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

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-57.571800
Energy at 298.15K-57.582162
Nuclear repulsion energy135.411132
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 B3LYP/CEP-31G*
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 3678 3552 24.51      
2 A 3600 3477 21.81      
3 A 3560 3438 15.40      
4 A 3128 3021 43.95      
5 A 3118 3011 58.19      
6 A 3053 2948 43.26      
7 A 3048 2944 21.95      
8 A 3021 2917 53.06      
9 A 1782 1721 512.61      
10 A 1635 1579 147.99      
11 A 1524 1472 2.16      
12 A 1499 1448 5.05      
13 A 1494 1443 7.24      
14 A 1452 1402 21.20      
15 A 1420 1372 43.61      
16 A 1412 1363 225.83      
17 A 1349 1303 34.91      
18 A 1292 1248 6.22      
19 A 1182 1142 18.51      
20 A 1147 1107 2.82      
21 A 1119 1080 39.70      
22 A 1055 1018 14.27      
23 A 977 944 1.79      
24 A 885 855 2.26      
25 A 804 776 1.53      
26 A 761 735 61.69      
27 A 603 583 73.52      
28 A 578 558 138.32      
29 A 542 524 42.37      
30 A 491 475 58.32      
31 A 392 378 85.84      
32 A 352 340 0.22      
33 A 271 262 2.37      
34 A 193 187 2.39      
35 A 113 109 8.84      
36 A 73 71 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 26301.5 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 25399.4 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 B3LYP/CEP-31G*
ABC
0.27790 0.06536 0.05443

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.626 -0.195 -0.011
H2 -2.714 -1.049 0.684
H3 -3.436 0.517 0.223
H4 -2.774 -0.566 -1.040
C5 -1.251 0.492 0.131
H6 -1.209 1.353 -0.563
H7 -1.123 0.889 1.157
N8 -0.175 -0.462 -0.209
H9 -0.381 -1.447 -0.048
N10 1.532 1.156 0.059
H11 2.534 1.292 -0.063
H12 0.957 1.823 -0.454
C13 1.183 -0.205 -0.025
O14 2.023 -1.108 0.079

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.10511.10321.10361.54392.17022.19022.47372.57154.37295.37074.13633.80964.7391
H21.10511.78481.79162.19643.09742.55182.75542.47834.82585.79554.79864.05084.7765
H31.10321.78481.79042.18722.50562.52173.43203.64235.01196.02734.63314.68205.6978
H41.10361.79161.79042.19352.52213.10922.73072.73654.76645.70844.46944.10144.9558
C51.54392.19642.18722.19351.10661.10691.47772.13342.86213.87372.64372.53703.6449
H62.17023.09742.50562.52211.10661.78302.11852.96532.81763.77692.21922.90514.1131
H72.19022.55182.52173.10921.10691.78302.14212.73172.88563.87662.79172.81323.8796
N82.47372.75543.43202.73071.47772.11852.14211.01942.36723.23052.56171.39452.3093
H92.57152.47833.64232.73652.13342.96532.73171.01943.23233.99993.55661.99742.4309
N104.37294.82585.01194.76642.86212.81762.88562.36723.23231.01871.01891.40762.3173
H115.37075.79556.02735.70843.87373.77693.87663.23053.99991.01871.70942.01662.4582
H124.13634.79864.63314.46942.64372.21922.79172.56173.55661.01891.70942.08513.1644
C133.80964.05084.68204.10142.53702.90512.81321.39451.99741.40762.01662.08511.2379
O144.73914.77655.69784.95583.64494.11313.87962.30932.43092.31732.45823.16441.2379

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 108.808 C1 C5 H7 110.339
C1 C5 N8 109.879 H2 C1 H3 107.848
H2 C1 H4 108.411 H2 C1 C5 110.932
H3 C1 H4 108.445 H3 C1 C5 110.320
H4 C1 C5 110.789 C5 N8 H9 116.168
C5 N8 C13 124.057 H6 C5 H7 107.322
H6 C5 N8 109.283 H7 C5 N8 111.141
N8 C13 N10 115.297 N8 C13 O14 122.512
H9 N8 C13 110.716 N10 C13 O14 122.180
H11 N10 H12 114.049 H11 N10 C13 111.427
H12 N10 C13 117.576
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 H 0.140      
3 H 0.166      
4 H 0.155      
5 C -0.282      
6 H 0.126      
7 H 0.163      
8 N -0.120      
9 H 0.311      
10 N -0.404      
11 H 0.327      
12 H 0.296      
13 C -0.327      
14 O -0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.238 2.820 -0.622 4.339
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.232 7.338 -2.080
y 7.338 -35.051 -2.213
z -2.080 -2.213 -37.870
Traceless
 xyz
x -1.771 7.338 -2.080
y 7.338 2.999 -2.213
z -2.080 -2.213 -1.228
Polar
3z2-r2-2.456
x2-y2-3.180
xy7.338
xz-2.080
yz-2.213


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.435 -0.178 0.162
y -0.178 7.487 -0.040
z 0.162 -0.040 5.174


<r2> (average value of r2) Å2
<r2> 167.736
(<r2>)1/2 12.951