CCCBDB calculation results Page

using model chemistry: B2PLYP=FULLultrafine/cc-pVDZ

States and conformations

State	Conformation	minimum conformation	conformer description	state description
1	1	no	CS cis	¹A^'
1	3	yes	C1 cis	¹A^'

State

Conformation

minimum conformation

conformer description

state description

CS cis

¹A^'

yes

C1 cis

¹A^'

Conformer 1 (CS cis)

Jump to S1C2 S1C3

Energy calculated at B2PLYP=FULLultrafine/cc-pVDZ

	hartrees
Energy at 0K	-209.004155
Energy at 298.15K
HF Energy	-208.793289
Nuclear repulsion energy	118.859501

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 B2PLYP=FULLultrafine/cc-pVDZ

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A'	3618	3467	26.04	89.71	0.23	0.37
2	A'	3158	3026	15.02	51.15	0.74	0.85
3	A'	3051	2923	57.78	180.77	0.03	0.05
4	A'	2952	2829	98.46	97.13	0.32	0.48
5	A'	1818	1742	429.11	8.11	0.50	0.67
6	A'	1530	1466	17.86	12.18	0.75	0.86
7	A'	1484	1422	11.52	16.16	0.40	0.57
8	A'	1461	1400	5.50	3.38	0.75	0.86
9	A'	1392	1334	10.85	7.73	0.64	0.78
10	A'	1307	1252	104.58	5.26	0.39	0.56
11	A'	1176	1127	26.41	4.17	0.72	0.84
12	A'	1014	972	42.45	5.37	0.27	0.43
13	A'	613	587	13.58	5.55	0.38	0.55
14	A'	342	327	7.70	0.35	0.20	0.33
15	A"	3115	2985	31.74	106.91	0.75	0.86
16	A"	1475	1413	5.46	15.81	0.75	0.86
17	A"	1149	1101	0.34	1.60	0.75	0.86
18	A"	1042	999	0.56	2.13	0.75	0.86
19	A"	610	584	107.66	1.15	0.75	0.86
20	A"	204	196	1.00	3.37	0.75	0.86
21	A"	81	78	1.20	0.14	0.75	0.86

Unscaled Zero Point Vibrational Energy (zpe) 16295.2 cm^-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 15614.0 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 B2PLYP=FULLultrafine/cc-pVDZ

A	B	C
1.48201	0.14503	0.13552

See section I.F.4 to change rotational constant units

Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVDZ

Point Group is C_s

Cartesians (Å)

Atom	x (Å)	y (Å)	z (Å)
C1	0.284	-0.761	0.000
O2	1.404	-1.238	0.000
N3	0.000	0.574	0.000
C4	-1.333	1.136	0.000
H5	-0.648	-1.377	0.000
H6	0.805	1.192	0.000
H7	-2.062	0.314	0.000
H8	-1.518	1.753	0.894
H9	-1.518	1.753	-0.894

Atom - Atom Distances (Å)

	C1	O2	N3	C4	H5	H6	H7	H8	H9
C1		1.2179	1.3642	2.4923	1.1167	2.0212	2.5799	3.2192	3.2192
O2	1.2179		2.2920	3.6232	2.0567	2.5029	3.7974	4.2757	4.2757
N3	1.3642	2.2920		1.4467	2.0550	1.0150	2.0781	2.1197	2.1197
C4	2.4923	3.6232	1.4467		2.6045	2.1383	1.0990	1.1017	1.1017
H5	1.1167	2.0567	2.0550	2.6045		2.9510	2.2037	3.3691	3.3691
H6	2.0212	2.5029	1.0150	2.1383	2.9510		2.9981	2.5509	2.5509
H7	2.5799	3.7974	2.0781	1.0990	2.2037	2.9981		1.7796	1.7796
H8	3.2192	4.2757	2.1197	1.1017	3.3691	2.5509	1.7796		1.7877
H9	3.2192	4.2757	2.1197	1.1017	3.3691	2.5509	1.7796	1.7877

picture of N-methylformamide state 1 conformation 1

More geometry information
Calculated Bond Angles

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	N3	C4	124.887	C1	N3	H6	115.541
O2	C1	N3	125.067	O2	C1	H5	123.467
N3	C1	H5	111.466	N3	C4	H7	108.667
N3	C4	H8	111.856	N3	C4	H9	111.856
C4	N3	H6	119.572	H7	C4	H8	107.930
H7	C4	H9	107.930	H8	C4	H9	108.454

Electronic energy levels

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)

Number	Element	Mulliken
1	C	0.192
2	O	-0.269
3	N	-0.188
4	C	0.055
5	H	-0.014
6	H	0.097
7	H	0.043
8	H	0.042
9	H	0.042

Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)

	x	y	z	Total
	-2.792	2.680	0.000	3.871
CHELPG
AIM
ESP

Electric Quadrupole moment
Quadrupole components in D Å

Primitive
	x	y	z
x	-26.176	3.745	0.012
y	3.745	-24.353	-0.011
z	0.012	-0.011	-24.610

Traceless
	x	y	z
x	-1.694	3.745	0.012
y	3.745	1.040	-0.011
z	0.012	-0.011	0.654

Polar
3z²-r²	1.309
x²-y²	-1.823
xy	3.745
xz	0.012
yz	-0.011

Polarizabilities
Components of the polarizability tensor.
Units are Å³ (Angstrom cubed)
Change units.

	x	y	z
x	5.645	-1.036	-0.001
y	-1.036	5.694	0.002
z	-0.001	0.002	3.105

<r²> (average value of r²) Å²

<r²>	89.423
(<r²>)^1/2	9.456

Conformer 2 ()

Jump to S1C1 S1C3

Energy calculated at B2PLYP=FULLultrafine/cc-pVDZ

	hartrees
Energy at 0K	-209.004155
Energy at 298.15K
HF Energy	-208.793289
Nuclear repulsion energy	118.859501

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 B2PLYP=FULLultrafine/cc-pVDZ

Rotational Constants (cm^-1) from geometry optimized at B2PLYP=FULLultrafine/cc-pVDZ

A	B	C
1.48201	0.14503	0.13552

See section I.F.4 to change rotational constant units

Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVDZ

Point Group is C_s

Electronic energy levels

Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C1 cis)

Jump to S1C1 S1C2

Energy calculated at B2PLYP=FULLultrafine/cc-pVDZ

	hartrees
Energy at 0K	-209.005949
Energy at 298.15K
HF Energy	-208.794922
Nuclear repulsion energy	121.055114

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 B2PLYP=FULLultrafine/cc-pVDZ

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A	3651	3498	25.63
2	A	3192	3059	0.59
3	A	3125	2995	31.92
4	A	3058	2930	48.05
5	A	2972	2847	129.43
6	A	1801	1726	304.25
7	A	1561	1496	90.72
8	A	1493	1431	6.49
9	A	1488	1426	32.50
10	A	1431	1372	18.99
11	A	1417	1358	1.53
12	A	1228	1176	82.03
13	A	1158	1109	16.69
14	A	1153	1105	0.67
15	A	1022	979	0.15
16	A	976	935	18.67
17	A	767	735	0.49
18	A	527	505	34.62
19	A	302	290	13.05
20	A	240	230	70.25
21	A	93	89	1.13

Unscaled Zero Point Vibrational Energy (zpe) 16327.7 cm^-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 15645.2 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 B2PLYP=FULLultrafine/cc-pVDZ

A	B	C
0.65919	0.20376	0.16044

See section I.F.4 to change rotational constant units

Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVDZ

Point Group is C₁

Cartesians (Å)

Atom	x (Å)	y (Å)	z (Å)
C1	0.866	0.438	0.004
O2	1.376	-0.674	-0.000
N3	-0.474	0.661	-0.022
C4	-1.422	-0.443	0.005
H5	1.457	1.381	0.021
H6	-0.807	1.613	0.060
H7	-2.426	-0.060	-0.217
H8	-1.142	-1.188	-0.752
H9	-1.434	-0.945	0.986

Atom - Atom Distances (Å)

	C1	O2	N3	C4	H5	H6	H7	H8	H9
C1		1.2233	1.3591	2.4512	1.1131	2.0454	3.3363	2.6917	2.8570
O2	1.2233		2.2818	2.8067	2.0568	3.1623	3.8567	2.6768	2.9896
N3	1.3591	2.2818		1.4551	2.0615	1.0115	2.0892	2.0972	2.1247
C4	2.4512	2.8067	1.4551		3.4077	2.1464	1.0975	1.0986	1.1017
H5	1.1131	2.0568	2.0615	3.4077		2.2764	4.1480	3.7347	3.8334
H6	2.0454	3.1623	1.0115	2.1464	2.2764		2.3437	2.9353	2.7912
H7	3.3363	3.8567	2.0892	1.0975	4.1480	2.3437		1.7914	1.7927
H8	2.6917	2.6768	2.0972	1.0986	3.7347	2.9353	1.7914		1.7792
H9	2.8570	2.9896	2.1247	1.1017	3.8334	2.7912	1.7927	1.7792

picture of N-methylformamide state 1 conformation 3

More geometry information
Calculated Bond Angles

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	N3	C4	121.118	C1	N3	H6	118.534
O2	C1	N3	124.078	O2	C1	H5	123.299
N3	C1	H5	112.620	N3	C4	H7	109.064
N3	C4	H8	109.630	N3	C4	H9	111.665
C4	N3	H6	119.889	H7	C4	H8	109.318
H7	C4	H9	109.207	H8	C4	H9	107.924

Electronic energy levels

Charges, Dipole, Quadrupole and Polarizability

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
	Home All data for one species Geometry Experimental Experimental Geometries Same bond/angle many molecules Internal Coordinates by type Bond angles Calculated Calculated geometry Rotational constant Moments of inertia Products of moments of inertia BSE Bond lengths Show me a calculated geometry Comparisons Bonds, angles Rotational Constants Products of moments of inertia Point group Bad Calculations Bad moment of inertia Tutorials and Explanations Angle formulas Vibrations Experimental Vibrational frequencies Calculated Frequencies Scale factors Reactions Entropies Ions List Ions Energy Calculated Ionization Energy Compare Ionzation energy Electron Affinity Calculated Electron affinity Compare Electron affinity Proton Affinity Calculated Proton affinity Compare Proton affinity Ionization changes point group Experimental One molecule all properties One property a few molecules Enthalpy of formation Entropy Integrated Heat Capacity Heat Capacity Rotational Constants Vibrational Frequencies Dipole moment Ionization Energy Polarizability Quadrupole Point Groups Geometry Experimental Geometries Internal Coordinates by type Bond angles Rotational Constants Point Groups Diatomic bond lengths Vibrations Vibrational frequencies Diatomic Triatomics Energy Atomization Energy Internal Rotation Electrostatics Dipole Quadrupole Polarizability Reference Data Reference states Spin Splittings Molecules with good enthalpy Enthalpy at 0 Kelvin Calculated Energy Optimized Energy Energy 298K Minimum conformation Hydrogen bonds H bond with counterpoise Reaction Reaction Energy 0K Reaction Energy 298K Internal Rotation Barriers to internal rotation Rotational barrier and dipole Rotational Barrier 2 molecules Orbital HOMO LUMO gap HOMO Orbital Energies Nuclear repulsion energy Correlation Full vs Frozen core energies Partial correlation energies Ion Calculated Ionization Energy Vertical ionization Energy Calculated Electron affinity Calculated Proton affinity Atom charge differences Excited State Singlet triplet gap Electronic state Transition state Basis Set Extrapolation BSE energy BSE Bond lengths Geometry Calculated geometry AIM bond orders One type of bond Rotation Rotational constant Products of moments of inertia Moments of inertia Inertial defects Second moments Point group State symmetry <r2> Sorted by r2 Z-matrix Bad Calculations Bad moment of inertia Bad Calculated Bond Lengths Bad point group Worst molecules Vibrations Frequencies Animated vibrations Anharmonic Zero point energy (ZPE) Scale Factors Scale factors Scale factor uncertainty Calculate a scale factor Why scale vibrations Set scaling factors Bad Calculations Bad Vib. HF vs MP2 Bad vib. Calc. vs exp. Big anharmonicity Electrostatics Charges Mulliken CHELP Aim ESP Dipole Dipole Dipole angle Dipole calculation types Quadrupole Polarizability Spin Spin density Entropy and Heat Capacity Entropy Reaction entropy Heat Capacity Reaction Reaction Energy 0K Reaction Energy 298K Isodesmic reactions Transition State Transition state Transition state frequencies Transition state geometries IRC Lookup by property By frequency Comparisons Geometry Bonds, angles Bond, angle, or dihedral DFT grid size on point group DFT grid on bond length Core correlation - bond length Same bond/angle many molecules Isoelectronic diatomics Isoelectronic triatomic angles Average bond lengths Rotation Rotational Constants Products of moments of inertia Point group Vibrations Vibrations 2 calculations Frequency differences One frequency Zero point energy Intensity Intensity for one mode Vibrational intensities Reduced mass comparison Anharmonic Triatomic Scale factors Energy Reaction Reaction Energy 0K Reaction Energy 298K Atomization 0K Atomization 298K Single point vs optimized DFT grid size on energy Semiempirical enthalpy Internal rotation Similar molecules Conformation Sets of isomers Sets of tautomers Isomers Entropy Entropy Heat capacity Entropy of several molecules Integrated heat capacity Reaction entropy Electrostatics Dipole Polarizability Several molecules Quadrupole Ion Compare Ionzation energy Koopman ionization energy Koopman IE for a few molecules Compare Electron affinity Compare Proton affinity Protonation Site Resources Info on Results Calculations Done Method and basis set List molecules One molecule Multiple conformers, states Multiple conformers, states Basis functions used I/O files Input/output files MOL file Z-matrix wfn files Glossary Conversion Forms B to I, I to B Angle formulas Integrated heat Capacity Calculating Enthalpy Links NIST Links NIST webbook bibliographic data CCCBDB Experimental data External links Basis Set Exchange Computational Chemistry List Thermochemistry in Gaussian Minnesota Database Collection Benchmark Energy and Geometry Point Groups Thermochemistry Thermochemistry Molecules with good enthalpy A → B + C Reference states Tutorials Vibrations Why scale vibrations Zero-point energies Entropy Methyl rotor entropy Entropy and conformations Energy Getting enthalpy of formation Vertical vs adiabatic IE Thermo from calculations Electrostatics Dipole parts by point group Quadrupoles Geometry Angle formulas Cost Cost Comparison Timings Comparison Bad Calculations Geometry Bad moment of inertia Bad Calculated Bond Lengths Bad point group Worst molecules Vibrations Bad vib. Calc. vs exp. Bad Vib. HF vs MP2 Bad scale factors Low excited states Oddities NaCN Is not linear FAQ Help Units Choose Units Energy Bond length Rotational Constant Moment of Inertia Dipole and Quadrupole Polarizability Explanations Hartree cm-1 Debye Credits Just show me Show me a calculated geometry Summary Using older interface Limit Basis sets Method options List Recent molecules Choose a few Molecules Number of atoms By heavy atoms Diatomics InChI Deuterated Dimers Geometry Point group Point group count Bonds types Isodesmic reactions Bad point group Multiple conformers, states Vibrations Big anharmonicity Energy Enthalpy at 0 Kelvin Similar molecules Similar Isomers Cis/trans Tautomers Multiple conformers, states Ions, Dipoles, etc. List Ions Ionization changes point group Dipole Quadrupole Polarizability Proton Affinities Index of CCCBDB Feedback Error form Wants
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HCONHCH3 (N-methylformamide)

using model chemistry: B2PLYP=FULLultrafine/cc-pVDZ

States and conformations

Conformer 1 (CS cis)

Conformer 2 ()

Conformer 3 (C1 cis)

All results from a given calculation for HCONHCH₃ (N-methylformamide)