SeH (selenyl)

[Ta(H)₂(SeH)(η⁵-C₅H₄Buᵗ)₂]

Formula Unicode styled: 
[Ta(H)₂(SeH)(η⁵-C₅H₄Buᵗ)₂]
Compound name(s): 
dihydrido-hydroseleno-bis(η⁵-t-butyl-cyclopentadienyl)-tantalum
Central atom: 
Tantalum
Attached groups: 
H (hydrido)
SeH (selenyl)
C₅H₄Buᵗ (η⁵-t-butyl-cyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 9
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Ta«V5C9OVE18B9Z0X5L4»
[MLXZ]𝘲 class: 
[MX5L4]
MLXZ class (ENC, equivalent neutral class): 
MX5L4

[Rb(SeH)]

Formula Unicode styled: 
[Rb(SeH)]
Compound name(s): 
hydrogenselenido-rubidium|Rubidium hydrogenselenide
Central atom: 
Rubidium
Attached groups: 
SeH (selenyl)
Charge on central atom: 
Compound type: 
Lattice
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: 0
Summary of calculated classifications: 
Rb«V1C6OI»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[In(SeH)(SePh)₃]⊖

Formula Unicode styled: 
[In(SeH)(SePh)₃]⊖
Compound name(s): 
tris(benzeneselenato)-(hydroselenido)-indium(1-)
Central atom: 
Indium
Attached groups: 
SeH (selenyl)
SePh (phenylselenyl)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
In«V3C4OIIIE8B4Z0L0X4»⊖
[MLXZ]𝘲 class: 
[MX4]-
MLXZ class (ENC, equivalent neutral class): 
MX3L1

[Nb(O)(SeH)(Se₂)₂]²⊖

Formula Unicode styled: 
[Nb(O)(SeH)(Se₂)₂]²⊖
Compound name(s): 
hydroselenido-bis(diselenido)-oxo-niobate(2-)
Central atom: 
Niobium
Attached groups: 
O (oxo ⭀O X₂L)
SeH (selenyl)
Se₂ (perseleno-κ²Se)
Charge on central atom: 
-2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Nb«V5C6OVE16B8Z0X7L1»2⊖
[MLXZ]𝘲 class: 
[MX7L1]2-
MLXZ class (ENC, equivalent neutral class): 
MX5L3