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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: HF/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 HF/6-311G*
 hartrees
Energy at 0K-286.109356
Energy at 298.15K-286.120038
Nuclear repulsion energy240.222618
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 HF/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 3979 3598 34.76      
2 A 3848 3480 40.91      
3 A 3257 2945 82.90      
4 A 3237 2928 75.78      
5 A 3215 2908 31.08      
6 A 3208 2901 8.57      
7 A 3200 2894 23.31      
8 A 3174 2870 44.77      
9 A 3168 2865 22.26      
10 A 1959 1772 407.79      
11 A 1810 1637 123.74      
12 A 1641 1484 6.25      
13 A 1633 1477 7.02      
14 A 1623 1468 2.53      
15 A 1605 1451 7.19      
16 A 1571 1420 63.17      
17 A 1551 1403 7.75      
18 A 1476 1335 56.23      
19 A 1450 1312 5.84      
20 A 1374 1243 107.15      
21 A 1371 1240 5.97      
22 A 1237 1118 2.75      
23 A 1227 1109 1.81      
24 A 1175 1063 6.47      
25 A 1116 1010 2.27      
26 A 994 899 2.94      
27 A 966 874 2.84      
28 A 913 826 1.14      
29 A 810 732 8.05      
30 A 682 617 11.09      
31 A 670 606 26.53      
32 A 540 489 6.33      
33 A 464 420 2.48      
34 A 367 332 4.09      
35 A 263 238 0.33      
36 A 240 217 283.84      
37 A 195 176 9.72      
38 A 107 97 0.92      
39 A 31 28 1.73      

Unscaled Zero Point Vibrational Energy (zpe) 30671.6 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 27739.4 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 HF/6-311G*
ABC
0.29872 0.06140 0.05250

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.725 -0.240 0.010
H2 -2.860 -0.720 0.976
H3 -3.528 0.478 -0.112
H4 -2.848 -1.002 -0.754
C5 -1.362 0.441 -0.089
H6 -1.268 0.942 -1.047
H7 -1.277 1.217 0.663
C8 -0.211 -0.545 0.076
H9 -0.261 -1.322 -0.682
H10 -0.287 -1.055 1.035
N11 2.199 -0.761 -0.084
H12 3.117 -0.395 0.006
H13 2.074 -1.735 0.042
C14 1.158 0.109 0.016
O15 1.322 1.290 0.047

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.08651.08471.08651.52662.15302.15482.53292.77852.76694.95185.84325.02583.89874.3267
H21.08651.75071.75302.17413.06382.52092.80343.14142.59565.16916.06395.12324.21404.7326
H31.08471.75071.75082.16682.48922.49333.47673.77383.76465.85976.70326.02534.70314.9209
H41.08651.75301.75082.17542.52163.06552.80192.60743.12445.09656.04305.03904.22814.8254
C51.52662.17412.16682.17541.08491.08331.52482.16212.15833.75834.55714.06902.54442.8187
H62.15303.06382.48922.52161.08491.73152.14272.50523.04743.98114.70374.41832.77732.8338
H72.15482.52092.49333.06551.08331.73152.14073.04742.50544.06774.72554.50772.75202.6720
C82.53292.80343.47672.80191.52482.14272.14071.08731.08902.42473.33172.57611.51882.3915
H92.77853.14143.77382.60742.16212.50523.04741.08731.73852.59323.56952.47912.13373.1408
H102.76692.59563.76463.12442.15833.04742.50541.08901.73852.74223.61682.65012.11743.0111
N114.95185.16915.85975.09653.75833.98114.06772.42472.59322.74220.99190.98991.35992.2341
H125.84326.06396.70326.04304.55714.70374.72553.33173.56953.61680.99191.69782.02222.4620
H135.02585.12326.02535.03904.06904.41834.50772.57612.47912.65010.98991.69782.05873.1166
C143.89874.21404.70314.22812.54442.77732.75201.51882.13372.11741.35992.02222.05871.1926
O154.32674.73264.92094.82542.81872.83382.67202.39153.14083.01112.23412.46203.11661.1926

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.910 C1 C5 H7 110.151
C1 C5 C8 112.217 H2 C1 H3 107.474
H2 C1 H4 107.551 H2 C1 C5 111.498
H3 C1 H4 107.485 H3 C1 C5 111.019
H4 C1 C5 111.604 C5 C8 H9 110.614
C5 C8 H10 110.212 C5 C8 C14 113.440
H6 C5 H7 105.991 H6 C5 C8 109.219
H7 C5 C8 109.156 C8 C14 N11 114.654
C8 C14 O15 123.330 H9 C8 H10 106.039
H9 C8 C14 108.789 H10 C8 C14 107.433
N11 C14 O15 122.015 H12 N11 H13 117.890
H12 N11 C14 117.749 H13 N11 C14 121.557
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.615 -0.204   -0.335
2 H 0.202 0.039   0.075
3 H 0.216 0.041   0.073
4 H 0.201 0.031   0.067
5 C -0.396 0.310   0.347
6 H 0.217 -0.055   -0.046
7 H 0.227 -0.054   -0.045
8 C -0.546 -0.262   -0.377
9 H 0.225 0.065   0.102
10 H 0.229 0.046   0.081
11 N -0.902 -1.102   -1.116
12 H 0.378 0.454   0.461
13 H 0.374 0.421   0.428
14 C 0.667 0.929   0.938
15 O -0.477 -0.660   -0.653


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.095 -3.731 0.364 3.750
CHELPG        
AIM        
ESP 0.074 -3.752 0.396 3.773


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.795 -6.415 0.945
y -6.415 -39.730 -0.596
z 0.945 -0.596 -38.077
Traceless
 xyz
x 5.108 -6.415 0.945
y -6.415 -3.793 -0.596
z 0.945 -0.596 -1.315
Polar
3z2-r2-2.630
x2-y25.934
xy-6.415
xz0.945
yz-0.596


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.434 -0.209 -0.031
y -0.209 7.760 0.006
z -0.031 0.006 5.896


<r2> (average value of r2) Å2
<r2> 216.838
(<r2>)1/2 14.725