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All results from a given calculation for NH2CCNH2 (Diaminoacetylene)

using model chemistry: B2PLYP=FULLultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP=FULLultrafine/TZVP
 hartrees
Energy at 0K-187.942027
Energy at 298.15K 
HF Energy-187.715992
Nuclear repulsion energy102.052325
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 B2PLYP=FULLultrafine/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 3651 3651 25.25      
2 A 3560 3560 2.50      
3 A 2365 2365 0.40      
4 A 1669 1669 11.13      
5 A 1206 1206 0.08      
6 A 823 823 3.20      
7 A 554 554 160.83      
8 A 406 406 12.37      
9 A 388 388 13.12      
10 A 177 177 22.89      
11 B 3651 3651 24.03      
12 B 3563 3563 12.25      
13 B 1670 1670 33.90      
14 B 1371 1371 115.44      
15 B 1206 1206 0.07      
16 B 610 610 335.00      
17 B 389 389 16.75      
18 B 178 178 24.25      

Unscaled Zero Point Vibrational Energy (zpe) 13718.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13718.6 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 B2PLYP=FULLultrafine/TZVP
ABC
5.24660 0.11964 0.11962

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.003 0.604 0.053
C2 -0.003 -0.604 0.053
N3 -0.003 1.954 -0.082
N4 0.003 -1.954 -0.082
H5 -0.346 2.468 0.716
H6 0.840 2.356 -0.462
H7 0.346 -2.468 0.716
H8 -0.840 -2.356 -0.462

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8
C11.20761.35702.56142.00892.00873.16083.1203
C21.20762.56141.35703.16083.12032.00892.0087
N31.35702.56143.90821.00851.00874.50664.4069
N42.56141.35703.90824.50664.40691.00851.0087
H52.00893.16081.00854.50661.67524.98344.9896
H62.00873.12031.00874.40691.67524.98965.0025
H73.16082.00894.50661.00854.98344.98961.6752
H83.12032.00874.40691.00874.98965.00251.6752

picture of Diaminoacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 174.288 C1 N3 H5 115.467
C1 N3 H6 115.438 C2 C1 N3 174.288
C2 N4 H7 115.467 C2 N4 H8 115.438
H5 N3 H6 112.285 H7 N4 H8 112.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability