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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-285.050500
Energy at 298.15K-285.061174
HF Energy-284.455009
Nuclear repulsion energy245.830287
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 MP2/3-21G
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 3703 3535 28.24      
2 A 3564 3402 36.80      
3 A 3184 3039 16.36      
4 A 3163 3019 28.03      
5 A 3159 3016 15.62      
6 A 3159 3015 21.47      
7 A 3093 2952 13.85      
8 A 3088 2948 16.78      
9 A 3081 2941 17.20      
10 A 1732 1653 185.55      
11 A 1695 1617 32.00      
12 A 1608 1535 12.53      
13 A 1602 1529 9.49      
14 A 1590 1518 0.59      
15 A 1588 1516 3.07      
16 A 1499 1431 16.71      
17 A 1480 1413 6.01      
18 A 1418 1354 16.26      
19 A 1391 1327 20.28      
20 A 1310 1250 136.90      
21 A 1248 1191 8.60      
22 A 1164 1111 3.13      
23 A 1154 1101 8.39      
24 A 1085 1036 8.19      
25 A 1011 965 0.61      
26 A 989 944 2.97      
27 A 912 871 2.90      
28 A 775 740 13.76      
29 A 732 699 9.40      
30 A 615 587 7.66      
31 A 583 557 53.44      
32 A 485 463 5.14      
33 A 395 377 251.08      
34 A 363 346 2.71      
35 A 309 295 8.88      
36 A 255 243 5.33      
37 A 239 228 0.39      
38 A 201 192 0.21      
39 A 49 47 4.60      

Unscaled Zero Point Vibrational Energy (zpe) 29334.8 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 28000.0 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 MP2/3-21G
ABC
0.15737 0.10084 0.07361

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.601 -0.970 -0.341
H2 -1.320 -1.742 -1.065
H3 -1.552 -1.411 0.658
H4 -2.626 -0.643 -0.550
C5 -1.077 1.363 0.549
H6 -0.379 2.206 0.514
H7 -1.105 0.976 1.574
C8 -0.631 0.226 -0.413
H9 -0.593 0.617 -1.439
N10 1.782 0.644 -0.368
H11 2.737 0.427 -0.109
H12 1.600 1.470 -0.919
C13 0.782 -0.239 -0.012
O14 1.001 -1.300 0.617
H15 -2.077 1.718 0.279

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 N10 H11 H12 C13 O14 H15
C11.09461.09311.09532.55183.50942.77541.54202.17713.74854.56344.06662.51432.79292.7996
H21.09461.76981.78233.50774.35493.79432.18422.49593.97464.69834.34312.79012.90073.7880
H31.09311.76981.78952.81603.80492.59522.16163.06984.04764.72774.55152.69512.55523.1951
H41.09531.78231.78952.76223.78103.07342.18012.55114.59495.48564.73863.47293.86612.5616
C52.55183.50772.81602.76221.09521.09571.55522.17773.08743.98173.05482.51723.37871.0952
H63.50944.35493.80493.78101.09521.77852.20132.52682.80893.64182.55172.75763.76971.7825
H72.77543.79432.59523.07341.09571.77852.17613.07663.49454.22923.71102.74743.24491.7815
C81.54202.18422.16162.18011.55522.20132.17611.09802.44893.38702.60371.54012.46012.1906
H92.17712.49593.06982.55112.17772.52683.07661.09802.60493.59012.40932.15803.23112.5233
N103.74853.97464.04764.59493.08742.80893.49452.44892.60491.01281.01031.38092.31474.0578
H114.56344.69834.72775.48563.98173.64184.22923.38703.59011.01281.74322.06762.55364.9992
H124.06664.34314.55154.73863.05482.55173.71102.60372.40931.01031.74322.10133.22403.8751
C132.51432.79012.69513.47292.51722.75762.74741.54012.15801.38092.06762.10131.25263.4769
O142.79292.90072.55523.86613.37873.76973.24492.46013.23112.31472.55363.22401.25264.3243
H152.79963.78803.19512.56161.09521.78251.78152.19062.52334.05784.99923.87513.47694.3243

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 110.954 C1 C8 H9 109.962
C1 C8 C13 109.329 H2 C1 H3 107.998
H2 C1 H4 108.948 H2 C1 C8 110.727
H3 C1 H4 109.723 H3 C1 C8 109.044
H4 C1 C8 110.362 C5 C8 H9 109.109
C5 C8 C13 108.827 H6 C5 H7 108.538
H6 C5 C8 111.118 H6 C5 H15 108.933
H7 C5 C8 109.121 H7 C5 H15 108.806
C8 C5 H15 110.276 C8 C13 N10 113.829
C8 C13 O14 123.178 H9 C8 C13 108.616
N10 C13 O14 122.957 H11 N10 H12 119.006
H11 N10 C13 118.683 H12 N10 C13 122.228
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.495     -0.472
2 H 0.190     0.108
3 H 0.204     0.128
4 H 0.171     0.130
5 C -0.498     -0.345
6 H 0.174     0.078
7 H 0.196     0.109
8 C -0.375     0.153
9 H 0.191     0.007
10 N -0.784     -0.987
11 H 0.322     0.425
12 H 0.319     0.404
13 C 0.680     0.650
14 O -0.482     -0.481
15 H 0.187     0.094


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.359 2.998 -1.577 3.407
CHELPG        
AIM        
ESP 0.363 2.990 -1.566 3.395


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.883 3.927 -1.971
y 3.927 -39.995 0.196
z -1.971 0.196 -38.428
Traceless
 xyz
x 5.329 3.927 -1.971
y 3.927 -3.840 0.196
z -1.971 0.196 -1.489
Polar
3z2-r2-2.978
x2-y26.113
xy3.927
xz-1.971
yz0.196


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.398 0.291 0.036
y 0.291 7.262 -0.770
z 0.036 -0.770 5.572


<r2> (average value of r2) Å2
<r2> 175.138
(<r2>)1/2 13.234