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All results from a given calculation for C7H16 (heptane)

using model chemistry: PBEPBE/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-275.988027
Energy at 298.15K-276.005098
Nuclear repulsion energy305.389013
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3050 3032 37.87      
2 A1 2964 2947 27.73      
3 A1 2953 2936 135.38      
4 A1 2942 2925 20.07      
5 A1 2935 2918 0.45      
6 A1 1438 1430 6.09      
7 A1 1427 1419 0.74      
8 A1 1413 1404 0.07      
9 A1 1409 1401 0.02      
10 A1 1349 1341 1.41      
11 A1 1341 1334 0.10      
12 A1 1258 1250 0.02      
13 A1 1124 1118 0.82      
14 A1 1063 1057 0.78      
15 A1 993 987 0.01      
16 A1 895 890 1.59      
17 A1 404 402 0.07      
18 A1 298 296 0.00      
19 A1 94 94 0.01      
20 A2 3041 3023 0.00      
21 A2 2993 2976 0.00      
22 A2 2968 2951 0.00      
23 A2 1420 1412 0.00      
24 A2 1279 1272 0.00      
25 A2 1272 1265 0.00      
26 A2 1188 1181 0.00      
27 A2 988 982 0.00      
28 A2 819 814 0.00      
29 A2 724 719 0.00      
30 A2 246 245 0.00      
31 A2 147 146 0.00      
32 A2 86 86 0.00      
33 B1 3041 3023 93.43      
34 B1 3002 2985 115.36      
35 B1 2981 2964 0.00      
36 B1 2961 2943 0.11      
37 B1 1420 1412 12.67      
38 B1 1286 1278 0.76      
39 B1 1240 1233 0.04      
40 B1 1153 1147 0.15      
41 B1 905 900 1.01      
42 B1 752 748 1.65      
43 B1 722 718 6.23      
44 B1 248 246 0.00      
45 B1 154 153 0.00      
46 B1 68 67 0.00      
47 B2 3050 3032 29.05      
48 B2 2964 2947 47.62      
49 B2 2951 2934 0.03      
50 B2 2936 2919 0.00      
51 B2 1434 1425 0.72      
52 B2 1418 1410 0.80      
53 B2 1408 1400 0.38      
54 B2 1353 1346 0.22      
55 B2 1347 1339 1.42      
56 B2 1309 1301 3.33      
57 B2 1201 1194 6.46      
58 B2 1068 1061 0.56      
59 B2 1049 1043 1.64      
60 B2 1038 1031 0.00      
61 B2 868 863 2.40      
62 B2 470 467 0.07      
63 B2 235 234 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 46273.4 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 46005.0 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/cc-pVDZ
ABC
0.39766 0.02394 0.02328

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.494
C2 0.000 1.285 -0.343
C3 0.000 -1.285 -0.343
C4 0.000 2.570 0.494
C5 0.000 -2.570 0.494
C6 0.000 3.846 -0.352
C7 0.000 -3.846 -0.352
H8 -0.887 0.000 1.167
H9 0.887 0.000 1.167
H10 -0.888 1.286 -1.017
H11 0.888 1.286 -1.017
H12 0.888 -1.286 -1.017
H13 -0.888 -1.286 -1.017
H14 0.887 2.567 1.167
H15 -0.887 2.567 1.167
H16 -0.887 -2.567 1.167
H17 0.887 -2.567 1.167
H18 0.000 4.757 0.278
H19 0.894 3.893 -1.010
H20 -0.894 3.893 -1.010
H21 0.000 -4.757 0.278
H22 -0.894 -3.893 -1.010
H23 0.894 -3.893 -1.010

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
C11.53301.53302.56992.56993.93763.93761.11421.11422.17292.17292.17292.17292.79822.79822.79822.79824.76234.26834.26834.76234.26834.2683
C21.53302.56931.53353.94432.56105.13032.17222.17221.11431.11432.80142.80142.17022.17024.23104.23103.52792.83722.83726.07395.29695.2969
C31.53302.56933.94431.53355.13032.56102.17222.17222.80142.80141.11431.11434.23104.23102.17022.17026.07395.29695.29693.52792.83722.8372
C42.56991.53353.94435.13971.53096.47102.80102.80102.17222.17224.23484.23481.11321.11325.25635.25632.19812.19342.19347.33056.69586.6958
C52.56993.94431.53355.13976.47101.53092.80102.80104.23484.23482.17222.17225.25635.25631.11321.11327.33056.69586.69582.19812.19342.1934
C63.93762.56105.13031.53096.47107.69124.22914.22912.78982.78985.24955.24952.17442.17446.64976.64971.10881.11041.11048.62617.81827.8182
C73.93765.13032.56106.47101.53097.69124.22914.22915.24955.24952.78982.78986.64976.64972.17442.17448.62617.81827.81821.10881.11041.1104
H81.11422.17222.17222.80102.80104.22914.22911.77502.53423.09403.09402.53423.12082.56722.56723.12084.92054.80324.46074.92054.46074.8032
H91.11422.17222.17222.80102.80104.22914.22911.77503.09402.53422.53423.09402.56723.12083.12082.56724.92054.46074.80324.92054.80324.4607
H102.17291.11432.80142.17224.23482.78985.24952.53423.09401.77503.12432.57113.09152.53154.42834.77063.81043.15832.60806.24365.17915.4768
H112.17291.11432.80142.17224.23482.78985.24953.09402.53421.77502.57113.12432.53153.09154.77064.42833.81042.60803.15836.24365.47685.1791
H122.17292.80141.11434.23482.17225.24952.78983.09402.53423.12432.57111.77504.42834.77063.09152.53156.24365.17915.47683.81043.15832.6080
H132.17292.80141.11434.23482.17225.24952.78982.53423.09402.57113.12431.77504.77064.42832.53153.09156.24365.47685.17913.81042.60803.1583
H142.79822.17024.23101.11325.25632.17446.64973.12082.56723.09152.53154.42834.77061.77405.43235.13452.52442.54843.10897.43147.04616.8173
H152.79822.17024.23101.11325.25632.17446.64972.56723.12082.53153.09154.77064.42831.77405.13455.43232.52443.10892.54847.43146.81737.0461
H162.79824.23102.17025.25631.11326.64972.17442.56723.12084.42834.77063.09152.53155.43235.13451.77407.43147.04616.81732.52442.54843.1089
H172.79824.23102.17025.25631.11326.64972.17443.12082.56724.77064.42832.53153.09155.13455.43231.77407.43146.81737.04612.52443.10892.5484
H184.76233.52796.07392.19817.33051.10888.62614.92054.92053.81043.81046.24366.24362.52442.52447.43147.43141.79011.79019.51498.79198.7919
H194.26832.83725.29692.19346.69581.11047.81824.80324.46073.15832.60805.17915.47682.54843.10897.04616.81731.79011.78768.79197.98967.7870
H204.26832.83725.29692.19346.69581.11047.81824.46074.80322.60803.15835.47685.17913.10892.54846.81737.04611.79011.78768.79197.78707.9896
H214.76236.07393.52797.33052.19818.62611.10884.92054.92056.24366.24363.81043.81047.43147.43142.52442.52449.51498.79198.79191.79011.7901
H224.26835.29692.83726.69582.19347.81821.11044.46074.80325.17915.47683.15832.60807.04616.81732.54843.10898.79197.98967.78701.79011.7876
H234.26835.29692.83726.69582.19347.81821.11044.80324.46075.47685.17912.60803.15836.81737.04613.10892.54848.79197.78707.98961.79011.7876

picture of heptane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 113.869 C1 C2 H10 109.307
C1 C2 H11 109.307 C1 C3 C5 113.869
C1 C3 H12 109.307 C1 C3 H13 109.307
C2 C1 C3 113.861 C2 C1 H8 109.262
C2 C1 H9 109.262 C2 C4 C6 113.383
C2 C4 H14 109.127 C2 C4 H15 109.127
C3 C1 H8 109.262 C3 C1 H9 109.262
C3 C5 C7 113.383 C3 C5 H16 109.127
C3 C5 H17 109.127 C4 C2 H10 109.220
C4 C2 H11 109.220 C4 C6 H18 111.768
C4 C6 H19 111.289 C4 C6 H20 111.289
C5 C3 H12 109.220 C5 C3 H13 109.220
C5 C7 H21 111.768 C5 C7 H22 111.289
C5 C7 H23 111.289 C6 C4 H14 109.632
C6 C4 H15 109.632 C7 C5 H16 109.632
C7 C5 H17 109.632 H8 C1 H9 105.603
H10 C2 H11 105.589 H12 C3 H13 105.589
H14 C4 H15 105.646 H16 C5 H17 105.646
H18 C6 H19 107.532 H18 C6 H20 107.532
H19 C6 H20 107.204 H21 C7 H22 107.532
H21 C7 H23 107.532 H22 C7 H23 107.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.035      
2 C -0.038      
3 C -0.038      
4 C -0.069      
5 C -0.069      
6 C -0.045      
7 C -0.045      
8 H 0.015      
9 H 0.015      
10 H 0.015      
11 H 0.015      
12 H 0.015      
13 H 0.015      
14 H 0.019      
15 H 0.019      
16 H 0.019      
17 H 0.019      
18 H 0.025      
19 H 0.030      
20 H 0.030      
21 H 0.025      
22 H 0.030      
23 H 0.030      


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 0.064 0.064
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.853 0.000 0.000
y 0.000 -49.403 0.000
z 0.000 0.000 -48.999
Traceless
 xyz
x 1.348 0.000 0.000
y 0.000 -0.977 0.000
z 0.000 0.000 -0.371
Polar
3z2-r2-0.742
x2-y21.550
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.800 0.000 0.000
y 0.000 15.628 0.000
z 0.000 0.000 11.391


<r2> (average value of r2) Å2
<r2> 480.736
(<r2>)1/2 21.926