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All results from a given calculation for C4H7NO (Methacrylamide)

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-284.929551
Energy at 298.15K-284.937638
Nuclear repulsion energy228.131109
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 3695 3551 33.35      
2 A 3562 3424 31.49      
3 A 3244 3118 11.19      
4 A 3163 3041 5.13      
5 A 3161 3038 7.33      
6 A 3124 3003 9.27      
7 A 3059 2941 11.19      
8 A 1744 1677 144.52      
9 A 1712 1646 80.76      
10 A 1662 1598 75.54      
11 A 1550 1490 22.26      
12 A 1529 1470 14.14      
13 A 1489 1431 8.89      
14 A 1448 1391 24.33      
15 A 1379 1326 103.24      
16 A 1262 1213 52.95      
17 A 1109 1066 2.35      
18 A 1102 1060 4.08      
19 A 1054 1013 4.85      
20 A 970 932 41.69      
21 A 954 917 14.43      
22 A 845 813 43.79      
23 A 736 707 5.37      
24 A 694 667 51.08      
25 A 606 582 55.30      
26 A 575 553 3.57      
27 A 529 508 120.90      
28 A 507 487 75.02      
29 A 380 365 3.99      
30 A 326 313 7.62      
31 A 274 263 11.99      
32 A 143 138 0.40      
33 A 80 77 6.77      

Unscaled Zero Point Vibrational Energy (zpe) 23833.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 22908.6 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
0.17147 0.11379 0.07230

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)
N1 -1.657 0.760 0.261
H2 -2.642 0.526 0.215
H3 -1.380 1.652 0.646
C4 1.647 -0.928 0.243
H5 1.561 -1.286 1.278
H6 1.363 -1.760 -0.410
H7 2.683 -0.636 0.052
C8 1.082 1.467 -0.254
H9 0.373 2.251 -0.505
H10 2.132 1.745 -0.261
C11 -0.747 -0.214 -0.037
O12 -1.071 -1.380 -0.319
C13 0.697 0.214 0.000

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 H10 C11 O12 C13
N11.01321.01063.71013.94683.99004.56392.87522.63253.94971.36592.29322.4305
H21.01321.74524.52844.69884.65335.45263.86933.54704.95002.04972.52683.3602
H31.01061.74523.99804.20554.50394.70122.62802.18083.62892.08613.19722.6080
C43.71014.52843.99801.09821.09531.09342.51073.50562.76332.51372.81191.5048
H53.94684.69884.20551.09821.76411.78413.18684.13533.44712.86463.08002.1511
H63.99004.65334.50391.09531.76411.79463.24374.13303.59202.64202.46502.1232
H74.56395.45264.70121.09341.78411.79462.66123.73952.46423.45723.84512.1609
C82.87523.86932.62802.51073.18683.24372.66121.08641.08632.49403.57041.3359
H92.63253.54702.18083.50564.13534.13303.73951.08641.84672.74803.91232.1241
H103.94974.95003.62892.76333.44713.59202.46421.08631.84673.48994.47562.1151
C111.36592.04972.08612.51372.86462.64203.45722.49402.74803.48991.24231.5066
O122.29322.52683.19722.81193.08002.46503.84513.57043.91234.47561.24232.4017
C132.43053.36022.60801.50482.15112.12322.16091.33592.12412.11511.50662.4017

picture of Methacrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 H11 H12 123.023 C1 H11 H13 115.499
C2 C1 C3 119.162 C2 C1 H11 118.221
C3 C1 H11 122.043 C4 H13 H8 124.112
C4 H13 H11 113.174 O5 C4 N6 107.074
O5 C4 H7 108.993 O5 C4 H13 110.490
N6 C4 H7 110.155 N6 C4 H13 108.465
H7 C4 H13 111.563 H8 H13 H11 122.548
H9 H8 H10 116.417 H9 H8 H13 122.207
H10 H8 H13 121.325 H12 H11 H13 121.477
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 N -0.798      
2 H 0.337      
3 H 0.334      
4 C -0.643      
5 H 0.232      
6 H 0.258      
7 H 0.212      
8 C -0.421      
9 H 0.201      
10 H 0.218      
11 C 0.654      
12 O -0.511      
13 C -0.074      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.032 3.210 1.146 3.408
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.247 -4.838 -1.619
y -4.838 -36.025 -0.361
z -1.619 -0.361 -37.433
Traceless
 xyz
x 6.483 -4.838 -1.619
y -4.838 -2.185 -0.361
z -1.619 -0.361 -4.298
Polar
3z2-r2-8.595
x2-y25.779
xy-4.838
xz-1.619
yz-0.361


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> 163.429
(<r2>)1/2 12.784