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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-286.262553
Energy at 298.15K-286.273276
Nuclear repulsion energy237.494331
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 B3LYP/3-21G
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 3659 3531 19.92      
2 A 3529 3405 20.80      
3 A 3141 3031 24.66      
4 A 3115 3006 26.76      
5 A 3112 3003 37.92      
6 A 3084 2976 2.76      
7 A 3058 2951 28.96      
8 A 3052 2945 6.58      
9 A 3046 2940 20.08      
10 A 1757 1695 226.67      
11 A 1672 1613 76.35      
12 A 1572 1517 7.55      
13 A 1566 1511 8.45      
14 A 1556 1501 2.48      
15 A 1537 1483 4.32      
16 A 1465 1413 3.93      
17 A 1396 1347 2.91      
18 A 1377 1328 40.69      
19 A 1343 1296 90.37      
20 A 1331 1284 2.26      
21 A 1279 1234 28.45      
22 A 1165 1124 4.41      
23 A 1132 1092 12.50      
24 A 1070 1032 7.36      
25 A 1027 991 0.85      
26 A 917 885 1.18      
27 A 912 880 3.10      
28 A 865 835 3.40      
29 A 773 746 6.43      
30 A 730 704 36.50      
31 A 593 572 59.30      
32 A 550 531 26.62      
33 A 471 454 202.80      
34 A 426 411 7.29      
35 A 335 323 0.10      
36 A 246 237 0.05      
37 A 196 189 0.29      
38 A 95 92 1.91      
39 A 53 51 4.43      

Unscaled Zero Point Vibrational Energy (zpe) 29100.6 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 28079.2 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 B3LYP/3-21G
ABC
0.25747 0.06141 0.05433

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.715 -0.034 0.001
H2 2.907 -1.100 0.166
H3 3.426 0.331 -0.748
H4 2.904 0.496 0.942
C5 1.261 0.185 -0.466
H6 1.090 1.252 -0.655
H7 1.090 -0.342 -1.412
C8 0.237 -0.328 0.580
H9 0.378 0.209 1.527
H10 0.390 -1.395 0.754
N11 -1.607 1.153 0.034
H12 -2.538 1.361 -0.311
H13 -1.017 1.917 0.339
C14 -1.203 -0.158 0.088
O15 -1.930 -1.099 -0.258

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09591.09551.09651.54242.17382.17472.56172.80132.79714.48265.44404.22473.92034.7720
H21.09591.77571.77512.18223.08412.52322.81093.15652.60185.04805.99504.95324.21744.8557
H31.09551.77571.77662.18782.51292.51933.51683.80503.80155.15986.06804.84114.72855.5647
H41.09651.77511.77662.18542.53193.08712.81492.60843.15164.64835.65064.21374.24505.2294
C51.54242.18222.18782.18541.09701.09641.55112.17932.17803.06873.98022.97252.54833.4458
H62.17383.08412.51292.53191.09701.76492.17892.52023.07932.78563.64572.42232.79183.8473
H72.17472.52322.51933.08711.09641.76492.16693.07332.50783.40694.15693.55072.74583.3203
C82.56172.81093.51682.81491.55112.17892.16691.09751.09262.42743.36822.58211.53052.4475
H92.80133.15653.80502.60842.17932.52023.07331.09751.78112.65713.63392.50462.16893.1972
H102.79712.60183.80153.15162.17803.07932.50781.09261.78113.31734.16013.62242.12392.5481
N114.48265.04805.15984.64833.06872.78563.40692.42742.65713.31731.01401.01151.37372.2942
H125.44405.99506.06805.65063.98023.64574.15693.36823.63394.16011.01401.74412.06182.5351
H134.22474.95324.84114.21372.97252.42233.55072.58212.50463.62241.01151.74412.09803.2066
C143.92034.21744.72854.24502.54832.79182.74581.53052.16892.12391.37372.06182.09801.2383
O154.77204.85575.56475.22943.44583.84733.32032.44753.19722.54812.29422.53513.20661.2383

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.739 C1 C5 H7 109.844
C1 C5 C8 111.810 H2 C1 H3 108.252
H2 C1 H4 108.124 H2 C1 C5 110.468
H3 C1 H4 108.283 H3 C1 C5 110.933
H4 C1 C5 110.684 C5 C8 H9 109.546
C5 C8 H10 109.731 C5 C8 C14 111.570
H6 C5 H7 107.141 H6 C5 C8 109.539
H7 C5 C8 108.648 C8 C14 N11 113.289
C8 C14 O15 123.901 H9 C8 H10 108.833
H9 C8 C14 110.148 H10 C8 C14 106.946
N11 C14 O15 122.794 H12 N11 H13 118.886
H12 N11 C14 118.650 H13 N11 C14 122.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.550     -0.397
2 H 0.194     0.111
3 H 0.191     0.090
4 H 0.185     0.103
5 C -0.376     0.285
6 H 0.180     -0.040
7 H 0.208     -0.009
8 C -0.455     -0.484
9 H 0.193     0.122
10 H 0.223     0.125
11 N -0.750     -1.011
12 H 0.315     0.425
13 H 0.310     0.430
14 C 0.634     0.780
15 O -0.503     -0.530


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.579 3.292 0.637 3.706
CHELPG        
AIM        
ESP 1.573 3.290 0.660 3.706


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.207 -7.037 -0.463
y -7.037 -36.045 -0.359
z -0.463 -0.359 -37.512
Traceless
 xyz
x -2.429 -7.037 -0.463
y -7.037 2.315 -0.359
z -0.463 -0.359 0.114
Polar
3z2-r20.229
x2-y2-3.162
xy-7.037
xz-0.463
yz-0.359


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.083 0.082 0.434
y 0.082 7.375 0.182
z 0.434 0.182 5.370


<r2> (average value of r2) Å2
<r2> 214.564
(<r2>)1/2 14.648