=(CR)₄NHM (pyridine backbone X₂ + X type complex)

trans–[Ni(F)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(F)₂{NCH(CH)₄}₄]
Compound name(s): 
Difluoro-tetrapyridine-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(Cl)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(Cl)₂{NCH(CH)₄}₄]
Compound name(s): 
Dichloro-tetrapyridine-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(Br)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(Br)₂{NCH(CH)₄}₄]
Compound name(s): 
Dibromo-tetrapyridine-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(SO₃CF₃-κO)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(SO₃CF₃-κO)₂{NCH(CH)₄}₄]
Compound name(s): 
Tetrapyridine-bis(trifluoromethanesulfonato-O)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(ClO₄-κO)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(ClO₄-κO)₂{NCH(CH)₄}₄]
Compound name(s): 
bis(Perchlorato)-tetrapyridine-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(NCS-κN)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(NCS-κN)₂{NCH(CH)₄}₄]
Compound name(s): 
bis(Isothiocyanato)-tetrakis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(NCO)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(NCO)₂{NCH(CH)₄}₄]
Compound name(s): 
bis(Isocyanato)-tetrakis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(N₃)₂{NCH(CH)₄}₂]

Formula Unicode styled: 
trans–[Ni(N₃)₂{NCH(CH)₄}₂]
Compound name(s): 
Diazido-dipyridine-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Ni(I)₂{NCH(CH)₄}₄]

Formula Unicode styled: 
trans–[Ni(I)₂{NCH(CH)₄}₄]
Compound name(s): 
Di-iodo-tetrakis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Ni(Cl){NCH(CH)₄}₂(η³-C₃Ph₃)]

Formula Unicode styled: 
[Ni(Cl){NCH(CH)₄}₂(η³-C₃Ph₃)]
Compound name(s): 
(Triphenylcyclopropenyl)-chloro-bis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

mer,cis–[Ni(ONO₂-κO){NCH(CH)₄}₃(O₂NO-κ²O)]

Formula Unicode styled: 
mer,cis–[Ni(ONO₂-κO){NCH(CH)₄}₃(O₂NO-κ²O)]
Compound name(s): 
(Nitrato-O,O')-(nitrato-O)-tris(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

cis,cis,trans–[Ni{NCH(CH)₄}₂(Acac)₂]

Formula Unicode styled: 
cis,cis,trans–[Ni{NCH(CH)₄}₂(Acac)₂]
Compound name(s): 
bis(2,4-Pentanedionato)-bis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

cis,cis,trans–[Ni{S₂P(OEt)₂}₂{NCH(CH)₄}₂]

Formula Unicode styled: 
cis,cis,trans–[Ni{S₂P(OEt)₂}₂{NCH(CH)₄}₂]
Compound name(s): 
bis(O,O'-Diethyldithiophosphato)-bis(pyridyl)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Ni{NCH(CH)₄}₂(En)]²⊕

Formula Unicode styled: 
[Ni{NCH(CH)₄}₂(En)]²⊕
Compound name(s): 
bis(Ethylenediamine)-bis(pyridyl)-nickel(2+)
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Ni{NCH(CH)₄}₂(SC(O)Me-κS)₂]

Formula Unicode styled: 
[Ni{NCH(CH)₄}₂(SC(O)Me-κS)₂]
Compound name(s): 
bis(Monothioacetato-O,S)-bis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Ni(NCS-κN)₂{NCH(CH)₄}₂(Tn)]

Formula Unicode styled: 
[Ni(NCS-κN)₂{NCH(CH)₄}₂(Tn)]
Compound name(s): 
(1,2-Diaminopropane)-dipyridine-bis(isothiocyanato)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

cis–[Ni(Me)₂{NCH(CH)₄}₂]

Formula Unicode styled: 
cis–[Ni(Me)₂{NCH(CH)₄}₂]
Compound name(s): 
Dimethyl-bis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

cis–[Ni(S₂C₆H₄-κ²S){NCH(CH)₄}₂]

Formula Unicode styled: 
cis–[Ni(S₂C₆H₄-κ²S){NCH(CH)₄}₂]
Compound name(s): 
(Benzene-1,2-dithiolato-S,S')-bis(pyridine)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

cis–[Ni(CH₂SiMe₃)₂{NCH(CH)₄}₂]

Formula Unicode styled: 
cis–[Ni(CH₂SiMe₃)₂{NCH(CH)₄}₂]
Compound name(s): 
bis(Pyridine)-bis(trimethylsilylmethyl)-nickel
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

trans–[Al(F)₂{NCH(CH)₄}₄]⊕

Formula Unicode styled: 
trans–[Al(F)₂{NCH(CH)₄}₄]⊕
Compound name(s): 
Difluoro-tetrakis(pyridine)-aluminium(1+)
Central atom: 
Charge on central atom: 
0
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
C«V4C3OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4