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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-286.123338
Energy at 298.15K-286.134066
Nuclear repulsion energy238.720507
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 B1B95/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3695 3528 29.00      
2 A 3561 3401 29.53      
3 A 3151 3009 39.11      
4 A 3139 2998 30.21      
5 A 3119 2978 4.86      
6 A 3098 2959 10.40      
7 A 3094 2955 9.90      
8 A 3060 2922 23.40      
9 A 3055 2917 10.92      
10 A 1769 1690 205.04      
11 A 1670 1595 86.57      
12 A 1563 1493 8.04      
13 A 1562 1491 9.92      
14 A 1541 1471 5.77      
15 A 1510 1442 10.39      
16 A 1457 1391 3.52      
17 A 1406 1342 39.32      
18 A 1378 1316 97.35      
19 A 1364 1303 33.67      
20 A 1296 1238 44.43      
21 A 1285 1227 0.82      
22 A 1156 1104 2.97      
23 A 1145 1093 3.88      
24 A 1099 1049 0.40      
25 A 1058 1010 1.19      
26 A 943 901 5.10      
27 A 923 881 2.63      
28 A 838 800 3.89      
29 A 767 732 27.66      
30 A 673 642 69.63      
31 A 614 587 10.82      
32 A 534 510 148.48      
33 A 502 480 92.84      
34 A 436 416 1.86      
35 A 354 338 4.15      
36 A 244 233 0.13      
37 A 193 184 9.01      
38 A 100 96 0.08      
39 A 44 42 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 29198.0 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 27881.2 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 B1B95/3-21G*
ABC
0.28786 0.06209 0.05261

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.717 -0.232 0.023
H2 -2.828 -0.768 0.972
H3 -3.514 0.514 -0.041
H4 -2.857 -0.951 -0.791
C5 -1.338 0.431 -0.067
H6 -1.239 0.982 -1.007
H7 -1.205 1.164 0.734
C8 -0.208 -0.594 0.025
H9 -0.264 -1.305 -0.809
H10 -0.298 -1.173 0.954
N11 2.214 -0.750 -0.019
H12 3.148 -0.360 -0.020
H13 2.102 -1.753 -0.040
C14 1.149 0.102 0.010
O15 1.268 1.332 0.030

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09521.09371.09521.53302.17302.17762.53552.80432.75764.95895.86685.05373.88074.2816
H21.09521.77221.77262.17653.08302.53442.79183.16822.56265.13916.07175.12834.18334.6988
H31.09371.77221.77222.17782.51602.52133.48793.80333.76585.86646.71946.05644.68174.8525
H41.09521.77261.77222.17802.53073.08702.79522.61783.10555.13396.08325.07924.21914.7862
C51.53302.17652.17782.17801.09411.09351.52902.17272.16733.74414.55584.07512.51012.7594
H62.17303.08302.51602.53071.09411.75092.14732.49403.06153.98724.69234.42422.74032.7352
H72.17762.53442.52133.08701.09351.75092.14183.05972.51603.99024.67344.47692.68202.5770
C82.53552.79183.48792.79521.52902.14732.14181.09721.09822.42753.36412.58491.52482.4267
H92.80433.16823.80332.61782.17272.49403.05971.09721.76822.65913.62652.52712.15513.1629
H102.75762.56263.76583.10552.16733.06152.51601.09821.76822.72703.67182.66142.14683.0954
N114.95895.13915.86645.13393.74413.98723.99022.42752.65912.72701.01161.00971.36442.2877
H125.86686.07176.71946.08324.55584.69234.67343.36413.62653.67181.01161.74192.05192.5302
H135.05375.12836.05645.07924.07514.42424.47692.58492.52712.66141.00971.74192.08603.1969
C143.88074.18334.68174.21912.51012.74032.68201.52482.15512.14681.36442.05192.08601.2364
O154.28164.69884.85254.78622.75942.73522.57702.42673.16293.09542.28772.53023.19691.2364

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.498 C1 C5 H7 110.896
C1 C5 C8 111.797 H2 C1 H3 108.122
H2 C1 H4 108.052 H2 C1 C5 110.710
H3 C1 H4 108.117 H3 C1 C5 110.898
H4 C1 C5 110.830 C5 C8 H9 110.571
C5 C8 H10 110.087 C5 C8 C14 110.565
H6 C5 H7 106.328 H6 C5 C8 108.764
H7 C5 C8 108.371 C8 C14 N11 114.207
C8 C14 O15 122.667 H9 C8 H10 107.297
H9 C8 C14 109.473 H10 C8 C14 108.773
N11 C14 O15 123.126 H12 N11 H13 119.037
H12 N11 C14 118.704 H13 N11 C14 122.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.607      
2 H 0.200      
3 H 0.209      
4 H 0.199      
5 C -0.411      
6 H 0.225      
7 H 0.232      
8 C -0.517      
9 H 0.222      
10 H 0.230      
11 N -0.791      
12 H 0.331      
13 H 0.325      
14 C 0.659      
15 O -0.507      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.655 -3.542 -0.048 3.602
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.601 -5.917 -0.138
y -5.917 -38.319 -0.004
z -0.138 -0.004 -37.445
Traceless
 xyz
x 6.281 -5.917 -0.138
y -5.917 -3.796 -0.004
z -0.138 -0.004 -2.485
Polar
3z2-r2-4.969
x2-y26.718
xy-5.917
xz-0.138
yz-0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.261 -0.345 -0.031
y -0.345 7.383 0.026
z -0.031 0.026 5.033


<r2> (average value of r2) Å2
<r2> 215.603
(<r2>)1/2 14.683