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All results from a given calculation for NH2CONHC2H5 (Urea, ethyl-)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-56.218519
Energy at 298.15K-56.229314
Nuclear repulsion energy137.410362
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 HF/CEP-121G*
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 3919 3540 28.58      
2 A 3843 3472 27.54      
3 A 3804 3436 28.48      
4 A 3270 2954 58.96      
5 A 3259 2944 80.79      
6 A 3222 2911 26.74      
7 A 3193 2884 32.89      
8 A 3185 2878 51.41      
9 A 1921 1735 690.96      
10 A 1800 1626 179.05      
11 A 1667 1506 4.16      
12 A 1634 1476 2.19      
13 A 1625 1468 4.29      
14 A 1612 1457 19.90      
15 A 1554 1404 2.99      
16 A 1534 1385 312.49      
17 A 1487 1344 51.05      
18 A 1414 1277 6.77      
19 A 1290 1166 14.78      
20 A 1259 1137 4.54      
21 A 1229 1110 66.04      
22 A 1146 1035 14.61      
23 A 1046 945 3.90      
24 A 957 865 2.77      
25 A 879 794 23.17      
26 A 862 779 81.56      
27 A 664 600 54.53      
28 A 630 569 154.14      
29 A 598 540 63.46      
30 A 532 481 64.60      
31 A 431 389 88.59      
32 A 381 344 0.46      
33 A 285 257 2.39      
34 A 211 191 2.64      
35 A 117 106 9.26      
36 A 65 59 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 28260.9 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 25530.9 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 HF/CEP-121G*
ABC
0.28712 0.06693 0.05584

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.599 -0.188 -0.011
H2 -2.689 -1.029 0.672
H3 -3.395 0.514 0.218
H4 -2.744 -0.552 -1.024
C5 -1.237 0.494 0.134
H6 -1.198 1.347 -0.540
H7 -1.114 0.873 1.146
N8 -0.172 -0.448 -0.210
H9 -0.378 -1.415 -0.073
N10 1.536 1.128 0.052
H11 2.521 1.253 -0.045
H12 0.990 1.792 -0.453
C13 1.169 -0.205 -0.024
O14 1.976 -1.098 0.083

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.08771.08601.08631.53022.14412.16132.44962.53814.33975.31954.12333.76814.6659
H21.08771.75691.76342.17263.05592.51512.73042.45864.78435.73354.77164.00624.7030
H31.08601.75691.76192.16002.46892.48893.39153.59304.97205.96854.61734.62695.6098
H41.08631.76341.76192.16942.49553.06592.70032.69224.72195.65174.44604.05364.8791
C51.53022.17262.16002.16941.08731.08831.46342.10372.84553.83842.64402.51053.5864
H62.14413.05592.46892.49551.08731.75382.09392.91862.80603.75382.23522.87714.0547
H72.16132.51512.48893.06591.08831.75382.11522.69512.87833.84422.79852.78283.8164
N82.44962.73043.39152.70031.46342.09392.11520.99832.33823.18942.53561.37492.2629
H92.53812.45863.59302.69222.10372.91862.69510.99833.18523.94043.50801.96472.3808
N104.33974.78434.97204.72192.84552.80602.87832.33823.18520.99810.99711.38462.2690
H115.31955.73355.96855.65173.83843.75383.84423.18943.94040.99811.67411.98872.4164
H124.12334.77164.61734.44602.64402.23522.79852.53563.50800.99711.67412.05083.1004
C133.76814.00624.62694.05362.51052.87712.78281.37491.96471.38461.98872.05081.2084
O144.66594.70305.60984.87913.58644.05473.81642.26292.38082.26902.41643.10041.2084

picture of Urea, ethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 108.821 C1 C5 H7 110.117
C1 C5 N8 109.804 H2 C1 H3 107.852
H2 C1 H4 108.414 H2 C1 C5 111.051
H3 C1 H4 108.403 H3 C1 C5 110.147
H4 C1 C5 110.875 C5 N8 H9 116.146
C5 N8 C13 124.348 H6 C5 H7 107.443
H6 C5 N8 109.469 H7 C5 N8 111.127
N8 C13 N10 115.848 N8 C13 O14 122.188
H9 N8 C13 110.763 N10 C13 O14 121.958
H11 N10 H12 114.078 H11 N10 C13 112.143
H12 N10 C13 117.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.538      
2 H 0.165      
3 H 0.178      
4 H 0.175      
5 C -0.132      
6 H 0.136      
7 H 0.171      
8 N -0.458      
9 H 0.372      
10 N -0.704      
11 H 0.380      
12 H 0.362      
13 C 0.361      
14 O -0.470      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.264 2.992 -0.632 4.473
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.931 7.622 -2.132
y 7.622 -35.917 -2.134
z -2.132 -2.134 -38.330
Traceless
 xyz
x -1.807 7.622 -2.132
y 7.622 2.713 -2.134
z -2.132 -2.134 -0.906
Polar
3z2-r2-1.812
x2-y2-3.014
xy7.622
xz-2.132
yz-2.134


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.445 -0.285 0.102
y -0.285 7.221 -0.056
z 0.102 -0.056 5.499


<r2> (average value of r2) Å2
<r2> 164.581
(<r2>)1/2 12.829