return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H7NO (Methacrylamide)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-286.618164
Energy at 298.15K-286.626088
Nuclear repulsion energy229.418619
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 mPW1PW91/6-311G**
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 3767 3604 37.66      
2 A 3633 3476 36.44      
3 A 3247 3106 10.08      
4 A 3161 3024 7.03      
5 A 3158 3022 10.98      
6 A 3125 2990 11.38      
7 A 3059 2927 14.78      
8 A 1803 1725 299.09      
9 A 1718 1644 37.87      
10 A 1623 1553 120.77      
11 A 1494 1429 22.79      
12 A 1471 1408 11.72      
13 A 1446 1384 18.66      
14 A 1419 1358 20.66      
15 A 1390 1330 66.67      
16 A 1246 1192 45.90      
17 A 1105 1057 1.72      
18 A 1071 1025 0.54      
19 A 1021 977 5.72      
20 A 964 923 14.28      
21 A 956 915 28.33      
22 A 834 798 17.35      
23 A 756 724 5.05      
24 A 690 660 9.70      
25 A 582 557 14.05      
26 A 573 549 6.19      
27 A 510 488 3.30      
28 A 378 362 21.80      
29 A 344 329 171.92      
30 A 323 309 4.80      
31 A 264 253 16.62      
32 A 167 160 0.28      
33 A 76 73 3.77      

Unscaled Zero Point Vibrational Energy (zpe) 23688.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22662.4 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 mPW1PW91/6-311G**
ABC
0.17541 0.11283 0.07339

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.663 0.738 0.274
H2 -2.625 0.446 0.317
H3 -1.392 1.558 0.785
C4 1.664 -0.901 0.272
H5 1.516 -1.311 1.274
H6 1.488 -1.720 -0.428
H7 2.694 -0.557 0.181
C8 1.058 1.456 -0.283
H9 0.334 2.219 -0.544
H10 2.103 1.747 -0.301
C11 -0.746 -0.220 -0.042
O12 -1.063 -1.348 -0.360
C13 0.695 0.205 -0.002

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 H10 C11 O12 C13
N11.00571.00343.70833.91204.05774.54632.86942.61813.94101.36332.26112.4335
H21.00571.72474.49504.59884.70785.41413.86583.55544.94192.02572.47303.3440
H31.00341.72473.95534.11424.52894.64032.67482.27653.66442.06423.14052.6087
C43.70834.49503.95531.09361.09141.08992.49603.48822.74422.52302.83431.4951
H53.91204.59884.11421.09361.75071.77543.20854.14333.48982.83493.05322.1452
H64.05774.70784.52891.09141.75071.78233.20874.10683.52332.71842.57922.1253
H74.54635.41414.64031.08991.77541.78232.63533.71522.42713.46303.87722.1469
C82.86943.86582.67482.49603.20853.20872.63531.08371.08422.47403.51731.3327
H92.61813.55542.27653.48824.14334.10683.71521.08371.84652.71433.83592.1169
H103.94104.94193.66442.74423.48983.52332.42711.08421.84653.47084.42772.1088
C111.36332.02572.06422.52302.83492.71843.46302.47402.71433.47081.21461.5027
O122.26112.47303.14052.83433.05322.57923.87723.51733.83594.42771.21462.3734
C132.43353.34402.60871.49512.14522.12532.14691.33272.11692.10881.50272.3734

picture of Methacrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 H11 H12 122.485 C1 H11 H13 116.146
C2 C1 C3 118.286 C2 C1 H11 116.730
C3 C1 H11 120.672 C4 H13 H8 123.824
C4 H13 H11 114.621 O5 C4 N6 106.497
O5 C4 H7 108.806 O5 C4 H13 110.971
N6 C4 H7 109.588 N6 C4 H13 109.517
H7 C4 H13 111.337 H8 H13 H11 121.400
H9 H8 H10 116.800 H9 H8 H13 121.995
H10 H8 H13 121.157 H12 H11 H13 121.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.479      
2 H 0.237      
3 H 0.235      
4 C -0.277      
5 H 0.136      
6 H 0.158      
7 H 0.116      
8 C -0.166      
9 H 0.119      
10 H 0.122      
11 C 0.406      
12 O -0.374      
13 C -0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.264 3.000 1.498 3.363
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.996 -4.362 -2.393
y -4.362 -37.041 -0.255
z -2.393 -0.255 -37.133
Traceless
 xyz
x 6.091 -4.362 -2.393
y -4.362 -2.976 -0.255
z -2.393 -0.255 -3.115
Polar
3z2-r2-6.230
x2-y26.045
xy-4.362
xz-2.393
yz-0.255


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.651 0.345 -0.197
y 0.345 9.834 -0.220
z -0.197 -0.220 5.120


<r2> (average value of r2) Å2
<r2> 162.503
(<r2>)1/2 12.748