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 NH(CH3)CONH(CH3) (Urea, N,N'-dimethyl-)

using model chemistry: TPSSh/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-303.939010
Energy at 298.15K-303.948901
HF Energy-303.939010
Nuclear repulsion energy247.198212
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 TPSSh/aug-cc-pVDZ
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 3573 3456 10.85      
2 A 3153 3050 10.37      
3 A 3096 2995 8.97      
4 A 3012 2914 4.36      
5 A 1735 1678 255.98      
6 A 1519 1470 17.08      
7 A 1484 1435 0.46      
8 A 1467 1419 5.36      
9 A 1430 1383 11.13      
10 A 1187 1148 0.00      
11 A 1166 1128 2.37      
12 A 1130 1093 7.54      
13 A 912 882 1.99      
14 A 518 501 40.69      
15 A 400 386 45.35      
16 A 217 210 3.85      
17 A 178 172 0.06      
18 A 82 80 0.39      
19 B 3570 3453 5.58      
20 B 3152 3049 3.98      
21 B 3097 2995 62.90      
22 B 3011 2913 145.34      
23 B 1557 1506 325.32      
24 B 1498 1449 11.01      
25 B 1477 1428 76.44      
26 B 1434 1387 8.70      
27 B 1248 1207 228.32      
28 B 1144 1106 27.39      
29 B 1129 1092 8.71      
30 B 1038 1004 1.68      
31 B 748 723 4.78      
32 B 713 690 26.69      
33 B 480 464 110.20      
34 B 313 303 41.61      
35 B 119 115 10.54      
36 B 90 87 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 26037.8 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 25186.4 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 TPSSh/aug-cc-pVDZ
ABC
0.32488 0.07174 0.06031

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.093
O2 0.000 0.000 1.324
N3 0.000 1.165 -0.659
N4 0.000 -1.165 -0.659
C5 -0.247 2.436 0.013
C6 0.247 -2.436 0.013
H7 -0.351 1.085 -1.607
H8 0.351 -1.085 -1.607
H9 0.100 3.251 -0.633
H10 -0.100 -3.251 -0.633
H11 0.323 2.444 0.947
H12 -0.323 -2.444 0.947
H13 -1.312 2.587 0.254
H14 1.312 -2.587 0.254

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.23121.38641.38642.44942.44942.04662.04663.33263.33262.60872.60872.90522.9052
O21.23122.29992.29992.77692.77693.14473.14473.79613.79612.49352.49353.09173.0917
N31.38642.29992.32961.45873.67091.01342.46652.08884.41702.07853.96302.13964.0782
N41.38642.29992.32963.67091.45872.46651.01344.41702.08883.96302.07854.07822.1396
C52.44942.77691.45873.67094.89612.11123.92141.09685.72521.09424.96841.10205.2646
C62.44942.77693.67091.45874.89613.92142.11125.72521.09684.96841.09425.26461.1020
H72.04663.14471.01342.46652.11123.92142.28122.41674.45132.97004.35612.57714.4400
H82.04663.14472.46651.01343.92142.11122.28124.45132.41674.35612.97004.44002.5771
H93.33263.79612.08884.41701.09685.72522.41674.45136.50521.78885.92501.79436.0285
H103.33263.79614.41702.08885.72521.09684.45132.41676.50525.92501.78886.02851.7943
H112.60872.49352.07853.96301.09424.96842.97004.35611.78885.92504.92971.78115.1737
H122.60872.49353.96302.07854.96841.09424.35612.97005.92501.78884.92975.17371.7811
H132.90523.09172.13964.07821.10205.26462.57714.44001.79436.02851.78115.17375.8014
H142.90523.09174.07822.13965.26461.10204.44002.57716.02851.79435.17371.78115.8014

picture of Urea, N,N'-dimethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C5 118.814 C1 N3 H7 116.178
C1 N4 C6 118.814 C1 N4 H8 116.178
O2 C1 N3 122.845 O2 C1 N4 122.845
N3 C1 N4 114.311 N3 C5 H9 108.823
N3 C5 H11 108.158 N3 C5 H13 112.599
N4 C6 H10 108.823 N4 C6 H12 108.158
N4 C6 H14 112.599 C5 N3 H7 116.140
C6 N4 H8 116.140 H9 C5 H11 109.460
H9 C5 H13 109.381 H10 C6 H12 109.460
H10 C6 H14 109.381 H11 C5 H13 108.376
H12 C6 H14 108.376
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.757      
2 O -0.559      
3 N -0.208      
4 N -0.208      
5 C 0.740      
6 C 0.740      
7 H -0.142      
8 H -0.142      
9 H -0.236      
10 H -0.236      
11 H -0.138      
12 H -0.138      
13 H -0.115      
14 H -0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.668 3.668
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.020 -0.530 0.000
y -0.530 11.744 0.000
z 0.000 0.000 8.929


<r2> (average value of r2) Å2
<r2> 193.865
(<r2>)1/2 13.924