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All results from a given calculation for C6H8 (3-Methylenecyclopentene)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-232.058494
Energy at 298.15K-232.066879
Nuclear repulsion energy215.897488
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 B3PW91/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3247 3121 19.33      
2 A 3245 3119 4.83      
3 A 3220 3095 0.96      
4 A 3164 3041 4.25      
5 A 3136 3014 14.22      
6 A 3090 2970 13.70      
7 A 3090 2970 9.80      
8 A 3057 2939 27.15      
9 A 1716 1650 22.69      
10 A 1652 1588 0.47      
11 A 1537 1477 6.69      
12 A 1514 1455 2.87      
13 A 1499 1440 1.15      
14 A 1387 1333 1.19      
15 A 1340 1288 5.98      
16 A 1311 1260 0.14      
17 A 1284 1234 0.44      
18 A 1260 1211 4.54      
19 A 1222 1174 0.17      
20 A 1154 1109 2.03      
21 A 1040 1000 5.01      
22 A 1018 979 2.37      
23 A 995 956 5.17      
24 A 964 927 1.94      
25 A 916 880 60.97      
26 A 910 875 8.02      
27 A 854 821 11.20      
28 A 850 818 0.63      
29 A 799 768 0.92      
30 A 797 766 14.30      
31 A 683 656 17.61      
32 A 641 616 0.62      
33 A 513 493 20.65      
34 A 367 353 0.40      
35 A 291 280 1.53      
36 A 70 67 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26914.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 25870.5 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 B3PW91/3-21G
ABC
0.24175 0.11468 0.08013

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.097 -1.204 -0.000
H2 0.077 -1.820 0.889
H3 0.077 -1.820 -0.889
C4 -1.544 -0.607 0.000
H5 -2.111 -0.920 0.886
H6 -2.112 -0.920 -0.886
C7 2.178 -0.017 0.000
H8 2.763 0.899 0.000
H9 2.730 -0.952 -0.000
C10 0.840 0.012 -0.000
C11 -1.315 0.893 -0.000
H12 -2.135 1.602 -0.000
C13 -0.010 1.210 0.000
H14 0.396 2.214 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.09521.09521.56462.21862.21872.56673.55032.83891.53572.42523.46802.41553.4537
H21.09521.77762.21072.36622.95792.90803.92382.92982.17453.17644.17063.15864.1431
H31.09521.77762.21072.95802.36622.90803.92382.92982.17453.17634.17053.15854.1430
C41.56462.21072.21071.09801.09803.76834.56254.28782.46311.51792.28732.37783.4240
H52.21862.36622.95801.09801.77244.47225.27774.92223.21982.16992.67393.12064.1107
H62.21872.95792.36621.09801.77244.47235.27794.92233.21992.16992.67383.12074.1108
C72.56672.90802.90803.76834.47224.47231.08631.08601.33803.60964.60652.50822.8548
H83.55033.92383.92384.56255.27775.27791.08631.85072.11744.07814.94802.79042.7077
H92.83892.92982.92984.28784.92224.92231.08601.85072.12154.44625.49463.49013.9331
C101.53572.17452.17452.46313.21983.21991.33802.11742.12152.32863.37341.46892.2464
C112.42523.17643.17631.51792.16992.16993.60964.07814.44622.32861.08371.34292.1618
H123.46804.17064.17052.28732.67392.67384.60654.94805.49463.37341.08372.16062.6038
C132.41553.15863.15852.37783.12063.12072.50822.79043.49011.46891.34292.16061.0834
H143.45374.14314.14303.42404.11074.11082.85482.70773.93312.24642.16182.60381.0834

picture of 3-Methylenecyclopentene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 111.669 C1 C4 H6 111.672
C1 C4 C11 103.763 C1 C10 C7 126.412
C1 C10 C13 106.994 H2 C1 H3 108.485
H2 C1 C4 111.204 H2 C1 C10 110.366
H3 C1 C4 111.204 H3 C1 C10 110.365
C4 C1 C10 105.209 C4 C11 H12 122.205
C4 C11 C13 112.294 H5 C4 H6 107.624
H5 C4 C11 111.076 H6 C4 C11 111.079
C7 C10 C13 126.594 H8 C7 H9 116.847
H8 C7 C10 121.365 H9 C7 C10 121.788
C10 C13 C11 111.741 C10 C13 H14 122.600
C11 C13 H14 125.659 H12 C11 C13 125.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.468      
2 H 0.238      
3 H 0.238      
4 C -0.465      
5 H 0.229      
6 H 0.229      
7 C -0.459      
8 H 0.202      
9 H 0.201      
10 C 0.014      
11 C -0.197      
12 H 0.211      
13 C -0.184      
14 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.708 -0.241 0.000 0.748
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.414 0.055 0.000
y 0.055 -33.663 0.000
z 0.000 0.000 -39.490
Traceless
 xyz
x 2.162 0.055 0.000
y 0.055 3.289 0.000
z 0.000 0.000 -5.451
Polar
3z2-r2-10.902
x2-y2-0.751
xy0.055
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> 153.691
(<r2>)1/2 12.397