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All results from a given calculation for CH3NHNHCH3 (dimethyl hydrazine)

using model chemistry: MP2/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-189.927985
Energy at 298.15K-189.938402
Nuclear repulsion energy136.309394
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/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 3520 3376 1.42      
2 A 3161 3031 1.56      
3 A 3119 2991 12.16      
4 A 3035 2911 91.78      
5 A 1537 1474 0.98      
6 A 1514 1452 0.59      
7 A 1480 1419 0.01      
8 A 1430 1371 0.01      
9 A 1253 1202 10.83      
10 A 1147 1100 1.39      
11 A 1131 1085 0.83      
12 A 937 898 19.30      
13 A 749 718 113.52      
14 A 343 329 5.98      
15 A 321 308 1.81      
16 A 185 177 0.71      
17 B 3538 3393 2.66      
18 B 3161 3031 43.10      
19 B 3118 2990 50.05      
20 B 3024 2900 8.10      
21 B 1507 1445 12.25      
22 B 1478 1417 15.34      
23 B 1441 1382 0.29      
24 B 1417 1359 0.34      
25 B 1169 1121 3.51      
26 B 1132 1086 16.84      
27 B 1029 986 0.19      
28 B 791 759 29.67      
29 B 505 484 1.99      
30 B 228 219 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 24198.1 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 23206.0 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 MP2/aug-cc-pVDZ
ABC
0.48292 0.18807 0.15322

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.156 0.701 -0.698
N2 0.156 -0.701 -0.698
C3 0.156 1.427 0.540
C4 -0.156 -1.427 0.540
H5 -1.154 0.766 -0.898
H6 1.154 -0.766 -0.898
H7 -0.101 2.485 0.379
H8 -0.377 1.072 1.442
H9 1.240 1.363 0.726
H10 0.101 -2.485 0.379
H11 0.377 -1.072 1.442
H12 -1.240 -1.363 0.726

Atom - Atom Distances (Å)
  N1 N2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
N11.43571.46872.46151.02041.97682.08482.18352.10073.37262.82982.7316
N21.43572.46151.46871.97681.02043.37262.82982.73162.08482.18352.1007
C31.46872.46152.87012.05432.80611.10061.10601.10173.91502.66573.1246
C42.46151.46872.87012.80612.05433.91502.66573.12461.10061.10601.1017
H51.02041.97682.05432.80612.77072.38632.48452.95353.71163.34692.6792
H61.97681.02042.80612.05432.77073.71163.34692.67922.38632.48452.9535
H72.08483.37261.10063.91502.38633.71161.78921.78194.97353.74284.0276
H82.18352.82981.10602.66572.48453.34691.78921.79243.74282.27312.6806
H92.10072.73161.10173.12462.95352.67921.78191.79244.02762.68063.6848
H103.37262.08483.91501.10063.71162.38634.97353.74284.02761.78921.7819
H112.82982.18352.66571.10603.34692.48453.74282.27312.68061.78921.7924
H122.73162.10073.12461.10172.67922.95354.02762.68063.68481.78191.7924

picture of dimethyl hydrazine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 C4 115.880 N1 N2 H6 105.951
N1 C3 H7 107.611 N1 C3 H8 115.273
N1 C3 H9 108.785 N2 N1 C3 115.880
N2 N1 H5 105.951 N2 C4 H10 107.611
N2 C4 H11 115.273 N2 C4 H12 108.785
C3 N1 H5 109.928 C4 N2 H6 109.928
H7 C3 H8 108.362 H7 C3 H9 108.026
H8 C3 H9 108.568 H10 C4 H11 108.362
H10 C4 H12 108.026 H11 C4 H12 108.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability