6-coordinate: ③-●-③ sandwich

6-coordinate: ③-●-③ sandwich
6-coordinate: metallocene

[Co(η⁶-C₆H₆)₂]⊕

Formula Unicode styled: 
[Co(η⁶-C₆H₆)₂]⊕
Compound name(s): 
bis(benzene)-cobalt(1+)
Central atom: 
Cobalt
Attached groups: 
C₆H₆ (benzene)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 20
Summary of calculated classifications: 
Co«V1C6OIE20B6Z0X0L6»⊕
[MLXZ]𝘲 class: 
[ML6]+
MLXZ class (ENC, equivalent neutral class): 
MX1L5

[Co(η⁶-C₆H₃Me₃)₂]⊕

Formula Unicode styled: 
[Co(η⁶-C₆H₃Me₃)₂]⊕
Compound name(s): 
bis(1,3,5-trimethylbenzene)-cobalt(1+)
Central atom: 
Cobalt
Attached groups: 
C₆H₃Me₃ (mesitylene)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 20
Summary of calculated classifications: 
Co«V1C6OIE20B6Z0X0L6»⊕
[MLXZ]𝘲 class: 
[ML6]+
MLXZ class (ENC, equivalent neutral class): 
MX1L5

[Co(η⁵-C₅Ph₅)₂]⊕

Formula Unicode styled: 
[Co(η⁵-C₅Ph₅)₂]⊕
Compound name(s): 
bis(η⁵-Pentaphenyl-cyclopentadienyl)-cobalt(1+)
Central atom: 
Cobalt
Attached groups: 
C₅Ph₅ (η⁵-pentaphenylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V3C6OIIIE18B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Co(η⁵-C₅H₄Me)₂]⊕

Formula Unicode styled: 
[Co(η⁵-C₅H₄Me)₂]⊕
Compound name(s): 
bis(η⁵-Methylcyclopentadienyl)-cobalt(1+)
Central atom: 
Cobalt
Attached groups: 
C₅H₄Me (η⁵-methylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V3C6OIIIE18B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Co(Cp*)₂]⊕

Formula Unicode styled: 
[Co(Cp*)₂]⊕
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-cobalt(1+)
Central atom: 
Cobalt
Attached groups: 
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V3C6OIIIE18B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Co(Cp)₂]⊕

Formula Unicode styled: 
[Co(Cp)₂]⊕
Compound name(s): 
bis(η⁵-Cyclopentadienyl)-cobalt(1+)
Central atom: 
Cobalt
Attached groups: 
Cp (η⁵-cyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Co«V3C6OIIIE18B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Co(Cp)₂]

Formula Unicode styled: 
[Co(Cp)₂]
Compound name(s): 
bis(η⁵-Cyclopentadienyl)-cobalt
Central atom: 
Cobalt
Attached groups: 
Cp (η⁵-cyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 19
Summary of calculated classifications: 
Co«V2C6OIIE19B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ni(Cp)₂]⊕

Formula Unicode styled: 
[Ni(Cp)₂]⊕
Compound name(s): 
bis(η⁵₋Cyclopentadienyl)-nickel(1+)
Central atom: 
Nickel
Attached groups: 
Cp (η⁵-cyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 19
Summary of calculated classifications: 
Ni«V3C6OIIIE19B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Ni(Cp)₂]

Formula Unicode styled: 
[Ni(Cp)₂]
Compound name(s): 
bis(Cyclopentadienyl)-nickel
Central atom: 
Nickel
Attached groups: 
Cp (η⁵-cyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 20
Summary of calculated classifications: 
Ni«V2C6OIIE20B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ni(Cp*)₂]⊕

Formula Unicode styled: 
[Ni(Cp*)₂]⊕
Compound name(s): 
Decamethyl-nickel(1+)
Central atom: 
Nickel
Attached groups: 
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 19
Summary of calculated classifications: 
Ni«V3C6OIIIE19B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Ni(η⁵-C₅Ph₅)₂]⊕

Formula Unicode styled: 
[Ni(η⁵-C₅Ph₅)₂]⊕
Compound name(s): 
Decaphenyl-nickel(1+)
Central atom: 
Nickel
Attached groups: 
C₅Ph₅ (η⁵-pentaphenylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 19
Summary of calculated classifications: 
Ni«V3C6OIIIE19B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Ni(η⁵-C₅HPh₄)₂]

Formula Unicode styled: 
[Ni(η⁵-C₅HPh₄)₂]
Compound name(s): 
bis(η⁵₋Tetraphenyl-cyclopentadienyl)-nickel
Central atom: 
Nickel
Attached groups: 
C₅HPh₄ (η⁵-tetraphenylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 20
Summary of calculated classifications: 
Ni«V2C6OIIE20B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Al(Cp*)₂]⊕

Formula Unicode styled: 
[Al(Cp*)₂]⊕
Compound name(s): 
bis(η⁵₋Pentamethyl-cyclopentadienyl)-aluminium(1+)
Central atom: 
Aluminium
Attached groups: 
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 12
Summary of calculated classifications: 
Al«V3C6OIIIE12B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Si(Cp*)₂]

Formula Unicode styled: 
[Si(Cp*)₂]
Compound name(s): 
bis(η-Pentamethyl-cyclopentadienyl)-silicon
Central atom: 
Silicon
Attached groups: 
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Si«V2C6OIIE14B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Sn(η⁵-C₅Ph₅)₂]

Formula Unicode styled: 
[Sn(η⁵-C₅Ph₅)₂]
Compound name(s): 
bis-(pentaphenylcyclopentadienyl)-tin|Decaphenyl-stannocene
Central atom: 
Tin
Attached groups: 
C₅Ph₅ (η⁵-pentaphenylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Sn«V2C6OIIE14B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Pt(Cp*)₂]²⊕

Formula Unicode styled: 
[Pt(Cp*)₂]²⊕
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-platinum(2+)
Central atom: 
Platinum
Attached groups: 
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Pt«V4C6OIVE18B6Z0X2L4»2⊕
[MLXZ]𝘲 class: 
[MX2L4]2+
MLXZ class (ENC, equivalent neutral class): 
MX4L2

[Tl(η⁶-C₆H₃Me₃)₂]⊕

Formula Unicode styled: 
[Tl(η⁶-C₆H₃Me₃)₂]⊕
Compound name(s): 
bis(η⁶-Mesitylene)-thallium(1+)
Central atom: 
Thallium
Attached groups: 
C₆H₃Me₃ (mesitylene)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Tl«V1C6OIE14B6Z0X0L6»⊕
[MLXZ]𝘲 class: 
[ML6]+
MLXZ class (ENC, equivalent neutral class): 
MX1L5

[Pb(Cp*)₂]

Formula Unicode styled: 
[Pb(Cp*)₂]
Compound name(s): 
bis(eta-Pentamethyl-cyclopentadienyl)-lead
Central atom: 
Lead
Attached groups: 
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Pb«V2C6OIIE14B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ir(Cp)(Cp*)]⊕

Formula Unicode styled: 
[Ir(Cp)(Cp*)]⊕
Compound name(s): 
(η⁵-Cyclopentadienyl)-(η⁵-pentamethyl-cyclopentadienyl)-iridium(1+)
Central atom: 
Iridium
Attached groups: 
Cp (η⁵-cyclopentadienyl)
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Ir«V3C6OIIIE18B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Ir(Cp*)₂]⊕

Formula Unicode styled: 
[Ir(Cp*)₂]⊕
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-iridium(1+)
Central atom: 
Iridium
Attached groups: 
Cp* (η⁵-pentamethylcyclopentadienyl)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Ir«V3C6OIIIE18B6Z0X2L4»⊕
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3