6-coordinate: ③-●-③ sandwich

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

[Eu{η⁵-C₅H₂(SiMe₃)₃}₂]

Formula Unicode styled: 
[Eu{η⁵-C₅H₂(SiMe₃)₃}₂]
Compound name(s): 
bis(η⁵-1,2,4-tris(Trimethylsilyl)cyclopentadienyl)-europium
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: 
Eu«V2C6OIIE19B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Eu(η⁵-C₅Ph₅)₂]

Formula Unicode styled: 
[Eu(η⁵-C₅Ph₅)₂]
Compound name(s): 
bis(pentaphenylcyclopentadienyl)-europium
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: 
Eu«V2C6OIIE19B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Eu(Cp*)₂]

Formula Unicode styled: 
[Eu(Cp*)₂]
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-europium
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: 
Eu«V2C6OIIE19B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Sm{η⁵-C₅H₃(SiMe₃)₂}₂]

Formula Unicode styled: 
[Sm{η⁵-C₅H₃(SiMe₃)₂}₂]
Compound name(s): 
bis(η⁵-1,3-bis(trimethylsilyl)cyclopentadienyl)-samarium
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: 
Sm«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Sm{η⁵-C₅H₃(Buᵗ)₂}₂]

Formula Unicode styled: 
[Sm{η⁵-C₅H₃(Buᵗ)₂}₂]
Compound name(s): 
bis(η⁵-1,3-di-t-butylcyclopentadienyl)-samarium
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: 
Sm«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Sm{η⁵-C₅H₂(Buᵗ)₃}₂]

Formula Unicode styled: 
[Sm{η⁵-C₅H₂(Buᵗ)₃}₂]
Compound name(s): 
bis(η⁵-1,2,4-Tri-t-butylcyclopentadienyl)-samarium
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: 
Sm«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Sm(Cp*)₂]

Formula Unicode styled: 
[Sm(Cp*)₂]
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-samarium
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: 
Sm«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Rh(η⁵-C₅HPh₄)₂]

Formula Unicode styled: 
[Rh(η⁵-C₅HPh₄)₂]
Compound name(s): 
bis(η⁵-Tetraphenylcyclopentadienyl)-rhodium
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: 
Rh«V2C6OIIE19B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Rh(Cp*)₂]⊕

Formula Unicode styled: 
[Rh(Cp*)₂]⊕
Compound name(s): 
bis(η⁵-pentamethylcyclopentadienyl)-rhodium(1+)
Central atom: 
Charge on central atom: 
1
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: 
Rh«V3C6OIIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Rh(Cp)₂]⊕

Formula Unicode styled: 
[Rh(Cp)₂]⊕
Compound name(s): 
bis(η⁵-Cyclopentadienyl)-rhodium(1+)
Central atom: 
Attached groups: 
Charge on central atom: 
1
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: 
Rh«V3C6OIIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]+
MLXZ class (ENC, equivalent neutral class): 
MX3L3

[Ru{η⁵-C₅H₄(COMe)}₂]

Formula Unicode styled: 
[Ru{η⁵-C₅H₄(COMe)}₂]
Compound name(s): 
Di(acetylcyclopentadienyl)-ruthenium
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: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(η⁶-C₆H₆)₂]²⊕

Formula Unicode styled: 
[Ru(η⁶-C₆H₆)₂]²⊕
Compound name(s): 
bis(η⁶-benzene)-ruthenium(2+)
Central atom: 
Attached groups: 
Charge on central atom: 
2
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: 
Ru«V2C6OIIE18B6Z0X0L6»2⊕
[MLXZ]𝘲 class: 
[ML6]2+
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(η⁶-C₆H₃Me₃)₂]²⊕

Formula Unicode styled: 
[Ru(η⁶-C₆H₃Me₃)₂]²⊕
Compound name(s): 
bis(η⁶-1,3,5-Trimethylbenzene)-ruthenium(2+)
Central atom: 
Attached groups: 
Charge on central atom: 
2
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: 
Ru«V2C6OIIE18B6Z0X0L6»2⊕
[MLXZ]𝘲 class: 
[ML6]2+
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(η⁵-C₅H₃Me₂)₂]

Formula Unicode styled: 
[Ru(η⁵-C₅H₃Me₂)₂]
Compound name(s): 
bis(η⁵-1,3-Dimethylcyclopentadienyl)-ruthenium
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: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(η⁵-C₅EtMe₄)(η⁵-P₅)]

Formula Unicode styled: 
[Ru(η⁵-C₅EtMe₄)(η⁵-P₅)]
Compound name(s): 
(η⁵-Ethyltetramethyl-cyclopentadienyl)-(η⁵-cyclopentaphosphorus)-ruthenium
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: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(η⁵-C₅Cl₅)(Cp*)]

Formula Unicode styled: 
[Ru(η⁵-C₅Cl₅)(Cp*)]
Compound name(s): 
(η⁵-Pentachloro-cyclopentadienyl)-(η⁵-pentamethyl-cyclopentadienyl)-ruthenium
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: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(Cp*)₂]

Formula Unicode styled: 
[Ru(Cp*)₂]
Compound name(s): 
bis(η⁵-Pentamethyl-cyclopentadienyl)-ruthenium
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: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(Cp*)(η⁶-C₆Me₆)]⊕

Formula Unicode styled: 
[Ru(Cp*)(η⁶-C₆Me₆)]⊕
Compound name(s): 
(η⁶-Hexamethylbenzene)-(η⁵-pentamethylcyclopentadienyl)-ruthenium(1+)
Central atom: 
Charge on central atom: 
1
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: 
Ru«V2C6OIIE18B6Z0X1L5»
[MLXZ]𝘲 class: 
[MX1L5]+
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(Cp)₂]

Formula Unicode styled: 
[Ru(Cp)₂]
Compound name(s): 
bis(η⁵-Cyclopentadienyl)-ruthenium
Central atom: 
Attached groups: 
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: 
Ru«V2C6OIIE18B6Z0X2L4»
[MLXZ]𝘲 class: 
[MX2L4]
MLXZ class (ENC, equivalent neutral class): 
MX2L4

[Ru(Cp)(η⁶-C₆H₆)]⊕

Formula Unicode styled: 
[Ru(Cp)(η⁶-C₆H₆)]⊕
Compound name(s): 
(η⁶-Benzene)-(η⁵-cyclopentadienyl)-ruthenium(1+)
Central atom: 
Charge on central atom: 
1
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: 
Ru«V2C6OIIE18B6Z0X1L5»
[MLXZ]𝘲 class: 
[MX1L5]+
MLXZ class (ENC, equivalent neutral class): 
MX2L4