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	hartrees
Energy at 0K	-263.673939
Energy at 298.15K	-263.679667
HF Energy	-262.695508
Nuclear repulsion energy	207.261589

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3246	3074	5.49
2	A₁	3225	3055	0.56
3	A₁	1616	1530	6.53
4	A₁	1486	1408	3.25
5	A₁	1303	1234	0.01
6	A₁	1181	1119	0.14
7	A₁	1098	1040	11.16
8	A₁	1001	948	5.95
9	A₁	675	640	2.26
10	A₂	934	885	0.00
11	A₂	920	871	0.00
12	A₂	689	653	0.00
13	A₂	354	335	0.00
14	B₁	941	891	0.07
15	B₁	755	715	52.70
16	B₁	369	350	9.34
17	B₂	3235	3064	17.80
18	B₂	3219	3049	3.44
19	B₂	1613	1528	6.55
20	B₂	1436	1360	17.53
21	B₂	1309	1240	2.96
22	B₂	1089	1031	1.06
23	B₂	1062	1006	1.07
24	B₂	624	591	0.01

Atom	y (Å)	z (Å)
C1	0.693	1.183
C2	-0.693	1.183
C3	-1.323	-0.065
C4	1.323	-0.065
H5	1.273	2.101
H6	-1.273	2.101
H7	-2.405	-0.155
H8	2.405	-0.155
N9	0.670	-1.237
N10	-0.670	-1.237

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3870	2.3712	1.3979	1.0855	2.1702	3.3752	2.1727	2.4205	2.7780
C2	1.3870		1.3979	2.3712	2.1702	1.0855	2.1727	3.3752	2.7780	2.4205
C3	2.3712	1.3979		2.6451	3.3807	2.1666	1.0862	3.7287	2.3117	1.3414
C4	1.3979	2.3712	2.6451		2.1666	3.3807	3.7287	1.0862	1.3414	2.3117
H5	1.0855	2.1702	3.3807	2.1666		2.5463	4.3150	2.5241	3.3921	3.8625
H6	2.1702	1.0855	2.1666	3.3807	2.5463		2.5241	4.3150	3.8625	3.3921
H7	3.3752	2.1727	1.0862	3.7287	4.3150	2.5241		4.8100	3.2598	2.0447
H8	2.1727	3.3752	3.7287	1.0862	2.5241	4.3150	4.8100		2.0447	3.2598
N9	2.4205	2.7780	2.3117	1.3414	3.3921	3.8625	3.2598	2.0447		1.3400
N10	2.7780	2.4205	1.3414	2.3117	3.8625	3.3921	2.0447	3.2598	1.3400

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.746	C1	C2	H6	122.278
C1	C4	H8	121.503	C1	C4	N9	124.147
C2	C1	C4	116.746	C2	C1	H5	122.278
C2	C3	H7	121.503	C2	C3	N10	124.147
C3	C2	H6	120.976	C3	N10	N9	119.107
C4	C1	H5	120.976	C4	N9	N10	119.107
H7	C3	N10	114.350	H8	C4	N9	114.350

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)