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All results from a given calculation for C5H10O (3-Pentanone)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-270.203253
Energy at 298.15K 
HF Energy-270.203253
Nuclear repulsion energy238.466560
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 B3PW91/3-21G
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 3148 3026 21.80      
2 A1 3075 2955 2.51      
3 A1 3052 2933 15.60      
4 A1 1752 1684 56.64      
5 A1 1556 1496 8.64      
6 A1 1505 1446 30.88      
7 A1 1465 1408 13.20      
8 A1 1371 1318 11.22      
9 A1 1132 1088 4.71      
10 A1 1032 992 2.37      
11 A1 784 753 2.17      
12 A1 424 407 0.31      
13 A1 200 192 0.43      
14 A2 3152 3030 0.00      
15 A2 3074 2955 0.00      
16 A2 1556 1496 0.00      
17 A2 1299 1249 0.00      
18 A2 1048 1007 0.00      
19 A2 732 704 0.00      
20 A2 193 185 0.00      
21 A2 33 32 0.00      
22 B1 3153 3031 34.09      
23 B1 3085 2966 9.72      
24 B1 1556 1496 19.47      
25 B1 1348 1295 0.60      
26 B1 1167 1122 0.80      
27 B1 850 817 18.50      
28 B1 486 468 1.48      
29 B1 158 152 0.14      
30 B1 66 64 0.14      
31 B2 3148 3026 12.50      
32 B2 3074 2955 31.83      
33 B2 3043 2925 12.31      
34 B2 1556 1495 12.51      
35 B2 1494 1436 3.53      
36 B2 1465 1408 20.02      
37 B2 1379 1325 33.25      
38 B2 1149 1105 76.30      
39 B2 1045 1005 2.10      
40 B2 968 930 22.33      
41 B2 634 609 1.21      
42 B2 321 309 17.57      

Unscaled Zero Point Vibrational Energy (zpe) 31363.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 30146.5 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 B3PW91/3-21G
ABC
0.29072 0.06579 0.05588

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.292
C2 0.000 0.000 0.058
C3 0.000 1.290 -0.753
C4 0.000 -1.290 -0.753
C5 0.000 2.530 0.146
C6 0.000 -2.530 0.146
H7 0.881 1.281 -1.413
H8 -0.881 1.281 -1.413
H9 -0.881 -1.281 -1.413
H10 0.881 -1.281 -1.413
H11 0.000 3.447 -0.454
H12 -0.883 2.530 0.793
H13 0.883 2.530 0.793
H14 0.000 -3.447 -0.454
H15 0.883 -2.530 0.793
H16 -0.883 -2.530 0.793

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23412.41772.41772.77792.77793.11943.11943.11943.11943.86362.72502.72503.86362.72502.7250
C21.23411.52361.52362.53202.53202.13962.13962.13962.13963.48442.77822.77823.48442.77822.7782
C32.41771.52362.57991.53183.92471.10041.10042.79622.79622.17732.16942.16944.74604.21404.2140
C42.41771.52362.57993.92471.53182.79622.79621.10041.10044.74604.21404.21402.17732.16942.1694
C52.77792.53201.53183.92475.06092.18332.18334.21054.21051.09511.09461.09466.00715.17705.1770
C62.77792.53203.92471.53185.06094.21054.21052.18332.18336.00715.17705.17701.09511.09461.0946
H73.11942.13961.10042.79622.18334.21051.76123.10822.56122.52723.08792.53514.90324.40274.7426
H83.11942.13961.10042.79622.18334.21051.76122.56123.10822.52722.53513.08794.90324.74264.4027
H93.11942.13962.79621.10044.21052.18333.10822.56121.76124.90324.40274.74262.52723.08792.5351
H103.11942.13962.79621.10044.21052.18332.56123.10821.76124.90324.74264.40272.52722.53513.0879
H113.86363.48442.17734.74601.09516.00712.52722.52724.90324.90321.78201.78206.89336.16846.1684
H122.72502.77822.16944.21401.09465.17703.08792.53514.40274.74261.78201.76506.16845.35815.0590
H132.72502.77822.16944.21401.09465.17702.53513.08794.74264.40271.78201.76506.16845.05905.3581
H143.86363.48444.74602.17736.00711.09514.90324.90322.52722.52726.89336.16846.16841.78201.7820
H152.72502.77824.21402.16945.17701.09464.40274.74263.08792.53516.16845.35815.05901.78201.7650
H162.72502.77824.21402.16945.17701.09464.74264.40272.53513.08796.16845.05905.35811.78201.7650

picture of 3-Pentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 122.149 O1 C2 C4 122.149
C2 C3 C5 111.927 C2 C3 H7 108.171
C2 C3 H8 108.171 C2 C4 C6 111.927
C2 C4 H9 108.171 C2 C4 H10 108.171
C3 C2 C4 115.703 C3 C5 H11 110.868
C3 C5 H12 110.267 C3 C5 H13 110.267
C4 C6 H14 110.868 C4 C6 H15 110.267
C4 C6 H16 110.267 C5 C3 H7 111.022
C5 C3 H8 111.022 C6 C4 H9 111.022
C6 C4 H10 111.022 H7 C3 H8 106.303
H9 C4 H10 106.303 H11 C5 H12 108.947
H11 C5 H13 108.947 H12 C5 H13 107.463
H14 C6 H15 108.947 H14 C6 H16 108.947
H15 C6 H16 107.463
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.447      
2 C 0.457      
3 C -0.533      
4 C -0.533      
5 C -0.605      
6 C -0.605      
7 H 0.237      
8 H 0.237      
9 H 0.237      
10 H 0.237      
11 H 0.205      
12 H 0.227      
13 H 0.227      
14 H 0.205      
15 H 0.227      
16 H 0.227      


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 -2.506 2.506
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.848 0.000 0.000
y 0.000 -36.614 0.000
z 0.000 0.000 -40.562
Traceless
 xyz
x 1.740 0.000 0.000
y 0.000 2.091 0.000
z 0.000 0.000 -3.831
Polar
3z2-r2-7.663
x2-y2-0.234
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.208 0.000 0.000
y 0.000 8.721 0.000
z 0.000 0.000 7.742


<r2> (average value of r2) Å2
<r2> 214.016
(<r2>)1/2 14.629