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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-132.399197
Energy at 298.15K-132.401582
HF Energy-131.866006
Nuclear repulsion energy59.525070
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 CCSD=FULL/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' 3611 3400 17.35      
2 A' 3562 3354 82.11      
3 A' 2291 2157 64.37      
4 A' 1681 1583 26.20      
5 A' 1083 1020 9.46      
6 A' 725 683 209.56      
7 A' 581 547 64.76      
8 A' 489 461 31.51      
9 A" 3701 3485 30.18      
10 A" 1240 1167 0.06      
11 A" 754 710 32.48      
12 A" 415 390 6.41      

Unscaled Zero Point Vibrational Energy (zpe) 10066.7 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 9478.8 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 CCSD=FULL/6-31G(2df,p)
ABC
10.10557 0.31236 0.30623

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.100 1.360 0.000
C2 0.000 0.162 0.000
N3 0.170 -1.184 0.000
H4 -0.182 2.415 0.000
H5 -0.203 -1.627 0.826
H6 -0.203 -1.627 -0.826

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20152.55831.05863.10013.1001
C21.20151.35732.26001.98081.9808
N32.55831.35733.61651.00831.0083
H41.05862.26003.61654.12524.1252
H53.10011.98081.00834.12521.6514
H63.10011.98081.00834.12521.6514

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.582 C2 C1 H4 179.703
C2 N3 H5 112.886 C2 N3 H6 112.886
H5 N3 H6 109.948
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability