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	hartrees
Energy at 0K	-263.609113
Energy at 298.15K
HF Energy	-262.722824
Nuclear repulsion energy	207.699789

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3259	3089	4.18
2	A₁	3236	3068	0.22
3	A₁	1610	1526	4.57
4	A₁	1487	1409	2.07
5	A₁	1283	1217	0.00
6	A₁	1179	1118	0.14
7	A₁	1096	1039	8.79
8	A₁	991	940	6.92
9	A₁	677	641	1.67
10	A₂	844	800	0.00
11	A₂	809	767	0.00
12	A₂	333	315	0.00
13	A₂	906i	859i	0.00
14	B₁	798	756	1.30
15	B₁	721	683	43.65
16	B₁	334	316	8.90
17	B₂	3246	3077	13.99
18	B₂	3230	3062	3.74
19	B₂	1606	1523	5.10
20	B₂	1436	1361	14.79
21	B₂	1317	1248	2.82
22	B₂	1088	1031	1.26
23	B₂	1054	999	0.37
24	B₂	623	591	0.00

Atom	y (Å)	z (Å)
C1	0.691	1.180
C2	-0.691	1.180
C3	-1.319	-0.063
C4	1.319	-0.063
H5	1.270	2.094
H6	-1.270	2.094
H7	-2.398	-0.150
H8	2.398	-0.150
N9	0.671	-1.235
N10	-0.671	-1.235

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3821	2.3638	1.3933	1.0819	2.1635	3.3635	2.1642	2.4155	2.7728
C2	1.3821		1.3933	2.3638	2.1635	1.0819	2.1642	3.3635	2.7728	2.4155
C3	2.3638	1.3933		2.6385	3.3704	2.1581	1.0826	3.7187	2.3094	1.3393
C4	1.3933	2.3638	2.6385		2.1581	3.3704	3.7187	1.0826	1.3393	2.3094
H5	1.0819	2.1635	3.3704	2.1581		2.5400	4.3002	2.5116	3.3828	3.8537
H6	2.1635	1.0819	2.1581	3.3704	2.5400		2.5116	4.3002	3.8537	3.3828
H7	3.3635	2.1642	1.0826	3.7187	4.3002	2.5116		4.7968	3.2555	2.0404
H8	2.1642	3.3635	3.7187	1.0826	2.5116	4.3002	4.7968		2.0404	3.2555
N9	2.4155	2.7728	2.3094	1.3393	3.3828	3.8537	3.2555	2.0404		1.3416
N10	2.7728	2.4155	1.3393	2.3094	3.8537	3.3828	2.0404	3.2555	1.3416

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.802	C1	C2	H6	122.353
C1	C4	H8	121.375	C1	C4	N9	124.237
C2	C1	C4	116.802	C2	C1	H5	122.353
C2	C3	H7	121.375	C2	C3	N10	124.237
C3	C2	H6	120.844	C3	N10	N9	118.961
C4	C1	H5	120.844	C4	N9	N10	118.961
H7	C3	N10	114.388	H8	C4	N9	114.388

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: MP2/TZVP

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/TZVP

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)