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All results from a given calculation for C7H16 (heptane)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-276.035735
Energy at 298.15K-276.052768
Nuclear repulsion energy306.012503
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 PBEPBE/6-311G*
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 3035 3003 56.27      
2 A1 2962 2932 48.24      
3 A1 2953 2922 147.97      
4 A1 2941 2910 9.41      
5 A1 2933 2903 0.49      
6 A1 1481 1466 15.67      
7 A1 1470 1455 0.05      
8 A1 1454 1439 0.00      
9 A1 1448 1433 0.00      
10 A1 1375 1361 4.24      
11 A1 1358 1344 0.30      
12 A1 1279 1265 0.01      
13 A1 1130 1118 0.91      
14 A1 1056 1045 0.89      
15 A1 987 976 0.00      
16 A1 899 889 1.64      
17 A1 405 401 0.04      
18 A1 296 293 0.00      
19 A1 95 94 0.00      
20 A2 3028 2997 0.00      
21 A2 2985 2954 0.00      
22 A2 2959 2928 0.00      
23 A2 1469 1454 0.00      
24 A2 1308 1294 0.00      
25 A2 1298 1285 0.00      
26 A2 1209 1197 0.00      
27 A2 1007 997 0.00      
28 A2 828 819 0.00      
29 A2 719 711 0.00      
30 A2 236 234 0.00      
31 A2 144 142 0.00      
32 A2 82 82 0.00      
33 B1 3029 2997 145.27      
34 B1 2996 2965 118.10      
35 B1 2972 2941 0.07      
36 B1 2952 2921 0.11      
37 B1 1469 1454 19.00      
38 B1 1314 1301 0.97      
39 B1 1264 1251 0.12      
40 B1 1170 1157 0.09      
41 B1 919 910 0.91      
42 B1 754 746 1.63      
43 B1 714 706 6.37      
44 B1 239 236 0.00      
45 B1 147 146 0.00      
46 B1 67 66 0.00      
47 B2 3034 3003 37.67      
48 B2 2962 2931 54.62      
49 B2 2949 2919 0.04      
50 B2 2933 2903 0.00      
51 B2 1478 1462 2.10      
52 B2 1461 1446 1.38      
53 B2 1448 1433 0.13      
54 B2 1377 1362 3.27      
55 B2 1361 1347 1.34      
56 B2 1328 1314 1.25      
57 B2 1222 1210 0.70      
58 B2 1066 1055 4.24      
59 B2 1051 1041 1.96      
60 B2 1031 1020 0.09      
61 B2 867 858 2.76      
62 B2 470 465 0.07      
63 B2 236 234 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 46554.8 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 46070.6 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 PBEPBE/6-311G*
ABC
0.39998 0.02399 0.02332

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.495
C2 0.000 1.283 -0.343
C3 0.000 -1.283 -0.343
C4 0.000 2.568 0.494
C5 0.000 -2.568 0.494
C6 0.000 3.842 -0.353
C7 0.000 -3.842 -0.353
H8 -0.882 0.000 1.164
H9 0.882 0.000 1.164
H10 -0.882 1.284 -1.012
H11 0.882 1.284 -1.012
H12 0.882 -1.284 -1.012
H13 -0.882 -1.284 -1.012
H14 0.881 2.567 1.162
H15 -0.881 2.567 1.162
H16 -0.881 -2.567 1.162
H17 0.881 -2.567 1.162
H18 0.000 4.748 0.273
H19 0.888 3.891 -1.005
H20 -0.888 3.891 -1.005
H21 0.000 -4.748 0.273
H22 -0.888 -3.891 -1.005
H23 0.888 -3.891 -1.005

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
C11.53281.53282.56792.56793.93513.93511.10661.10662.16732.16732.16732.16732.79452.79452.79452.79454.75374.26364.26364.75374.26364.2636
C21.53282.56651.53323.94102.55935.12572.16672.16671.10671.10672.79562.79562.16512.16514.22654.22653.51952.83312.83316.06305.29135.2913
C31.53282.56653.94101.53325.12572.55932.16672.16672.79562.79561.10671.10674.22654.22652.16512.16516.06305.29135.29133.51952.83312.8331
C42.56791.53323.94105.13581.53066.46622.79652.79652.16632.16634.22874.22871.10551.10555.25255.25252.19182.18772.18777.31976.68966.6896
C52.56793.94101.53325.13586.46621.53062.79652.79654.22874.22872.16632.16635.25255.25251.10551.10557.31976.68966.68962.19182.18772.1877
C63.93512.55935.12571.53066.46627.68504.22434.22432.78512.78515.24335.24332.16772.16776.64476.64471.10131.10251.10258.61377.81137.8113
C73.93515.12572.55936.46621.53067.68504.22434.22435.24335.24332.78512.78516.64476.64472.16772.16778.61377.81137.81131.10131.10251.1025
H81.10662.16672.16672.79652.79654.22434.22431.76372.52623.08093.08092.52623.11402.56692.56693.11404.91124.79324.45464.91124.45464.7932
H91.10662.16672.16672.79652.79654.22434.22431.76373.08092.52622.52623.08092.56693.11403.11402.56694.91124.45464.79324.91124.79324.4546
H102.16731.10672.79562.16634.22872.78515.24332.52623.08091.76343.11522.56803.07842.52374.42194.76033.79863.15062.60686.23045.17485.4690
H112.16731.10672.79562.16634.22872.78515.24333.08092.52621.76342.56803.11522.52373.07844.76034.42193.79862.60683.15066.23045.46905.1748
H122.16732.79561.10674.22872.16635.24332.78513.08092.52623.11522.56801.76344.42194.76033.07842.52376.23045.17485.46903.79863.15062.6068
H132.16732.79561.10674.22872.16635.24332.78512.52623.08092.56803.11521.76344.76034.42192.52373.07846.23045.46905.17483.79862.60683.1506
H142.79452.16514.22651.10555.25252.16776.64473.11402.56693.07842.52374.42194.76031.76235.42795.13382.51512.53933.09477.42177.03756.8115
H152.79452.16514.22651.10555.25252.16776.64472.56693.11402.52373.07844.76034.42191.76235.13385.42792.51513.09472.53937.42176.81157.0375
H162.79454.22652.16515.25251.10556.64472.16772.56693.11404.42194.76033.07842.52375.42795.13381.76237.42177.03756.81152.51512.53933.0947
H172.79454.22652.16515.25251.10556.64472.16773.11402.56694.76034.42192.52373.07845.13385.42791.76237.42176.81157.03752.51513.09472.5393
H184.75373.51956.06302.19187.31971.10138.61374.91124.91123.79863.79866.23046.23042.51512.51517.42177.42171.77691.77699.49698.77838.7783
H194.26362.83315.29132.18776.68961.10257.81134.79324.45463.15062.60685.17485.46902.53933.09477.03756.81151.77691.77578.77837.98167.7815
H204.26362.83315.29132.18776.68961.10257.81134.45464.79322.60683.15065.46905.17483.09472.53936.81157.03751.77691.77578.77837.78157.9816
H214.75376.06303.51957.31972.19188.61371.10134.91124.91126.23046.23043.79863.79867.42177.42172.51512.51519.49698.77838.77831.77691.7769
H224.26365.29132.83316.68962.18777.81131.10254.45464.79325.17485.46903.15062.60687.03756.81152.53933.09478.77837.98167.78151.77691.7757
H234.26365.29132.83316.68962.18777.81131.10254.79324.45465.46905.17482.60683.15066.81157.03753.09472.53938.77837.78157.98161.77691.7757

picture of heptane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 113.768 C1 C2 H10 109.335
C1 C2 H11 109.335 C1 C3 C5 113.768
C1 C3 H12 109.335 C1 C3 H13 109.335
C2 C1 C3 113.693 C2 C1 H8 109.292
C2 C1 H9 109.292 C2 C4 C6 113.304
C2 C4 H14 109.201 C2 C4 H15 109.201
C3 C1 H8 109.292 C3 C1 H9 109.292
C3 C5 C7 113.304 C3 C5 H16 109.201
C3 C5 H17 109.201 C4 C2 H10 109.225
C4 C2 H11 109.225 C4 C6 H18 111.730
C4 C6 H19 111.334 C4 C6 H20 111.334
C5 C3 H12 109.225 C5 C3 H13 109.225
C5 C7 H21 111.730 C5 C7 H22 111.334
C5 C7 H23 111.334 C6 C4 H14 109.579
C6 C4 H15 109.579 C7 C5 H16 109.579
C7 C5 H17 109.579 H8 C1 H9 105.670
H10 C2 H11 105.634 H12 C3 H13 105.634
H14 C4 H15 105.695 H16 C5 H17 105.695
H18 C6 H19 107.468 H18 C6 H20 107.468
H19 C6 H20 107.279 H21 C7 H22 107.468
H21 C7 H23 107.468 H22 C7 H23 107.279
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.408      
2 C -0.406      
3 C -0.406      
4 C -0.417      
5 C -0.417      
6 C -0.637      
7 C -0.637      
8 H 0.204      
9 H 0.204      
10 H 0.204      
11 H 0.204      
12 H 0.204      
13 H 0.204      
14 H 0.207      
15 H 0.207      
16 H 0.207      
17 H 0.207      
18 H 0.215      
19 H 0.211      
20 H 0.211      
21 H 0.215      
22 H 0.211      
23 H 0.211      


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 0.081 0.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.131 0.000 0.000
y 0.000 -50.299 0.000
z 0.000 0.000 -49.722
Traceless
 xyz
x 1.880 0.000 0.000
y 0.000 -1.372 0.000
z 0.000 0.000 -0.508
Polar
3z2-r2-1.015
x2-y22.168
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.909 0.000 0.000
y 0.000 15.616 0.000
z 0.000 0.000 11.574


<r2> (average value of r2) Å2
<r2> 480.135
(<r2>)1/2 21.912