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

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-303.779613
Energy at 298.15K-303.789933
Nuclear repulsion energy245.235246
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 B1B95/6-31G(2df,p)
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 3734 3576 32.73      
2 A 3675 3519 33.16      
3 A 3612 3459 20.57      
4 A 3156 3023 17.61      
5 A 3141 3008 23.51      
6 A 3060 2931 16.94      
7 A 3040 2912 25.80      
8 A 2998 2872 45.02      
9 A 1838 1761 461.66      
10 A 1616 1548 161.02      
11 A 1530 1465 3.40      
12 A 1499 1435 2.40      
13 A 1486 1423 6.18      
14 A 1456 1394 213.22      
15 A 1445 1384 58.88      
16 A 1403 1344 10.62      
17 A 1353 1296 16.73      
18 A 1298 1243 0.62      
19 A 1215 1164 19.47      
20 A 1169 1120 1.14      
21 A 1127 1079 17.29      
22 A 1072 1027 14.36      
23 A 1003 961 1.64      
24 A 901 863 2.32      
25 A 819 784 0.55      
26 A 784 751 45.78      
27 A 583 558 49.08      
28 A 554 530 48.52      
29 A 540 517 86.02      
30 A 474 454 25.46      
31 A 377 361 93.25      
32 A 354 339 1.81      
33 A 265 254 3.53      
34 A 191 183 3.26      
35 A 100 96 5.92      
36 A 57 55 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 26463.3 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 25343.9 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 B1B95/6-31G(2df,p)
ABC
0.28645 0.06782 0.05630

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.600 -0.229 0.067
H2 -2.625 -0.920 0.914
H3 -3.418 0.481 0.187
H4 -2.775 -0.800 -0.847
C5 -1.268 0.496 0.003
H6 -1.294 1.213 -0.829
H7 -1.115 1.078 0.921
N8 -0.189 -0.446 -0.183
H9 -0.399 -1.427 -0.113
N10 1.449 1.168 0.085
H11 2.434 1.342 -0.014
H12 0.857 1.832 -0.385
C13 1.143 -0.177 -0.016
O14 1.984 -1.049 0.066

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.09281.09071.09251.51722.14182.15462.43292.51164.28255.27424.04963.74394.6559
H21.09281.76691.77162.16183.05902.50482.71282.50284.65185.61924.62413.95154.6876
H31.09071.76691.76772.15782.46542.49023.37993.58424.91615.91914.51964.61315.6158
H41.09251.77161.76772.16202.49923.06782.69342.56494.75225.69444.50924.05394.8522
C51.51722.16182.15782.16201.09911.09721.44452.11342.80003.79832.54012.50353.6008
H62.14183.05902.46542.49921.09911.76392.09572.87832.89163.81912.28202.92134.0821
H72.15462.50482.49023.06781.09721.76392.09722.80302.69753.67962.48172.74773.8543
N82.43292.71283.37992.69341.44452.09572.09721.00552.31523.17982.51521.36962.2687
H92.51162.50283.58422.56492.11342.87832.80301.00553.19183.96343.50341.98792.4193
N104.28254.65184.91614.75222.80002.89162.69752.31523.19181.00611.00621.38252.2807
H115.27425.61925.91915.69443.79833.81913.67963.17983.96341.00611.69331.99362.4347
H124.04964.62414.51964.50922.54012.28202.48172.51523.50341.00621.69332.06243.1264
C133.74393.95154.61314.05392.50352.92132.74771.36961.98791.38251.99362.06241.2142
O144.65594.68765.61584.85223.60084.08213.85432.26872.41932.28072.43473.12641.2142

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 108.843 C1 C5 H7 109.958
C1 C5 N8 110.435 H2 C1 H3 108.040
H2 C1 H4 108.334 H2 C1 C5 110.801
H3 C1 H4 108.133 H3 C1 C5 110.603
H4 C1 C5 110.828 C5 N8 H9 118.111
C5 N8 C13 125.632 H6 C5 H7 106.857
H6 C5 N8 110.216 H7 C5 N8 110.454
N8 C13 N10 114.537 N8 C13 O14 122.700
H9 N8 C13 112.748 N10 C13 O14 122.743
H11 N10 H12 114.591 H11 N10 C13 112.200
H12 N10 C13 118.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.429      
2 H 0.142      
3 H 0.140      
4 H 0.142      
5 C -0.137      
6 H 0.114      
7 H 0.131      
8 N -0.372      
9 H 0.262      
10 N -0.588      
11 H 0.273      
12 H 0.261      
13 C 0.476      
14 O -0.416      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.048 2.496 -0.668 3.996
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.588 6.708 -1.316
y 6.708 -34.265 -1.473
z -1.316 -1.473 -37.179
Traceless
 xyz
x -1.866 6.708 -1.316
y 6.708 3.119 -1.473
z -1.316 -1.473 -1.253
Polar
3z2-r2-2.506
x2-y2-3.323
xy6.708
xz-1.316
yz-1.473


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.391 -0.100 0.158
y -0.100 7.660 -0.080
z 0.158 -0.080 5.342


<r2> (average value of r2) Å2
<r2> 200.073
(<r2>)1/2 14.145