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	hartrees
Energy at 0K	-263.108537
Energy at 298.15K	-263.114111
HF Energy	-262.540396
Nuclear repulsion energy	201.522964

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3233	3121	9.24
2	A₁	3207	3096	3.50
3	A₁	1552	1498	5.22
4	A₁	1414	1365	7.62
5	A₁	1189	1148	0.30
6	A₁	1138	1099	0.89
7	A₁	1023	987	4.45
8	A₁	851	822	3.70
9	A₁	658	635	0.98
10	A₂	901	869	0.00
11	A₂	847	818	0.00
12	A₂	732	707	0.00
13	A₂	354	341	0.00
14	B₁	884	853	0.03
15	B₁	729	704	66.68
16	B₁	360	348	10.31
17	B₂	3220	3108	27.65
18	B₂	3192	3081	0.03
19	B₂	1529	1476	6.39
20	B₂	1410	1361	15.42
21	B₂	1259	1215	2.04
22	B₂	1073	1036	0.74
23	B₂	1020	985	0.85
24	B₂	614	593	0.18

Atom	y (Å)	z (Å)
C1	0.708	1.210
C2	-0.708	1.210
C3	-1.368	-0.057
C4	1.368	-0.057
H5	1.285	2.137
H6	-1.285	2.137
H7	-2.456	-0.142
H8	2.456	-0.142
N9	0.707	-1.274
N10	-0.707	-1.274

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.4153	2.4316	1.4288	1.0920	2.1980	3.4409	2.2107	2.4839	2.8583
C2	1.4153		1.4288	2.4316	2.1980	1.0920	2.2107	3.4409	2.8583	2.4839
C3	2.4316	1.4288		2.7352	3.4427	2.1955	1.0920	3.8248	2.4048	1.3846
C4	1.4288	2.4316	2.7352		2.1955	3.4427	3.8248	1.0920	1.3846	2.4048
H5	1.0920	2.1980	3.4427	2.1955		2.5709	4.3813	2.5624	3.4593	3.9498
H6	2.1980	1.0920	2.1955	3.4427	2.5709		2.5624	4.3813	3.9498	3.4593
H7	3.4409	2.2107	1.0920	3.8248	4.3813	2.5624		4.9126	3.3592	2.0835
H8	2.2107	3.4409	3.8248	1.0920	2.5624	4.3813	4.9126		2.0835	3.3592
N9	2.4839	2.8583	2.4048	1.3846	3.4593	3.9498	3.3592	2.0835		1.4133
N10	2.8583	2.4839	1.3846	2.4048	3.9498	3.4593	2.0835	3.3592	1.4133

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	117.510	C1	C2	H6	121.946
C1	C4	H8	121.992	C1	C4	N9	123.977
C2	C1	C4	117.510	C2	C1	H5	121.946
C2	C3	H7	121.992	C2	C3	N10	123.977
C3	C2	H6	120.544	C3	N10	N9	118.513
C4	C1	H5	120.544	C4	N9	N10	118.513
H7	C3	N10	114.032	H8	C4	N9	114.032

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: MP2/SDD

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/SDD

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)