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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-271.700644
Energy at 298.15K-271.711334
Nuclear repulsion energy231.868981
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 B1B95/6-311G**
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' 3122 2997 37.70      
2 A' 3055 2933 34.54      
3 A' 3043 2922 25.05      
4 A' 3028 2908 27.52      
5 A' 3019 2898 20.50      
6 A' 2880 2765 167.70      
7 A' 1842 1769 159.67      
8 A' 1504 1444 9.17      
9 A' 1489 1430 0.94      
10 A' 1480 1421 1.10      
11 A' 1442 1384 15.49      
12 A' 1412 1356 13.31      
13 A' 1405 1349 2.55      
14 A' 1399 1343 7.53      
15 A' 1358 1304 15.42      
16 A' 1265 1215 5.87      
17 A' 1138 1093 10.80      
18 A' 1084 1041 0.41      
19 A' 1048 1006 1.16      
20 A' 924 887 1.51      
21 A' 897 862 13.64      
22 A' 694 666 14.01      
23 A' 388 373 1.59      
24 A' 281 270 4.56      
25 A' 128 123 5.17      
26 A" 3116 2992 63.49      
27 A" 3097 2974 23.50      
28 A" 3059 2937 5.02      
29 A" 3046 2925 9.92      
30 A" 1492 1432 8.52      
31 A" 1321 1268 0.27      
32 A" 1301 1249 0.07      
33 A" 1227 1178 0.01      
34 A" 1153 1107 0.19      
35 A" 972 933 0.79      
36 A" 848 814 0.16      
37 A" 738 708 2.11      
38 A" 663 636 3.78      
39 A" 229 220 0.00      
40 A" 188 181 1.21      
41 A" 106 102 1.24      
42 A" 56 53 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 30968.5 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 29732.9 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 B1B95/6-311G**
ABC
0.34728 0.04936 0.04463

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.812 -2.056 0.000
C2 -0.368 -1.128 0.000
C3 0.000 0.344 0.000
C4 -1.214 1.263 0.000
C5 -0.836 2.736 0.000
O6 1.959 -1.699 0.000
H7 0.559 -3.139 0.000
H8 -0.986 -1.390 0.869
H9 -0.986 -1.390 -0.869
H10 0.627 0.554 -0.871
H11 0.627 0.554 0.871
H12 -1.835 1.043 0.875
H13 -1.835 1.043 -0.875
H14 -1.719 3.377 0.000
H15 -0.241 2.989 -0.881
H16 -0.241 2.989 0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.50122.53343.88805.06741.20151.11202.10512.10512.75722.75724.16844.16845.99375.22825.2282
C21.50121.51722.53573.89232.39642.21421.09801.09802.13942.13942.76252.76254.70334.21194.2119
C32.53341.51721.52262.53412.83053.52722.17562.17561.09351.09352.15002.15003.48662.79822.7982
C43.88802.53571.52261.52144.34074.74502.80032.80032.15682.15681.09521.09522.17412.16862.1686
C55.06743.89232.53411.52145.24266.03824.21914.21912.76822.76822.15192.15191.09131.09241.0924
O61.20152.39642.83054.34075.24262.00833.08633.08632.75822.75824.76264.76266.26895.25315.2531
H71.11202.21423.52724.74506.03822.00832.49022.49023.79443.79444.89754.89756.90276.24216.2421
H82.10511.09802.17562.80034.21913.08632.49021.73823.06712.52582.57683.11164.90074.77384.4415
H92.10511.09802.17562.80034.21913.08632.49021.73822.52583.06713.11162.57684.90074.44154.7738
H102.75722.13941.09352.15682.76822.75823.79443.06712.52581.74183.05802.51063.77312.58553.1231
H112.75722.13941.09352.15682.76822.75823.79442.52583.06711.74182.51063.05803.77313.12312.5855
H124.16842.76252.15001.09522.15194.76264.89752.57683.11163.05802.51061.75032.49553.06752.5151
H134.16842.76252.15001.09522.15194.76264.89753.11162.57682.51063.05801.75032.49552.51513.0675
H145.99374.70333.48662.17411.09136.26896.90274.90074.90073.77313.77312.49552.49551.76361.7636
H155.22824.21192.79822.16861.09245.25316.24214.77384.44152.58553.12313.06752.51511.76361.7619
H165.22824.21192.79822.16861.09245.25316.24214.44154.77383.12312.58552.51513.06751.76361.7619

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.134 C1 C2 H8 107.155
C1 C2 H9 107.155 C2 C1 O6 124.547
C2 C1 H7 115.032 C2 C3 C4 113.060
C2 C3 H10 108.983 C2 C3 H11 108.983
C3 C2 H8 111.585 C3 C2 H9 111.585
C3 C4 C5 112.712 C3 C4 H12 109.346
C3 C4 H13 109.346 C4 C3 H10 109.980
C4 C3 H11 109.980 C4 C5 H14 111.580
C4 C5 H15 111.059 C4 C5 H16 111.059
C5 C4 H12 109.571 C5 C4 H13 109.571
O6 C1 H7 120.420 H8 C2 H9 104.654
H10 C3 H11 105.575 H12 C4 H13 106.079
H14 C5 H15 107.734 H14 C5 H16 107.734
H15 C5 H16 107.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.173      
2 C -0.313      
3 C -0.249      
4 C -0.271      
5 C -0.332      
6 O -0.279      
7 H 0.084      
8 H 0.148      
9 H 0.148      
10 H 0.140      
11 H 0.140      
12 H 0.124      
13 H 0.124      
14 H 0.122      
15 H 0.121      
16 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.558 -0.123 0.000 2.561
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.704 3.863 0.000
y 3.863 -36.814 0.000
z 0.000 0.000 -37.249
Traceless
 xyz
x -7.672 3.863 0.000
y 3.863 4.163 0.000
z 0.000 0.000 3.510
Polar
3z2-r27.019
x2-y2-7.890
xy3.863
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.103 -0.414 0.000
y -0.414 10.294 0.000
z 0.000 0.000 7.151


<r2> (average value of r2) Å2
<r2> 249.259
(<r2>)1/2 15.788