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	hartrees
Energy at 0K	-263.103203
Energy at 298.15K	-263.108778
HF Energy	-262.539881
Nuclear repulsion energy	201.502642

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3233	3114	9.41
2	A₁	3208	3090	3.68
3	A₁	1552	1495	5.24
4	A₁	1415	1363	7.65
5	A₁	1189	1145	0.30
6	A₁	1140	1098	0.85
7	A₁	1024	986	4.57
8	A₁	853	821	3.76
9	A₁	658	634	0.98
10	A₂	901	868	0.00
11	A₂	847	816	0.00
12	A₂	733	706	0.00
13	A₂	354	341	0.00
14	B₁	884	852	0.04
15	B₁	729	702	67.04
16	B₁	361	348	10.34
17	B₂	3221	3102	28.35
18	B₂	3193	3075	0.03
19	B₂	1529	1473	6.45
20	B₂	1410	1358	15.42
21	B₂	1259	1213	2.02
22	B₂	1074	1034	0.74
23	B₂	1021	983	0.83
24	B₂	614	592	0.18

Atom	y (Å)	z (Å)
C1	0.708	1.211
C2	-0.708	1.211
C3	-1.368	-0.057
C4	1.368	-0.057
H5	1.286	2.137
H6	-1.286	2.137
H7	-2.457	-0.143
H8	2.457	-0.143
N9	0.706	-1.274
N10	-0.706	-1.274

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.4158	2.4322	1.4292	1.0921	2.1986	3.4417	2.2111	2.4841	2.8585
C2	1.4158		1.4292	2.4322	2.1986	1.0921	2.2111	3.4417	2.8585	2.4841
C3	2.4322	1.4292		2.7358	3.4434	2.1958	1.0921	3.8255	2.4048	1.3847
C4	1.4292	2.4322	2.7358		2.1958	3.4434	3.8255	1.0921	1.3847	2.4048
H5	1.0921	2.1986	3.4434	2.1958		2.5717	4.3822	2.5629	3.4596	3.9500
H6	2.1986	1.0921	2.1958	3.4434	2.5717		2.5629	4.3822	3.9500	3.4596
H7	3.4417	2.2111	1.0921	3.8255	4.3822	2.5629		4.9132	3.3592	2.0838
H8	2.2111	3.4417	3.8255	1.0921	2.5629	4.3822	4.9132		2.0838	3.3592
N9	2.4841	2.8585	2.4048	1.3847	3.4596	3.9500	3.3592	2.0838		1.4129
N10	2.8585	2.4841	1.3847	2.4048	3.9500	3.4596	2.0838	3.3592	1.4129

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	117.506	C1	C2	H6	121.951
C1	C4	H8	121.999	C1	C4	N9	123.959
C2	C1	C4	117.506	C2	C1	H5	121.951
C2	C3	H7	121.999	C2	C3	N10	123.959
C3	C2	H6	120.543	C3	N10	N9	118.535
C4	C1	H5	120.543	C4	N9	N10	118.535
H7	C3	N10	114.042	H8	C4	N9	114.042

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)