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	hartrees
Energy at 0K	-44.362405
Energy at 298.15K	-44.368126
HF Energy	-43.575909
Nuclear repulsion energy	103.550024

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3245	3080	7.39
2	A₁	3222	3059	0.90
3	A₁	1619	1537	4.31
4	A₁	1472	1397	2.64
5	A₁	1311	1245	0.03
6	A₁	1162	1103	0.21
7	A₁	1089	1034	11.33
8	A₁	976	927	6.45
9	A₁	657	624	1.33
10	A₂	964	915	0.00
11	A₂	924	877	0.00
12	A₂	742	705	0.00
13	A₂	363	345	0.00
14	B₁	950	902	0.01
15	B₁	780	740	67.92
16	B₁	372	353	9.42
17	B₂	3231	3067	25.61
18	B₂	3207	3045	1.76
19	B₂	1603	1522	5.08
20	B₂	1411	1339	17.91
21	B₂	1289	1223	2.94
22	B₂	1073	1018	0.50
23	B₂	1048	995	0.26
24	B₂	606	575	0.20

Atom	y (Å)	z (Å)
C1	0.705	1.191
C2	-0.705	1.191
C3	-1.340	-0.085
C4	1.340	-0.085
H5	1.293	2.115
H6	-1.293	2.115
H7	-2.433	-0.177
H8	2.433	-0.177
N9	0.682	-1.273
N10	-0.682	-1.273

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.4096	2.4104	1.4254	1.0947	2.2006	3.4227	2.2038	2.4647	2.8282
C2	1.4096		1.4254	2.4104	2.2006	1.0947	2.2038	3.4227	2.8282	2.4647
C3	2.4104	1.4254		2.6803	3.4307	2.2000	1.0963	3.7738	2.3460	1.3585
C4	1.4254	2.4104	2.6803		2.2000	3.4307	3.7738	1.0963	1.3585	2.3460
H5	1.0947	2.2006	3.4307	2.2000		2.5854	4.3736	2.5594	3.4426	3.9218
H6	2.2006	1.0947	2.2000	3.4307	2.5854		2.5594	4.3736	3.9218	3.4426
H7	3.4227	2.2038	1.0963	3.7738	4.3736	2.5594		4.8651	3.3023	2.0653
H8	2.2038	3.4227	3.7738	1.0963	2.5594	4.3736	4.8651		2.0653	3.3023
N9	2.4647	2.8282	2.3460	1.3585	3.4426	3.9218	3.3023	2.0653		1.3648
N10	2.8282	2.4647	1.3585	2.3460	3.9218	3.4426	2.0653	3.3023	1.3648

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.470	C1	C2	H6	122.481
C1	C4	H8	121.290	C1	C4	N9	124.571
C2	C1	C4	116.470	C2	C1	H5	122.481
C2	C3	H7	121.290	C2	C3	N10	124.571
C3	C2	H6	121.049	C3	N10	N9	118.959
C4	C1	H5	121.049	C4	N9	N10	118.959
H7	C3	N10	114.139	H8	C4	N9	114.139

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: MP2/CEP-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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All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: MP2/CEP-31G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)