PR₃ (phosphane)

mer–[Sr(Se₂PPh₂)₂(Thf)₃]

Formula Unicode styled: 
mer–[Sr(Se₂PPh₂)₂(Thf)₃]
Compound name(s): 
bis(diphenylphosphinodiselenoato)(tris(tetrahydrofuran))-strontium
Central atom: 
Selenium
Attached groups: 
PR₃ (phosphane)
Sr group (X type)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (O)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Se«V2C2OOE8B2Z0X1L1»⊕
[MLXZ]𝘲 class: 
[MX1L1]+
MLXZ class (ENC, equivalent neutral class): 
MX2

(BH₃)₂[P(Me)₂]₂

Formula Unicode styled: 
(BH₃)₂[P(Me)₂]₂
Compound name(s): 
tetramethyldiphosphine-bis(monoborane)
Central atom: 
Boron
Attached groups: 
H (hydrido)
PR₃ (phosphane)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
B«V3C4OIIIE8B4Z0X3L1»
[MLXZ]𝘲 class: 
[MX3L1]
MLXZ class (ENC, equivalent neutral class): 
MX3L1

[P(Br)₄]⊕

Formula Unicode styled: 
[P(Br)₄]⊕
Compound name(s): 
tetrabromophosphonium
Central atom: 
Bromine
Attached groups: 
PR₃ (phosphane)
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: 1
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Br«V1C1O-IE8B1Z0X0L1»⊕
[MLXZ]𝘲 class: 
[ML1]+
MLXZ class (ENC, equivalent neutral class): 
MX1