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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-271.744397
Energy at 298.15K-271.755139
Nuclear repulsion energy231.018132
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 B3PW91/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3107 2993 37.30      
2 A' 3044 2932 33.88      
3 A' 3031 2919 24.22      
4 A' 3016 2905 29.01      
5 A' 3005 2894 19.65      
6 A' 2865 2759 168.17      
7 A' 1830 1763 161.12      
8 A' 1503 1448 10.24      
9 A' 1490 1435 0.80      
10 A' 1482 1427 0.90      
11 A' 1442 1388 15.34      
12 A' 1413 1361 13.13      
13 A' 1407 1355 3.03      
14 A' 1402 1351 7.19      
15 A' 1363 1313 15.45      
16 A' 1275 1228 6.58      
17 A' 1137 1095 11.59      
18 A' 1081 1041 0.42      
19 A' 1045 1007 1.53      
20 A' 922 888 0.82      
21 A' 896 863 14.79      
22 A' 695 669 13.79      
23 A' 393 379 1.92      
24 A' 288 278 4.26      
25 A' 134 130 5.17      
26 A" 3103 2988 63.87      
27 A" 3085 2971 19.95      
28 A" 3045 2932 6.64      
29 A" 3030 2918 9.05      
30 A" 1492 1437 8.68      
31 A" 1327 1278 0.21      
32 A" 1306 1258 0.05      
33 A" 1231 1185 0.01      
34 A" 1154 1111 0.20      
35 A" 978 942 0.89      
36 A" 854 823 0.17      
37 A" 743 715 2.36      
38 A" 664 639 4.08      
39 A" 234 225 0.00      
40 A" 186 179 1.18      
41 A" 110 106 1.17      
42 A" 62 60 1.87      

Unscaled Zero Point Vibrational Energy (zpe) 30935.2 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 29793.7 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 B3PW91/6-311G**
ABC
0.34920 0.04868 0.04411

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.831 -2.058 0.000
C2 -0.351 -1.128 0.000
C3 0.000 0.352 0.000
C4 -1.228 1.260 0.000
C5 -0.872 2.743 0.000
O6 1.983 -1.709 0.000
H7 0.570 -3.142 0.000
H8 -0.970 -1.396 0.870
H9 -0.970 -1.396 -0.870
H10 0.626 0.571 -0.872
H11 0.626 0.571 0.872
H12 -1.849 1.032 0.876
H13 -1.849 1.032 -0.876
H14 -1.768 3.370 0.000
H15 -0.281 3.007 -0.883
H16 -0.281 3.007 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.50452.54963.90495.09401.20351.11472.10682.10682.77782.77784.18334.18336.01835.26055.2605
C21.50451.52142.54363.90572.40602.21461.10051.10052.14562.14562.77072.77074.71594.22914.2291
C32.54961.52141.52712.54462.86083.54022.18082.18081.09571.09572.15602.15603.49752.81202.8120
C43.90492.54361.52711.52544.37384.75472.80682.80682.16162.16161.09761.09762.17842.17512.1751
C55.09403.90572.54461.52545.28916.05874.23094.23092.77842.77842.15612.15611.09361.09471.0947
O61.20352.40602.86084.37385.28912.01193.09463.09462.79382.79384.79264.79266.31445.30605.3060
H71.11472.21463.54024.75476.05872.01192.48492.48493.81453.81454.90324.90326.91896.27016.2701
H82.10681.10052.18082.80684.23093.09462.48491.73913.07472.53372.58283.11754.91064.78954.4576
H92.10681.10052.18082.80684.23093.09462.48491.73912.53373.07473.11752.58284.91064.45764.7895
H102.77782.14561.09572.16162.77842.79383.81453.07472.53371.74463.06492.51723.78472.59933.1363
H112.77782.14561.09572.16162.77842.79383.81452.53373.07471.74462.51723.06493.78473.13632.5993
H124.18332.77072.15601.09762.15614.79264.90322.58283.11753.06492.51721.75262.49823.07472.5219
H134.18332.77072.15601.09762.15614.79264.90323.11752.58282.51723.06491.75262.49822.52193.0747
H146.01834.71593.49752.17841.09366.31446.91894.91064.91063.78473.78472.49822.49821.76671.7667
H155.26054.22912.81202.17511.09475.30606.27014.78954.45762.59933.13633.07472.52191.76671.7653
H165.26054.22912.81202.17511.09475.30606.27014.45764.78953.13632.59932.52193.07471.76671.7653

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.823 C1 C2 H8 106.927
C1 C2 H9 106.927 C2 C1 O6 124.990
C2 C1 H7 114.637 C2 C3 C4 113.102
C2 C3 H10 109.050 C2 C3 H11 109.050
C3 C2 H8 111.548 C3 C2 H9 111.548
C3 C4 C5 112.944 C3 C4 H12 109.363
C3 C4 H13 109.363 C4 C3 H10 109.917
C4 C3 H11 109.917 C4 C5 H14 111.493
C4 C5 H15 111.166 C4 C5 H16 111.166
C5 C4 H12 109.489 C5 C4 H13 109.489
O6 C1 H7 120.373 H8 C2 H9 104.399
H10 C3 H11 105.520 H12 C4 H13 105.952
H14 C5 H15 107.676 H14 C5 H16 107.676
H15 C5 H16 107.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.179      
2 C -0.307      
3 C -0.239      
4 C -0.266      
5 C -0.327      
6 O -0.287      
7 H 0.082      
8 H 0.145      
9 H 0.145      
10 H 0.136      
11 H 0.136      
12 H 0.120      
13 H 0.120      
14 H 0.122      
15 H 0.120      
16 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.602 -0.092 0.000 2.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.841 3.973 0.000
y 3.973 -36.805 0.000
z 0.000 0.000 -37.205
Traceless
 xyz
x -7.836 3.973 0.000
y 3.973 4.218 0.000
z 0.000 0.000 3.618
Polar
3z2-r27.236
x2-y2-8.036
xy3.973
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.143 -0.442 0.000
y -0.442 10.296 0.000
z 0.000 0.000 7.146


<r2> (average value of r2) Å2
<r2> 251.778
(<r2>)1/2 15.868