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All results from a given calculation for CH3CH(CH3)CN (Propanenitrile, 2-methyl-)

using model chemistry: QCISD/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 QCISD/TZVP
 hartrees
Energy at 0K-210.855991
Energy at 298.15K-210.863294
HF Energy-210.063889
Nuclear repulsion energy159.097548
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 QCISD/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' 3156 3015 24.71      
2 A' 3151 3010 45.39      
3 A' 3088 2950 4.52      
4 A' 3070 2933 15.28      
5 A' 2340 2236 1.63      
6 A' 1534 1466 10.11      
7 A' 1529 1461 4.83      
8 A' 1462 1397 2.75      
9 A' 1380 1318 6.90      
10 A' 1223 1169 1.53      
11 A' 1147 1096 3.47      
12 A' 951 909 0.08      
13 A' 781 746 1.08      
14 A' 550 525 0.62      
15 A' 359 343 0.26      
16 A' 294 281 0.77      
17 A' 222 212 2.33      
18 A" 3154 3013 16.58      
19 A" 3145 3004 0.13      
20 A" 3067 2930 17.02      
21 A" 1517 1449 2.77      
22 A" 1512 1445 0.35      
23 A" 1439 1375 2.36      
24 A" 1363 1302 0.35      
25 A" 1160 1108 2.64      
26 A" 995 951 0.15      
27 A" 961 918 0.79      
28 A" 569 544 0.16      
29 A" 226 215 0.03      
30 A" 187 178 4.48      

Unscaled Zero Point Vibrational Energy (zpe) 22765.2 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 21747.6 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 QCISD/TZVP
ABC
0.26577 0.13202 0.09675

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.414 -2.176 0.000
C2 0.025 -1.085 0.000
C3 -0.446 0.311 0.000
C4 0.025 1.028 1.271
C5 0.025 1.028 -1.271
H6 -1.539 0.271 0.000
H7 -0.356 2.051 1.278
H8 -0.330 0.518 2.168
H9 1.116 1.064 1.306
H10 -0.356 2.051 -1.278
H11 -0.330 0.518 -2.168
H12 1.116 1.064 -1.306

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.15802.63183.46873.46873.13054.48243.53673.56324.48243.53673.5632
C21.15801.47392.46602.46602.07023.40772.71922.74123.40772.71922.7412
C32.63181.47391.53361.53361.09372.16032.18042.17092.16032.18042.1709
C43.46872.46601.53362.54262.15341.09181.09081.09202.77293.49462.7988
C53.46872.46601.53362.54262.15342.77293.49462.79881.09181.09081.0920
H63.13052.07021.09372.15342.15342.49022.49413.06352.49022.49413.0635
H74.48243.40772.16031.09182.77292.49021.77291.77262.55523.77103.1330
H83.53672.71922.18041.09083.49462.49411.77291.77003.77104.33513.8020
H93.56322.74122.17091.09202.79883.06351.77261.77003.13303.80202.6117
H104.48243.40772.16032.77291.09182.49022.55523.77103.13301.77291.7726
H113.53672.71922.18043.49461.09082.49413.77104.33513.80201.77291.7700
H123.56322.74122.17092.79881.09203.06353.13303.80202.61171.77261.7700

picture of Propanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.052 C2 C3 C4 110.141
C2 C3 C5 110.141 C2 C3 H6 106.528
C3 C4 H7 109.586 C3 C4 H8 111.248
C3 C4 H9 110.416 C3 C5 H10 109.586
C3 C5 H11 111.248 C3 C5 H12 110.416
C4 C3 C5 111.983 C4 C3 H6 108.941
C5 C3 H6 108.941 H7 C4 H8 108.635
H7 C4 H9 108.526 H8 C4 H9 108.365
H10 C5 H11 108.635 H10 C5 H12 108.526
H11 C5 H12 108.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability