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	hartrees
Energy at 0K	-263.474316
Energy at 298.15K	-263.480045
HF Energy	-262.644883
Nuclear repulsion energy	206.925287

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3260	3074	3.87
2	A₁	3240	3056	1.07
3	A₁	1633	1540	6.73
4	A₁	1503	1417	3.10
5	A₁	1313	1238	0.00
6	A₁	1200	1131	0.18
7	A₁	1108	1045	8.29
8	A₁	1000	943	6.75
9	A₁	678	639	2.49
10	A₂	941	887	0.00
11	A₂	930	877	0.00
12	A₂	695	655	0.00
13	A₂	359	338	0.00
14	B₁	944	890	0.02
15	B₁	760	717	41.14
16	B₁	369	348	9.73
17	B₂	3250	3065	16.87
18	B₂	3234	3050	3.72
19	B₂	1630	1537	6.09
20	B₂	1453	1370	17.61
21	B₂	1325	1249	2.43
22	B₂	1104	1041	1.96
23	B₂	1068	1007	1.18
24	B₂	628	592	0.01

Atom	y (Å)	z (Å)
C1	0.694	1.180
C2	-0.694	1.180
C3	-1.328	-0.064
C4	1.328	-0.064
H5	1.259	2.105
H6	-1.259	2.105
H7	-2.408	-0.140
H8	2.408	-0.140
N9	0.661	-1.238
N10	-0.661	-1.238

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3882	2.3747	1.3968	1.0833	2.1608	3.3717	2.1637	2.4184	2.7722
C2	1.3882		1.3968	2.3747	2.1608	1.0833	2.1637	3.3717	2.7722	2.4184
C3	2.3747	1.3968		2.6568	3.3762	2.1699	1.0826	3.7375	2.3103	1.3499
C4	1.3968	2.3747	2.6568		2.1699	3.3762	3.7375	1.0826	1.3499	2.3103
H5	1.0833	2.1608	3.3762	2.1699		2.5180	4.2997	2.5217	3.3955	3.8549
H6	2.1608	1.0833	2.1699	3.3762	2.5180		2.5217	4.2997	3.8549	3.3955
H7	3.3717	2.1637	1.0826	3.7375	4.2997	2.5217		4.8167	3.2603	2.0632
H8	2.1637	3.3717	3.7375	1.0826	2.5217	4.2997	4.8167		2.0632	3.2603
N9	2.4184	2.7722	2.3103	1.3499	3.3955	3.8549	3.2603	2.0632		1.3230
N10	2.7722	2.4184	1.3499	2.3103	3.8549	3.3955	2.0632	3.2603	1.3230

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	117.008	C1	C2	H6	121.432
C1	C4	H8	121.023	C1	C4	N9	123.385
C2	C1	C4	117.008	C2	C1	H5	121.432
C2	C3	H7	121.023	C2	C3	N10	123.385
C3	C2	H6	121.559	C3	N10	N9	119.606
C4	C1	H5	121.559	C4	N9	N10	119.606
H7	C3	N10	115.592	H8	C4	N9	115.592

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: MP2/6-31G*

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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All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: MP2/6-31G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)