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 CH5N3 (Guanidine)

using model chemistry: BLYP/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 BLYP/3-21G
 hartrees
Energy at 0K-204.145347
Energy at 298.15K-204.152698
HF Energy-204.145347
Nuclear repulsion energy121.899152
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 BLYP/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 3517 3497 6.62      
2 A 3491 3472 8.74      
3 A 3389 3370 1.57      
4 A 3366 3348 3.34      
5 A 3203 3185 27.92      
6 A 1668 1659 114.91      
7 A 1628 1619 98.51      
8 A 1614 1605 56.42      
9 A 1382 1375 148.61      
10 A 1143 1137 16.89      
11 A 1109 1103 113.45      
12 A 1055 1049 38.89      
13 A 891 886 6.24      
14 A 767 763 33.50      
15 A 692 689 153.96      
16 A 573 570 234.50      
17 A 514 512 10.66      
18 A 459 456 113.87      
19 A 446 444 134.22      
20 A 386 384 10.00      
21 A 362 360 119.29      

Unscaled Zero Point Vibrational Energy (zpe) 15827.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 15739.9 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 BLYP/3-21G
ABC
0.34090 0.32844 0.16931

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.128 0.002
N2 -0.039 1.430 0.020
N3 -1.088 -0.786 0.045
N4 1.231 -0.537 -0.067
H5 -1.006 1.806 -0.097
H6 -2.035 -0.405 0.087
H7 -0.979 -1.676 -0.449
H8 2.024 0.113 -0.084
H9 1.349 -1.353 0.545

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7 H8 H9
C11.30181.41131.41291.95192.09322.09582.03872.0849
N21.30182.45102.34321.04422.71243.27882.44963.1542
N31.41132.45102.33512.59641.02171.02473.24112.5518
N41.41292.34322.33513.23993.27292.51571.02501.0268
H51.95191.04422.59643.23992.44583.49993.47083.9926
H62.09322.71241.02173.27292.44581.73744.09553.5446
H72.09583.27881.02472.51573.49991.73743.51422.5519
H82.03872.44963.24111.02503.47084.09553.51421.7319
H92.08493.15422.55181.02683.99263.54462.55191.7319

picture of Guanidine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 112.139 C1 N3 H6 117.815
C1 N3 H7 117.842 C1 N4 H8 112.519
C1 N4 H9 116.535 N2 C1 N3 129.169
N2 C1 N4 119.285 N3 C1 N4 111.546
H6 N3 H7 116.206 H8 N4 H9 115.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.620      
2 N -0.584      
3 N -0.684      
4 N -0.667      
5 H 0.203      
6 H 0.275      
7 H 0.280      
8 H 0.288      
9 H 0.269      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.298 -2.507 0.038 2.823
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.088 -1.875 2.287
y -1.875 -24.820 -0.421
z 2.287 -0.421 -25.958
Traceless
 xyz
x 8.301 -1.875 2.287
y -1.875 -3.297 -0.421
z 2.287 -0.421 -5.004
Polar
3z2-r2-10.008
x2-y27.732
xy-1.875
xz2.287
yz-0.421


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.150 -0.359 -0.009
y -0.359 5.791 -0.062
z -0.009 -0.062 1.581


<r2> (average value of r2) Å2
<r2> 74.464
(<r2>)1/2 8.629