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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-52.604392
Energy at 298.15K-52.614986
Nuclear repulsion energy134.049287
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/CEP-121G*
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 3956 3574 36.58      
2 A 3817 3448 42.71      
3 A 3275 2959 69.97      
4 A 3246 2933 79.08      
5 A 3230 2918 60.05      
6 A 3228 2916 4.68      
7 A 3194 2886 32.05      
8 A 3191 2883 30.29      
9 A 3172 2865 44.50      
10 A 1917 1732 434.85      
11 A 1787 1615 112.09      
12 A 1641 1482 5.80      
13 A 1629 1472 5.99      
14 A 1624 1467 1.96      
15 A 1610 1455 8.69      
16 A 1563 1412 44.04      
17 A 1545 1395 18.21      
18 A 1473 1331 44.81      
19 A 1431 1293 20.69      
20 A 1375 1242 96.85      
21 A 1358 1227 22.09      
22 A 1237 1118 3.20      
23 A 1209 1092 2.20      
24 A 1154 1042 12.46      
25 A 1112 1004 1.64      
26 A 981 887 2.12      
27 A 949 857 1.97      
28 A 921 832 0.71      
29 A 799 722 4.97      
30 A 732 661 19.35      
31 A 627 567 12.82      
32 A 559 505 23.23      
33 A 454 410 3.67      
34 A 358 324 2.28      
35 A 256 231 0.15      
36 A 219 198 280.93      
37 A 198 179 13.18      
38 A 99 89 2.87      
39 A 24 22 2.50      

Unscaled Zero Point Vibrational Energy (zpe) 30574.5 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 27621.0 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/CEP-121G*
ABC
0.28767 0.06051 0.05263

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.715 -0.199 0.010
H2 -2.894 -0.226 1.083
H3 -3.495 0.410 -0.441
H4 -2.827 -1.213 -0.370
C5 -1.325 0.371 -0.308
H6 -1.186 0.418 -1.386
H7 -1.242 1.388 0.060
C8 -0.200 -0.473 0.312
H9 -0.237 -1.495 -0.061
H10 -0.329 -0.528 1.392
N11 2.196 -0.770 -0.123
H12 3.091 -0.402 -0.365
H13 2.008 -1.719 -0.350
C14 1.184 0.130 0.076
O15 1.391 1.317 0.115

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.08831.08721.08861.53572.16022.16542.54772.79662.77684.94605.82184.97433.91364.3785
H21.08831.75641.75842.18003.07052.52532.81313.15872.60125.25956.16065.32114.21584.6562
H31.08721.75641.75652.17432.49462.50563.49293.79233.77605.82066.63625.90074.71575.0004
H41.08861.75841.75652.18422.52693.07582.81352.62343.13285.04915.97384.86154.25394.9430
C51.53572.18002.17432.18421.08871.08421.53652.17332.16533.70574.48353.93392.54972.9070
H62.16023.07052.49462.52691.08871.74202.15662.51293.05773.80124.47363.98032.80053.1157
H72.16542.52532.50563.07581.08421.74202.14753.05482.50614.06354.70804.51482.73342.6353
C82.54772.81313.49292.81351.53652.15662.14751.08831.08902.45353.36102.62031.52812.4030
H92.79663.15873.79232.62342.17332.51293.05481.08831.74712.54013.51642.27482.16293.2539
H102.77682.60123.77603.13282.16533.05772.50611.08901.74712.95483.84753.14872.11062.8277
N114.94605.25955.82065.04913.70573.80124.06352.45352.54012.95480.99740.99441.36852.2490
H125.82186.16066.63625.97384.48354.47364.70803.36103.51643.84750.99741.70532.02852.4650
H134.97435.32115.90074.86153.93393.98034.51482.62032.27483.14870.99441.70532.06853.1327
C143.91364.21584.71574.25392.54972.80052.73341.52812.16292.11061.36852.02852.06851.2057
O154.37854.65625.00044.94302.90703.11572.63532.40303.25392.82772.24902.46503.13271.2057

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.624 C1 C5 H7 110.295
C1 C5 C8 112.051 H2 C1 H3 107.679
H2 C1 H4 107.749 H2 C1 C5 111.210
H3 C1 H4 107.668 H3 C1 C5 110.829
H4 C1 C5 111.531 C5 C8 H9 110.621
C5 C8 H10 109.947 C5 C8 C14 112.606
H6 C5 H7 106.594 H6 C5 C8 109.286
H7 C5 C8 108.833 C8 C14 N11 115.671
C8 C14 O15 122.609 H9 C8 H10 106.725
H9 C8 C14 110.393 H10 C8 C14 106.294
N11 C14 O15 121.655 H12 N11 H13 117.787
H12 N11 C14 117.187 H13 N11 C14 121.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.509      
2 H 0.154      
3 H 0.178      
4 H 0.146      
5 C -0.258      
6 H 0.146      
7 H 0.185      
8 C -0.432      
9 H 0.148      
10 H 0.185      
11 N -0.699      
12 H 0.381      
13 H 0.378      
14 C 0.446      
15 O -0.449      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.275 -3.784 -0.759 3.869
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.629 -6.566 -2.483
y -6.566 -40.015 0.823
z -2.483 0.823 -37.677
Traceless
 xyz
x 4.217 -6.566 -2.483
y -6.566 -3.862 0.823
z -2.483 0.823 -0.355
Polar
3z2-r2-0.710
x2-y25.385
xy-6.566
xz-2.483
yz0.823


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.738 -0.198 -0.157
y -0.198 7.930 0.062
z -0.157 0.062 6.369


<r2> (average value of r2) Å2
<r2> 177.707
(<r2>)1/2 13.331