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All results from a given calculation for C2H5NO3 (Nitric acid, ethyl ester)

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-358.641854
Energy at 298.15K-358.649749
HF Energy-357.532823
Nuclear repulsion energy249.869076
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/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' 3157 3028        
2 A' 3076 2950        
3 A' 3065 2939        
4 A' 1744 1672        
5 A' 1517 1455        
6 A' 1492 1431        
7 A' 1426 1367        
8 A' 1389 1332        
9 A' 1321 1267        
10 A' 1146 1099        
11 A' 1071 1027        
12 A' 932 894        
13 A' 856 821        
14 A' 699 670        
15 A' 562 539        
16 A' 377 362        
17 A' 229 220        
18 A" 3166 3037        
19 A" 3132 3003        
20 A" 1476 1416        
21 A" 1284 1231        
22 A" 1179 1131        
23 A" 824 790        
24 A" 759 727        
25 A" 260 249        
26 A" 123 118        
27 A" 101 97        

Unscaled Zero Point Vibrational Energy (zpe) 18180.9 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 17435.5 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 QCISD(T)=FULL/cc-pVDZ
ABC
0.32873 0.07314 0.06123

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.109 -0.319 0.000
O2 0.000 0.577 0.000
O3 2.168 0.260 0.000
O4 0.866 -1.511 0.000
C5 -1.275 -0.110 0.000
C6 -2.321 0.996 0.000
H7 -1.351 -0.751 0.896
H8 -1.351 -0.751 -0.896
H9 -3.329 0.546 0.000
H10 -2.217 1.631 0.897
H11 -2.217 1.631 -0.897

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.42651.20671.21612.39363.67402.65362.65364.52233.95863.9586
O21.42652.19132.26081.44842.35852.09552.09553.32952.61312.6131
O31.20672.19132.19763.46304.54923.76913.76915.50504.68114.6811
O41.21612.26082.19762.55914.05502.50922.50924.67254.49224.4922
C52.39361.44843.46302.55911.52201.10441.10442.15632.17262.1726
C63.67402.35854.54924.05501.52202.18982.18981.10431.10351.1035
H72.65362.09553.76912.50921.10442.18981.79222.52942.53413.1041
H82.65362.09553.76912.50921.10442.18981.79222.52943.10412.5341
H94.52233.32955.50504.67252.15631.10432.52942.52941.79431.7943
H103.95862.61314.68114.49222.17261.10352.53413.10411.79431.7932
H113.95862.61314.68114.49222.17261.10353.10412.53411.79431.7932

picture of Nitric acid, ethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 C5 112.736 O2 N1 O3 112.386
O2 N1 O4 117.416 O2 C5 C6 105.098
O2 C5 H7 109.614 O2 C5 H8 109.614
O3 N1 O4 130.198 C5 C6 H9 109.345
C5 C6 H10 110.671 C5 C6 H11 110.671
C6 C5 H7 111.995 C6 C5 H8 111.995
H7 C5 H8 108.468 H9 C6 H10 108.714
H9 C6 H11 108.714 H10 C6 H11 108.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability