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All results from a given calculation for C4H7NO (Methacrylamide)

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-283.270477
Energy at 298.15K-283.278970
Nuclear repulsion energy229.987620
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/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 3919 3549 51.18      
2 A 3787 3430 50.75      
3 A 3400 3079 11.70      
4 A 3328 3014 5.43      
5 A 3291 2980 9.79      
6 A 3265 2957 15.60      
7 A 3209 2906 16.06      
8 A 1902 1723 218.67      
9 A 1851 1677 120.78      
10 A 1808 1637 96.31      
11 A 1664 1506 18.19      
12 A 1651 1496 9.85      
13 A 1609 1457 6.60      
14 A 1581 1431 9.90      
15 A 1476 1337 139.84      
16 A 1354 1226 89.00      
17 A 1211 1097 4.97      
18 A 1200 1087 7.51      
19 A 1149 1040 11.73      
20 A 1129 1022 44.02      
21 A 1012 916 4.09      
22 A 931 843 80.00      
23 A 782 708 14.02      
24 A 756 684 77.35      
25 A 652 590 126.62      
26 A 625 566 13.07      
27 A 556 503 29.61      
28 A 548 496 117.16      
29 A 415 376 4.90      
30 A 364 330 5.65      
31 A 297 269 12.05      
32 A 169 153 0.08      
33 A 77 69 7.82      

Unscaled Zero Point Vibrational Energy (zpe) 25482.3 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 23076.8 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/3-21G
ABC
0.17562 0.11470 0.07302

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.677 0.717 0.246
H2 -2.638 0.453 0.194
H3 -1.447 1.610 0.617
C4 1.666 -0.899 0.230
H5 1.512 -1.340 1.209
H6 1.499 -1.676 -0.504
H7 2.688 -0.551 0.161
C8 1.046 1.474 -0.237
H9 0.335 2.244 -0.463
H10 2.077 1.769 -0.244
C11 -0.742 -0.222 -0.037
O12 -1.032 -1.376 -0.301
C13 0.690 0.227 -0.003

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 H10 C11 O12 C13
N10.99740.99343.71403.91604.04744.54632.86732.62343.92981.35582.25812.4308
H20.99741.71254.51174.63364.70495.41953.84673.53194.91472.02612.48433.3417
H30.99341.71254.01764.22054.55394.68792.63922.17863.63212.06933.15152.6207
C43.71404.51174.01761.08471.08211.08172.49733.48402.74112.51572.79081.5083
H53.91604.63364.22051.08471.74631.76223.19854.12733.47832.80812.95882.1449
H64.04744.70494.55391.08211.74631.76703.19394.09023.50302.71182.55662.1276
H74.54635.41954.68791.08171.76221.76702.63693.70672.43233.45083.83792.1496
C82.86733.84672.63922.49733.19853.19392.63691.07271.07282.47213.52761.3180
H92.62343.53192.17863.48404.12734.09023.70671.07271.81992.72433.87322.0999
H103.92984.91473.63212.74113.47833.50302.43231.07281.81993.45724.42282.0880
C111.35582.02612.06932.51572.80812.71183.45082.47212.72433.45721.21901.5011
O122.25812.48433.15152.79082.95882.55663.83793.52763.87324.42281.21902.3715
C132.43083.34172.62071.50832.14492.12762.14961.31802.09992.08801.50112.3715

picture of Methacrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 H11 H12 122.479 C1 H11 H13 116.519
C2 C1 C3 118.681 C2 C1 H11 118.051
C3 C1 H11 122.740 C4 H13 H8 124.028
C4 H13 H11 113.432 O5 C4 N6 107.395
O5 C4 H7 108.863 O5 C4 H13 110.559
N6 C4 H7 109.492 N6 C4 H13 109.333
H7 C4 H13 111.118 H8 H13 H11 122.417
H9 H8 H10 116.036 H9 H8 H13 122.565
H10 H8 H13 121.368 H12 H11 H13 121.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.945 -1.107   -1.137
2 H 0.362 0.453   0.461
3 H 0.358 0.433   0.447
4 C -0.578 -0.118   -0.277
5 H 0.224 0.052   0.094
6 H 0.254 0.065   0.108
7 H 0.204 0.060   0.106
8 C -0.397 -0.435   -0.511
9 H 0.213 0.171   0.196
10 H 0.229 0.204   0.233
11 C 0.884 0.964   0.979
12 O -0.634 -0.645   -0.644
13 C -0.174 -0.097   -0.054


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.402 3.612 1.106 3.799
CHELPG 0.420 3.637 1.094 3.821
AIM        
ESP 0.431 3.607 1.098 3.795


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.221 -4.736 -1.640
y -4.736 -37.340 -0.562
z -1.640 -0.562 -37.990
Traceless
 xyz
x 6.444 -4.736 -1.640
y -4.736 -2.734 -0.562
z -1.640 -0.562 -3.710
Polar
3z2-r2-7.420
x2-y26.119
xy-4.736
xz-1.640
yz-0.562


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.782 0.564 -0.093
y 0.564 8.709 -0.224
z -0.093 -0.224 3.337


<r2> (average value of r2) Å2
<r2> 162.380
(<r2>)1/2 12.743