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All results from a given calculation for C2H3NO3 (Oxamic acid)

using model chemistry: BLYP/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes H out 1A'
Energy calculated at BLYP/aug-cc-pVDZ
 hartrees
Energy at 0K-358.463226
Energy at 298.15K-358.468140
Nuclear repulsion energy229.151715
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 BLYP/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' 3609 3602 67.37      
2 A' 3582 3575 58.27      
3 A' 3466 3460 41.40      
4 A' 1702 1699 46.24      
5 A' 1690 1687 512.21      
6 A' 1540 1537 97.38      
7 A' 1338 1335 2.61      
8 A' 1261 1258 37.58      
9 A' 1119 1117 285.66      
10 A' 1045 1043 3.90      
11 A' 732 730 3.68      
12 A' 583 582 62.40      
13 A' 499 498 0.43      
14 A' 394 393 3.81      
15 A' 256 256 14.71      
16 A" 790 789 4.84      
17 A" 658 657 112.99      
18 A" 621 620 5.30      
19 A" 420 419 16.29      
20 A" 357 357 165.95      
21 A" 66 66 5.96      

Unscaled Zero Point Vibrational Energy (zpe) 12863.8 cm-1
Scaled (by 0.9981) Zero Point Vibrational Energy (zpe) 12839.3 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 BLYP/aug-cc-pVDZ
ABC
0.19068 0.11757 0.07273

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.763 0.000
C2 -0.050 -0.795 0.000
O3 -1.101 -1.437 0.000
O4 1.042 1.409 0.000
O5 -1.243 1.308 0.000
N6 1.212 -1.326 0.000
H7 1.324 -2.337 0.000
H8 2.025 -0.714 0.000
H9 -1.121 2.283 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 N6 H7 H8 H9
C11.55922.45981.22661.35702.41543.37092.50671.8884
C21.55921.23072.46072.41781.36912.06522.07713.2591
O32.45981.23073.56282.74832.31482.58623.20823.7199
O41.22662.46073.56282.28752.74113.75702.34002.3328
O51.35702.41782.74832.28753.60054.45793.84300.9828
N62.41541.36912.31482.74113.60051.01681.01834.2974
H73.37092.06522.58623.75704.45791.01681.76795.2269
H82.50672.07713.20822.34003.84301.01831.76794.3450
H91.88843.25913.71992.33280.98284.29745.22694.3450

picture of Oxamic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.261 C1 C2 N6 110.978
C1 O5 H9 106.523 C2 C1 O4 123.649
C2 C1 O5 111.822 C2 N6 H7 119.170
C2 N6 H8 120.212 O3 C2 N6 125.760
O4 C1 O5 124.529 H7 N6 H8 120.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.624      
2 C 0.496      
3 O -0.468      
4 O -0.483      
5 O -0.325      
6 N 0.191      
7 H -0.097      
8 H -0.086      
9 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.176 0.536 0.000 2.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.978 -10.433 0.000
y -10.433 -30.048 0.000
z 0.000 0.000 -34.445
Traceless
 xyz
x -3.732 -10.433 0.000
y -10.433 5.164 0.000
z 0.000 0.000 -1.432
Polar
3z2-r2-2.865
x2-y2-5.930
xy-10.433
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.721 -0.237 0.000
y -0.237 8.258 -0.000
z 0.000 -0.000 4.622


<r2> (average value of r2) Å2
<r2> 145.938
(<r2>)1/2 12.080