return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H9NO (Butanamide)

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-287.802928
Energy at 298.15K-287.813264
Nuclear repulsion energy238.962949
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
(Å4/u)
Dep P Dep U
1 A 3751 3611 24.47      
2 A 3616 3481 25.10      
3 A 3113 2997 53.70      
4 A 3107 2991 45.05      
5 A 3085 2970 9.80      
6 A 3061 2947 21.83      
7 A 3049 2935 27.68      
8 A 3030 2917 33.66      
9 A 3021 2908 14.20      
10 A 1803 1735 307.77      
11 A 1654 1593 116.91      
12 A 1519 1463 9.76      
13 A 1513 1456 9.93      
14 A 1503 1447 3.48      
15 A 1475 1420 9.98      
16 A 1424 1371 69.76      
17 A 1422 1369 10.01      
18 A 1368 1317 33.51      
19 A 1332 1282 34.66      
20 A 1275 1227 37.82      
21 A 1259 1212 6.60      
22 A 1145 1102 0.94      
23 A 1124 1083 2.33      
24 A 1087 1046 1.01      
25 A 1063 1023 2.56      
26 A 937 902 2.90      
27 A 892 858 1.08      
28 A 851 820 3.72      
29 A 752 724 7.63      
30 A 676 651 6.46      
31 A 618 595 14.45      
32 A 522 502 6.82      
33 A 426 410 2.26      
34 A 342 330 2.61      
35 A 246 237 1.67      
36 A 218 210 231.74      
37 A 185 178 7.97      
38 A 89 86 1.28      
39 A 36 35 3.95      

Unscaled Zero Point Vibrational Energy (zpe) 28793.6 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 27719.6 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 B3PW91/6-311G*
ABC
0.28988 0.06116 0.05268

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.726 -0.200 0.040
H2 -2.870 -0.362 1.114
H3 -3.518 0.474 -0.298
H4 -2.880 -1.163 -0.459
C5 -1.347 0.377 -0.255
H6 -1.245 0.570 -1.329
H7 -1.223 1.346 0.233
C8 -0.215 -0.538 0.198
H9 -0.250 -1.494 -0.340
H10 -0.341 -0.783 1.262
N11 2.185 -0.767 -0.138
H12 3.124 -0.402 -0.155
H13 2.056 -1.763 -0.127
C14 1.156 0.107 0.050
O15 1.331 1.309 0.109

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09531.09361.09541.52352.15922.16542.53832.81882.74204.94735.85655.03403.89424.3292
H21.09531.76391.76542.17713.07882.53142.81423.20272.56825.22426.12705.27014.19094.6318
H31.09361.76391.76392.17332.49802.51233.48973.81443.75565.83916.70096.00894.70134.9373
H41.09541.76541.76392.18212.53623.08602.81512.65323.09085.09136.05954.98414.26194.9158
C51.52352.17712.17332.18211.09601.09321.52432.16992.15833.71514.53954.02242.53632.8592
H62.15923.07882.49802.53621.09601.74542.14932.49533.05943.86964.62714.21752.80743.0415
H72.16542.53142.51233.08601.09321.74542.13723.05622.52374.02764.70144.53352.68862.5574
C82.53832.81423.48972.81511.52432.14932.13721.09701.09902.43483.36022.60121.52262.4100
H92.81883.20273.81442.65322.16992.49533.05621.09701.75422.54993.55092.33222.16643.2487
H102.74202.56823.75563.09082.15833.05942.52371.09901.75422.88843.76252.93872.12182.9154
N114.94735.22425.83915.09133.71513.86964.02762.43482.54992.88841.00661.00441.36362.2578
H125.85656.12706.70096.05954.53954.62714.70143.36023.55093.76251.00661.72932.04302.4920
H135.03405.27016.00894.98414.02244.21754.53352.60122.33222.93871.00441.72932.08333.1646
C143.89424.19094.70134.26192.53632.80742.68861.52262.16642.12181.36362.04302.08331.2152
O154.32924.63184.93734.91582.85923.04152.55742.41003.24872.91542.25782.49203.16461.2152

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.959 C1 C5 H7 110.620
C1 C5 C8 112.782 H2 C1 H3 107.382
H2 C1 H4 107.389 H2 C1 C5 111.430
H3 C1 H4 107.369 H3 C1 C5 111.222
H4 C1 C5 111.816 C5 C8 H9 110.689
C5 C8 H10 109.659 C5 C8 C14 112.692
H6 C5 H7 105.743 H6 C5 C8 109.126
H7 C5 C8 108.351 C8 C14 N11 114.932
C8 C14 O15 122.954 H9 C8 H10 106.037
H9 C8 C14 110.523 H10 C8 C14 106.953
N11 C14 O15 122.110 H12 N11 H13 118.608
H12 N11 C14 118.289 H13 N11 C14 122.496
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 -0.653      
2 H 0.217      
3 H 0.227      
4 H 0.213      
5 C -0.438      
6 H 0.223      
7 H 0.245      
8 C -0.561      
9 H 0.220      
10 H 0.245      
11 N -0.810      
12 H 0.360      
13 H 0.359      
14 C 0.532      
15 O -0.378      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.372 -3.583 -0.039 3.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.706 -6.371 -0.301
y -6.371 -38.833 -0.160
z -0.301 -0.160 -37.935
Traceless
 xyz
x 5.678 -6.371 -0.301
y -6.371 -3.513 -0.160
z -0.301 -0.160 -2.165
Polar
3z2-r2-4.331
x2-y26.127
xy-6.371
xz-0.301
yz-0.160


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


<r2> (average value of r2) Å2
<r2> 216.955
(<r2>)1/2 14.729