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All results from a given calculation for C6H10 (Cyclopentene, 3-methyl-)

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-231.722797
Energy at 298.15K-231.734240
Nuclear repulsion energy234.794547
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 HF/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 3391 3061 21.98      
2 A 3359 3032 6.03      
3 A 3279 2959 49.64      
4 A 3255 2938 29.36      
5 A 3245 2929 58.11      
6 A 3243 2928 12.34      
7 A 3224 2910 15.44      
8 A 3201 2889 38.60      
9 A 3193 2882 21.00      
10 A 3188 2877 29.61      
11 A 1827 1649 0.26      
12 A 1671 1509 5.32      
13 A 1669 1506 4.11      
14 A 1662 1500 2.41      
15 A 1644 1484 1.70      
16 A 1571 1418 4.67      
17 A 1511 1363 6.64      
18 A 1473 1329 2.30      
19 A 1464 1321 0.86      
20 A 1448 1307 5.04      
21 A 1443 1302 0.85      
22 A 1358 1226 1.34      
23 A 1333 1203 0.51      
24 A 1262 1139 0.44      
25 A 1235 1115 2.97      
26 A 1217 1098 10.50      
27 A 1133 1022 0.13      
28 A 1128 1018 1.59      
29 A 1077 972 0.75      
30 A 1040 938 2.53      
31 A 993 897 0.89      
32 A 936 844 3.43      
33 A 911 823 3.74      
34 A 877 792 4.53      
35 A 836 754 44.88      
36 A 827 746 1.38      
37 A 649 586 6.46      
38 A 536 484 2.41      
39 A 370 334 0.14      
40 A 304 274 0.15      
41 A 260 235 0.06      
42 A 96 86 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 34166.9 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 30839.1 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 HF/3-21G*
ABC
0.21904 0.10667 0.07937

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.299 2.199 0.148
C2 0.100 1.204 0.121
H3 2.122 1.593 -0.405
C4 1.348 0.893 -0.163
H5 2.187 -0.833 0.819
H6 2.147 -0.985 -0.928
C7 1.606 -0.604 -0.070
H8 0.104 -2.031 0.704
H9 -0.141 -1.533 -0.963
C10 0.165 -1.196 0.020
H11 -0.933 -0.046 1.524
C12 -0.755 -0.010 0.453
H13 -2.716 0.835 0.029
H14 -2.661 -0.918 -0.067
H15 -1.950 0.056 -1.350
C16 -2.108 -0.010 -0.279

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 C12 H13 H14 H15 C16
H11.07202.55652.12513.97824.15693.39654.28573.89723.42892.70822.27622.77783.91703.09212.8862
C21.07202.12511.31732.99913.17572.36163.28792.95442.40342.14431.52192.84163.48792.77232.5511
H32.55652.12511.07132.71812.63072.28124.29383.89903.43303.96703.40324.91635.41284.45384.5248
C42.12511.31731.07132.15582.17961.52193.29392.95662.40722.98802.37004.06894.40033.60353.5734
H53.97822.99912.71812.15581.75401.08582.40563.01362.20353.29383.07675.23854.92884.75464.5086
H64.15693.17572.63072.17961.75401.08342.81632.35222.20654.04713.35825.27964.88484.24784.4128
C73.39652.36162.28121.52191.08581.08342.21232.17111.56053.04962.49054.55674.27923.83703.7673
H84.28573.28794.29383.29392.40562.81632.21231.75721.08162.38532.21044.07673.07853.57673.1536
H93.89722.95443.89902.95663.01362.35222.17111.75721.08353.00452.16843.63652.74492.43882.5805
C103.42892.40343.43302.40722.20352.20651.56051.08161.08352.18901.56223.52492.84142.81392.5815
H112.70822.14433.96702.98803.29384.04713.04962.38533.00452.18901.08662.48782.50603.05062.1527
C122.27621.52193.40322.37003.07673.35822.49052.21042.16841.56221.08662.17672.17442.16381.5381
H132.77782.84164.91634.06895.23855.27964.55674.07673.63653.52492.48782.17671.75641.75961.0852
H143.91703.48795.41284.40034.92884.88484.27923.07852.74492.84142.50602.17441.75641.76121.0851
H153.09212.77234.45383.60354.75464.24783.83703.57672.43882.81393.05062.16381.75961.76121.0843
C162.88622.55114.52483.57344.50864.41283.76733.15362.58052.58152.15271.53811.08521.08511.0843

picture of Cyclopentene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 125.291 H1 C2 C12 121.718
C2 C4 H3 125.356 C2 C4 C7 112.365
C2 C12 C10 102.381 C2 C12 H11 109.444
C2 C12 C16 112.955 H3 C4 C7 122.253
C4 C2 C12 112.976 C4 C7 H5 110.401
C4 C7 H6 112.479 C4 C7 C10 102.689
H5 C7 H6 107.915 H5 C7 C10 111.487
H6 C7 C10 111.875 C7 C10 H8 112.456
C7 C10 H9 109.065 C7 C10 C12 105.792
H8 C10 H9 108.512 H8 C10 C12 112.176
H9 C10 C12 108.739 C10 C12 H11 110.163
C10 C12 C16 112.744 H11 C12 C16 108.992
C12 C16 H13 110.968 C12 C16 H14 110.790
C12 C16 H15 109.998 H13 C16 H14 108.054
H13 C16 H15 108.401 H14 C16 H15 108.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.222 0.161    
2 C -0.183 -0.358    
3 H 0.222 0.144    
4 C -0.224 -0.226    
5 H 0.219 -0.004    
6 H 0.214 -0.001    
7 C -0.447 0.124    
8 H 0.210 0.014    
9 H 0.217 0.036    
10 C -0.391 -0.148    
11 H 0.226 -0.070    
12 C -0.325 0.473    
13 H 0.196 0.096    
14 H 0.199 0.082    
15 H 0.202 0.100    
16 C -0.557 -0.422    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.009 -0.111 0.066 0.130
CHELPG -0.002 -0.066 0.042 0.078
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.062 -0.191 -0.756
y -0.191 -37.971 -0.189
z -0.756 -0.189 -39.961
Traceless
 xyz
x 0.904 -0.191 -0.756
y -0.191 1.040 -0.189
z -0.756 -0.189 -1.944
Polar
3z2-r2-3.889
x2-y2-0.091
xy-0.191
xz-0.756
yz-0.189


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.159 -0.426 -0.640
y -0.426 7.966 -0.067
z -0.640 -0.067 6.210


<r2> (average value of r2) Å2
<r2> 164.566
(<r2>)1/2 12.828