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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP4=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-132.358267
Energy at 298.15K-132.360106
HF Energy-131.866571
Nuclear repulsion energy58.483034
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 MP4=FULL/aug-cc-pVDZ
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' 3510 3423        
2 A' 3469 3383        
3 A' 2153 2099        
4 A' 1627 1587        
5 A' 1042 1016        
6 A' 694 677        
7 A' 465 453        
8 A' 271 264        
9 A" 3608 3519        
10 A" 1203 1173        
11 A" 576 561        
12 A" 289 282        

Unscaled Zero Point Vibrational Energy (zpe) 9452.9 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 9218.4 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 MP4=FULL/aug-cc-pVDZ
ABC
9.87605 0.30102 0.29523

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.030 1.391 0.000
C2 0.000 0.159 0.000
N3 0.069 -1.216 0.000
H4 0.025 2.466 0.000
H5 -0.346 -1.628 0.834
H6 -0.346 -1.628 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.23312.60751.07453.15543.1554
C21.23311.37622.30742.00222.0022
N32.60751.37623.68201.01901.0190
H41.07452.30743.68204.19494.1949
H53.15542.00221.01904.19491.6682
H63.15542.00221.01904.19491.6682

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.712 C2 C1 H4 178.351
C2 N3 H5 112.572 C2 N3 H6 112.572
H5 N3 H6 109.883
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability