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	hartrees
Energy at 0K	-262.650029
Energy at 298.15K	-262.656187
HF Energy	-262.650029
Nuclear repulsion energy	210.340159

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3409	3063	6.02
2	A₁	3389	3045	4.55
3	A₁	1790	1608	9.26
4	A₁	1633	1468	0.86
5	A₁	1284	1154	0.36
6	A₁	1231	1106	5.53
7	A₁	1177	1058	8.89
8	A₁	1061	953	15.97
9	A₁	737	662	5.01
10	A₂	1141	1025	0.00
11	A₂	1054	947	0.00
12	A₂	838	753	0.00
13	A₂	435	391	0.00
14	B₁	1095	984	0.05
15	B₁	853	766	42.25
16	B₁	448	403	10.56
17	B₂	3398	3054	36.88
18	B₂	3379	3036	1.77
19	B₂	1794	1612	1.51
20	B₂	1588	1427	28.86
21	B₂	1445	1298	3.56
22	B₂	1173	1054	2.07
23	B₂	1139	1023	2.60
24	B₂	682	613	0.02

Atom	y (Å)	z (Å)
C1	0.684	1.169
C2	-0.684	1.169
C3	-1.310	-0.076
C4	1.310	-0.076
H5	1.260	2.076
H6	-1.260	2.076
H7	-2.381	-0.161
H8	2.381	-0.161
N9	0.655	-1.211
N10	-0.655	-1.211

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3674	2.3508	1.3941	1.0742	2.1449	3.3412	2.1569	2.3800	2.7304
C2	1.3674		1.3941	2.3508	2.1449	1.0742	2.1569	3.3412	2.7304	2.3800
C3	2.3508	1.3941		2.6202	3.3522	2.1522	1.0743	3.6921	2.2689	1.3101
C4	1.3941	2.3508	2.6202		2.1522	3.3522	3.6921	1.0743	1.3101	2.2689
H5	1.0742	2.1449	3.3522	2.1522		2.5208	4.2737	2.5020	3.3414	3.8035
H6	2.1449	1.0742	2.1522	3.3522	2.5208		2.5020	4.2737	3.8035	3.3414
H7	3.3412	2.1569	1.0743	3.6921	4.2737	2.5020		4.7621	3.2120	2.0200
H8	2.1569	3.3412	3.6921	1.0743	2.5020	4.2737	4.7621		2.0200	3.2120
N9	2.3800	2.7304	2.2689	1.3101	3.3414	3.8035	3.2120	2.0200		1.3096
N10	2.7304	2.3800	1.3101	2.2689	3.8035	3.3414	2.0200	3.2120	1.3096

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.702	C1	C2	H6	122.473
C1	C4	H8	121.263	C1	C4	N9	123.285
C2	C1	C4	116.702	C2	C1	H5	122.473
C2	C3	H7	121.263	C2	C3	N10	123.285
C3	C2	H6	120.825	C3	N10	N9	120.013
C4	C1	H5	120.825	C4	N9	N10	120.013
H7	C3	N10	115.452	H8	C4	N9	115.452

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: HF/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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Number	Element	Mulliken
1	C	-0.203
2	C	-0.203
3	C	0.027
4	C	0.027
5	H	0.230
6	H	0.230
7	H	0.222
8	H	0.222
9	N	-0.275
10	N	-0.275

	z	Total
	4.395	4.395
CHELPG	4.198	4.198
AIM	-1.619	1.619
ESP	4.280	4.280

	x	y	z
x	2.956	0.000	0.000
y	0.000	8.776	-0.004
z	0.000	-0.004	7.956

<r²>	113.871
(<r²>)^1/2	10.671

All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: HF/6-31G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)