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 C6H5CHCH2 (Styrene)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-307.949835
Energy at 298.15K-307.957717
Nuclear repulsion energy319.495908
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 B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3244 3130 14.72      
2 A' 3220 3107 10.41      
3 A' 3209 3097 25.03      
4 A' 3201 3088 12.18      
5 A' 3191 3079 0.12      
6 A' 3184 3072 6.64      
7 A' 3167 3056 2.51      
8 A' 3148 3038 12.01      
9 A' 1700 1641 8.83      
10 A' 1633 1575 0.80      
11 A' 1610 1554 3.48      
12 A' 1551 1496 13.09      
13 A' 1519 1466 2.70      
14 A' 1493 1441 9.08      
15 A' 1409 1360 3.63      
16 A' 1377 1329 0.15      
17 A' 1315 1269 2.38      
18 A' 1248 1205 0.49      
19 A' 1235 1192 1.01      
20 A' 1230 1186 1.40      
21 A' 1132 1092 4.05      
22 A' 1079 1041 3.28      
23 A' 1062 1025 2.53      
24 A' 1035 998 1.01      
25 A' 795 768 0.35      
26 A' 659 636 0.02      
27 A' 578 558 3.62      
28 A' 460 444 0.08      
29 A' 242 234 0.35      
30 A" 1045 1008 14.56      
31 A" 1031 994 1.66      
32 A" 1003 968 0.07      
33 A" 954 920 53.88      
34 A" 945 912 4.80      
35 A" 864 834 0.37      
36 A" 812 783 36.14      
37 A" 726 700 50.05      
38 A" 668 644 0.99      
39 A" 451 435 8.83      
40 A" 422 407 0.47      
41 A" 208 200 2.39      
42 A" 33 32 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 29543.1 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 28506.2 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 B3LYP/3-21G
ABC
0.17239 0.05130 0.03954

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.560 0.000
C2 -1.008 -0.422 0.000
C3 -0.683 -1.776 0.000
C4 0.656 -2.182 0.000
C5 1.667 -1.220 0.000
C6 1.341 0.136 0.000
C7 -0.287 2.008 0.000
C8 -1.489 2.593 0.000
H9 -2.050 -0.125 0.000
H10 -1.473 -2.519 0.000
H11 0.906 -3.237 0.000
H12 2.708 -1.524 0.000
H13 2.129 0.882 0.000
H14 0.599 2.641 0.000
H15 -1.588 3.673 0.000
H16 -2.416 2.028 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.40772.43412.81992.43901.40641.47622.52002.16133.41293.90363.41712.15352.16523.49432.8265
C21.40771.39232.42212.79162.41432.53543.05371.08372.14713.40343.87563.39753.45924.13612.8260
C32.43411.39231.39902.41482.78403.80514.44312.14411.08412.15783.39963.86924.59925.52374.1803
C42.81992.42211.39901.39582.41724.29545.23523.39962.15521.08372.15443.39964.82366.27045.2118
C52.43902.79162.41481.39581.39463.77374.95013.87523.39782.15601.08402.15174.00605.87675.2172
C61.40642.41432.78402.41721.39462.48103.74803.40083.86813.40092.15051.08512.61264.59214.2060
C71.47622.53543.80514.29543.77372.48101.33702.76724.67965.37914.63112.66611.08862.11262.1286
C82.52003.05374.44315.23524.95013.74801.33702.77495.11176.30275.87954.00302.08881.08421.0849
H92.16131.08372.14413.39963.87523.40082.76722.77492.46264.29204.95924.29873.82943.82542.1835
H103.41292.14711.08412.15523.39783.86814.67965.11172.46262.48424.29684.95335.55996.19254.6434
H113.90363.40342.15781.08372.15603.40095.37916.30274.29202.48422.48604.29655.88597.34596.2249
H123.41713.87563.39962.15441.08402.15054.63115.87954.95924.29682.48602.47444.66876.74266.2343
H132.15353.39753.86923.39962.15171.08512.66614.00304.29874.95334.29652.47442.33194.64864.6873
H142.16523.45924.59924.82364.00602.61261.08862.08883.82945.55995.88594.66872.33192.41813.0761
H153.49434.13615.52376.27045.87674.59212.11261.08423.82546.19257.34596.74264.64862.41811.8412
H162.82652.82604.18035.21185.21724.20602.12861.08492.18354.64346.22496.23434.68733.07611.8412

picture of Styrene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.757 C1 C2 H9 119.779
C1 C6 C5 121.091 C1 C6 H13 119.043
C1 C7 C8 127.148 C1 C7 H14 114.324
C2 C1 C6 118.171 C2 C1 C7 123.061
C2 C3 C4 120.390 C2 C3 H10 119.710
C3 C2 H9 119.465 C3 C4 C5 119.540
C3 C4 H11 120.177 C4 C3 H10 119.901
C4 C5 C6 120.052 C4 C5 H12 120.105
C5 C4 H11 120.283 C5 C6 H13 119.866
C6 C1 C7 118.767 C6 C5 H12 119.843
C7 C8 H15 121.158 C7 C8 H16 122.677
C8 C7 H14 118.528 H15 C8 H16 116.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.014      
2 C -0.193      
3 C -0.181      
4 C -0.186      
5 C -0.183      
6 C -0.186      
7 C -0.171      
8 C -0.375      
9 H 0.186      
10 H 0.187      
11 H 0.187      
12 H 0.187      
13 H 0.183      
14 H 0.185      
15 H 0.190      
16 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.054 -0.120 0.000 0.132
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.550 0.065 0.000
y 0.065 -41.687 0.000
z 0.000 0.000 -53.211
Traceless
 xyz
x 5.900 0.065 0.000
y 0.065 5.693 0.000
z 0.000 0.000 -11.593
Polar
3z2-r2-23.186
x2-y20.138
xy0.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.690 -2.612 0.000
y -2.612 16.643 0.000
z 0.000 0.000 2.982


<r2> (average value of r2) Å2
<r2> 277.479
(<r2>)1/2 16.658