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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP2=FULL/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 MP2=FULL/TZVP
 hartrees
Energy at 0K-132.393963
Energy at 298.15K-132.396068
HF Energy-131.897080
Nuclear repulsion energy59.299533
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 MP2=FULL/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' 3585 3416 22.13      
2 A' 3530 3363 83.79      
3 A' 2218 2113 90.57      
4 A' 1654 1575 35.15      
5 A' 1073 1022 12.55      
6 A' 720 686 242.06      
7 A' 526 501 82.44      
8 A' 405 386 10.15      
9 A" 3687 3513 36.96      
10 A" 1212 1155 0.08      
11 A" 635 605 44.61      
12 A" 306 292 4.97      

Unscaled Zero Point Vibrational Energy (zpe) 9775.4 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 9313.1 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 MP2=FULL/TZVP
ABC
10.11706 0.30998 0.30369

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 1.366 0.000
C2 0.000 0.160 0.000
N3 0.001 -1.199 0.000
H4 0.135 2.426 0.000
H5 -0.407 -1.598 0.832
H6 -0.407 -1.598 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21132.56731.05963.12253.1225
C21.21131.35892.26941.98751.9875
N32.56731.35893.62671.00941.0094
H41.05962.26943.62674.14464.1446
H53.12251.98751.00944.14461.6646
H63.12251.98751.00944.14461.6646

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.662 C2 C1 H4 175.993
C2 N3 H5 113.297 C2 N3 H6 113.297
H5 N3 H6 111.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability