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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-286.191640
Energy at 298.15K-286.202455
Nuclear repulsion energy238.536709
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 mPW1PW91/3-21G
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 3714 3546 29.16      
2 A 3581 3419 28.93      
3 A 3172 3028 19.99      
4 A 3148 3005 22.58      
5 A 3145 3002 30.28      
6 A 3115 2974 1.80      
7 A 3086 2946 23.92      
8 A 3078 2938 7.72      
9 A 3069 2929 20.25      
10 A 1788 1707 238.01      
11 A 1682 1605 91.98      
12 A 1572 1500 9.78      
13 A 1567 1496 10.74      
14 A 1555 1484 4.06      
15 A 1534 1465 6.39      
16 A 1467 1400 7.01      
17 A 1402 1339 8.96      
18 A 1391 1328 79.90      
19 A 1358 1297 59.43      
20 A 1333 1273 3.26      
21 A 1285 1227 19.31      
22 A 1171 1118 3.69      
23 A 1142 1090 15.15      
24 A 1083 1034 3.99      
25 A 1054 1006 0.80      
26 A 932 890 0.54      
27 A 918 877 3.65      
28 A 884 844 3.60      
29 A 775 740 12.45      
30 A 741 708 41.49      
31 A 603 575 83.74      
32 A 557 531 30.80      
33 A 499 476 185.28      
34 A 429 410 6.81      
35 A 340 324 0.10      
36 A 250 238 0.05      
37 A 198 189 0.30      
38 A 98 94 2.09      
39 A 58 56 4.43      

Unscaled Zero Point Vibrational Energy (zpe) 29387.5 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 28053.3 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 mPW1PW91/3-21G
ABC
0.25943 0.06216 0.05492

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.697 -0.041 -0.000
H2 2.884 -1.112 0.136
H3 3.411 0.340 -0.737
H4 2.887 0.462 0.955
C5 1.252 0.197 -0.459
H6 1.086 1.268 -0.620
H7 1.077 -0.305 -1.418
C8 0.236 -0.339 0.571
H9 0.378 0.173 1.530
H10 0.390 -1.411 0.717
N11 -1.587 1.152 0.041
H12 -2.514 1.371 -0.298
H13 -0.988 1.905 0.346
C14 -1.196 -0.157 0.086
O15 -1.930 -1.088 -0.260

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09521.09471.09581.53492.16712.16872.54412.78682.77784.44705.40734.18183.89544.7517
H21.09521.77441.77382.17453.07722.51572.79223.14222.57855.01175.95724.91274.18984.8305
H31.09471.77441.77542.18172.50652.51493.50063.79063.78305.12266.03004.79314.70585.5497
H41.09581.77381.77542.17782.52503.08092.79612.59043.13074.61795.61864.17964.21995.2045
C51.53492.17452.18172.17781.09651.09601.54272.17302.17053.03643.94812.92992.53223.4377
H62.16713.07722.50652.52501.09651.76382.17372.51493.07422.75523.61552.37472.78113.8445
H72.16872.51572.51493.08091.09601.76382.15973.06762.50123.36864.11823.50162.72923.3169
C82.54412.79223.50062.79611.54272.17372.15971.09711.09222.41383.35302.56621.52252.4381
H92.78683.14223.79062.59042.17302.51493.06761.09711.78042.65263.62532.50352.16173.1821
H102.77782.57853.78303.13072.17053.07422.50121.09221.78043.30614.14713.60952.11722.5379
N114.44705.01175.12264.61793.03642.75523.36862.41382.65263.30611.01161.00911.36722.2866
H125.40735.95726.03005.61863.94813.61554.11823.35303.62534.14711.01161.74072.05442.5277
H134.18184.91274.79314.17962.92992.37473.50162.56622.50353.60951.00911.74072.08903.1962
C143.89544.18984.70584.21992.53222.78112.72921.52252.16172.11721.36722.05442.08901.2354
O154.75174.83055.54975.20453.43773.84453.31692.43813.18212.53792.28662.52773.19621.2354

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.759 C1 C5 H7 109.919
C1 C5 C8 111.512 H2 C1 H3 108.243
H2 C1 H4 108.112 H2 C1 C5 110.425
H3 C1 H4 108.292 H3 C1 C5 111.020
H4 C1 C5 110.651 C5 C8 H9 109.650
C5 C8 H10 109.740 C5 C8 C14 111.401
H6 C5 H7 107.121 H6 C5 C8 109.742
H7 C5 C8 108.681 C8 C14 N11 113.191
C8 C14 O15 123.935 H9 C8 H10 108.825
H9 C8 C14 110.165 H10 C8 C14 106.994
N11 C14 O15 122.860 H12 N11 H13 118.958
H12 N11 C14 118.690 H13 N11 C14 122.346
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.622      
2 H 0.219      
3 H 0.217      
4 H 0.210      
5 C -0.437      
6 H 0.207      
7 H 0.238      
8 C -0.518      
9 H 0.223      
10 H 0.254      
11 N -0.800      
12 H 0.337      
13 H 0.332      
14 C 0.658      
15 O -0.518      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.686 3.343 0.675 3.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.190 -7.149 -0.474
y -7.149 -35.809 -0.350
z -0.474 -0.350 -37.370
Traceless
 xyz
x -2.601 -7.149 -0.474
y -7.149 2.471 -0.350
z -0.474 -0.350 0.130
Polar
3z2-r20.259
x2-y2-3.381
xy-7.149
xz-0.474
yz-0.350


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> 212.398
(<r2>)1/2 14.574