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: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-303.624671
Energy at 298.15K-303.634419
HF Energy-303.624671
Nuclear repulsion energy246.799649
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 PBEPBEultrafine/TZVP
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 3523 3483 11.32      
2 A 3082 3047 4.30      
3 A 3024 2989 5.80      
4 A 2944 2910 1.78      
5 A 1712 1693 236.49      
6 A 1485 1468 25.47      
7 A 1448 1431 0.09      
8 A 1432 1415 3.49      
9 A 1391 1375 17.75      
10 A 1164 1151 0.55      
11 A 1144 1131 3.26      
12 A 1107 1095 6.00      
13 A 896 885 3.30      
14 A 505 500 26.20      
15 A 385 381 49.86      
16 A 222 219 3.20      
17 A 164 162 0.08      
18 A 69 68 0.32      
19 B 3518 3478 6.79      
20 B 3082 3047 1.05      
21 B 3024 2989 56.35      
22 B 2942 2909 145.92      
23 B 1517 1500 283.50      
24 B 1458 1442 13.30      
25 B 1438 1422 97.44      
26 B 1396 1380 6.30      
27 B 1216 1202 235.28      
28 B 1116 1103 20.05      
29 B 1102 1090 16.21      
30 B 1026 1014 0.99      
31 B 730 722 2.87      
32 B 699 691 22.99      
33 B 477 471 127.40      
34 B 322 319 44.74      
35 B 118 117 11.41      
36 B 75 74 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 25475.4 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 25185.0 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 PBEPBEultrafine/TZVP
ABC
0.32313 0.07137 0.05995

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.106
O2 0.000 0.000 1.337
N3 0.000 1.164 -0.653
N4 0.000 -1.164 -0.653
C5 -0.222 2.445 -0.002
C6 0.222 -2.445 -0.002
H7 -0.321 1.085 -1.614
H8 0.321 -1.085 -1.614
H9 0.248 3.246 -0.590
H10 -0.248 -3.246 -0.590
H11 0.242 2.408 0.990
H12 -0.242 -2.408 0.990
H13 -1.293 2.679 0.133
H14 1.293 -2.679 0.133

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.23121.38941.38942.45762.45762.05862.05863.32863.32862.57692.57692.97502.9750
O21.23122.30542.30542.79682.79683.16043.16043.78273.78272.44542.44543.20933.2093
N31.38942.30542.32791.45403.67401.01612.46682.09744.41702.07513.93942.14134.1302
N41.38942.30542.32793.67401.45402.46681.01614.41702.09743.93942.07514.13022.1413
C52.45762.79681.45403.67404.91052.11083.91861.09885.72111.09624.95401.10425.3454
C62.45762.79683.67401.45404.91053.91862.11085.72111.09884.95401.09625.34541.1042
H72.05863.16041.01612.46682.11083.91862.26362.45774.45082.97444.35782.55644.4528
H82.05863.16042.46681.01613.91862.11082.26364.45082.45774.35782.97444.45282.5564
H93.32863.78272.09744.41701.09885.72112.45774.45086.51031.78785.89101.79426.0594
H103.32863.78274.41702.09745.72111.09884.45082.45776.51035.89101.78786.05941.7942
H112.57692.44542.07513.93941.09624.95402.97444.35781.78785.89104.84121.77885.2652
H122.57692.44543.93942.07514.95401.09624.35782.97445.89101.78784.84125.26521.7788
H132.97503.20932.14134.13021.10425.34542.55644.45281.79426.05941.77885.26525.9497
H142.97503.20934.13022.14135.34541.10424.45282.55646.05941.79425.26521.77885.9497

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 119.591 C1 N3 H7 116.837
C1 N4 C6 119.591 C1 N4 H8 116.837
O2 C1 N3 123.101 O2 C1 N4 123.101
N3 C1 N4 113.797 N3 C5 H9 109.708
N3 C5 H11 108.101 N3 C5 H13 112.943
N4 C6 H10 109.708 N4 C6 H12 108.101
N4 C6 H14 112.943 C5 N3 H7 116.292
C6 N4 H8 116.292 H9 C5 H11 109.071
H9 C5 H13 109.056 H10 C6 H12 109.071
H10 C6 H14 109.056 H11 C5 H13 107.881
H12 C6 H14 107.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.219      
2 O -0.362      
3 N -0.265      
4 N -0.265      
5 C -0.296      
6 C -0.296      
7 H 0.214      
8 H 0.214      
9 H 0.128      
10 H 0.128      
11 H 0.163      
12 H 0.163      
13 H 0.128      
14 H 0.128      


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 -3.756 3.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.392 -1.632 0.000
y -1.632 -30.803 0.000
z 0.000 0.000 -37.575
Traceless
 xyz
x -4.203 -1.632 0.000
y -1.632 7.180 0.000
z 0.000 0.000 -2.977
Polar
3z2-r2-5.955
x2-y2-7.588
xy-1.632
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.446 -0.575 0.000
y -0.575 11.219 0.000
z 0.000 0.000 8.300


<r2> (average value of r2) Å2
<r2> 194.941
(<r2>)1/2 13.962