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All results from a given calculation for C7H16 (heptane)

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-49.185058
Energy at 298.15K-49.202054
Nuclear repulsion energy175.509094
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3101 2994 90.62      
2 A1 3033 2929 21.98      
3 A1 3030 2926 194.12      
4 A1 3019 2915 12.86      
5 A1 3014 2911 0.01      
6 A1 1511 1459 14.13      
7 A1 1503 1451 0.08      
8 A1 1488 1437 0.09      
9 A1 1484 1433 0.04      
10 A1 1412 1363 4.05      
11 A1 1393 1345 0.02      
12 A1 1298 1254 0.03      
13 A1 1147 1108 1.38      
14 A1 1060 1024 0.64      
15 A1 994 960 0.03      
16 A1 906 875 1.89      
17 A1 406 392 0.09      
18 A1 295 285 0.00      
19 A1 95 92 0.01      
20 A2 3103 2997 0.00      
21 A2 3069 2964 0.00      
22 A2 3042 2937 0.00      
23 A2 1498 1447 0.00      
24 A2 1326 1281 0.00      
25 A2 1317 1271 0.00      
26 A2 1225 1183 0.00      
27 A2 1014 979 0.00      
28 A2 823 795 0.00      
29 A2 715 691 0.00      
30 A2 234 226 0.00      
31 A2 141 136 0.00      
32 A2 81 78 0.00      
33 B1 3105 2998 291.54      
34 B1 3082 2977 96.05      
35 B1 3055 2950 0.21      
36 B1 3030 2926 0.09      
37 B1 1498 1447 16.13      
38 B1 1331 1286 0.91      
39 B1 1280 1237 0.06      
40 B1 1158 1119 0.36      
41 B1 917 885 1.11      
42 B1 751 725 2.31      
43 B1 708 684 10.11      
44 B1 237 229 0.01      
45 B1 145 140 0.00      
46 B1 67 65 0.01      
47 B2 3100 2994 45.37      
48 B2 3033 2929 64.86      
49 B2 3026 2923 1.36      
50 B2 3013 2910 0.21      
51 B2 1509 1457 1.14      
52 B2 1494 1443 0.51      
53 B2 1483 1432 0.26      
54 B2 1411 1363 1.46      
55 B2 1409 1361 0.44      
56 B2 1353 1307 2.48      
57 B2 1238 1195 3.98      
58 B2 1077 1040 4.71      
59 B2 1059 1022 0.83      
60 B2 1033 998 0.08      
61 B2 874 844 3.50      
62 B2 470 453 0.13      
63 B2 237 229 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 47479.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 45851.1 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 B3LYP/CEP-31G*
ABC
0.39175 0.02367 0.02299

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.512
C2 0.000 1.292 -0.341
C3 0.000 -1.292 -0.341
C4 0.000 2.587 0.508
C5 0.000 -2.587 0.508
C6 0.000 3.869 -0.360
C7 0.000 -3.869 -0.360
H8 -0.886 0.000 1.176
H9 0.886 0.000 1.176
H10 -0.886 1.292 -1.006
H11 0.886 1.292 -1.006
H12 0.886 -1.292 -1.006
H13 -0.886 -1.292 -1.006
H14 0.886 2.589 1.172
H15 -0.886 2.589 1.172
H16 -0.886 -2.589 1.172
H17 0.886 -2.589 1.172
H18 0.000 4.781 0.263
H19 0.892 3.905 -1.012
H20 -0.892 3.905 -1.012
H21 0.000 -4.781 0.263
H22 -0.892 -3.905 -1.012
H23 0.892 -3.905 -1.012

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18 H19 H20 H21 H22 H23
C11.54841.54842.58672.58673.96603.96601.10731.10732.18162.18162.18162.18162.81472.81472.81472.81474.78734.28604.28604.78734.28604.2860
C21.54842.58381.54873.97062.57705.16082.18112.18111.10741.10742.81142.81142.18072.18074.25864.25863.54092.84152.84156.10275.31555.3155
C31.54842.58383.97061.54875.16082.57702.18112.18112.81142.81141.10741.10744.25864.25862.18072.18076.10275.31555.31553.54092.84152.8415
C42.58671.54873.97065.17341.54866.51372.81472.81472.18032.18034.25724.25721.10651.10655.29285.29282.20782.20132.20137.37166.72696.7269
C52.58673.97061.54875.17346.51371.54862.81472.81474.25724.25722.18032.18035.29285.29281.10651.10657.37166.72696.72692.20782.20132.2013
C63.96602.57705.16081.54866.51377.73784.25604.25602.80022.80025.27625.27622.18352.18356.69596.69591.10441.10541.10548.67217.85217.8521
C73.96605.16082.57706.51371.54867.73784.25604.25605.27625.27622.80022.80026.69596.69592.18352.18358.67217.85217.85211.10441.10541.1054
H81.10732.18112.18112.81472.81474.25604.25601.77212.53633.09383.09382.53633.13732.58912.58913.13734.94734.81674.47664.94734.47664.8167
H91.10732.18112.18112.81472.81474.25604.25601.77213.09382.53632.53633.09382.58913.13733.13732.58914.94734.47664.81674.94734.81674.4766
H102.18161.10742.81142.18034.25722.80025.27622.53633.09381.77143.13322.58443.09222.53454.45044.79003.81653.16022.61306.26715.19745.4929
H112.18161.10742.81142.18034.25722.80025.27623.09382.53631.77142.58443.13322.53453.09224.79004.45043.81652.61303.16026.26715.49295.1974
H122.18162.81141.10744.25722.18035.27622.80023.09382.53633.13322.58441.77144.45044.79003.09222.53456.26715.19745.49293.81653.16022.6130
H132.18162.81141.10744.25722.18035.27622.80022.53633.09382.58443.13321.77144.79004.45042.53453.09226.26715.49295.19743.81652.61303.1602
H142.81472.18074.25861.10655.29282.18356.69593.13732.58913.09222.53454.45044.79001.77165.47295.17822.53252.54963.10807.47847.07846.8516
H152.81472.18074.25861.10655.29282.18356.69592.58913.13732.53453.09224.79004.45041.77165.17825.47292.53253.10802.54967.47846.85167.0784
H162.81474.25862.18075.29281.10656.69592.18352.58913.13734.45044.79003.09222.53455.47295.17821.77167.47847.07846.85162.53252.54963.1080
H172.81474.25862.18075.29281.10656.69592.18353.13732.58914.79004.45042.53453.09225.17825.47291.77167.47846.85167.07842.53253.10802.5496
H184.78733.54096.10272.20787.37161.10448.67214.94734.94733.81653.81656.26716.26712.53252.53257.47847.47841.78551.78559.56178.82438.8243
H194.28602.84155.31552.20136.72691.10547.85214.81674.47663.16022.61305.19745.49292.54963.10807.07846.85161.78551.78338.82438.01137.8103
H204.28602.84155.31552.20136.72691.10547.85214.47664.81672.61303.16025.49295.19743.10802.54966.85167.07841.78551.78338.82437.81038.0113
H214.78736.10273.54097.37162.20788.67211.10444.94734.94736.26716.26713.81653.81657.47847.47842.53252.53259.56178.82438.82431.78551.7855
H224.28605.31552.84156.72692.20137.85211.10544.47664.81675.19745.49293.16022.61307.07846.85162.54963.10808.82438.01137.81031.78551.7833
H234.28605.31552.84156.72692.20137.85211.10544.81674.47665.49295.19742.61303.16026.85167.07843.10802.54968.82437.81038.01131.78551.7833

picture of heptane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 113.275 C1 C2 H10 109.337
C1 C2 H11 109.337 C1 C3 C5 113.275
C1 C3 H12 109.337 C1 C3 H13 109.337
C2 C1 C3 113.096 C2 C1 H8 109.305
C2 C1 H9 109.305 C2 C4 C6 112.619
C2 C4 H14 109.305 C2 C4 H15 109.305
C3 C1 H8 109.305 C3 C1 H9 109.305
C3 C5 C7 112.619 C3 C5 H16 109.305
C3 C5 H17 109.305 C4 C2 H10 109.216
C4 C2 H11 109.216 C4 C6 H18 111.555
C4 C6 H19 110.982 C4 C6 H20 110.982
C5 C3 H12 109.216 C5 C3 H13 109.216
C5 C7 H21 111.555 C5 C7 H22 110.982
C5 C7 H23 110.982 C6 C4 H14 109.527
C6 C4 H15 109.527 C7 C5 H16 109.527
C7 C5 H17 109.527 H8 C1 H9 106.297
H10 C2 H11 106.217 H12 C3 H13 106.217
H14 C4 H15 106.364 H16 C5 H17 106.364
H18 C6 H19 107.803 H18 C6 H20 107.803
H19 C6 H20 107.543 H21 C7 H22 107.803
H21 C7 H23 107.803 H22 C7 H23 107.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.258      
2 C -0.289      
3 C -0.289      
4 C -0.158      
5 C -0.158      
6 C -0.413      
7 C -0.413      
8 H 0.108      
9 H 0.108      
10 H 0.111      
11 H 0.111      
12 H 0.111      
13 H 0.111      
14 H 0.113      
15 H 0.113      
16 H 0.113      
17 H 0.113      
18 H 0.173      
19 H 0.130      
20 H 0.130      
21 H 0.173      
22 H 0.130      
23 H 0.130      


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 0.073 0.073
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.058 0.000 0.000
y 0.000 -49.697 0.000
z 0.000 0.000 -47.969
Traceless
 xyz
x 2.775 0.000 0.000
y 0.000 -2.683 0.000
z 0.000 0.000 -0.092
Polar
3z2-r2-0.183
x2-y23.638
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.474 0.000 0.000
y 0.000 14.677 0.000
z 0.000 0.000 10.117


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000