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

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-210.850679
Energy at 298.15K-210.857856
HF Energy-210.017450
Nuclear repulsion energy157.497638
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(T)=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' 3123 3030        
2 A' 3115 3022        
3 A' 3045 2954        
4 A' 3030 2939        
5 A' 2242 2175        
6 A' 1494 1449        
7 A' 1484 1440        
8 A' 1407 1365        
9 A' 1334 1294        
10 A' 1185 1150        
11 A' 1112 1078        
12 A' 932 904        
13 A' 765 742        
14 A' 531 516        
15 A' 350 340        
16 A' 281 273        
17 A' 211 205        
18 A" 3121 3028        
19 A" 3111 3018        
20 A" 3029 2938        
21 A" 1473 1429        
22 A" 1472 1428        
23 A" 1387 1345        
24 A" 1312 1273        
25 A" 1134 1100        
26 A" 968 939        
27 A" 923 895        
28 A" 548 532        
29 A" 220 214        
30 A" 179 174        

Unscaled Zero Point Vibrational Energy (zpe) 22258.3 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 21592.7 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(T)=FULL/aug-cc-pVDZ
ABC
0.26188 0.12914 0.09496

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.428 -2.201 0.000
C2 0.024 -1.093 0.000
C3 -0.455 0.316 0.000
C4 0.024 1.038 1.279
C5 0.024 1.038 -1.279
H6 -1.560 0.275 0.000
H7 -0.365 2.071 1.286
H8 -0.331 0.521 2.186
H9 1.127 1.077 1.306
H10 -0.365 2.071 -1.286
H11 -0.331 0.521 -2.186
H12 1.127 1.077 -1.306

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17892.66743.50523.50523.17524.53073.57273.59754.53073.57273.5975
C21.17891.48872.48522.48522.09313.43722.74082.76313.43722.74082.7631
C32.66741.48871.54451.54451.10582.17692.19942.18802.17692.19942.1880
C43.50522.48521.54452.55822.17381.10391.10271.10392.79253.52172.8113
C53.50522.48521.54452.55822.17382.79253.52172.81131.10391.10271.1039
H63.17522.09311.10582.17382.17382.51062.52013.09322.51062.52013.0932
H74.53073.43722.17691.10392.79252.51061.79251.79252.57193.80263.1518
H83.57272.74082.19941.10273.52172.52011.79251.79133.80264.37283.8255
H93.59752.76312.18801.10392.81133.09321.79251.79133.15183.82552.6130
H104.53073.43722.17692.79251.10392.51062.57193.80263.15181.79251.7925
H113.57272.74082.19943.52171.10272.52013.80264.37283.82551.79251.7913
H123.59752.76312.18802.81131.10393.09323.15183.82552.61301.79251.7913

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 178.722 C2 C3 C4 110.026
C2 C3 C5 110.026 C2 C3 H6 106.633
C3 C4 H7 109.436 C3 C4 H8 111.281
C3 C4 H9 110.308 C3 C5 H10 109.436
C3 C5 H11 111.281 C3 C5 H12 110.308
C4 C3 C5 111.827 C4 C3 H6 109.091
C5 C3 H6 109.091 H7 C4 H8 108.650
H7 C4 H9 108.565 H8 C4 H9 108.541
H10 C5 H11 108.650 H10 C5 H12 108.565
H11 C5 H12 108.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability