As group (XZ type)

[As(NC₄H₄)₃]

Formula Unicode styled: 
[As(NC₄H₄)₃]
Compound name(s): 
Tripyrrolyl-arsine
Central atom: 
Nitrogen
Attached groups: 
(CH)₄ (tetramethanylylidene)
As group (XZ type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (-III)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
N«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1

[As{N(SiMe₃)₂}{Cr(CO)₅}₂]

Formula Unicode styled: 
[As{N(SiMe₃)₂}{Cr(CO)₅}₂]
Compound name(s): 
(bis-trimethylsilyl-amido)-bis-(pentacarbonyl-chromium)-arsenic
Central atom: 
Nitrogen
Attached groups: 
SiMe₃ (trimethylsilyl)
As group (XZ type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (-III)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
N«V5C3O-IIIE8B4L0X3Z1»
[MLXZ]𝘲 class: 
[MX3Z1]
MLXZ class (ENC, equivalent neutral class): 
MX3Z1