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	hartrees
Energy at 0K	-264.189985
Energy at 298.15K	-264.195799
Nuclear repulsion energy	208.028453

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3228	3093	6.54
2	A₁	3201	3068	1.09
3	A₁	1633	1565	6.23
4	A₁	1493	1431	1.29
5	A₁	1225	1174	0.22
6	A₁	1178	1129	0.10
7	A₁	1108	1062	13.69
8	A₁	1031	988	6.96
9	A₁	680	652	2.85
10	A₂	1019	976	0.00
11	A₂	945	906	0.00
12	A₂	772	740	0.00
13	A₂	370	355	0.00
14	B₁	981	940	0.00
15	B₁	763	731	35.60
16	B₁	371	356	9.03
17	B₂	3214	3081	19.70
18	B₂	3196	3063	9.06
19	B₂	1630	1562	3.70
20	B₂	1445	1385	19.00
21	B₂	1318	1263	1.92
22	B₂	1092	1047	0.74
23	B₂	1053	1009	1.58
24	B₂	629	603	0.00

Atom	y (Å)	z (Å)
C1	0.691	1.179
C2	-0.691	1.179
C3	-1.320	-0.068
C4	1.320	-0.068
H5	1.271	2.097
H6	-1.271	2.097
H7	-2.404	-0.153
H8	2.404	-0.153
N9	0.665	-1.230
N10	-0.665	-1.230

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3826	2.3660	1.3959	1.0857	2.1667	3.3693	2.1692	2.4090	2.7642
C2	1.3826		1.3959	2.3660	2.1667	1.0857	2.1692	3.3693	2.7642	2.4090
C3	2.3660	1.3959		2.6396	3.3761	2.1647	1.0872	3.7244	2.2997	1.3344
C4	1.3959	2.3660	2.6396		2.1647	3.3761	3.7244	1.0872	1.3344	2.2997
H5	1.0857	2.1667	3.3761	2.1647		2.5428	4.3089	2.5184	3.3815	3.8489
H6	2.1667	1.0857	2.1647	3.3761	2.5428		2.5184	4.3089	3.8489	3.3815
H7	3.3693	2.1692	1.0872	3.7244	4.3089	2.5184		4.8073	3.2517	2.0457
H8	2.1692	3.3693	3.7244	1.0872	2.5184	4.3089	4.8073		2.0457	3.2517
N9	2.4090	2.7642	2.2997	1.3344	3.3815	3.8489	3.2517	2.0457		1.3290
N10	2.7642	2.4090	1.3344	2.2997	3.8489	3.3815	2.0457	3.2517	1.3290

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.759	C1	C2	H6	122.296
C1	C4	H8	121.260	C1	C4	N9	123.830
C2	C1	C4	116.759	C2	C1	H5	122.296
C2	C3	H7	121.260	C2	C3	N10	123.830
C3	C2	H6	120.945	C3	N10	N9	119.412
C4	C1	H5	120.945	C4	N9	N10	119.412
H7	C3	N10	114.910	H8	C4	N9	114.910

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: B3PW91/6-31G**

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Number	Element	Mulliken
1	C	-0.109
2	C	-0.109
3	C	0.068
4	C	0.068
5	H	0.147
6	H	0.147
7	H	0.150
8	H	0.150
9	N	-0.255
10	N	-0.255

<r²>	115.459
(<r²>)^1/2	10.745

All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: B3PW91/6-31G**

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)