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 (3-Methylenecyclopentene)

using model chemistry: BLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-233.378063
Energy at 298.15K-233.386273
Nuclear repulsion energy215.632157
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/cc-pVTZ
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 3137 3128 15.99      
2 A 3123 3114 19.75      
3 A 3101 3092 4.50      
4 A 3062 3053 8.85      
5 A 3004 2995 21.79      
6 A 2978 2969 25.62      
7 A 2951 2942 16.06      
8 A 2941 2932 45.16      
9 A 1628 1623 28.77      
10 A 1580 1575 0.89      
11 A 1460 1455 4.91      
12 A 1440 1435 1.49      
13 A 1422 1418 0.43      
14 A 1335 1331 0.65      
15 A 1284 1280 2.05      
16 A 1247 1244 0.49      
17 A 1214 1210 2.08      
18 A 1211 1207 0.04      
19 A 1135 1132 1.38      
20 A 1097 1093 1.70      
21 A 1001 998 2.67      
22 A 973 970 2.92      
23 A 943 940 2.19      
24 A 931 928 3.26      
25 A 881 878 8.46      
26 A 849 847 33.20      
27 A 823 820 0.38      
28 A 821 819 14.43      
29 A 768 766 7.28      
30 A 760 758 0.81      
31 A 651 649 10.73      
32 A 613 612 0.67      
33 A 505 503 13.56      
34 A 357 356 0.67      
35 A 290 289 1.10      
36 A 67 67 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25790.5 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 25713.2 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 BLYP/cc-pVTZ
ABC
0.24232 0.11408 0.07985

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.103 -1.201 -0.000
H2 0.072 -1.832 0.879
H3 0.072 -1.830 -0.881
C4 -1.547 -0.602 0.000
H5 -2.129 -0.919 0.879
H6 -2.130 -0.920 -0.877
C7 2.186 -0.020 0.000
H8 2.772 0.897 0.001
H9 2.740 -0.956 0.000
C10 0.840 0.011 -0.000
C11 -1.316 0.894 -0.000
H12 -2.131 1.615 -0.000
C13 -0.005 1.206 -0.000
H14 0.401 2.215 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.09671.09661.56392.22642.22662.57563.55912.85341.53572.42143.47022.40943.4535
H21.09671.76092.21552.38262.96122.91943.93782.94212.18123.18334.18413.16374.1546
H31.09661.76092.21542.96172.38282.91983.93812.94312.18113.18234.18293.16294.1536
C41.56392.21552.21541.10021.10023.77844.57204.30202.46531.51442.29242.37713.4258
H52.22642.38262.96171.10021.75634.49385.29944.94743.23312.17322.68233.13084.1230
H62.22662.96122.38281.10021.75634.49525.30104.94873.23412.17342.68183.13154.1238
C72.57562.91942.91983.77844.49384.49521.08831.08821.34563.61904.61562.51012.8598
H83.55913.93783.93814.57205.29945.30101.08831.85372.12514.08764.95472.79352.7120
H92.85342.94212.94314.30204.94744.94871.08821.85372.13144.45815.50763.49413.9404
C101.53572.18122.18112.46533.23313.23411.34562.12512.13142.33043.37661.46412.2479
C112.42143.18333.18231.51442.17322.17343.61904.08764.45812.33041.08761.34782.1665
H123.47024.18414.18292.29242.68232.68184.61564.95475.50763.37661.08762.16502.6025
C132.40943.16373.16292.37713.13083.13152.51012.79353.49411.46411.34782.16501.0877
H143.45354.15464.15363.42584.12304.12382.85982.71203.94042.24792.16652.60251.0877

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 112.209 C1 C4 H6 112.224
C1 C4 C11 103.725 C1 C10 C7 126.609
C1 C10 C13 106.846 H2 C1 H3 106.811
H2 C1 C4 111.556 H2 C1 C10 110.814
H3 C1 C4 111.550 H3 C1 C10 110.806
C4 C1 C10 105.378 C4 C11 H12 122.678
C4 C11 C13 112.170 H5 C4 H6 105.912
H5 C4 C11 111.457 H6 C4 C11 111.468
C7 C10 C13 126.545 H8 C7 H9 116.800
H8 C7 C10 121.287 H9 C7 C10 121.913
C10 C13 C11 111.881 C10 C13 H14 122.823
C11 C13 H14 125.296 H12 C11 C13 125.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.145      
2 H 0.085      
3 H 0.085      
4 C -0.132      
5 H 0.081      
6 H 0.081      
7 C -0.306      
8 H 0.087      
9 H 0.087      
10 C 0.127      
11 C -0.110      
12 H 0.096      
13 C -0.123      
14 H 0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.802 -0.227 -0.000 0.833
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.530 0.061 0.001
y 0.061 -35.382 -0.000
z 0.001 -0.000 -39.517
Traceless
 xyz
x 0.919 0.061 0.001
y 0.061 2.642 -0.000
z 0.001 -0.000 -3.561
Polar
3z2-r2-7.122
x2-y2-1.149
xy0.061
xz0.001
yz-0.000


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> 154.981
(<r2>)1/2 12.449