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All results from a given calculation for CH3CH(NH2)COOH (Alanine)

using model chemistry: MP2=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-322.867246
Energy at 298.15K-322.876866
HF Energy-321.894290
Nuclear repulsion energy249.765827
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/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 3616 3437 7.27      
2 A 3523 3349 153.29      
3 A 3507 3333 140.84      
4 A 3217 3057 5.13      
5 A 3186 3028 20.39      
6 A 3098 2944 12.31      
7 A 3091 2937 13.81      
8 A 1870 1777 230.66      
9 A 1649 1567 31.60      
10 A 1499 1424 29.59      
11 A 1489 1416 4.11      
12 A 1464 1392 372.16      
13 A 1411 1341 8.71      
14 A 1397 1328 5.80      
15 A 1338 1271 15.02      
16 A 1259 1197 12.36      
17 A 1227 1166 10.31      
18 A 1178 1120 8.20      
19 A 1125 1069 48.01      
20 A 1025 974 1.30      
21 A 958 911 60.45      
22 A 920 874 51.51      
23 A 880 836 79.21      
24 A 816 776 14.07      
25 A 739 703 7.43      
26 A 568 540 6.48      
27 A 539 512 0.42      
28 A 414 393 5.62      
29 A 371 353 20.82      
30 A 311 296 13.50      
31 A 285 271 12.95      
32 A 242 230 1.09      
33 A 82 78 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 24145.1 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 22947.5 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/cc-pVDZ
ABC
0.16136 0.11598 0.07180

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.042 1.369 -0.066
C2 1.483 -1.130 -0.167
C3 0.644 0.021 0.377
C4 -0.849 -0.176 0.051
O5 -1.515 0.981 -0.109
O6 -1.375 -1.266 -0.016
H7 1.333 1.322 -1.047
H8 1.866 1.679 0.450
H9 1.084 -2.091 0.189
H10 1.449 -1.141 -1.269
H11 0.697 0.021 1.481
H12 2.533 -1.033 0.152
H13 -0.800 1.658 -0.055

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54001.47332.44462.58573.57601.02431.02113.46932.81282.08062.83541.8637
C22.54001.52502.52923.66682.86552.61032.90141.09891.10292.15871.10123.6050
C31.47331.52501.54072.41162.42672.04812.06102.16562.16951.10562.17472.2245
C42.44462.52921.54071.34441.21222.86573.31282.72452.82042.11473.49011.8377
O52.58573.66682.41161.34442.25343.01693.49734.03453.82452.88774.52800.9860
O63.57602.86552.42671.21222.25343.88544.40452.60223.09202.86223.91852.9804
H71.02432.61032.04812.86573.01693.88541.62883.63842.47592.91362.90252.3754
H81.02112.90142.06103.31283.49734.40451.62883.85873.32852.27582.80812.7136
H93.46931.09892.16562.72454.03452.60223.63843.85871.77772.50631.79394.2023
H102.81281.10292.16952.82043.82453.09202.47593.32851.77773.07891.79033.7895
H112.08062.15871.10562.11472.88772.86222.91362.27582.50633.07892.50002.6974
H122.83541.10122.17473.49014.52803.91852.90252.80811.79391.79032.50004.2879
H131.86373.60502.22451.83770.98602.98042.37542.71364.20233.78952.69744.2879

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.789 N1 C3 C4 108.381
N1 C3 H11 106.693 C2 C3 C4 111.176
C2 C3 H11 109.260 C3 N1 H7 108.842
C3 N1 H8 110.109 C3 C2 H9 110.183
C3 C2 H10 110.258 C3 C2 H12 110.770
C3 C4 O5 113.237 C3 C4 O6 123.198
C4 C3 H11 104.898 C4 O5 H13 103.029
O5 C4 O6 123.536 H7 N1 H8 105.558
H9 C2 H10 107.679 H9 C2 H12 109.248
H10 C2 H12 108.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability