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All results from a given calculation for C2H6N2O (Urea, methyl-)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-262.053203
Energy at 298.15K-262.061264
HF Energy-261.542142
Nuclear repulsion energy180.440219
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 MP2/3-21G*
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 3696 3516 24.72      
2 A 3614 3438 31.33      
3 A 3567 3393 24.24      
4 A 3168 3014 16.75      
5 A 3114 2962 37.28      
6 A 3058 2910 40.45      
7 A 1771 1685 283.71      
8 A 1712 1629 99.02      
9 A 1632 1553 16.50      
10 A 1591 1514 4.80      
11 A 1540 1465 25.93      
12 A 1489 1416 1.68      
13 A 1397 1329 275.88      
14 A 1216 1157 3.55      
15 A 1201 1143 1.25      
16 A 1135 1080 39.69      
17 A 1078 1025 45.63      
18 A 871 829 4.27      
19 A 778 740 90.26      
20 A 597 568 101.52      
21 A 558 531 130.99      
22 A 537 511 8.63      
23 A 485 462 22.31      
24 A 364 346 195.21      
25 A 282 269 14.48      
26 A 139 133 6.33      
27 A 106 101 6.13      

Unscaled Zero Point Vibrational Energy (zpe) 20348.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 19357.2 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 MP2/3-21G*
ABC
0.32082 0.13568 0.09805

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.890 0.026 0.099
H2 -2.167 0.689 -0.730
H3 -2.684 -0.717 0.210
H4 -1.829 0.621 1.018
H5 -0.617 -1.697 -0.147
N6 -0.623 -0.684 -0.164
C7 0.639 -0.108 -0.023
H8 -0.137 1.808 -0.437
H9 1.515 1.736 0.061
N10 0.606 1.291 0.013
O11 1.692 -0.774 0.077

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.09781.09291.09602.15581.47612.53532.55603.81002.79993.6698
H21.09781.76901.78182.90442.14293.00162.33563.90822.93364.2051
H31.09291.76901.78102.31462.09493.38613.64374.86473.85964.3779
H41.09601.78181.78102.86302.13422.77612.52723.65232.71843.9021
H52.15582.90442.31462.86301.01292.02933.54954.04693.23342.4969
N61.47612.14292.09492.13421.01291.39422.55363.23702.33362.3288
C72.53533.00163.38612.77612.02931.39422.10872.04371.40081.2496
H82.55602.33563.64372.52723.54952.55362.10871.72681.01143.2060
H93.81003.90824.86473.65234.04693.23702.04371.72681.01242.5170
N102.79992.93363.85962.71843.23342.33361.40081.01141.01242.3344
O113.66984.20514.37793.90212.49692.32881.24963.20602.51702.3344

picture of Urea, methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N6 H5 118.851 C1 N6 C7 124.064
H2 C1 H3 107.702 H2 C1 H4 108.616
H2 C1 N6 111.882 H3 C1 H4 108.906
H3 C1 N6 108.342 H4 C1 N6 111.287
H5 N6 C7 113.993 N6 C7 N10 113.220
N6 C7 O11 123.399 C7 N10 H8 121.053
C7 N10 H9 114.803 H8 N10 H9 117.136
N10 C7 O11 123.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability