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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP3/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 MP3/TZVP
 hartrees
Energy at 0K-132.354063
Energy at 298.15K-132.356215
HF Energy-131.898240
Nuclear repulsion energy59.468069
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 MP3/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' 3623 3388 19.55      
2 A' 3550 3320 82.95      
3 A' 2301 2152 94.41      
4 A' 1676 1568 35.13      
5 A' 1082 1012 12.93      
6 A' 732 685 238.56      
7 A' 537 502 88.03      
8 A' 416 389 10.71      
9 A" 3714 3473 30.19      
10 A" 1233 1153 0.40      
11 A" 661 618 43.11      
12 A" 312 292 5.57      

Unscaled Zero Point Vibrational Energy (zpe) 9918.7 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 9276.0 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 MP3/TZVP
ABC
10.13131 0.31168 0.30537

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.076 1.362 0.000
C2 0.000 0.164 0.000
N3 0.030 -1.197 0.000
H4 0.078 2.421 0.000
H5 -0.372 -1.600 0.831
H6 -0.372 -1.600 -0.831

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20042.56021.05903.10903.1090
C21.20041.36212.25841.98531.9853
N32.56021.36213.61911.00701.0070
H41.05902.25843.61914.13084.1308
H53.10901.98531.00704.13081.6613
H63.10901.98531.00704.13081.6613

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.111 C2 C1 H4 176.510
C2 N3 H5 113.001 C2 N3 H6 113.001
H5 N3 H6 111.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability