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All results from a given calculation for C4H9NO (Propanamide, 2-methyl-)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-286.165683
Energy at 298.15K-286.176426
Nuclear repulsion energy247.343632
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 B3PW91/3-21G
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 3687 3544 27.61      
2 A 3555 3417 27.20      
3 A 3158 3035 12.37      
4 A 3137 3015 14.96      
5 A 3136 3014 27.75      
6 A 3130 3009 21.52      
7 A 3069 2950 14.79      
8 A 3065 2946 20.22      
9 A 3055 2936 21.18      
10 A 1762 1693 189.16      
11 A 1671 1606 86.86      
12 A 1571 1511 20.23      
13 A 1559 1498 12.18      
14 A 1548 1488 3.69      
15 A 1541 1481 3.62      
16 A 1460 1403 31.51      
17 A 1441 1385 13.38      
18 A 1401 1347 39.78      
19 A 1352 1300 26.67      
20 A 1306 1255 91.56      
21 A 1222 1175 3.95      
22 A 1152 1108 4.69      
23 A 1136 1092 10.62      
24 A 1088 1046 4.90      
25 A 1000 961 0.53      
26 A 973 936 6.16      
27 A 918 882 4.90      
28 A 796 765 34.03      
29 A 750 721 9.61      
30 A 617 593 34.59      
31 A 606 583 70.29      
32 A 505 485 174.13      
33 A 482 464 13.81      
34 A 352 338 0.84      
35 A 306 294 7.79      
36 A 248 238 5.20      
37 A 240 231 0.20      
38 A 200 193 0.60      
39 A 43 41 6.26      

Unscaled Zero Point Vibrational Energy (zpe) 29118.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 27989.0 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 B3PW91/3-21G
ABC
0.16052 0.09901 0.07662

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.572 -0.960 -0.416
H2 -1.320 -1.664 -1.217
H3 -1.464 -1.485 0.538
H4 -2.611 -0.636 -0.545
C5 -1.091 1.311 0.593
H6 -0.400 2.162 0.623
H7 -1.135 0.866 1.594
C8 -0.622 0.241 -0.420
H9 -0.571 0.688 -1.422
N10 1.785 0.588 -0.437
H11 2.737 0.380 -0.156
H12 1.616 1.378 -1.045
C13 0.777 -0.222 0.005
O14 0.973 -1.213 0.724
H15 -2.089 1.677 0.327

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 N10 H11 H12 C13 O14 H15
C11.09591.09431.09562.53153.49282.75011.53172.17523.69734.51984.00292.49782.80012.7876
H21.09591.77011.78163.49014.34373.78612.17982.47683.91434.66464.23072.82263.03803.7594
H31.09431.77011.79202.82193.80022.59812.14643.05983.97564.64784.49282.62672.45893.2303
H41.09561.78161.79202.71963.75213.00132.17722.58484.56435.45674.70793.45663.84532.5256
C52.53153.49012.82192.71961.09641.09631.54662.17243.13964.00973.16422.48733.26281.0962
H63.49284.34373.80023.75211.09641.77882.19682.52612.89403.69022.73072.72963.64431.7826
H72.75013.78612.59813.00131.09631.77882.17013.07323.56804.27623.84592.71383.08531.7818
C81.53172.17982.14642.17721.54662.19682.17011.09832.43193.37142.58611.53312.44212.1846
H92.17522.47683.05982.58482.17242.52613.07321.09832.55563.55472.32342.16323.25572.5180
N103.69733.91433.97564.56433.13962.89403.56802.43192.55561.01341.01111.36692.29104.0965
H114.51984.66464.64785.45674.00973.69024.27623.37143.55471.01341.74432.05642.53375.0203
H124.00294.23074.49284.70793.16422.73073.84592.58612.32341.01111.74432.08933.20173.9618
C132.49782.82262.62673.45662.48732.72962.71381.53312.16321.36692.05642.08931.23953.4532
O142.80013.03802.45893.84533.26283.64433.08532.44213.25572.29102.53373.20171.23954.2288
H152.78763.75943.23032.52561.09621.78261.78182.18462.51804.09655.02033.96183.45324.2288

picture of Propanamide, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 C5 110.643 C1 C8 H9 110.507
C1 C8 C13 109.168 H2 C1 H3 107.837
H2 C1 H4 108.771 H2 C1 C8 111.022
H3 C1 H4 109.832 H3 C1 C8 108.492
H4 C1 C8 110.835 C5 C8 H9 109.267
C5 C8 C13 107.731 H6 C5 H7 108.436
H6 C5 C8 111.296 H6 C5 H15 108.789
H7 C5 C8 109.200 H7 C5 H15 108.719
C8 C5 H15 110.343 C8 C13 N10 113.855
C8 C13 O14 123.127 H9 C8 C13 109.472
N10 C13 O14 122.966 H11 N10 H12 118.992
H11 N10 C13 118.767 H12 N10 C13 122.235
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.579      
2 H 0.214      
3 H 0.238      
4 H 0.199      
5 C -0.580      
6 H 0.204      
7 H 0.229      
8 C -0.406      
9 H 0.211      
10 N -0.794      
11 H 0.334      
12 H 0.329      
13 C 0.701      
14 O -0.515      
15 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.429 3.050 -1.886 3.611
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.309 3.941 -2.430
y 3.941 -38.808 0.369
z -2.430 0.369 -37.598
Traceless
 xyz
x 5.894 3.941 -2.430
y 3.941 -3.854 0.369
z -2.430 0.369 -2.040
Polar
3z2-r2-4.080
x2-y26.499
xy3.941
xz-2.430
yz0.369


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> 172.145
(<r2>)1/2 13.120