16015 0.08459

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.516 0.000 0.000
C2 -1.516 0.000 0.000
C3 -0.672 1.270 0.000
C4 0.672 1.270 0.000
C5 -0.672 -1.270 0.000
C6 0.672 -1.270 0.000
H7 1.220 -2.217 0.000
H8 -1.220 -2.217 0.000
H9 1.220 2.217 0.000
H10 -1.220 2.217 0.000
H11 2.188 0.000 0.884
H12 -2.188 0.000 0.884
H13 2.188 0.000 -0.884
H14 -2.188 0.000 -0.884

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C13.03222.52941.52482.52941.52482.23693.52142.23693.52141.11033.80811.11033.8081
C23.03221.52482.52941.52482.52943.52142.23693.52142.23693.80811.11033.80811.1103
C32.52941.52481.34312.53922.87253.96663.52962.11541.09473.25122.16633.25122.1663
C41.52482.52941.34312.87252.53923.52963.96661.09472.11542.16633.25122.16633.2512
C52.52941.52482.53922.87251.34312.11541.09473.96663.52963.25122.16633.25122.1663
C61.52482.52942.87252.53921.34311.09472.11543.52963.96662.16633.25122.16633.2512
H72.23693.52143.96663.52962.11541.09472.43934.43445.06102.57584.16052.57584.1605
H83.52142.23693.52963.96661.09472.11542.43935.06104.43444.16052.57584.16052.5758
H92.23693.52142.11541.09473.96663.52964.43445.06102.43932.57584.16052.57584.1605
H103.52142.23691.09472.11543.52963.96665.06104.43442.43934.16052.57584.16052.5758
H111.11033.80813.25122.16633.25122.16632.57584.16052.57584.16054.37601.76794.7196
H123.80811.11032.16633.25122.16633.25124.16052.57584.16052.57584.37604.71961.7679
H131.11033.80813.25122.16633.25122.16632.57584.16052.57584.16051.76794.71964.3760
H143.80811.11032.16633.25122.16633.25124.16052.57584.16052.57584.71961.76794.3760

picture of 1,4-Cyclohexadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 123.632 C1 C4 H9 116.322
C1 C6 C5 123.632 C1 C6 H7 116.322
C2 C3 C4 123.632 C2 C3 H10 116.322
C2 C5 C6 123.632 C2 C5 H8 116.322
C3 C2 C5 112.736 C3 C2 H12 109.582
C3 C2 H14 109.582 C3 C4 H9 120.046
C4 C1 C6 112.736 C4 C1 H11 109.582
C4 C1 H13 109.582 C4 C3 H10 120.046
C5 C2 H12 109.582 C5 C2 H14 109.582
C5 C6 H7 120.046 C6 C1 H11 109.582
C6 C1 H13 109.582 C6 C5 H8 120.046
H11 C1 H13 105.525 H12 C2 H14 105.525
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.450      
2 C -0.450      
3 C -0.126      
4 C -0.126      
5 C -0.126      
6 C -0.126      
7 H 0.157      
8 H 0.157      
9 H 0.157      
10 H 0.157      
11 H 0.194      
12 H 0.194      
13 H 0.194      
14 H 0.194      


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 -35.255 0.000 0.000
y 0.000 -33.267 0.000
z 0.000 0.000 -39.479
Traceless
 xyz
x 1.118 0.000 0.000
y 0.000 4.100 0.000
z 0.000 0.000 -5.218
Polar
3z2-r2-10.436
x2-y2-1.988
xy0.000
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> 147.476
(<r2>)1/2 12.144