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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B1B95/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-132.671461
Energy at 298.15K-132.673599
HF Energy-132.671461
Nuclear repulsion energy59.761819
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/TZVP
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' 3587 3432 22.66      
2 A' 3512 3361 99.61      
3 A' 2275 2177 130.26      
4 A' 1647 1576 37.35      
5 A' 1107 1059 19.65      
6 A' 564 540 168.46      
7 A' 496 475 186.02      
8 A' 435 416 10.86      
9 A" 3679 3521 42.26      
10 A" 1194 1143 0.21      
11 A" 707 677 43.51      
12 A" 371 355 10.39      

Unscaled Zero Point Vibrational Energy (zpe) 9787.3 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 9365.5 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/TZVP
ABC
10.49119 0.31531 0.30826

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.026 1.359 0.000
C2 0.000 0.159 0.000
N3 0.094 -1.179 0.000
H4 -0.058 2.419 0.000
H5 -0.222 -1.639 0.838
H6 -0.222 -1.639 -0.838

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20042.54121.05963.11903.1190
C21.20041.34162.26001.99591.9959
N32.54121.34163.60081.00651.0065
H41.05962.26003.60084.14594.1459
H53.11901.99591.00654.14591.6755
H63.11901.99591.00654.14591.6755

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.217 C2 C1 H4 179.495
C2 N3 H5 115.685 C2 N3 H6 115.685
H5 N3 H6 112.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.472      
2 C 0.149      
3 N -0.336      
4 H 0.158      
5 H 0.250      
6 H 0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.046 -1.565 0.000 1.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.567 1.795 0.000
y 1.795 -12.083 0.000
z 0.000 0.000 -16.980
Traceless
 xyz
x -6.036 1.795 0.000
y 1.795 6.691 0.000
z 0.000 0.000 -0.655
Polar
3z2-r2-1.310
x2-y2-8.485
xy1.795
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.565 -0.057 0.000
y -0.057 6.896 0.000
z 0.000 0.000 2.698


<r2> (average value of r2) Å2
<r2> 44.094
(<r2>)1/2 6.640