5-coordinate: trigonal bipyramidal (p-block element, 1 lone pair)

Oxidation Number (ON) (Roman numerals):

Coordination Number (CN, sum of attached group denticities):

Electron Number (EN) = 𝘮 + 𝘹 +2𝘭:

Summary of calculated classifications:

Sn«V²C⁴O^IIE¹⁰B⁴Z⁰X²L²»

[MLXZ]𝘲 class:

[MX₂L₂]

MLXZ class (ENC, equivalent neutral class):

MX₂L₂

[Se(Ph)₄]

Formula Unicode styled:

[Se(Ph)₄]

Compound name(s):

Tetraphenyl-selenium

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(F)₄]

Formula Unicode styled:

[Se(F)₄]

Compound name(s):

Tetrafluoo-selenium, selenium tetrafluoride

Central atom:

Attached groups:

F (fluoro)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(F)₃(O)]⊖

Formula Unicode styled:

[Se(F)₃(O)]⊖

Compound name(s):

trifluoro-oxo-selenium(1-)

Central atom:

Attached groups:

F (fluoro)

O (oxo O⊖ X)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Cl)₃(O)]⊖

Formula Unicode styled:

[Se(Cl)₃(O)]⊖

Compound name(s):

oxo-trichloro-selenium(1-)

Central atom:

Attached groups:

O (oxo O⊖ X)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Cl)₂(Ph)₂]

Formula Unicode styled:

[Se(Cl)₂(Ph)₂]

Compound name(s):

Dichloro-diphenyl-selenium

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Cl)₂(Me)₂]

Formula Unicode styled:

[Se(Cl)₂(Me)₂]

Compound name(s):

Di-chlorodimethylselenium

Central atom:

Attached groups:

Me (methyl)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Cl)₂(Tol-p)₂]

Formula Unicode styled:

[Se(Cl)₂(Tol-p)₂]

Compound name(s):

dichloro-di-p-tolylselenium

Central atom:

Attached groups:

Tol-p (p-tolyl)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Br)(Ph)(PPh₃)]

Formula Unicode styled:

[Se(Br)(Ph)(PPh₃)]

Compound name(s):

Bromo(phenyl)(triphenylphosphino)selenium

Central atom:

Attached groups:

PPh₃ (triphenylphosphane)

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):

CN: 3

Electron Number (EN) = 𝘮 + 𝘹 +2𝘭:

Summary of calculated classifications:

Se«V²C³O^IIE¹⁰B³Z⁰X²L¹»

[MLXZ]𝘲 class:

[MX₂L₁]

MLXZ class (ENC, equivalent neutral class):

MX₂L₁

[Se(Br)(Ph)(PMe₃)]

Formula Unicode styled:

[Se(Br)(Ph)(PMe₃)]

Compound name(s):

Bromo(phenyl)(trimethylphosphino)selenium

Central atom:

Attached groups:

PMe₃ (trimethylphosphane)

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):

CN: 3

Electron Number (EN) = 𝘮 + 𝘹 +2𝘭:

Summary of calculated classifications:

Se«V²C³O^IIE¹⁰B³Z⁰X²L¹»

[MLXZ]𝘲 class:

[MX₂L₁]

MLXZ class (ENC, equivalent neutral class):

MX₂L₁

[Se(Br)₂(Ph)₂]

Formula Unicode styled:

[Se(Br)₂(Ph)₂]

Compound name(s):

Dibromo-diphenyl-selenium

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Br)₂(Me)₂]

Formula Unicode styled:

[Se(Br)₂(Me)₂]

Compound name(s):

Di-bromo-dimethyl-selenium

Central atom:

Attached groups:

Me (methyl)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Br)₂(Tol-p)₂]

Formula Unicode styled:

[Se(Br)₂(Tol-p)₂]

Compound name(s):

Dibromo-di-p-tolyl-selenium

Central atom:

Attached groups:

Tol-p (p-tolyl)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Br)₂(NPPh₃)₂]

Formula Unicode styled:

[Se(Br)₂(NPPh₃)₂]

Compound name(s):

Dibromo-bis(triphenylphosphine imide)selenium

Central atom:

Attached groups:

NPPh₃ (triphenylphosphane nitride X)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(Br)₂(CH₂CH₂Br)₂]

Formula Unicode styled:

[Se(Br)₂(CH₂CH₂Br)₂]

Compound name(s):

bis(2-Bromoethyl)-dibromo-selenium

Central atom:

Attached groups:

CH₂CH₂Br (bromoethyl)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[Se(CH₂CH₂Cl)₂(Cl)₂]

Formula Unicode styled:

[Se(CH₂CH₂Cl)₂(Cl)₂]

Compound name(s):

bis(2-Chloroethyl)-dichloro-selenium

Central atom:

Attached groups:

CH₂CH₂Cl (chloroethyl)

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:

Se«V⁴C⁴O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

catena–1D-[Se(O)(μ₂–O)]

Formula Unicode styled:

catena–1D-[Se(O)(μ₂–O)]

Compound name(s):

catena-[dioxo-selenium]

selenium dioxide

Central atom:

Attached groups:

O (oxo X₂)

O (μ₂–oxo X+X)

Charge on central atom:

0

Compound type:

Catena-1D

Valence Number (VN) = 𝘹 + 2𝘻 :

Oxidation Number (ON) (Roman numerals):

Coordination Number (CN, sum of attached group denticities):

CN: 3

Electron Number (EN) = 𝘮 + 𝘹 +2𝘭:

Summary of calculated classifications:

Se«V⁴C³O^IVE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

catena–2D-[Se]

Formula Unicode styled:

catena–2D-[Se]

Compound name(s):

catena-[Selenium] (HP)

Central atom:

Attached groups:

(no ligand)

Charge on central atom:

0

Compound type:

Catena-2D

Valence Number (VN) = 𝘹 + 2𝘻 :

Oxidation Number (ON) (Roman numerals):

ON: (O)

Coordination Number (CN, sum of attached group denticities):

Electron Number (EN) = 𝘮 + 𝘹 +2𝘭:

Summary of calculated classifications:

Se«V⁴C⁴O^OE¹⁰B⁴Z⁰L⁰X⁴»

[MLXZ]𝘲 class:

[MX₄]

MLXZ class (ENC, equivalent neutral class):

MX₄

[I(F)₄]⊕

Formula Unicode styled:

[I(F)₄]⊕

Compound name(s):

Tetrafluoroiodine(1+)

Central atom:

Iodine

Attached groups:

F (fluoro)

Charge on central atom:

1

Compound type:

Valence Number (VN) = 𝘹 + 2𝘻 :

VN: 5

Oxidation Number (ON) (Roman numerals):

ON: (V)

Coordination Number (CN, sum of attached group denticities):

Electron Number (EN) = 𝘮 + 𝘹 +2𝘭:

Summary of calculated classifications:

I«V⁵C⁴O^VE¹⁰B⁴Z⁰L⁰X⁴»^⊕

[MLXZ]𝘲 class:

[MX₄]⁺

MLXZ class (ENC, equivalent neutral class):

MX₃Z₁

[Ge(Cl)(Tp*-κ³N)]

Formula Unicode styled:

[Ge(Cl)(Tp*-κ³N)]

Compound name(s):

(Hydrogen tris(3,5-dimethylpyrazol-1-yl)borate)-chloro-germanium

Central atom:

Germanium

Attached groups:

Tp* (hydrotris(3,5-dimethylpyrazolyl)borato-κ³N)

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: